[英]Android: Is it possible to handle a click while another finger is already touching the screen?
[英]Android - Do something while touching the screen
我想要一个扩展的SurficeView类,当用户触摸屏幕时(例如onKeyDown),它可以执行某些操作。
像这样:
@Override
public boolean onTouchEvent(MotionEvent event) {
Log.e("Touching", "Touching the Screen");
return true;
}
当用户触摸屏幕时,我希望向LogCat发送垃圾邮件(只是进行测试),直到我没有触摸它,它只显示两次消息:当我触摸和释放时。
这是OnTouch监听器的不同行为
setOnTouchListener(new OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
Log.d(TAG, "mode=DRAG");
switch (event.getAction() & MotionEvent.ACTION_MASK) {
case MotionEvent.ACTION_DOWN:
Log.i("Tag", "1");
break;
case MotionEvent.ACTION_POINTER_DOWN:
Log.i("Tag", "2");
break;// return
case MotionEvent.ACTION_UP:
Log.i("Tag", "3");
case MotionEvent.ACTION_POINTER_UP:
Log.i("Tag", "4");
break;
case MotionEvent.ACTION_MOVE:
Log.i("Tag", "5");
break;
}
return true;
}
});
写入以下操作之一,例如:
@Override
public boolean onTouchEvent(MotionEvent event) {
if(event.getAction==MotionEvent.ACTION_DOWN){
Log.e("Touching", "Touching the Screen");
}
else if(event.getAction==MotionEvent.ACTION_UP){
Log.e("Touching up", "Touching the Screen up");}
return true;
}
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