簡單的答案是
boolean onDoubleTap (MotionEvent e) -
當雙擊發生通知。
當雙擊發生 和param motionEvent
是:l,下來第一次輕觸的運動事件時,可以通知作業人員。
boolean onDoubleTapEvent (MotionEvent e)` -
當雙擊手勢內的事件發生
您可以在雙擊手勢發生內通知作業人員的事件,包括已通知down
,move
和up
事件和和param motionEvent
是爲運動事件
所以用doubleTapEvent
你可以得到額外的選項卡手勢以及水龍頭
看看 - >https://stackoverflow.com/a/19629851/5188159這種力量有助於您的觸摸手勢
進一步嘗試瞭解這裏發生了什麼這個例子
//initialize the Gesture Detector
gd = new GestureDetector(this);
//set the on Double tap listener
gd.setOnDoubleTapListener(new OnDoubleTapListener()
{
@Override
public boolean onDoubleTap(MotionEvent e)
{
//set text color to green
tvTap.setTextColor(0xff00ff00);
//print a confirmation message
tvTap.setText("The screen has been double tapped.");
return false;
}
@Override
public boolean onDoubleTapEvent(MotionEvent e)
{
//if the second tap hadn't been released and it's being moved
if(e.getAction() == MotionEvent.ACTION_MOVE)
{
//set text to blue
tvTapEvent.setTextColor(0xff0000ff);
//print a confirmation message and the position
tvTapEvent.setText("Double tap with movement. Position:\n"
+ "X:" + Float.toString(e.getRawX()) +
"\nY: " + Float.toString(e.getRawY()));
}
else if(e.getAction() == MotionEvent.ACTION_UP)//user released the screen
{
tvTapEvent.setText("");
}
return false;
}
@Override
public boolean onSingleTapConfirmed(MotionEvent e)
{
//set text color to red
tvTap.setTextColor(0xffff0000);
//print a confirmation message and the tap position
tvTap.setText("Double tap failed. Please try again.");
return false;
}
});
我編輯了一個清晰的思路,答案:)希望我會幫你的 –