侦听器pressing和释放按钮 [英] listener for pressing and releasing a button

问题描述

我怎么能听，当按钮是pssed并发布了$ P $？

How can I listen for when a Button is pressed and released?

推荐答案

您可以使用 onTouchListener ：

view.setOnTouchListener(new View.OnTouchListener() {        
    @Override
    public boolean onTouch(View v, MotionEvent event) {
        switch(event.getAction()) {
            case MotionEvent.ACTION_DOWN:
                // PRESSED
                return true; // if you want to handle the touch event
            case MotionEvent.ACTION_UP:
                // RELEASED
                return true; // if you want to handle the touch event
        }
        return false;
    }
});

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