我正在尝试使用setontouchlistener。例如,如果我按住一个imagebutton 5秒钟,我想做什么,就会收到警报...这是我的处理方式:
final ImageButton imageButton1 = (ImageButton) findViewById(R.id.imageButton1);
imageButton1.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
// do something
return false;
}
});
x秒后,如何使用setontouchlistener实现类似的功能?
工作解决方案:
imageButton1.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
if (event.getAction() == MotionEvent.ACTION_DOWN) {
mTouchDownTime = event.getEventTime();
Log.v("CustomDebug", "Message: " + mTouchDownTime);
}
if (event.getAction() == MotionEvent.ACTION_UP) {
long elapsedTime = event.getEventTime() - mTouchDownTime;
Log.v("CustomDebug", "Message: " + elapsedTime);
}
return false;
}
});
最佳答案
onTouch被调用两次,第一次是使用MotionEvent ACTION_DOWN,第二次是使用MotionEvent ACTION_UP
所以伪代码:
if Event == ACTION_DOWN
saveTime = time();
elseif Event == ACTION_UP and time()-savetime > 5
doStuff because the guy hold it for 5sec.