blocks|key|196287|text|我假设您使用的是XML布局。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|196288|<TextView++
++++android:layout_width="match_parent"+
++++android:layout_height="match_parent"+
++++android:gravity="center"
++++android:text="@string/**yourtextstring**"
/>|code-block|syntax|javascript|196289|您也可以根据需要使用重力center_vertical或center_horizontal。|offset|length|style|CODE|196290|正如@stealthcopter在java中所评论的那样：.setGravity(Gravity.CENTER);|196291|entityMap^0|0|0|C|F|S|H|0|T|S|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@$I|T|J|U|K|L]|$I|V|J|W|K|L]]|9|@]|A|$]]|$1|M|3|N|5|6|7|X|8|@$I|Y|J|Z|K|L]]|9|@]|A|$]]|$1|O|3|-4|5|6|7|10|8|@]|9|@]|A|$]]]|P|$]]

I'm assuming you're using XML layout.

<pre><code>&lt;TextView 
 android:layout_width="match_parent" 
 android:layout_height="match_parent" 
 android:gravity="center"
 android:text="@string/**yourtextstring**"
/&gt;
</code></pre>

You can also use gravity <code>center_vertical</code> or <code>center_horizontal</code> according to your need.

and as @stealthcopter commented 
in java: <code>.setGravity(Gravity.CENTER);</code>

blocks|key|196329|text|android:gravity="center"+|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|196330|这将会起作用|unstyled|196331|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|J|8|@]|9|@]|A|$]]|$1|G|3|-4|5|F|7|K|8|@]|9|@]|A|$]]]|H|$]]

<pre><code>android:gravity="center" 
</code></pre>

This will do the trick

blocks|key|965854|text|您还可以使用以下命令动态设置它：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|965855|textView.setGravity(Gravity.CENTER_VERTICAL+%7C+Gravity.CENTER_HORIZONTAL);|code-block|syntax|javascript|965856|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You can also set it up dynamically using:

<pre><code>textView.setGravity(Gravity.CENTER_VERTICAL | Gravity.CENTER_HORIZONTAL);
</code></pre>

blocks|key|196395|text|android:layout_centerInParent="true"|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|196396|当使用布局的高度和宽度设置为wrap_content的RelativeLayout时，这是有效的。|unstyled|196397|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|J|8|@]|9|@]|A|$]]|$1|G|3|-4|5|F|7|K|8|@]|9|@]|A|$]]]|H|$]]

<pre><code>android:layout_centerInParent="true"
</code></pre>

This works when used with a RelativeLayout where the layout's height &amp; width are set to wrap_content.

blocks|key|196541|text|您还可以使用以下组合：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|196542|android:gravity="left%7Ccenter"|code-block|syntax|javascript|196543|然后，如果文本视图宽度大于"fill_parent“，文本仍将左对齐(而不是居中，因为重力仅设置为”fill_parent“)。|196544|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

You can also use the combination:

<pre><code>android:gravity="left|center"
</code></pre>

Then, if textview width is more than "fill_parent" the text will still be aligned to left (not centered as with gravity set only to "center").

blocks|key|4260166|text|应用重力：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4260167|TextView+txtView+=+(TextView)+findViewById(R.id.txtView);
txtView.setGravity(Gravity.CENTER_HORIZONTAL);|code-block|syntax|javascript|4260168|对于垂直方向：|4260169|txtView.setGravity(Gravity.CENTER_VERTICAL);|4260170|在XML中：|4260171|<TextView++++++
++++android:layout_width="fill_parent"+
++++android:layout_height="fill_parent"+
++++android:gravity="center"
++++android:text="@string/Hello_World"++++++++
/>|4260172|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|U|8|@]|9|@]|A|$]]|$1|M|3|N|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

Apply gravity: 

<pre><code>TextView txtView = (TextView) findViewById(R.id.txtView);
txtView.setGravity(Gravity.CENTER_HORIZONTAL);
</code></pre>

For vertical: 

<pre><code>txtView.setGravity(Gravity.CENTER_VERTICAL);
</code></pre>

In XML:

<pre><code>&lt;TextView 
 android:layout_width="fill_parent" 
 android:layout_height="fill_parent" 
 android:gravity="center"
 android:text="@string/Hello_World" 
/&gt;
</code></pre>

blocks|key|961464|text|有两种方法可以做到这一点。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|961465|XML代码中的第一个。您需要注意Gravity属性。您也可以在图形编辑器中找到此属性；它可能比XML编辑器更容易。|offset|length|style|CODE|961466|<TextView++
++++android:layout_width="fill_parent"+
++++android:layout_height="fill_parent"+
++++android:gravity="center_vertical%7Ccenter_horizontal"
++++android:text="Your+Text"
/>|code-block|syntax|javascript|961467|对于您的特定场景，重力值为：|961468|center_vertical%7Ccenter_horizontal|961469|在图形编辑器中，您可以找到所有可能的值，甚至可以看到它们的结果。|961470|entityMap^0|0|G|7|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@$D|W|E|X|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|Y|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|Z|8|@]|9|@]|A|$]]|$1|O|3|P|5|J|7|10|8|@]|9|@]|A|$K|L]]|$1|Q|3|R|5|6|7|11|8|@]|9|@]|A|$]]|$1|S|3|-4|5|6|7|12|8|@]|9|@]|A|$]]]|T|$]]

There are two ways of doing this.

The first in the XML code. You need to pay attention at the <code>Gravity</code> Attribute. You also can find this attribute in the Graphic Editor; it may be easier than the XML EDITOR.

<pre><code>&lt;TextView 
 android:layout_width="fill_parent" 
 android:layout_height="fill_parent" 
 android:gravity="center_vertical|center_horizontal"
 android:text="Your Text"
/&gt;
</code></pre>

For your specific scenario, the values of gravity will be: 

<pre><code>center_vertical|center_horizontal
</code></pre>

In the graphical editor you will find all the possible values, even see their results.

blocks|key|961224|text|如果您使用的是TableLayout，请确保将TableRows的重力也设置为居中。否则它将无法工作。至少在我将TableRow的重心设置为中心之前，它不会对我起作用。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|961225|例如，如下所示：|961226|<TableRow+android:id="@%2Bid/tableRow2"+android:layout_width="wrap_content"+android:layout_height="wrap_content"+android:gravity="center">++++++++
++++<TextView+android:text="@string/chf"+android:id="@%2Bid/tv_chf"+android:layout_weight="2"+android:layout_height="wrap_content"+android:layout_width="fill_parent"+android:gravity="center"></TextView>++++++++
</TableRow>|code-block|syntax|javascript|961227|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

If you are using TableLayout make sure to set the gravity of the TableRows to center, too.
Otherwise it will not work. At least it didn't work with me until I set the gravity of the TableRow to center.

For example, like this:

<pre><code>&lt;TableRow android:id="@+id/tableRow2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:gravity="center"&gt; 
 &lt;TextView android:text="@string/chf" android:id="@+id/tv_chf" android:layout_weight="2" android:layout_height="wrap_content" android:layout_width="fill_parent" android:gravity="center"&gt;&lt;/TextView&gt; 
&lt;/TableRow&gt;
</code></pre>

blocks|key|4259977|text|您需要设置TextView+(水平居中和垂直居中)，如下所示：|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|4259978|android:layout_centerHorizontal="true"+++|code-block|syntax|javascript|4259979|和|4259980|android:layout_centerVertical="true"|4259981|并且动态地使用：|4259982|textview.setGravity(Gravity.CENTER);
textView.setGravity(Gravity.CENTER_VERTICAL+%7C+Gravity.CENTER_HORIZONTAL);|4259983|entityMap^0|5|9|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|X|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|Y|8|@]|D|@]|E|$]]|$1|M|3|N|5|H|7|Z|8|@]|D|@]|E|$I|J]]|$1|O|3|P|5|6|7|10|8|@]|D|@]|E|$]]|$1|Q|3|R|5|H|7|11|8|@]|D|@]|E|$I|J]]|$1|S|3|-4|5|6|7|12|8|@]|D|@]|E|$]]]|T|$]]

You need to set TextView Gravity (Center Horizontal &amp; Center Vertical) like this:

<pre><code>android:layout_centerHorizontal="true" 
</code></pre>

and 

<pre><code>android:layout_centerVertical="true"
</code></pre>

And dynamically using:

<pre><code>textview.setGravity(Gravity.CENTER);
textView.setGravity(Gravity.CENTER_VERTICAL | Gravity.CENTER_HORIZONTAL);
</code></pre>

blocks|key|196479|text|照我的想法,|type|unstyled|depth|inlineStyleRanges|entityRanges|data|196480|android:gravity="center"|code-block|syntax|javascript|196481|胜过，|196482|android:layout_centerInParent="true"|196483|这比，|196484|android:layout_centerHorizontal="true"
android:layout_centerVertical="true"|196485|至少对于格式化文本是这样的。|196486|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|W|8|@]|9|@]|A|$]]|$1|M|3|N|5|D|7|X|8|@]|9|@]|A|$E|F]]|$1|O|3|P|5|6|7|Y|8|@]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

In my opinion, 

<pre><code>android:gravity="center"
</code></pre>

is better than, 

<pre><code>android:layout_centerInParent="true"
</code></pre>

which is better than,

<pre><code>android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
</code></pre>

at least for formatting text.

blocks|key|196851|text|对于线性布局:在XML中使用如下内容|type|unstyled|depth|inlineStyleRanges|entityRanges|data|196852|<TextView++
++++android:id="@%2Bid/textView1"
++++android:layout_width="fill_parent"+
++++android:layout_height="fill_parent"+
++++android:gravity="center_vertical%7Ccenter_horizontal"
++++android:text="Your+Text+goes+here"
/>|code-block|syntax|javascript|196853|要在运行时执行此操作，请在您的活动中使用类似以下内容|196854|TextView+textView1+=(TextView)findViewById(R.id.texView1);
textView1.setGravity(Gravity.CENTER_VERTICAL+%7C+Gravity.CENTER_HORIZONTAL);|196855|对于相对布局:在XML中使用如下内容|196856|<TextView++
++++android:id="@%2Bid/textView1"
++++android:layout_width="fill_parent"+
++++android:layout_height="fill_parent"+
++++android:layout_centerInParent="true"
++++android:text="Your+Text+goes+here"
/>|196857|196858|TextView+textView1+=(TextView)findViewById(R.id.texView1);
RelativeLayout.LayoutParams+layoutParams+=+RelativeLayout.LayoutParams)textView1.getLayoutParams();
layoutParams.addRule(RelativeLayout.CENTER_IN_PARENT,+RelativeLayout.TRUE);
textView1.setLayoutParams(layoutParams);|196859|entityMap^0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|U|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|V|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|W|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|X|8|@]|9|@]|A|$]]|$1|M|3|N|5|D|7|Y|8|@]|9|@]|A|$E|F]]|$1|O|3|H|5|6|7|Z|8|@]|9|@]|A|$]]|$1|P|3|Q|5|D|7|10|8|@]|9|@]|A|$E|F]]|$1|R|3|-4|5|6|7|11|8|@]|9|@]|A|$]]]|S|$]]

