Android仿优酷视频的悬浮窗播放效果

/**
   * 浮窗移动/点击监听
   */
  private class FloatViewMoveListener implements View.OnTouchListener {

    //开始触控的坐标，移动时的坐标（相对于屏幕左上角的坐标）
    private int mTouchStartX;
    private int mTouchStartY;
    //开始时的坐标和结束时的坐标（相对于自身控件的坐标）
    private int mStartX, mStartY;
    //判断悬浮窗口是否移动，这里做个标记，防止移动后松手触发了点击事件
    private boolean isMove;

    @Override
    public boolean onTouch(View view, MotionEvent motionEvent) {
      int action = motionEvent.getAction();
      int x = (int) motionEvent.getX();
      int y = (int) motionEvent.getY();
      switch (action) {
        case MotionEvent.ACTION_DOWN:
          isMove = false;
          mTouchStartX = (int) motionEvent.getRawX();
          mTouchStartY = (int) motionEvent.getRawY();
          mStartX = x;
          mStartY = y;
          break;
        case MotionEvent.ACTION_MOVE:
          int mTouchCurrentX = (int) motionEvent.getRawX();
          int mTouchCurrentY = (int) motionEvent.getRawY();
          mFloatParams.x += mTouchCurrentX - mTouchStartX;
          mFloatParams.y += mTouchCurrentY - mTouchStartY;
          mWindowManager.updateViewLayout(mShowView, mFloatParams);
          mTouchStartX = mTouchCurrentX;
          mTouchStartY = mTouchCurrentY;
          float deltaX = x - mStartX;
          float deltaY = y - mStartY;
          if (Math.abs(deltaX) >= 5 || Math.abs(deltaY) >= 5) {
            isMove = true;
          }
          break;
        case MotionEvent.ACTION_UP:
          break;
        default:
          break;
      }
      //如果是移动事件不触发OnClick事件，防止移动的时候一放手形成点击事件
      return isMove;
    }
  }

public void dismiss() {
    if (mWindowManager != null && mShowView != null) {
      videoLayout.removeAllViews();
      if (mShowView.getParent() != null){
        mWindowManager.removeView(mShowView);
      }
    }
  }

 public videoFloatingWindow(Context context){
    super(context);
    this.activity = context;
  }

 private void startFloatingWindow(){
    if (!Settings.canDrawOverlays(this)) {
      Toast.makeText(this, "当前无权限，请授权", Toast.LENGTH_SHORT);
      startActivityForResult(new Intent(Settings.ACTION_MANAGE_OVERLAY_PERMISSION, Uri.parse("package:" + getPackageName())), 2);
    } else {
      video_frame.removeView(vw_live);
      videoFloatingWindow.getInstance(this).showFloatingWindowView(vw_live);
      hasBind = true;
      moveTaskToBack(true);
    }
  }

  Intent intent = new Intent(activity, activity.getClass());
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        activity.startActivity(intent);

 @Override
  protected void onNewIntent(Intent intent) {
    super.onNewIntent(intent);
    Log.d("RemoteView", "重新显示了");
    //不显示悬浮框
    if (hasBind){
      videoFloatingWindow.getInstance(this).dismiss();
      video_frame.removeAllViews();
      if (vw_live != null){
        video_frame.addView(vw_live);
      }
      hasBind = false;
    }
  }