Android屏幕坐标系:如何设置Android屏幕左下方的(0,0)作为xy平面的第一个四分之一

int screenWidth = getResources().getDisplayMetrics().widthPixels;
int screenHeight = getResources().getDisplayMetrics().heightPixels;

float distanceToTop = 0;
float distanceToBottom = screenHeight - 1;
float distanceToLeft = 0;
float distanceToRight = screenWidth - 1;

<RelativeLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:padding="0dp">

    <ImageView
        android:id="@+id/imageView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:src="@drawable/your_image"
        android:layout_centerInParent="true"/>

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Your text"
        android:layout_below="@id/imageView"
        android:layout_centerInParent="true"/>

</RelativeLayout>