For Linear Layout:
In XML use something like this

<pre><code>&lt;TextView 
 android:id="@+id/textView1"
 android:layout_width="fill_parent" 
 android:layout_height="fill_parent" 
 android:gravity="center_vertical|center_horizontal"
 android:text="Your Text goes here"
/&gt;
</code></pre>

To do this at run time use something like this in your activity

<pre><code>TextView textView1 =(TextView)findViewById(R.id.texView1);
textView1.setGravity(Gravity.CENTER_VERTICAL | Gravity.CENTER_HORIZONTAL);
</code></pre>

For Relative Layout: in XML use some thing like this

<pre><code>&lt;TextView 
 android:id="@+id/textView1"
 android:layout_width="fill_parent" 
 android:layout_height="fill_parent" 
 android:layout_centerInParent="true"
 android:text="Your Text goes here"
/&gt;
</code></pre>

To do this at run time use something like this in your activity

<pre><code>TextView textView1 =(TextView)findViewById(R.id.texView1);
RelativeLayout.LayoutParams layoutParams = RelativeLayout.LayoutParams)textView1.getLayoutParams();
layoutParams.addRule(RelativeLayout.CENTER_IN_PARENT, RelativeLayout.TRUE);
textView1.setLayoutParams(layoutParams);
</code></pre>

blocks|key|196736|text|在XML文件中使用。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|196737|布局文件|offset|length|style|BOLD|196738|<TextView
++++android:layout_width="fill_parent"
++++android:layout_height="fill_parent"
++++android:gravity="center"
++++android:text="@string/stringtext"/>|code-block|syntax|javascript|196739|或者：|196740|在Java类中使用它|196741|TextView+textView+=(TextView)findViewById(R.id.texviewid);
textView.setGravity(Gravity.CENTER_VERTICAL+%7C+Gravity.CENTER_HORIZONTAL);|196742|entityMap^0|0|0|4|0|0|0|0|6|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|V|8|@$D|W|E|X|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|Y|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|Z|8|@]|9|@]|A|$]]|$1|O|3|P|5|6|7|10|8|@$D|11|E|12|F|G]]|9|@]|A|$]]|$1|Q|3|R|5|J|7|13|8|@]|9|@]|A|$K|L]]|$1|S|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|T|$]]

Use in the XML file.

Layout file

<pre><code>&lt;TextView
 android:layout_width="fill_parent"
 android:layout_height="fill_parent"
 android:gravity="center"
 android:text="@string/stringtext"/&gt;
</code></pre>

or:

Use this inside the Java class

<pre><code>TextView textView =(TextView)findViewById(R.id.texviewid);
textView.setGravity(Gravity.CENTER_VERTICAL | Gravity.CENTER_HORIZONTAL);
</code></pre>

blocks|key|3412775|text|使用此选项进行相对布局|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3412776|android:layout_centerInParent="true"|code-block|syntax|javascript|3412777|和其他布局|3412778|android:gravity="center"+|3412779|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Use this for relative layout 

<pre><code>android:layout_centerInParent="true"
</code></pre>

and for other layout 

<pre><code>android:gravity="center" 
</code></pre>

blocks|key|3412939|text|如果TextView's的高度和宽度为wrap+content，则TextView中的文本始终居中。但是，如果TextView's的宽度为match_parent，高度为match_parent或wrap_content，则必须编写以下代码：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3412940|对于RelativeLayout:|BOLD|3412941|<?xml+version="1.0"+encoding="utf-8"?>
<RelativeLayout+xmlns:android="http://schemas.android.com/apk/res/android"
++++android:layout_width="match_parent"
++++android:layout_height="match_parent">

++++<TextView
++++++++android:layout_width="match_parent"
++++++++android:layout_height="wrap_content"
++++++++android:gravity="center"+
++++++++android:text="Hello+World"+/>

</RelativeLayout>|code-block|syntax|javascript|3412942|对于LinearLayout:|3412943|<?xml+version="1.0"+encoding="utf-8"?>
<LinearLayout+xmlns:android="http://schemas.android.com/apk/res/android"
++++android:layout_width="match_parent"
++++android:layout_height="match_parent">

++++<TextView
++++++++android:layout_width="match_parent"
++++++++android:layout_height="wrap_content"
++++++++android:gravity="center"
++++++++android:text="Hello+World"+/>

</LinearLayout>|3412944|entityMap^0|2|A|J|C|X|8|1J|A|1X|C|2D|C|2Q|C|0|2|F|0|0|2|D|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@$9|U|A|V|B|C]|$9|W|A|X|B|C]|$9|Y|A|Z|B|C]|$9|10|A|11|B|C]|$9|12|A|13|B|C]|$9|14|A|15|B|C]|$9|16|A|17|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|18|8|@$9|19|A|1A|B|H]]|D|@]|E|$]]|$1|I|3|J|5|K|7|1B|8|@]|D|@]|E|$L|M]]|$1|N|3|O|5|6|7|1C|8|@$9|1D|A|1E|B|H]]|D|@]|E|$]]|$1|P|3|Q|5|K|7|1F|8|@]|D|@]|E|$L|M]]|$1|R|3|-4|5|6|7|1G|8|@]|D|@]|E|$]]]|S|$]]

If the <code>TextView's</code> height and width are <code>wrap content</code> then the text within the <code>TextView</code> always be centered. But if the <code>TextView's</code> width is <code>match_parent</code> and height is <code>match_parent</code> or <code>wrap_content</code> then you have to write the below code: 

For RelativeLayout:

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:layout_width="match_parent"
 android:layout_height="match_parent"&gt;

 &lt;TextView
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:gravity="center" 
 android:text="Hello World" /&gt;

&lt;/RelativeLayout&gt;
</code></pre>

For LinearLayout:

<pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
&lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:layout_width="match_parent"
 android:layout_height="match_parent"&gt;

 &lt;TextView
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:gravity="center"
 android:text="Hello World" /&gt;

&lt;/LinearLayout&gt;
</code></pre>

blocks|key|3412702|text|虽然在TextView中使用重力工作，但在API17中实现了另一种方法-|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3412703|textView.setTextAlignment(View.TEXT_ALIGNMENT_CENTER);|code-block|syntax|javascript|3412704|我不知道有什么不同，但它也是有效的。但是，仅限API级别17或更高级别。|3412705|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

While using gravity works for TextView, there's an alternate method implemented in API level 17 - 

<pre><code>textView.setTextAlignment(View.TEXT_ALIGNMENT_CENTER);
</code></pre>

Don't know the difference, but it works too. However only for API level 17 or higher.

blocks|key|965931|text|在RelativeLayout中，使用它会很好。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|965932|和另一个Button，以及您可以添加的任何其他内容。|965933|下面这些对我来说很好用。|965934|<RelativeLayout+xmlns:android="http://schemas.android.com/apk/res/android"
++++android:layout_width="fill_parent"
++++android:layout_height="fill_parent"
++++android:background="#ff314859"
++++android:paddingLeft="16dp"
++++android:paddingRight="16dp">
++++<TextView+
++++++++android:id="@%2Bid/txt_logo"
++++++++android:layout_width="fill_parent"
++++++++android:layout_height="wrap_content"
++++++++android:text="your+text+here"
++++++++android:textSize="30dp"
++++++++android:gravity="center"/>

++++++++...other+button+or+anything+else...

</RelativeLayout>|code-block|syntax|javascript|965935|entityMap^0|1|E|0|4|6|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|T|8|@$9|U|A|V|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|W|8|@]|D|@]|E|$]]|$1|J|3|K|5|L|7|X|8|@]|D|@]|E|$M|N]]|$1|O|3|-4|5|6|7|Y|8|@]|D|@]|E|$]]]|P|$]]

In <code>RelativeLayout</code>, it will be nice with it.

And another <code>Button</code> and anything else you can add.

The following works nicely for me.

<pre><code>&lt;RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:layout_width="fill_parent"
 android:layout_height="fill_parent"
 android:background="#ff314859"
 android:paddingLeft="16dp"
 android:paddingRight="16dp"&gt;
 &lt;TextView 
 android:id="@+id/txt_logo"
 android:layout_width="fill_parent"
 android:layout_height="wrap_content"
 android:text="your text here"
 android:textSize="30dp"
 android:gravity="center"/&gt;

 ...other button or anything else...

&lt;/RelativeLayout&gt;
</code></pre>

blocks|key|198365|text|使用android:textAlignment="center"|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|198366|​|198367|📷|atomic|198368|198369|+++++++<TextView
++++++++android:text="HOW+WAS\nYOUR\nDAY?"
++++++++android:layout_width="wrap_content"
++++++++android:layout_height="wrap_content"
++++++++android:textAlignment="center"
++++++++android:id="@%2Bid/textView5"
+++++++++/>|code-block|syntax|javascript|198370|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/fa84237abccb415abc59e03eba43af40.png|imageAlt^0|2|U|0|0|0|1|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Z|8|@$9|10|A|11|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|12|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|13|8|@]|D|@$9|14|A|15|1|16]]|E|$]]|$1|K|3|G|5|6|7|17|8|@]|D|@]|E|$]]|$1|L|3|M|5|N|7|18|8|@]|D|@]|E|$O|P]]|$1|Q|3|-4|5|6|7|19|8|@]|D|@]|E|$]]]|R|$S|$5|T|U|V|E|$W|X|Y|-4]]]]

Use <code>android:textAlignment="center"</code>

<a href="https://i.stack.imgur.com/l0Fzk.png" rel="noreferrer"><img src="https://i.stack.imgur.com/l0Fzk.png" alt=""></a>

<pre><code> &lt;TextView
 android:text="HOW WAS\nYOUR\nDAY?"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:textAlignment="center"
 android:id="@+id/textView5"
 /&gt;
</code></pre>

blocks|key|965983|text|您可以将文本视图的gravity设置为CENTER。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|965984|entityMap^0|9|7|J|6|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|M|8|@]|D|@]|E|$]]]|G|$]]

You can just set the <code>gravity</code> of your textview into <code>CENTER</code>.

blocks|key|3412914|text|最简单的方法(令人惊讶的是只在评论中提到，因此我将其作为答案发布)是：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3412915|textview.setGravity(Gravity.CENTER)|code-block|syntax|javascript|3412916|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Easiest way (which is surprisingly only mentioned in comments, hence why I am posting as an answer) is:

