我在识别可扩展列表视图上的onGroup点击时遇到问题。我正在为组视图使用自定义滑动侦听器以进行滑动。现在我想要的是在按下它们的同时扩展组,似乎我找不到在组视图上注册OnTouch和onGroupClick的正确方法。我在不刷卡时调用假,因此可以识别其他手势(例如正常点击和长按),但我的群组没有响应点击,因此没有扩展。
现在我的Swipe监听器工作正常但OnGroupClick没有被调用而且没有扩展。当我从getGroupView()方法中删除我的OnSwipeListener时,实际的扩展正常工作。
我在滑动侦听器上的自定义:
public class OnSwipeListener implements View.OnTouchListener
{
private final GestureDetector gestureDetector = new GestureDetector(new GestureListener());
public boolean onTouch(final View v, final MotionEvent event)
{
return gestureDetector.onTouchEvent(event);
}
private final class GestureListener extends GestureDetector.SimpleOnGestureListener
{
private static final int SWIPE_THRESHOLD = 70;
private static final int SWIPE_VELOCITY_THRESHOLD = 70;
@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)
{
result = onSwipeRight();
}
else
{
result = onSwipeLeft();
}
}
}
else
{
if (Math.abs(diffY) > SWIPE_THRESHOLD && Math.abs(velocityY) > SWIPE_VELOCITY_THRESHOLD)
{
if (diffY > 0)
{
result = onSwipeBottom();
}
else
{
result = onSwipeTop();
}
}
}
}
catch (Exception exception)
{
exception.printStackTrace();
}
return result;
}
}
public boolean onSwipeRight()
{
return false;
}
public boolean onSwipeLeft()
{
return false;
}
public boolean onSwipeTop()
{
return false;
}
public boolean onSwipeBottom()
{
return false;
}
}
我的可扩展列表视图及其在组点击侦听器设置:
expandable_list_view = (ExpandableListView) findViewById(R.id.activity_profile_expandable_listview);
setGroupParents(); setChildData();
ExpandableListAdapter adapter = new ExpandableListAdapter(this, parentItems, childItems);
expandable_list_view.setAdapter(adapter);
expandable_list_view.setOnGroupClickListener(new ExpandableListView.OnGroupClickListener()
{
@Override
public boolean onGroupClick(ExpandableListView parent, View v, int groupPosition, long id)
{
parent.smoothScrollToPosition(groupPosition);
if (parent.isGroupExpanded(groupPosition))
{
parent.collapseGroup(groupPosition);
} else {
parent.expandGroup(groupPosition);
}
return false;
}
});
最后从我的自定义适配器获取getGroupView以获取可扩展列表视图:
@Override
public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent)
{
if (convertView == null)
{
convertView = inflater.inflate(R.layout.layout_activity_expandableitem, null);
}
final View converted_view = convertView;
final LinearLayout front_view = (LinearLayout) converted_view.findViewById(R.id.layout_activity_expandableitem_front_view); front_view.setTag(Position.CENTER);
final LinearLayout behind_view = (LinearLayout) converted_view.findViewById(R.id.layout_activity_expandableitem_behind_view);
final View confirmation_view = inflater.inflate(R.layout.slide_profile, null); confirmation_view.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT));
final View cancel_view = inflater.inflate(R.layout.slide_cancel, null); cancel_view.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT));
// Set onTouchListener
front_view.setOnClickListener(null);
front_view.setOnTouchListener(new OnSwipeListener()
{
@Override
public boolean onSwipeRight()
{
Position position = (Position) front_view.getTag();
if (position == Position.CENTER)
{
behind_view.removeAllViews();
behind_view.addView(confirmation_view);
showConfirmation(front_view);
front_view.setTag(Position.RIGHT);
}
else if (position == Position.LEFT)
{
//behind_view.removeAllViews();
showCenter(front_view, Position.RIGHT);
front_view.setTag(Position.CENTER);
}
return true;
}
@Override
public boolean onSwipeLeft()
{
Position position = (Position) front_view.getTag();
if (position == Position.CENTER)
{
behind_view.removeAllViews();
behind_view.addView(cancel_view);
showInfo(front_view);
front_view.setTag(Position.LEFT);
}
else if (position == Position.RIGHT)
{
//behind_view.removeAllViews();
showCenter(front_view, Position.LEFT);
front_view.setTag(Position.CENTER);
}
return true;
}
});
// Return the view
return converted_view;
感谢您对如何解决此问题的想法。
答案 0 :(得分:2)
OnGroupClick
时,它会设置为整体 listview
(每行不)listview
的实施将“弄清楚”触摸listView
listview
之前并且将处理(消耗)触摸事件,而触摸事件又不会到达列表视图(这就是为什么你在单独时让它们工作的原因)。 ListView
并实施onInterceptTouchEvent()
。这样,您的listview
将始终能够“看到”触摸事件并对其进行操作。 (请注意,您可能会遇到同时检测到滑动和点击的情况。)ListView
OnTouch
将负责确定哪一行有互动,识别滑动手势(通过您的听众)并点击事件并决定哪些获得先例。 答案 1 :(得分:0)
您可以尝试我自己实施的following解决方案,并确信它有效。我使用了onClickListener
而不是SwipeListener
。希望它可以帮助您解决问题。