如何检测安卓中按钮的时间按下持续时间

Question

我想通过onTouch方法使用setOnTouchListener来检测按钮的按持续时间

我该怎么做？

Answer 1

您可以使用onTouchListener

long FirstTouchTime ;
long duration ; 
public boolean onTouchEvent(MotionEvent event) {
    if (event.getAction() == MotionEvent.ACTION_DOWN) 
        FirstTouchTime = System.currentTimeMillis();    
    else if (event.getAction() == MotionEvent.ACTION_UP) {
        duration = System.currentTimeMillis(); - FirstTouchTime ;
        //duration value in millisecond 
    }
}

Answer 2

也许是这样的：

long mLastClickTime;
findViewById(R.id.button).setOnTouchListener(new OnTouchListener() {
      @Override
      public void onTouch(View v, MotionEvent event) {
         if (event.getAction() == MotionEvent.ACTION_DOWN) 
            mLastClickTime = SystemClock.elapsedRealtime();
         else if (event.getAction() == MotionEvent.ACTION_UP) {
            long duration = SystemClock.elapsedRealtime() - mLastClickTime;
            // using threshold of 1000 ms
            if (duration > 1000) {
               // do your magic here
            }
         }
      }    
});