<pre><code>textview.setGravity(Gravity.CENTER)
</code></pre>

blocks|key|961283|text|如果您试图在TableLayout中的TableRow上居中显示文本，下面是我实现此目的的方法：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|961284|<TableRow+android:id="@%2Bid/rowName"
++++++++++android:layout_width="wrap_content"
++++++++++android:layout_height="wrap_content"
++++++++++android:padding="5dip"+>
++++<TextView+android:id="@%2Bid/lblSomeLabel"
++++++++++++++android:layout_width="fill_parent"
++++++++++++++android:layout_height="fill_parent"
++++++++++++++android:gravity="center"
++++++++++++++android:layout_width="0dp"
++++++++++++++android:layout_weight="100"
++++++++++++++android:text="Your+Text+Here"+/>
</TableRow>|code-block|syntax|javascript|961285|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

If you are trying to center text on a TableRow in a TableLayout, here is how I achieved this:

<pre><code>&lt;TableRow android:id="@+id/rowName"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:padding="5dip" &gt;
 &lt;TextView android:id="@+id/lblSomeLabel"
 android:layout_width="fill_parent"
 android:layout_height="fill_parent"
 android:gravity="center"
 android:layout_width="0dp"
 android:layout_weight="100"
 android:text="Your Text Here" /&gt;
&lt;/TableRow&gt;
</code></pre>

blocks|key|961502|text|如果您使用的是相对布局：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|961503|++<TextView
++++android:layout_width="wrap_content"
++++android:layout_height="wrap_content"
++++android:text="@string/stringname"
++++android:layout_centerInParent="true"/>|code-block|syntax|javascript|961504|如果您正在使用LinearLayout|961505|<TextView
++++android:layout_width="wrap_content"
++++android:layout_height="wrap_content"
++++android:text="@string/stringname"
++++android:layout_gravity="center"/>|961506|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

If you are using Relative Layout:

<pre><code> &lt;TextView
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:text="@string/stringname"
 android:layout_centerInParent="true"/&gt;
</code></pre>

If you are using LinearLayout

<pre><code>&lt;TextView
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:text="@string/stringname"
 android:layout_gravity="center"/&gt;
</code></pre>

blocks|key|4260197|text|这是我在我的应用程序中使用的答案。它在屏幕中央显示文本。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4260198|<TextView
++++android:id="@%2Bid/txtSubject"
++++android:layout_width="match_parent"
++++android:layout_height="wrap_content"
++++android:text="@string/subject"
++++android:layout_margin="10dp"
++++android:gravity="center"
++++android:textAppearance="?android:attr/textAppearanceLarge"+/>|code-block|syntax|javascript|4260199|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Here is my answer that I had used in my app. It shows text in center of the screen.

<pre><code>&lt;TextView
 android:id="@+id/txtSubject"
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:text="@string/subject"
 android:layout_margin="10dp"
 android:gravity="center"
 android:textAppearance="?android:attr/textAppearanceLarge" /&gt;
</code></pre>

blocks|key|3413022|text|试着这样做，它会起作用的|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3413023|<LinearLayout
++++android:layout_width="match_parent"
++++android:layout_height="wrap_content"
++++android:orientation="vertical"
++++android:gravity="center">
++
++++++++<TextView
++++++++android:layout_width="wrap_content"
++++++++android:layout_height="wrap_content"
++++++++android:textAlignment="center"/>

</LinearLayout>|code-block|syntax|javascript|3413024|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Try this way,it will work
<pre><code>&lt;LinearLayout
 android:layout_width=&quot;match_parent&quot;
 android:layout_height=&quot;wrap_content&quot;
 android:orientation=&quot;vertical&quot;
 android:gravity=&quot;center&quot;&gt;
 
 &lt;TextView
 android:layout_width=&quot;wrap_content&quot;
 android:layout_height=&quot;wrap_content&quot;
 android:textAlignment=&quot;center&quot;/&gt;

&lt;/LinearLayout&gt;
</code></pre>

blocks|key|3413407|text|TextView重力按照父布局工作。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3413408|LinearLayout|offset|length|style|BOLD|3413409|如果你使用LinearLayout，那么你会发现两个重力属性android:gravity+&+android:layout_gravity|3413410|android:gravity+:表示TextView内部文本的布局部分，android:layout_gravity+:表示TextView在父视图中的位置。|3413411|​|3413412|📷|atomic|3413413|3413414|如果你想设置文本水平和垂直居中，那么使用下面的代码|3413415|<LinearLayout+xmlns:android="http://schemas.android.com/apk/res/android"
++++xmlns:tools="http://schemas.android.com/tools"
++++android:layout_width="300dp"
++++android:background="@android:color/background_light"
++++android:layout_height="300dp">

++++<TextView
++++++++android:layout_width="match_parent"
++++++++android:text="Hello+World!"
++++++++android:gravity="center_horizontal"
++++++++android:layout_gravity="center_vertical"
++++++++android:layout_height="wrap_content"
++++/>
</LinearLayout>|code-block|syntax|javascript|3413416|RelativeLayout|3413417|使用可以在TextView中使用以下属性的RelativeLayout|3413418|在TextView中将“android:gravity=”设置为文本中心。|3413419|如果要水平居中，请使用android:gravity="center_horizontal“内部文本。|3413420|如果您想要垂直居中，请使用android:gravity="center_vertical“内部文本。|3413421|如果希望TextView位于父视图的中心位置，则android:layout_centerInParent=为“true”。如果希望TextView位于父视图的水平中心，则android:layout_centerHorizontal=为“true”。如果希望TextView位于父视图的垂直中心，则android:layout_centerVertical=为“true”。|3413422|<RelativeLayout+xmlns:android="http://schemas.android.com/apk/res/android"
++++xmlns:tools="http://schemas.android.com/tools"
++++android:layout_width="300dp"
++++android:background="@android:color/background_light"
++++android:layout_height="300dp">

++++<TextView
++++++++android:layout_width="match_parent"
++++++++android:text="Hello+World!"
++++++++android:gravity="center"
++++++++android:layout_centerInParent="true"
++++++++android:layout_height="wrap_content"
++++/>
</RelativeLayout>|3413423|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/8f16e65f9a04fbad34a195c81721f96f.png|imageAlt^0|0|0|C|0|0|0|0|0|1|0|0|0|0|0|0|E|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|1L|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1M|8|@$D|1N|E|1O|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|1P|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|1Q|8|@]|9|@]|A|$]]|$1|L|3|M|5|6|7|1R|8|@]|9|@]|A|$]]|$1|N|3|O|5|P|7|1S|8|@]|9|@$D|1T|E|1U|1|1V]]|A|$]]|$1|Q|3|M|5|6|7|1W|8|@]|9|@]|A|$]]|$1|R|3|S|5|6|7|1X|8|@]|9|@]|A|$]]|$1|T|3|U|5|V|7|1Y|8|@]|9|@]|A|$W|X]]|$1|Y|3|Z|5|6|7|1Z|8|@$D|20|E|21|F|G]]|9|@]|A|$]]|$1|10|3|11|5|6|7|22|8|@]|9|@]|A|$]]|$1|12|3|13|5|6|7|23|8|@]|9|@]|A|$]]|$1|14|3|15|5|6|7|24|8|@]|9|@]|A|$]]|$1|16|3|17|5|6|7|25|8|@]|9|@]|A|$]]|$1|18|3|19|5|6|7|26|8|@]|9|@]|A|$]]|$1|1A|3|1B|5|V|7|27|8|@]|9|@]|A|$W|X]]|$1|1C|3|-4|5|6|7|28|8|@]|9|@]|A|$]]]|1D|$1E|$5|1F|1G|1H|A|$1I|1J|1K|-4]]]]

TextView gravity works as per your parent layout.

LinearLayout:

If you use LinearLayout then you will find two gravity attribute
android:gravity &amp; android:layout_gravity

android:gravity : represent layout potion of internal text of TextView while
android:layout_gravity : represent TextView position in parent view.

<a href="https://i.stack.imgur.com/9cxnM.png" rel="noreferrer"><img src="https://i.stack.imgur.com/9cxnM.png" alt="enter image description here"></a>

If you want to set text horizontally &amp; vertically center then use below code this

<pre><code>&lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:tools="http://schemas.android.com/tools"
 android:layout_width="300dp"
 android:background="@android:color/background_light"
 android:layout_height="300dp"&gt;

 &lt;TextView
 android:layout_width="match_parent"
 android:text="Hello World!"
 android:gravity="center_horizontal"
 android:layout_gravity="center_vertical"
 android:layout_height="wrap_content"
 /&gt;
&lt;/LinearLayout&gt;
</code></pre>

RelativeLayout:

Using RelativeLayout you can use below property in TextView

android:gravity="center" for text center in TextView.

android:gravity="center_horizontal" inner text if you want horizontally centered.

android:gravity="center_vertical" inner text if you want vertically centered.

android:layout_centerInParent="true" if you want TextView in center position of parent view.
android:layout_centerHorizontal="true" if you want TextView in horizontally center of parent view.
android:layout_centerVertical="true" if you want TextView in vertically center of parent view.

<pre><code>&lt;RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:tools="http://schemas.android.com/tools"
 android:layout_width="300dp"
 android:background="@android:color/background_light"
 android:layout_height="300dp"&gt;

 &lt;TextView
 android:layout_width="match_parent"
 android:text="Hello World!"
 android:gravity="center"
 android:layout_centerInParent="true"
 android:layout_height="wrap_content"
 /&gt;
&lt;/RelativeLayout&gt;
</code></pre>

blocks|key|966907|text|实际上，如果排除fontPadding，我们可以做得更好。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|966908|<TextView
++android+layout_height="wrap_content"
++android+layout_height="wrap_content"
++android:includeFontPadding="false"
++android:textAlignment="center"
/>|code-block|syntax|javascript|966909|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Actually, we can do better by excluding fontPadding.

<pre class="lang-xml prettyprint-override"><code>&lt;TextView
 android layout_height="wrap_content"
 android layout_height="wrap_content"
 android:includeFontPadding="false"
 android:textAlignment="center"
/&gt;
</code></pre>

blocks|key|196667|text|正如许多答案所表明的那样，上面的工作很好。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|196668|android:gravity="center"|code-block|syntax|javascript|196669|如果您只想将其垂直居中：|196670|android:gravity="center_vertical"|196671|或者仅仅是水平方向：|196672|android:gravity="center_horizontal"|196673|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|U|8|@]|9|@]|A|$]]|$1|M|3|N|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

As many answers suggest above works fine.

