Android使用bindService作为中间人对象开启服务

Android使用bindService作为中间人对象开启服务

项目结构如下:

image

MyService:

<pre spellcheck="false" class="md-fences md-end-block contain-cm modeLoaded" lang="java" contenteditable="false" cid="n14" mdtype="fences" style="box-sizing: border-box; overflow: visible; font-family: Consolas, "Liberation Mono", Courier, monospace; font-size: 0.9em; white-space: normal; display: block; break-inside: avoid; text-align: left; background-image: inherit; background-position: inherit; background-size: inherit; background-repeat: inherit; background-attachment: inherit; background-origin: inherit; background-clip: inherit; background-color: rgb(248, 248, 248); position: relative !important; border: 1px solid rgb(223, 226, 229); border-radius: 3px; padding: 8px 1em 6px; margin-bottom: 15px; margin-top: 15px; width: inherit; color: rgb(51, 51, 51); font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">package com.demo.secondservice; ​ import android.app.Service; import android.content.Intent; import android.os.Binder; import android.os.IBinder; import android.widget.Toast; ​ public class MyService extends Service { public MyService() { } ​ @Override public IBinder onBind(Intent intent) { ​ ​ ​ ​ return new MyBind(); } ​ ​ public void banZheng(int money) { ​ if(money>1000){ Toast.makeText(getApplicationContext(), "帮你办", Toast.LENGTH_LONG).show(); ​ ​ }else { ​ Toast.makeText(getApplicationContext(), "钱少,不办", Toast.LENGTH_LONG).show(); ​ } } ​ //定义中间人 public class MyBind extends Binder{ ​ public void callBanZheng(int money){ ​ //调用办证的方法 banZheng(money); ​ } ​ ​ } } ​</pre>

MainActivity:

<pre spellcheck="false" class="md-fences md-end-block contain-cm modeLoaded" lang="java" contenteditable="false" cid="n25" mdtype="fences" style="box-sizing: border-box; overflow: visible; font-family: Consolas, "Liberation Mono", Courier, monospace; font-size: 0.9em; white-space: normal; display: block; break-inside: avoid; text-align: left; background-image: inherit; background-position: inherit; background-size: inherit; background-repeat: inherit; background-attachment: inherit; background-origin: inherit; background-clip: inherit; background-color: rgb(248, 248, 248); position: relative !important; border: 1px solid rgb(223, 226, 229); border-radius: 3px; padding: 8px 1em 6px; margin-bottom: 15px; margin-top: 15px; width: inherit; color: rgb(51, 51, 51); font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;">package com.demo.secondservice; ​ import android.content.ComponentName; import android.content.Intent; import android.content.ServiceConnection; import android.os.IBinder; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.view.View; ​ public class MainActivity extends AppCompatActivity { MyConn myConn; MyService.MyBind myBind; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); Intent intent = new Intent(MainActivity.this, MyService.class); // startService(intent); //连接服务 myConn = new MyConn(); bindService(intent,myConn,BIND_AUTO_CREATE); } ​ public void click(View view) { ​ //自己new对象 脱离了谷歌框架 // MyService myService = new MyService(); myBind.callBanZheng(10200); ​ ​ } ​ ​ //监视服务的状态 private class MyConn implements ServiceConnection{ ​ ​ //当服务连接成功调用 @Override public void onServiceConnected(ComponentName name, IBinder service) { ​ myBind = (MyService.MyBind) service; ​ ​ } ​ //失去连接 @Override public void onServiceDisconnected(ComponentName name) { ​ } } ​ ​ @Override protected void onDestroy() { ​ //解绑服务 unbindService(myConn); super.onDestroy(); } } ​</pre>

activity_main.xml:

<pre spellcheck="false" class="md-fences md-end-block contain-cm modeLoaded" lang="java" contenteditable="false" cid="n36" mdtype="fences" style="box-sizing: border-box; overflow: visible; font-family: Consolas, "Liberation Mono", Courier, monospace; font-size: 0.9em; white-space: normal; display: block; break-inside: avoid; text-align: left; background-image: inherit; background-position: inherit; background-size: inherit; background-repeat: inherit; background-attachment: inherit; background-origin: inherit; background-clip: inherit; background-color: rgb(248, 248, 248); position: relative !important; border: 1px solid rgb(223, 226, 229); border-radius: 3px; padding: 8px 1em 6px; margin-bottom: 15px; margin-top: 15px; width: inherit; color: rgb(51, 51, 51); font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: 2; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration-style: initial; text-decoration-color: initial;"><?xml version="1.0" encoding="utf-8"?> <android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context=".MainActivity"> ​ <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Hello World!" app:layout_constraintBottom_toBottomOf="parent" app:layout_constraintLeft_toLeftOf="parent" app:layout_constraintRight_toRightOf="parent" app:layout_constraintTop_toTopOf="parent" /> ​ <Button android:onClick="click" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="开启服务" /> ​ </android.support.constraint.ConstraintLayout></pre>