我需要在列表视图上实现 Longclick 和左右滑动并获取执行操作的列表项。这种方法看起来很有前途。问题: 1.ACTION_MOVE 在开始时只触发一次,因此差异非常小 2.如果我在开关中使用默认值,我会得到最后一个位置,但永远不会触发 onClick 或 onLongClick。这是我尝试过的.. 是否可以触发假动作以导致 itemClick/itemlongclick 执行。
public boolean onTouch(View v, MotionEvent event)
{
switch (event.getAction())
{
case MotionEvent.ACTION_DOWN:
downX = event.getX();
downY = event.getY();
mSwipeDetected = Action.NONE;
Log.i("MyTags","Down Event");
Log.i("MyTags",String.valueOf(downX)+","+String.valueOf(downY));
return false; // allow other events like Click to be processed
case MotionEvent.ACTION_MOVE:
upX = event.getX();
upY = event.getY();
Log.i("MyTags","Move Event");
Log.i("MyTags",String.valueOf(upX)+","+String.valueOf(upY));
moveEnabled=true;
return false;
case MotionEvent.ACTION_UP:
upX = event.getX();
upY = event.getY();
Log.i("MyTags","UP Event");
Log.i("MyTags",String.valueOf(upX)+","+String.valueOf(upY));
return false;
default:
upX = event.getX();
upY = event.getY();
Log.i("MyTags","Default Event");
Log.i("MyTags",String.valueOf(upX)+","+String.valueOf(upY));
if(moveEnabled)
{
diffX=downX-upX;
diffY=downY-upY;
abs_X=Math.abs(diffX);
abs_Y=Math.abs(diffY);
moveEnabled=false;
if((abs_X>abs_Y)&(abs_X>MINIMUM_X))
{
if(diffX>0)
{
mSwipeDetected=Action.LEFT;
Log.i("MyTags","Left Swipe");
event.setAction(MotionEvent.ACTION_UP);
return false;
}
else if(diffX<0)
{
mSwipeDetected=Action.RIGHT;
Log.i("MyTags","Right Swipe");
event.setAction(MotionEvent.ACTION_UP);
return false;
}
}
}
return false;
}
}