<pre><code>android:gravity="center"
</code></pre>

If you want to center it just vertically:

<pre><code>android:gravity="center_vertical"
</code></pre>

or just horizontally:

<pre><code>android:gravity="center_horizontal"
</code></pre>

blocks|key|966178|text|textview的高度和宽度是换行内容，因此文本视图中的文本始终居中，然后使用以下命令在其父布局中居中：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|966179|<RelativeLayout+xmlns:android="http://schemas.android.com/apk/res/android"
++++android:layout_width="match_parent"
++++android:layout_height="match_parent">

++++<TextView
++++++++android:layout_width="wrap_content"
++++++++android:layout_height="wrap_content"
++++++++android:layout_centerInParent="true"
++++++++android:text="Hello.."/>
</RelativeLayout>|code-block|syntax|javascript|966180|对于LinearLayout，代码也是相同的：|966181|<LinearLayout+xmlns:android="http://schemas.android.com/apk/res/android"
++++android:layout_width="match_parent"
++++android:layout_height="match_parent"
++++android:gravity="center">

++++<TextView
++++++++android:layout_width="wrap_content"
++++++++android:layout_height="wrap_content"
++++++++android:text="Hello.."/>
</LinearLayout>|966182|从程序上讲，父是RelativeLayout+java代码在运行时，在您的活动中使用类似如下的代码|966183|TextView+textView1+=(TextView)findViewById(R.id.texView1);
RelativeLayout.LayoutParams+layoutParams+=+RelativeLayout.LayoutParams)textView1.getLayoutParams();
layoutParams.addRule(RelativeLayout.CENTER_IN_PARENT,+RelativeLayout.TRUE);
textView1.setLayoutParams(layoutParams);|966184|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|U|8|@]|9|@]|A|$]]|$1|M|3|N|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

The TextView's height and width are wrap content then the text within the textview always be centered, then make center in its parent layout by using:

<pre><code>&lt;RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:layout_width="match_parent"
 android:layout_height="match_parent"&gt;

 &lt;TextView
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:layout_centerInParent="true"
 android:text="Hello.."/&gt;
&lt;/RelativeLayout&gt;
</code></pre>

For LinearLayout also the code is same :

<pre><code>&lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:gravity="center"&gt;

 &lt;TextView
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:text="Hello.."/&gt;
&lt;/LinearLayout&gt;
</code></pre>

and pro-grammatically parent is RelativeLayout java code this at run time use something like this in your activity

<pre><code>TextView textView1 =(TextView)findViewById(R.id.texView1);
RelativeLayout.LayoutParams layoutParams = RelativeLayout.LayoutParams)textView1.getLayoutParams();
layoutParams.addRule(RelativeLayout.CENTER_IN_PARENT, RelativeLayout.TRUE);
textView1.setLayoutParams(layoutParams);
</code></pre>

blocks|key|196598|text|简单地说，在XML文件中，将文本视图的重心设置为中心：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|196599|<TextView
++++android:gravity="center"+/>|code-block|syntax|javascript|196600|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Simply, in your XML file, set the textview gravity to center:

<pre><code>&lt;TextView
 android:gravity="center" /&gt;
</code></pre>

blocks|key|4260815|text|您可以这样做以使文本居中|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4260816|<TextView
++++++++android:layout_width="match_parent"
++++++++android:layout_height="match_parent"
++++++++android:gravity="center"+/>|code-block|syntax|javascript|4260817|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You can do like this to get text centered 

<pre><code>&lt;TextView
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:gravity="center" /&gt;
</code></pre>

blocks|key|4261378|text|我们可以通过以下多种方式来实现这一目标：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4261379|4261380|+XML方法01|blockquote|4261381|4261382|4261383|<TextView++
++++android:id="@%2Bid/textView"
++++android:layout_height="match_parent"
++++android:layout_width="wrap_content"+
++++android:gravity="center_vertical%7Ccenter_horizontal"
++++android:text="@strings/text"
/>|code-block|syntax|javascript|4261384|4261385|+XML方法02|4261386|4261387|4261388|<TextView++
++++android:id="@%2Bid/textView"
++++android:layout_height="match_parent"
++++android:layout_width="wrap_content"+
++++android:layout_centerHorizontal="true"
++++android:layout_centerVertical="true"
++++android:text="@strings/text"
/>|4261389|4261390|+XML方法03|4261391|4261392|4261393|<TextView++
++++android:id="@%2Bid/textView"
++++android:layout_height="match_parent"
++++android:layout_width="wrap_content"+
++++android:gravity="center"
++++android:text="@strings/text"
/>|4261394|4261395|+XML方法04|4261396|4261397|4261398|<TextView++
++++android:id="@%2Bid/textView"
++++android:layout_height="match_parent"
++++android:layout_width="wrap_content"+
++++android:layout_centerInParent="true"
++++android:text="@strings/text"
/>|4261399|4261400|+Java方法01|4261401|4261402|4261403|textView.setGravity(Gravity.CENTER_VERTICAL+%7C+Gravity.CENTER_HORIZONTAL);|4261404|4261405|+Java方法02|4261406|4261407|4261408|textview.setGravity(Gravity.CENTER);|4261409|4261410|+Java方法03|4261411|4261412|4261413|textView.setTextAlignment(View.TEXT_ALIGNMENT_CENTER);|4261414|entityMap^0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|1U|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|1V|8|@]|9|@]|A|$]]|$1|C|3|D|5|E|7|1W|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|1X|8|@]|9|@]|A|$]]|$1|G|3|-4|5|6|7|1Y|8|@]|9|@]|A|$]]|$1|H|3|I|5|J|7|1Z|8|@]|9|@]|A|$K|L]]|$1|M|3|-4|5|6|7|20|8|@]|9|@]|A|$]]|$1|N|3|O|5|E|7|21|8|@]|9|@]|A|$]]|$1|P|3|-4|5|6|7|22|8|@]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|23|8|@]|9|@]|A|$]]|$1|R|3|S|5|J|7|24|8|@]|9|@]|A|$K|L]]|$1|T|3|-4|5|6|7|25|8|@]|9|@]|A|$]]|$1|U|3|V|5|E|7|26|8|@]|9|@]|A|$]]|$1|W|3|-4|5|6|7|27|8|@]|9|@]|A|$]]|$1|X|3|-4|5|6|7|28|8|@]|9|@]|A|$]]|$1|Y|3|Z|5|J|7|29|8|@]|9|@]|A|$K|L]]|$1|10|3|-4|5|6|7|2A|8|@]|9|@]|A|$]]|$1|11|3|12|5|E|7|2B|8|@]|9|@]|A|$]]|$1|13|3|-4|5|6|7|2C|8|@]|9|@]|A|$]]|$1|14|3|-4|5|6|7|2D|8|@]|9|@]|A|$]]|$1|15|3|16|5|J|7|2E|8|@]|9|@]|A|$K|L]]|$1|17|3|-4|5|6|7|2F|8|@]|9|@]|A|$]]|$1|18|3|19|5|E|7|2G|8|@]|9|@]|A|$]]|$1|1A|3|-4|5|6|7|2H|8|@]|9|@]|A|$]]|$1|1B|3|-4|5|6|7|2I|8|@]|9|@]|A|$]]|$1|1C|3|1D|5|J|7|2J|8|@]|9|@]|A|$K|L]]|$1|1E|3|-4|5|6|7|2K|8|@]|9|@]|A|$]]|$1|1F|3|1G|5|E|7|2L|8|@]|9|@]|A|$]]|$1|1H|3|-4|5|6|7|2M|8|@]|9|@]|A|$]]|$1|1I|3|-4|5|6|7|2N|8|@]|9|@]|A|$]]|$1|1J|3|1K|5|J|7|2O|8|@]|9|@]|A|$K|L]]|$1|1L|3|-4|5|6|7|2P|8|@]|9|@]|A|$]]|$1|1M|3|1N|5|E|7|2Q|8|@]|9|@]|A|$]]|$1|1O|3|-4|5|6|7|2R|8|@]|9|@]|A|$]]|$1|1P|3|-4|5|6|7|2S|8|@]|9|@]|A|$]]|$1|1Q|3|1R|5|J|7|2T|8|@]|9|@]|A|$K|L]]|$1|1S|3|-4|5|6|7|2U|8|@]|9|@]|A|$]]]|1T|$]]

We can achieve this with these multiple ways:- 

<blockquote>
 XML method 01
</blockquote>

<pre><code>&lt;TextView 
 android:id="@+id/textView"
 android:layout_height="match_parent"
 android:layout_width="wrap_content" 
 android:gravity="center_vertical|center_horizontal"
 android:text="@strings/text"
/&gt;
</code></pre>

<blockquote>
 XML method 02
</blockquote>

<pre><code>&lt;TextView 
 android:id="@+id/textView"
 android:layout_height="match_parent"
 android:layout_width="wrap_content" 
 android:layout_centerHorizontal="true"
 android:layout_centerVertical="true"
 android:text="@strings/text"
/&gt;
</code></pre>

<blockquote>
 XML method 03
</blockquote>

<pre><code>&lt;TextView 
 android:id="@+id/textView"
 android:layout_height="match_parent"
 android:layout_width="wrap_content" 
 android:gravity="center"
 android:text="@strings/text"
/&gt;
</code></pre>

<blockquote>
 XML method 04
</blockquote>

<pre><code>&lt;TextView 
 android:id="@+id/textView"
 android:layout_height="match_parent"
 android:layout_width="wrap_content" 
 android:layout_centerInParent="true"
 android:text="@strings/text"
/&gt;
</code></pre>

<blockquote>
 Java method 01
</blockquote>

<pre><code>textView.setGravity(Gravity.CENTER_VERTICAL | Gravity.CENTER_HORIZONTAL);
</code></pre>

<blockquote>
 Java method 02
</blockquote>

<pre><code>textview.setGravity(Gravity.CENTER);
</code></pre>

<blockquote>
 Java method 03
</blockquote>

<pre><code>textView.setTextAlignment(View.TEXT_ALIGNMENT_CENTER);
</code></pre>

blocks|key|4260558|text|用于水平对齐文本居中的android:gravity="center_horizontal"。用于垂直对齐文本居中的android:gravity="center_vertical"。用于垂直和水平对齐文本居中的android:gravity="center"。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4260559|<TextView
++++++++android:layout_width="match_parent"
++++++++android:gravity="center_horizontal%7Ccenter_vertical"
++++++++android:layout_height="match_parent"+/>|code-block|syntax|javascript|4260560|entityMap^0|B|Z|1M|X|2Y|O|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]|$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|T|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|U|8|@]|D|@]|E|$]]]|L|$]]

<code>android:gravity="center_horizontal"</code> for align text Center horizontally.
<code>android:gravity="center_vertical"</code> for align text Center vertically.
<code>android:gravity="center"</code> for align text Center both vertically and horizontally.

