Android自定義View實(shí)現(xiàn)隨手勢(shì)滑動(dòng)控件

public class MyView extends Button{
//記錄上次滑動(dòng)后的坐標(biāo)值
private int lastX;
private int lastY;

public MyView(Context context) {
  super(context);
  // TODO Auto-generated constructor stub
}
public MyView(Context context, AttributeSet attrs){

  super(context, attrs);
}

@Override
public boolean onTouchEvent(MotionEvent event) {
  // 獲取view相對(duì)于手機(jī)屏幕的xy值
  int x=(int) event.getRawX();
  int y=(int) event.getRawY();
  switch (event.getAction()) {
    case MotionEvent.ACTION_DOWN:

      break;
    case MotionEvent.ACTION_MOVE:
      int deltaX=x-lastX;
      int deltaY=y-lastY;
      int translationX = (int) (ViewHelper.getTranslationX(this) + deltaX);
      int translationY = (int) (ViewHelper.getTranslationY(this) + deltaY);
      ViewHelper.setTranslationX(this,translationX);
      ViewHelper.setTranslationY(this,translationY);

      break;
    case MotionEvent.ACTION_UP:
      break;
    default:
      break;
  }
  lastX = x;
  lastY = y;
  return true;
}

<?xml version="1.0" encoding="utf-8"?>
<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"
>

 <com.example.administrator.slide.MyView
   android:id="@+id/myview"
   android:layout_width="wrap_content"
   android:layout_height="wrap_content"
   android:text="我可以滑動(dòng)"/>

</RelativeLayout>