Android获取点击屏幕的位置坐标

<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"
  tools:context="com.example.com.TouchTest"  

  <LinearLayout
    android:id="@+id/ll_touch"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"  

    <TextView
      android:id="@+id/touch_show_start"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:text="@string/hello_world" / 

    <TextView
      android:id="@+id/touch_show"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:text="@string/hello_world" / 
  </LinearLayout 

</RelativeLayout 

public class TouchTest extends Activity implements OnTouchListener {

  private TextView tvTouchShowStart;
  private TextView tvTouchShow;
  private LinearLayout llTouch;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_touch_test);
    init();
  }

  private void init() {
    tvTouchShowStart = (TextView) findViewById(R.id.touch_show_start);
    tvTouchShow = (TextView) findViewById(R.id.touch_show);
    llTouch = (LinearLayout) findViewById(R.id.ll_touch);
    llTouch.setOnTouchListener(this);
  }

  @Override
  public boolean onTouch(View v, MotionEvent event) {
    switch (event.getAction()) {
    /**
    * 点击的开始位置
    */
    case MotionEvent.ACTION_DOWN:
      tvTouchShowStart.setText("起始位置：(" + event.getX() + "," + event.getY());
      break;
    /**
    * 触屏实时位置
    */
    case MotionEvent.ACTION_MOVE:
      tvTouchShow.setText("实时位置：(" + event.getX() + "," + event.getY());
      break;
    /**
    * 离开屏幕的位置
    */
    case MotionEvent.ACTION_UP:
      tvTouchShow.setText("结束位置：(" + event.getX() + "," + event.getY());
      break;
    default:
      break;
    }
    /**
    * 注意返回值
    * true：view继续响应Touch操作；
    * false：view不再响应Touch操作，故此处若为false，只能显示起始位置，不能显示实时位置和结束位置
    */
    return true;
  }

}