<pre><code>&lt;TextView
 android:layout_width="match_parent"
 android:gravity="center_horizontal|center_vertical"
 android:layout_height="match_parent" /&gt;
</code></pre>

blocks|key|197061|text|​|type|unstyled|depth|inlineStyleRanges|entityRanges|data|197062|📷|atomic|offset|length|197063|197064|<LinearLayout
++++++++android:layout_width="match_parent"
++++++++android:orientation="vertical"
++++++++android:gravity="center"
++++++++android:layout_height="wrap_content">
++++<TextView
++++++++++++android:id="@%2Bid/failresults"
++++++++++++android:layout_width="fill_parent"
++++++++++++android:layout_height="wrap_content"
++++++++++++android:layout_marginTop="3dp"
++++++++++++android:gravity="center_vertical%7Ccenter_horizontal"
++++++++++++android:text=""
++++++++++++android:textSize="12sp"+/>
</LinearLayout>|code-block|syntax|javascript|197065|如果线性布局中有文本视图，则需要将它们都设置为中心|197066|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/c05779979ad5d1c91a2cdc467f97f8ba.png|imageAlt^0|0|0|1|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|X|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|Y|8|@]|9|@$E|Z|F|10|1|11]]|A|$]]|$1|G|3|4|5|6|7|12|8|@]|9|@]|A|$]]|$1|H|3|I|5|J|7|13|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|14|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|15|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V|W|-4]]]]

<a href="https://i.stack.imgur.com/qOsHn.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/qOsHn.png" alt="center text"></a>

<pre><code>&lt;LinearLayout
 android:layout_width="match_parent"
 android:orientation="vertical"
 android:gravity="center"
 android:layout_height="wrap_content"&gt;
 &lt;TextView
 android:id="@+id/failresults"
 android:layout_width="fill_parent"
 android:layout_height="wrap_content"
 android:layout_marginTop="3dp"
 android:gravity="center_vertical|center_horizontal"
 android:text=""
 android:textSize="12sp" /&gt;
&lt;/LinearLayout&gt;
</code></pre>

if you have textview inside linearlayout, you need set them both gravity to center

blocks|key|961640|text|我不认为你真的需要这样做，只要在布局文件中定义TextView就行了，就像这样|type|unstyled|depth|inlineStyleRanges|entityRanges|data|961641|<RelativeLayout
++++android:layout_width="width"
++++android:layout_height="height">
++++<TextView
++++++++android:id="@%2Bid/yourid"
++++++++android:layout_centerInParent="true"
++++++++android:layout_width="wrap_content"
++++++++android:layout_height="wrap_content"
++++++++android:text="Your+text"+/>
</RelativeLayout>|code-block|syntax|javascript|961642|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

I don't think, You really need to do that just define your TextView in layout file like this

<pre><code>&lt;RelativeLayout
 android:layout_width="width"
 android:layout_height="height"&gt;
 &lt;TextView
 android:id="@+id/yourid"
 android:layout_centerInParent="true"
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:text="Your text" /&gt;
&lt;/RelativeLayout&gt;
</code></pre>

blocks|key|966228|text|将布局文件中的重力属性设置为android:gravity="center"|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|966229|entityMap^0|E|O|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

Set the gravity attribute in the layout file as
<code>android:gravity="center"</code>

blocks|key|4261811|text|+<android.support.constraint.ConstraintLayout+
++++xmlns:android="http://schemas.android.com/apk/res/android"
++++android:layout_width="match_parent"
++++android:layout_height="match_parent"
++++xmlns:app="http://schemas.android.com/apk/res-auto">


+++++++<TextView
++++++++++++android:layout_width="wrap_content"
++++++++++++android:layout_height="wrap_content"
++++++++++++android:text="HELLO"
++++++++++++android:textColor="@color/colorPrimaryDark"
++++++++++++app:layout_constraintEnd_toEndOf="parent"
++++++++++++app:layout_constraintTop_toTopOf="parent"
++++++++++++app:layout_constraintStart_toStartOf="parent"
++++++++++++app:layout_constraintBottom_toBottomOf="parent"/>

+</android.support.constraint.ConstraintLayout>|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|4261812|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code> &lt;android.support.constraint.ConstraintLayout 
 xmlns:android="http://schemas.android.com/apk/res/android"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 xmlns:app="http://schemas.android.com/apk/res-auto"&gt;


 &lt;TextView
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:text="HELLO"
 android:textColor="@color/colorPrimaryDark"
 app:layout_constraintEnd_toEndOf="parent"
 app:layout_constraintTop_toTopOf="parent"
 app:layout_constraintStart_toStartOf="parent"
 app:layout_constraintBottom_toBottomOf="parent"/&gt;

 &lt;/android.support.constraint.ConstraintLayout&gt;
</code></pre>

blocks|key|3414389|text|如果你想让你的文本视图的宽度和高度来包装内容，那么你必须根据父级支持的属性通过布局重力来管理它的位置。你也可以这样做。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3414390|<TextView++
++++android:layout_width="match_parent"+
++++android:layout_height="match_parent"+
++++android:gravity="center"/>+|code-block|syntax|javascript|3414391|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

If you are making your text view width and height to wrap content then you have to manage it's position via layout gravity according to the parent supported attributes. Else you can do. 

<pre><code>&lt;TextView 
 android:layout_width="match_parent" 
 android:layout_height="match_parent" 
 android:gravity="center"/&gt; 
</code></pre>

blocks|key|961440|text|<TextView
android:id="%2B@id/textView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
/>|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|961441|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>&lt;TextView
android:id="+@id/textView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
/&gt;
</code></pre>

blocks|key|966092|text|你试过这种方法吗？|type|unstyled|depth|inlineStyleRanges|entityRanges|data|966093|<TextView
android:id="%2B@id/txtVw"
android:gravity="center"
/>|code-block|syntax|javascript|966094|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Did you try this way?

<pre><code>&lt;TextView
android:id="+@id/txtVw"
android:gravity="center"
/&gt;
</code></pre>

blocks|key|3413180|text|在xml中使用下面的代码它对我很有效你可以改变它将在中心的方向|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3413181|<LinearLayout
++++++++android:layout_width="match_parent"
++++++++android:orientation="horizontal"
++++++++android:background="@color/colorPrimaryDark"
++++++++android:gravity="center"
++++++++android:layout_height="wrap_content">
++++++++<TextView
++++++++++++android:id="@%2Bid/id_text"
++++++++++++android:layout_width="wrap_content"
++++++++++++android:textSize="18sp"
++++++++++++android:textColor="@android:color/white"
++++++++++++android:textStyle="normal"
++++++++++++android:layout_height="wrap_content"
++++++++++++android:text="centre+me"/>
++++</LinearLayout>|code-block|syntax|javascript|3413182|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

use the below code in xml it worked for me you can change the orientation it will be in the centre

<pre><code>&lt;LinearLayout
 android:layout_width="match_parent"
 android:orientation="horizontal"
 android:background="@color/colorPrimaryDark"
 android:gravity="center"
 android:layout_height="wrap_content"&gt;
 &lt;TextView
 android:id="@+id/id_text"
 android:layout_width="wrap_content"
 android:textSize="18sp"
 android:textColor="@android:color/white"
 android:textStyle="normal"
 android:layout_height="wrap_content"
 android:text="centre me"/&gt;
 &lt;/LinearLayout&gt;
</code></pre>

blocks|key|4260778|text|使用android:gravity="center"解决您的问题。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4260779|entityMap^0|2|O|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|K|8|@]|D|@]|E|$]]]|G|$]]

Use <code>android:gravity="center"</code> to resolve your issue.

blocks|key|197944|text|<TextView++
android:layout_width="match_parent"+
android:layout_height="match_parent"+
android:gravity="center"
android:text="In+the+center"/>|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|197945|上面是用.xml文件设置的。|unstyled|197946|但我更喜欢java版本，因为如果有必要，你也可以在运行时在代码中禁用它。下面是java代码。|197947|textView1.setGravity(Gravity.CENTER_VERTICAL+%7C+Gravity.CENTER_HORIZONTAL);|197948|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|N|8|@]|9|@]|A|$]]|$1|G|3|H|5|F|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$B|C]]|$1|K|3|-4|5|F|7|Q|8|@]|9|@]|A|$]]]|L|$]]

<pre><code>&lt;TextView 
android:layout_width="match_parent" 
android:layout_height="match_parent" 
android:gravity="center"
android:text="In the center"/&gt;
</code></pre>

Above is to set it using .xml file.

but I prefer java version because you can also disable it in code while in running condition if necessary. Following is java code.

<pre><code>textView1.setGravity(Gravity.CENTER_VERTICAL | Gravity.CENTER_HORIZONTAL);
</code></pre>

blocks|key|4262063|text|对于kotlin|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|4262064|如果你想把你的TextView放在代码的中间：|CODE|4262065|textView.gravity+=+Gravity.CENTER|code-block|syntax|javascript|4262066|如果你想要horizontally中心：|4262067|textView.gravity+=+Gravity.CENTER_HORIZONTAL|4262068|或者，vertically中心：|4262069|textView.gravity+=+Gravity.CENTER_VERTICAL|4262070|entityMap^0|2|6|0|7|8|0|0|5|C|0|0|3|A|0|0^^$0|@$1|2|3|4|5|6|7|X|8|@$9|Y|A|Z|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|10|8|@$9|11|A|12|B|H]]|D|@]|E|$]]|$1|I|3|J|5|K|7|13|8|@]|D|@]|E|$L|M]]|$1|N|3|O|5|6|7|14|8|@$9|15|A|16|B|H]]|D|@]|E|$]]|$1|P|3|Q|5|K|7|17|8|@]|D|@]|E|$L|M]]|$1|R|3|S|5|6|7|18|8|@$9|19|A|1A|B|H]]|D|@]|E|$]]|$1|T|3|U|5|K|7|1B|8|@]|D|@]|E|$L|M]]|$1|V|3|-4|5|6|7|1C|8|@]|D|@]|E|$]]]|W|$]]

For kotlin:
If you want to center your <code>TextView</code> from code:
<pre><code>textView.gravity = Gravity.CENTER
</code></pre>
If you want to <code>horizontally</code> center:
<pre><code>textView.gravity = Gravity.CENTER_HORIZONTAL
</code></pre>
Or, <code>vertically</code> center:
<pre><code>textView.gravity = Gravity.CENTER_VERTICAL
</code></pre>

blocks|key|4262183|text|android:textAlignment="center"|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|4262184|这将会起作用|unstyled|4262185|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|J|8|@]|9|@]|A|$]]|$1|G|3|-4|5|F|7|K|8|@]|9|@]|A|$]]]|H|$]]

