我有一个可扩展的列表视图。我正在实现在每个项目向左滑动时删除listItem。
我正在使用自定义适配器来填充列表视图项。
public class InsightsListAdapter extends BaseExpandableListAdapter {
@Override
public View getGroupView(final int groupPosition, boolean isExpanded,
View convertView, ViewGroup parent) {
View row = convertView;
row = inflater_.inflate(R.layout.insight_list_item, null);
final GestureDetector gdt = new GestureDetector(new GestureListener());
row.setOnTouchListener(new OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
swipedViewPosition_=groupPosition;
swipedView_=v;
gdt.onTouchEvent(event);
return true;
}
});
return row;
}
我正在使用如下所示的GestureListener
private static final int SWIPE_MIN_DISTANCE = 200;
private static final int SWIPE_THRESHOLD_VELOCITY = 200;
private class GestureListener extends SimpleOnGestureListener {
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
if(e1.getX() - e2.getX() > SWIPE_MIN_DISTANCE) {
System.out.println("Left swiped--------");
removeListItem();
return false; // Right to left
}
return false;
}
}
作为可扩展的ListView,我在Activity中实现了一些点击功能。
insightList_.setOnGroupClickListener(new OnGroupClickListener() {
@Override
public boolean onGroupClick(ExpandableListView parent, View v,
int groupPosition, long id) {
System.out.println("Group clicked---------");
showClear(true);
selectedItem_ = null;
return false;
}
});
现在OnFling被调用了,但是OnGroupClick却没有被调用。
当我从适配器的onTouch事件函数中返回false时,OnGroupClick会被调用,但OnFling()不会被调用。
要么Fling起作用,要么OnGroupClick起作用,但不能同时起作用。