Android自定义View实现随手势滑动控件

publicclassMyViewextendsButton{

//记录上次滑动后的坐标值

privateintlastX;

privateintlastY;

publicMyView(Context context) {

  super(context);

  // TODO Auto-generated constructor stub

}

publicMyView(Context context, AttributeSet attrs){

  super(context, attrs);

}

@Override

publicbooleanonTouchEvent(MotionEvent event) {

  // 获取view相对于手机屏幕的xy值

  intx=(int) event.getRawX();

  inty=(int) event.getRawY();

  switch(event.getAction()) {

    caseMotionEvent.ACTION_DOWN:

      break;

    caseMotionEvent.ACTION_MOVE:

      intdeltaX=x-lastX;

      intdeltaY=y-lastY;

      inttranslationX = (int) (ViewHelper.getTranslationX(this) + deltaX);

      inttranslationY = (int) (ViewHelper.getTranslationY(this) + deltaY);

      ViewHelper.setTranslationX(this,translationX);

      ViewHelper.setTranslationY(this,translationY);

      break;

    caseMotionEvent.ACTION_UP:

      break;

    default:

      break;

  }

  lastX = x;

  lastY = y;

  returntrue;

}

 xmlns:tools="http://schemas.android.com/tools"

 android:layout_width="match_parent"

 android:layout_height="match_parent"

>

   android:id="@+id/myview"

   android:layout_width="wrap_content"

   android:layout_height="wrap_content"

   android:text="我可以滑动"/>