<pre><code>android:textAlignment=&quot;center&quot;
</code></pre>
this will do the trick

blocks|key|197187|text|如果您正在使用RelativeLayout，请尝试在TextView标记中使用此属性：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|197188|android:layout_centerInParent=+true|code-block|syntax|javascript|197189|entityMap^0|7|E|Q|8|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|S|8|@]|D|@]|E|$]]]|L|$]]

If you are working with <code>RelativeLayout</code>, try using this property inside your <code>TextView</code> tag :

<pre><code>android:layout_centerInParent= true
</code></pre>

blocks|key|4260819|text|试试这个：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4260820|<TextView++
++++android:layout_width="match_parent"+
++++android:layout_height="match_parent"+
++++android:gravity="center"
/>|code-block|syntax|javascript|4260821|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

try this : 

<pre><code>&lt;TextView 
 android:layout_width="match_parent" 
 android:layout_height="match_parent" 
 android:gravity="center"
/&gt;
</code></pre>

blocks|key|3413558|text|我已经添加了xml代码片段来使文本视图在线性和相对布局中居中对齐。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3413559|线性布局中的|3413560|<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Text+In+Center"
android:layout_gravity="center"
android:gravity="center"/>|code-block|syntax|javascript|3413561|相对布局中的|offset|length|style|BOLD|3413562|<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="Text+In+Center"
android:layout_centerInParent=+true/>|3413563|entityMap^0|0|0|0|0|4|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|T|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|V|8|@$K|W|L|X|M|N]]|9|@]|A|$]]|$1|O|3|P|5|F|7|Y|8|@]|9|@]|A|$G|H]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

I have added xml snippet to make a textview center alligned in both Linear and Relative Layout.

In Linear Layout 

<pre><code>&lt;TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Text In Center"
android:layout_gravity="center"
android:gravity="center"/&gt;
</code></pre>

In Relative Layout

<pre><code>&lt;TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:text="Text In Center"
android:layout_centerInParent= true/&gt;
</code></pre>

blocks|key|3413928|text|假设在屏幕中显示完整的文本视图|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|3413929|+<TextView
++++android:layout_width="match_parent"
++++android:layout_height="match_parent"
++++android:text="Hello+World!"
++++android:gravity="center"
++++/>|code-block|syntax|javascript|3413930|假设在相对布局中显示文本视图(不是完整的|3413931|<TextView
++++android:layout_width="wrap_content"
++++android:layout_height="wrap_content"
++++android:text="Hello+World!"
++++android:layout_centerInParent=true
++++/>|3413932|假设Linear_layout中的文本视图(非完整)|3413933|<TextView
++++android:layout_width="wrap_content"
++++android:layout_height="wrap_content"
++++android:text="Hello+World!"
++++android:layout_gravity="centre"
++++/>|3413934|entityMap^0|0|5|0|0|0|7|0|0|0|F|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|X|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|Y|8|@$9|Z|A|10|B|C]]|D|@]|E|$]]|$1|M|3|N|5|H|7|11|8|@]|D|@]|E|$I|J]]|$1|O|3|P|5|6|7|12|8|@$9|13|A|14|B|C]]|D|@]|E|$]]|$1|Q|3|R|5|H|7|15|8|@]|D|@]|E|$I|J]]|$1|S|3|-4|5|6|7|16|8|@]|D|@]|E|$]]]|T|$]]

Let's say Full Textview in screen

<pre><code> &lt;TextView
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:text="Hello World!"
 android:gravity="center"
 /&gt;
</code></pre>

Let's say Textview(not full) in Relative layout

<pre><code>&lt;TextView
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:text="Hello World!"
 android:layout_centerInParent=true
 /&gt;
</code></pre>

Let's say Textview(not full) in Linear_layout

<pre><code>&lt;TextView
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:text="Hello World!"
 android:layout_gravity="centre"
 /&gt;
</code></pre>

blocks|key|197889|text|通过。xml文件的重力可以设置为中心，如下所示|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|197890|<TextView++
++++android:layout_width="match_parent"+
++++android:layout_height="match_parent"+
++++android:gravity="center"
++++android:text="In+the+center"
/>|code-block|syntax|javascript|197891|通过java，下面是您可以解决特定问题的方法。|197892|textView1.setGravity(Gravity.CENTER_VERTICAL+%7C+Gravity.CENTER_HORIZONTAL);|197893|entityMap^0|3|3|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|T|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|U|8|@]|D|@]|E|$]]|$1|M|3|N|5|H|7|V|8|@]|D|@]|E|$I|J]]|$1|O|3|-4|5|6|7|W|8|@]|D|@]|E|$]]]|P|$]]

Via .<code>xml</code> file gravity can be set to center as follows

<pre><code>&lt;TextView 
 android:layout_width="match_parent" 
 android:layout_height="match_parent" 
 android:gravity="center"
 android:text="In the center"
/&gt;
</code></pre>

Via java following is the way you can solve your particular issue

<pre><code>textView1.setGravity(Gravity.CENTER_VERTICAL | Gravity.CENTER_HORIZONTAL);
</code></pre>

blocks|key|3414170|text|您可以将重力设置为垂直居中，将文本对齐设置为居中。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3414171|<TextView
+++++android:text="@string/yourText"
+++++android+layout_height="wrap_content"
+++++android+layout_height="wrap_content"
+++++android:gravity="center_vertical"
+++++android:textAlignment="center"+/>|code-block|syntax|javascript|3414172|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You can set the gravity to center vertical and textalignment to center.

<pre><code>&lt;TextView
 android:text="@string/yourText"
 android layout_height="wrap_content"
 android layout_height="wrap_content"
 android:gravity="center_vertical"
 android:textAlignment="center" /&gt;
</code></pre>

blocks|key|962133|text|必须按如下方式设置重力：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|962134|(textView.setGravity(Gravity.CENTER_VERTICAL+%7C+Gravity.CENTER_HORIZONTAL);|code-block|syntax|javascript|962135|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You must set the Gravity like this:

<pre><code>(textView.setGravity(Gravity.CENTER_VERTICAL | Gravity.CENTER_HORIZONTAL);
</code></pre>

blocks|key|962137|text|试试这个：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|962138|<TextView
++++android:layout_width="match_parent"
++++android:layout_height="match_parent"
++++android:gravity="center"+/>|code-block|syntax|javascript|962139|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Try this:

<pre><code>&lt;TextView
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:gravity="center" /&gt;
</code></pre>

blocks|key|4261848|text|试试这个：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4261849|使用LinearLayout如果您使用的是textview+height+match_parent+width+match_parent，您可以将重力文本设置为居中，并将文本对齐设置为居中文本水平对齐。如果您使用的是textview+height+|offset|length|style|BOLD|4261850|+width+wrap_content，则可以在LinearLayout中添加重心属性。|blockquote|4261851|4261852|4261853|XML代码|4261854|<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">

<TextView
++++android:layout_width="match_parent"
++++android:layout_height="match_parent"
++++android:textAlignment="center"
++++android:gravity="center"
++++android:textColor="#000"
++++android:textSize="30sp"
++++android:text="Welcome+to+Android"+/>
++++</LinearLayout>|code-block|syntax|javascript|4261855|Java代码|4261856|4261857|你可以这样编程：-|4261858|4261859|4261860|(textView.setGravity(Gravity.CENTER_VERTICAL+%7C+Gravity.CENTER_HORIZONTAL);|4261861|谢谢|4261862|entityMap^0|0|L|1B|2D|13|0|0|18|0|0|0|0|5|0|0|0|6|0|0|0|9|0|0|0|0|0|2|0^^$0|@$1|2|3|4|5|6|7|16|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|17|8|@$D|18|E|19|F|G]|$D|1A|E|1B|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|1C|8|@$D|1D|E|1E|F|G]]|9|@]|A|$]]|$1|K|3|-4|5|6|7|1F|8|@]|9|@]|A|$]]|$1|L|3|-4|5|6|7|1G|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|1H|8|@$D|1I|E|1J|F|G]]|9|@]|A|$]]|$1|O|3|P|5|Q|7|1K|8|@]|9|@]|A|$R|S]]|$1|T|3|U|5|6|7|1L|8|@$D|1M|E|1N|F|G]]|9|@]|A|$]]|$1|V|3|-4|5|6|7|1O|8|@]|9|@]|A|$]]|$1|W|3|X|5|J|7|1P|8|@$D|1Q|E|1R|F|G]]|9|@]|A|$]]|$1|Y|3|-4|5|6|7|1S|8|@]|9|@]|A|$]]|$1|Z|3|-4|5|6|7|1T|8|@]|9|@]|A|$]]|$1|10|3|11|5|Q|7|1U|8|@]|9|@]|A|$R|S]]|$1|12|3|13|5|6|7|1V|8|@$D|1W|E|1X|F|G]]|9|@]|A|$]]|$1|14|3|-4|5|6|7|1Y|8|@]|9|@]|A|$]]]|15|$]]

Try this:

<blockquote>
 Using LinearLayout if you are using textview height and width match_parent You can set the gravity text to center and text alignment to center text horizontal if you are using textview height and width wrap_content then add gravity center attribute in your LinearLayout.
</blockquote>

XML Code

<pre><code>&lt;LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"&gt;

&lt;TextView
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:textAlignment="center"
 android:gravity="center"
 android:textColor="#000"
 android:textSize="30sp"
 android:text="Welcome to Android" /&gt;
 &lt;/LinearLayout&gt;
</code></pre>

Java code

<blockquote>
 You can programatically do like this:-
</blockquote>

<pre><code>(textView.setGravity(Gravity.CENTER_VERTICAL | Gravity.CENTER_HORIZONTAL);
</code></pre>

Thank you

blocks|key|198568|text|对迟来的图形用户界面的荣誉奖|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|198569|我想给这个已经很棒的帖子增加一些价值。11年后，我们终于有了一种方法，可以从工具箱中拖放TextView并通过图形用户界面属性框选择重力。而且，值得庆幸的是，图形用户界面将这些属性简明扼要地组合为"center_vertical%7Ccenter_horizontal“。|198570|​|198571|📷|atomic|198572|198573|++++<TextView
++++android:text="This+is+my+sample+text."
++++android:layout_width="match_parent"
++++android:layout_height="35.7dp"
++++android:id="@%2Bid/textView2"
++++android:layout_marginBottom="24.7dp"
++++android:typeface="sans"
++++android:textSize="20"
++++android:gravity="center_vertical%7Ccenter_horizontal"+/>|code-block|syntax|javascript|198574|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/369b151d384364988bf2a85c91eba76c.jpeg|imageAlt^0|0|A|0|0|0|0|1|0|0|0|0^^$0|@$1|2|3|4|5|6|7|11|8|@$9|12|A|13|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|14|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|15|8|@]|D|@]|E|$]]|$1|J|3|K|5|L|7|16|8|@]|D|@$9|17|A|18|1|19]]|E|$]]|$1|M|3|I|5|6|7|1A|8|@]|D|@]|E|$]]|$1|N|3|O|5|P|7|1B|8|@]|D|@]|E|$Q|R]]|$1|S|3|-4|5|6|7|1C|8|@]|D|@]|E|$]]]|T|$U|$5|V|W|X|E|$Y|Z|10|-4]]]]

