1
我有一個listview,我個性化,並且我加入了setOnItemLongClickListener()
,這很好用。然後我決定實施一個手勢listView.setOnTouchListener(new OnSwipeTouchListener())
,這也很好。我從其他帖子複製了OnSwipetouchListener
類。Android:如何結合使用Longpress在listView上的項目中刷卡手勢
問題是,當我添加滑動監聽器的longPress不再工作。我想這是因爲滑動監聽器爲自己採取了longpress操作,並且不允許longPress執行任何操作。
我想做什麼:
揮擊聽衆得到下面2秒一切,在那之後一切都將長按。所以我仍然可以通過輕掃手勢更改列表視圖內容,並且我還可以爲每個listitem創建函數。
我的代碼:
public class OnSwipeTouchListener implements OnTouchListener {
private final GestureDetector gestureDetector = new GestureDetector(new GestureListener());
public boolean onTouch(final View v, final MotionEvent event) {
//super.onTouch(v, event);
return gestureDetector.onTouchEvent(event);
}
private final class GestureListener extends SimpleOnGestureListener {
private static final int SWIPE_THRESHOLD = 100;
private static final int SWIPE_VELOCITY_THRESHOLD = 100;
@Override
public boolean onDown(MotionEvent e) {
return true;
}
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
boolean result = false;
try {
float diffY = e2.getY() - e1.getY();
float diffX = e2.getX() - e1.getX();
if (Math.abs(diffX) > Math.abs(diffY)) {
if (Math.abs(diffX) > SWIPE_THRESHOLD && Math.abs(velocityX) > SWIPE_VELOCITY_THRESHOLD) {
if (diffX > 0) {
onSwipeRight();
} else {
onSwipeLeft();
}
}
} else {
if (Math.abs(diffY) > SWIPE_THRESHOLD && Math.abs(velocityY) > SWIPE_VELOCITY_THRESHOLD) {
if (diffY > 0) {
onSwipeBottom();
} else {
onSwipeTop();
}
}
}
} catch (Exception exception) {
exception.printStackTrace();
}
return result;
}
...methods...
}