Honorable Mention for the Belated GUI
I wanted to add some value to this already fantastic thread. And finally after 11 years we now have a way to drag and drop the TextView from the toolbox and select gravity through a GUI Properties box. AND, thankfully the GUI combines the properties concisely as &quot;center_vertical|center_horizontal&quot;.
<a href="https://i.stack.imgur.com/nrKy1.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/nrKy1.jpg" alt="enter image description here" /></a>
<pre><code> &lt;TextView
 android:text=&quot;This is my sample text.&quot;
 android:layout_width=&quot;match_parent&quot;
 android:layout_height=&quot;35.7dp&quot;
 android:id=&quot;@+id/textView2&quot;
 android:layout_marginBottom=&quot;24.7dp&quot;
 android:typeface=&quot;sans&quot;
 android:textSize=&quot;20&quot;
 android:gravity=&quot;center_vertical|center_horizontal&quot; /&gt;
</code></pre>

blocks|key|962406|text|重新排列布局、图像或文本视图的位置属于对齐主题。因此，如果您希望将图像src垂直放置在中间，则应使用下面编写的代码|type|unstyled|depth|inlineStyleRanges|entityRanges|data|962407|android:layout_centerVertical="true"|code-block|syntax|javascript|962408|对于水平居中|962409|android:layout_centerHorizontal="true"|962410|或者，我认为我们也可以使用重力来将每个元素放在父布局的中间，比如android:gravity="center"|offset|length|style|CODE|962411|entityMap^0|0|0|0|0|W|O|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|U|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|W|8|@$M|X|N|Y|O|P]]|9|@]|A|$]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

Rearranging the location of the layout, image or textview comes under the topic of alignment. so if you want to put your image src in middle vertically, you should use the code below written
<pre><code>android:layout_centerVertical=&quot;true&quot;
</code></pre>
and for center Horizontally
<pre><code>android:layout_centerHorizontal=&quot;true&quot;
</code></pre>
or else, I think we can also use gravity to put every element in mid of parent layout like <code>android:gravity=&quot;center&quot;</code>

blocks|key|196979|text|<TextView
++++++++android:layout_width="wrap_content"
++++++++android:layout_height="wrap_content"
++++++++android:textSize="25dp"
++++++++android:textStyle="bold"
++++++++android:textAppearance="?android:attr/textAppearanceMedium"
++++++++android:text="Tours"
++++++++android:id="@%2Bid/textView"+/>|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|196980|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>&lt;TextView
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:textSize="25dp"
 android:textStyle="bold"
 android:textAppearance="?android:attr/textAppearanceMedium"
 android:text="Tours"
 android:id="@+id/textView" /&gt;
</code></pre>

blocks|key|4260608|text|对于那些想知道如何在TextView元素中垂直居中，同时将其保持在左侧(水平)的人来说：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4260609|android:gravity="center"
android:textAlignment="viewStart"|code-block|syntax|javascript|4260610|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

And for those wondering how to center it vertically in its TextView element while keeping it on the left (horizontally) :

<pre><code>android:gravity="center"
android:textAlignment="viewStart"
</code></pre>

blocks|key|197077|text|There+are+2+ways+to+do+this+:

1.+From+Xml
+++++use+:++
++++++++<TextView
+++++++++.........
++++++++android:gravity="center"/>

2.+From+Java+class
++++use+:+

+++++[textview].setGravity(Gravity.CENTER);|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|197078|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>There are 2 ways to do this :

1. From Xml
 use : 
 &lt;TextView
 .........
 android:gravity="center"/&gt;

2. From Java class
 use : 

 [textview].setGravity(Gravity.CENTER);
</code></pre>

blocks|key|4260945|text|您可以使用android:gravity=“android:gravity=”将文本视图居中|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4260946|代码如下所示|4260947|++++<TextView
+++++android:text="@string/yourText"
+++++android+layout_height="wrap_content"
+++++android+layout_height="wrap_content"
+++++android:gravity="center"+/>|code-block|syntax|javascript|4260948|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

You can center a Text View using android:gravity="center"

The code goes as follows

<pre><code> &lt;TextView
 android:text="@string/yourText"
 android layout_height="wrap_content"
 android layout_height="wrap_content"
 android:gravity="center" /&gt;
</code></pre>

blocks|key|3413507|text|如果TextView没有将height+/+width属性设置为wrap_content，则只需使用android:gravity="center"。但有些人抱怨说，使用它并不起作用。这是因为它们的布局不具有相同的重力。您可以设置|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3413508|TEXTVIEW中的android:layout_gravity="center"+(这将仅适用于TextView)|BOLD|3413509|或|3413510|父布局中的android:gravity="center"+(这将应用于其中的所有视图)|3413511|entityMap^0|W|C|1E|O|0|A|V|16|G|0|0|1|0|0|3|U|E|5|O|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]|$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|T|8|@$9|U|A|V|B|C]|$9|W|A|X|B|H]]|D|@]|E|$]]|$1|I|3|J|5|6|7|Y|8|@$9|Z|A|10|B|H]]|D|@]|E|$]]|$1|K|3|L|5|6|7|11|8|@$9|12|A|13|B|H]|$9|14|A|15|B|H]|$9|16|A|17|B|C]]|D|@]|E|$]]|$1|M|3|-4|5|6|7|18|8|@]|D|@]|E|$]]]|N|$]]

If that TextView doesn't have the height / width attributes set to <code>wrap_content</code>, just use <code>android:gravity="center"</code>. But some people complain that using that does not work. That's because their layout doesn't have the same gravity. You can set 

<code>android:layout_gravity="center"</code> IN THE TEXTVIEW (this will apply only to the TextView)

or

<code>android:gravity="center"</code> IN THE PARENT LAYOUT (this will apply to all the views inside it)

blocks|key|197513|text|在ConstraintLayout中，对于任何视图：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|197514|(使用约束布局时，请将高度和宽度设置为0，并让约束管理视图边界。)|197515|<View
++++android:layout_width="0dp"
++++android:layout_height="0dp"
++++app:layout_constraintBottom_toBottomOf="parent"
++++app:layout_constraintLeft_toLeftOf="parent"
++++app:layout_constraintRight_toRightOf="parent"
++++app:layout_constraintTop_toTopOf="parent"+/>|code-block|syntax|javascript|197516|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

In ConstraintLayout for any view:

(When you are using a constraint layout, set height &amp; width to 0, and let the constraint to manage view bounds.)

<pre><code>&lt;View
 android:layout_width="0dp"
 android:layout_height="0dp"
 app:layout_constraintBottom_toBottomOf="parent"
 app:layout_constraintLeft_toLeftOf="parent"
 app:layout_constraintRight_toRightOf="parent"
 app:layout_constraintTop_toTopOf="parent" /&gt;
</code></pre>

blocks|key|3413849|text|如何将视图或其内容(如TextView或|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3413850|+)水平和垂直居中？layout_gravity可用于将视图定位在其父视图的中心。而重力属性用于定位视图的内容，例如位于视图中心的“文本”。|blockquote|3413851|3413852|3413853|水平居中(1)+TextView+|offset|length|style|BOLD|3413854|​|3413855|📷|atomic|3413856|3413857|<LinearLayout+xmlns:android="http://schemas.android.com/apk/res/android"
++++xmlns:tools="http://schemas.android.com/tools"
++++android:layout_width="match_parent"
++++android:layout_height="match_parent"
+++++++android:orientation="vertical"
+++++++android:layout_margin="10dp"
++++tools:context=".MainActivity"+>

++++<TextView
++++++++android:layout_width="wrap_content"
++++++++android:layout_height="wrap_content"
++++++++android:text="Hello+World!"
++++++++android:layout_gravity="center"
++++++++android:background="#333"
++++++++android:textColor="#fff"
++++++++/>

</LinearLayout>|code-block|syntax|javascript|3413858|(+2)+TextView+垂直居中|3413859|3413860|+android:layout_gravity=“center_vertical”不工作！！|3413861|3413862|3413863|要使TextView垂直居中，您需要使用技巧。将TextView放在RelativeLayout中，然后将TextView属性android:layout_centerInParent=设置为“true”|3413864|3413865|3413866|<RelativeLayout+xmlns:android="http://schemas.android.com/apk/res/android"
++++xmlns:tools="http://schemas.android.com/tools"
++++android:layout_width="match_parent"
++++android:layout_height="match_parent"
+++++++android:orientation="vertical"
+++++++android:layout_margin="10dp"
++++tools:context=".MainActivity"+>

++++<TextView
++++++++android:layout_width="fill_parent"
++++++++android:layout_height="wrap_content"
++++++++android:text="Hello+World!"
++++++++android:layout_centerInParent="true"
++++++++android:layout_gravity="center_vertical"
++++++++android:gravity="center"
++++++++android:background="#333"
++++++++android:textColor="#fff"
++++++++/>

</RelativeLayout>|3413867|(+3)文本水平居中|3413868|3413869|+android:gravity=“center_horizontal”|3413870|3413871|3413872|3413873|3413874|3413875|(+4)文本水平和垂直居中|3413876|3413877|+android:gravity=“居中”这将使文本水平和垂直居中|3413878|3413879|3413880|3413881|3413882|3413883|3413884|+|3413885|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/3e00417587dfd3a35e19f2048a5ef7f1.png|imageAlt|1|https://ask.qcloudimg.com/http-save/yehe-900000/cffbec58c22ab2051ea35db93ce3080b.png|2|https://ask.qcloudimg.com/http-save/yehe-900000/882e487e183d380769e1f708c91427e7.png|3|https://ask.qcloudimg.com/http-save/yehe-900000/e5e996d8fa5c73338fa49391087cac58.png^0|0|0|0|0|7|A|0|0|0|1|0|0|0|0|0|E|0|0|0|0|0|0|0|1|1|0|0|0|0|A|0|0|0|0|0|0|0|1|2|0|0|0|D|0|0|0|0|0|0|0|1|3|0|0|0|0^^$0|@$1|2|3|4|5|6|7|2C|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|2D|8|@]|9|@]|A|$]]|$1|E|3|-4|5|6|7|2E|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|2F|8|@]|9|@]|A|$]]|$1|G|3|H|5|6|7|2G|8|@$I|2H|J|2I|K|L]]|9|@]|A|$]]|$1|M|3|N|5|6|7|2J|8|@]|9|@]|A|$]]|$1|O|3|P|5|Q|7|2K|8|@]|9|@$I|2L|J|2M|1|2N]]|A|$]]|$1|R|3|N|5|6|7|2O|8|@]|9|@]|A|$]]|$1|S|3|T|5|U|7|2P|8|@]|9|@]|A|$V|W]]|$1|X|3|Y|5|6|7|2Q|8|@$I|2R|J|2S|K|L]]|9|@]|A|$]]|$1|Z|3|-4|5|6|7|2T|8|@]|9|@]|A|$]]|$1|10|3|11|5|D|7|2U|8|@]|9|@]|A|$]]|$1|12|3|-4|5|6|7|2V|8|@]|9|@]|A|$]]|$1|13|3|-4|5|6|7|2W|8|@]|9|@]|A|$]]|$1|14|3|15|5|6|7|2X|8|@]|9|@]|A|$]]|$1|16|3|P|5|Q|7|2Y|8|@]|9|@$I|2Z|J|30|1|31]]|A|$]]|$1|17|3|N|5|6|7|32|8|@]|9|@]|A|$]]|$1|18|3|19|5|U|7|33|8|@]|9|@]|A|$V|W]]|$1|1A|3|1B|5|6|7|34|8|@$I|35|J|36|K|L]]|9|@]|A|$]]|$1|1C|3|-4|5|6|7|37|8|@]|9|@]|A|$]]|$1|1D|3|1E|5|D|7|38|8|@]|9|@]|A|$]]|$1|1F|3|-4|5|6|7|39|8|@]|9|@]|A|$]]|$1|1G|3|-4|5|6|7|3A|8|@]|9|@]|A|$]]|$1|1H|3|N|5|6|7|3B|8|@]|9|@]|A|$]]|$1|1I|3|P|5|Q|7|3C|8|@]|9|@$I|3D|J|3E|1|3F]]|A|$]]|$1|1J|3|N|5|6|7|3G|8|@]|9|@]|A|$]]|$1|1K|3|1L|5|6|7|3H|8|@$I|3I|J|3J|K|L]]|9|@]|A|$]]|$1|1M|3|-4|5|6|7|3K|8|@]|9|@]|A|$]]|$1|1N|3|1O|5|D|7|3L|8|@]|9|@]|A|$]]|$1|1P|3|-4|5|6|7|3M|8|@]|9|@]|A|$]]|$1|1Q|3|-4|5|6|7|3N|8|@]|9|@]|A|$]]|$1|1R|3|N|5|6|7|3O|8|@]|9|@]|A|$]]|$1|1S|3|P|5|Q|7|3P|8|@]|9|@$I|3Q|J|3R|1|3S]]|A|$]]|$1|1T|3|N|5|6|7|3T|8|@]|9|@]|A|$]]|$1|1U|3|-4|5|6|7|3U|8|@]|9|@]|A|$]]|$1|1V|3|1W|5|D|7|3V|8|@]|9|@]|A|$]]|$1|1X|3|-4|5|6|7|3W|8|@]|9|@]|A|$]]]|1Y|$1Z|$5|20|21|22|A|$23|24|25|-4]]|26|$5|20|21|22|A|$23|27|25|-4]]|28|$5|20|21|22|A|$23|29|25|-4]]|2A|$5|20|21|22|A|$23|2B|25|-4]]]]

<blockquote>
 How to center a view or its content e.g. TextView or Button
 horizontally and vertically? layout_gravity can be used to position a
 view in the center of its parent. While gravity attribute is used to
 position view’s content e.g. “text” in the center of the view.
</blockquote>

( 1 ) Center TextView Horizontally

<a href="https://i.stack.imgur.com/A3YFH.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/A3YFH.png" alt="enter image description here"></a>

<pre><code>&lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:tools="http://schemas.android.com/tools"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:orientation="vertical"
 android:layout_margin="10dp"
 tools:context=".MainActivity" &gt;

 &lt;TextView
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:text="Hello World!"
 android:layout_gravity="center"
 android:background="#333"
 android:textColor="#fff"
 /&gt;

&lt;/LinearLayout&gt;
</code></pre>

( 2 ) Center TextView Vertically

<blockquote>
 android:layout_gravity=”center_vertical” dose not work!!
</blockquote>

To center TextView vertically, you need to make a trick. Place TextView inside a RelativeLayout then set the TextView attribute android:layout_centerInParent=”true”
<a href="https://i.stack.imgur.com/YL6gm.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/YL6gm.png" alt="enter image description here"></a>

<pre><code>&lt;RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
 xmlns:tools="http://schemas.android.com/tools"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:orientation="vertical"
 android:layout_margin="10dp"
 tools:context=".MainActivity" &gt;

 &lt;TextView
 android:layout_width="fill_parent"
 android:layout_height="wrap_content"
 android:text="Hello World!"
 android:layout_centerInParent="true"
 android:layout_gravity="center_vertical"
 android:gravity="center"
 android:background="#333"
 android:textColor="#fff"
 /&gt;

&lt;/RelativeLayout&gt;
</code></pre>

( 3 ) Center Text Horizontally

<blockquote>
 android:gravity=”center_horizontal"
</blockquote>

<a href="https://i.stack.imgur.com/NSdqt.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/NSdqt.png" alt="enter image description here"></a>

( 4 ) Center Text Horizontally &amp; Vertically

<blockquote>
 android:gravity=”center” this will center the text horizontally and
 vertically
</blockquote>

<a href="https://i.stack.imgur.com/nLpya.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/nLpya.png" alt="enter image description here"></a>

<blockquote>
<pre><code>&lt;TextView
 android:layout_width="fill_parent"
 android:layout_height="100dp"
 android:text="Hello World!"
 android:gravity="center"
 android:background="#333"
 android:textColor="#fff"
 /&gt;
</code></pre>
</blockquote>

blocks|key|4261490|text|使用TextView中的“重力”属性使文本在垂直和水平方向居中。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4261491|android:gravity="center"|code-block|syntax|javascript|4261492|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Use Gravity Property in the TextView to center the Text Vertically and Horizontally.

<pre><code>android:gravity="center"
</code></pre>

blocks|key|3414119|text|使用android:gravity="center“为父对象|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3414120|<LinearLayout
++++android:layout_width="200dp"
++++android:layout_height="200dp"

++++android:gravity="center"
++++>
++++<TextView
++++++++android:layout_width="match_parent"
++++++++android:layout_height="wrap_content"
++++++++android:gravity="center"
++++++++android:text="Hello+world"
++++++++/>
</LinearLayout>|code-block|syntax|javascript|3414121|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

use android:gravity="center" to parent

<pre><code>&lt;LinearLayout
 android:layout_width="200dp"
 android:layout_height="200dp"

 android:gravity="center"
 &gt;
 &lt;TextView
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:gravity="center"
 android:text="Hello world"
 /&gt;
&lt;/LinearLayout&gt;
</code></pre>

blocks|key|3414140|text|以下是解决方案。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3414141|<TextView++
+++++++android:layout_width="match_parent"+
+++++++android:layout_height="match_parent"+
+++++++android:gravity="center"
+++++++android:text="**Your+String+Value**"+/>|code-block|syntax|javascript|3414142|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Here is solution.

<pre><code>&lt;TextView 
 android:layout_width="match_parent" 
 android:layout_height="match_parent" 
 android:gravity="center"
 android:text="**Your String Value**" /&gt;
</code></pre>

blocks|key|962089|text|您可以为此更改android:gravity。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|962090|android:gravity="center"或|962091|如果要水平居中或垂直居中|962092|android:gravity="center_horizontal"|962093|android:gravity="center_vertical"|962094|entityMap^0|7|F|0|0|O|0|0|0|Z|0|0|X|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|S|8|@$9|T|A|U|B|C]]|D|@]|E|$]]|$1|H|3|I|5|6|7|V|8|@]|D|@]|E|$]]|$1|J|3|K|5|6|7|W|8|@$9|X|A|Y|B|C]]|D|@]|E|$]]|$1|L|3|M|5|6|7|Z|8|@$9|10|A|11|B|C]]|D|@]|E|$]]|$1|N|3|-4|5|6|7|12|8|@]|D|@]|E|$]]]|O|$]]

You can change<code>android:gravity</code> for this.

<code>android:gravity="center"</code> or 

if you want to center horizontal or vertical

<code>android:gravity="center_horizontal"</code>

<code>android:gravity="center_vertical"</code>

blocks|key|198090|text|你可以在java中使用:+textview.setGravity(Gravity.CENTER)；|type|unstyled|depth|inlineStyleRanges|entityRanges|data|198091|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

You can programatically do this in java with: textview.setGravity(Gravity.CENTER);

blocks|key|3414410|text|文本视图的宽度和高度应该是居中的，并在文本视图属性中添加match_parent“android:gravity=”。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3414411|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Textview width and height should be match_parent and add android:gravity="center" in your textview attributes.

blocks|key|198315|text|如果您的XML文件中只有一个TextView，那么您可以将父视图重心设置为中心。这将使您的子元素位于屏幕的中心，然后您可以将您的子视图作为高度和宽度的包裹。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|198316|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

If you have only one single TextView into your XML file then you can make the parent view gravity as the centre.
This will make your child element in the centre of the screen and then you can make your child view as a wrap for both height and width.

blocks|key|3414774|text|对于文本的布局，最好使用|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3414775|Android:textAlignment=“中心”|3414776|对于对象等的其他布局，它也很好用|3414777|Android:gravity=“中心”|3414778|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|L|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|M|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

For the layout of text, it is better to use
android:textAlignment=&quot;center&quot;
and for the other layout of objects etc, it's good to use
android:gravity=&quot;center&quot;

blocks|key|3414275|text|android:gravity="centre"+|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|3414276|这将帮助您将文本视图居中。|unstyled|3414277|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|J|8|@]|9|@]|A|$]]|$1|G|3|-4|5|F|7|K|8|@]|9|@]|A|$]]]|H|$]]

<pre><code>android:gravity="centre" 
</code></pre>

This would help you to centre the textview.

How do I center the text horizontally and vertically in a <code>TextView</code>, so that it appears exactly in the middle of the <code>TextView</code> in <code>Android</code>?

How do I center text horizontally and vertically in a TextView?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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如何使文本在TextView中水平和垂直居中，以便在Android中恰好显示在TextView的中间

问如何在TextView中将文本水平和垂直居中？
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问如何在TextView中将文本水平和垂直居中？
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