android.support.v4.widget
Class ListPopupWindowCompat

java.lang.Object
  android.support.v4.widget.ListPopupWindowCompat

public class ListPopupWindowCompat
extends java.lang.Object

Helper for accessing features in ListPopupWindow introduced after API level 4 in a backwards compatible fashion.

Method Summary

static android.view.View.OnTouchListener

createDragToOpenListener(java.lang.Object listPopupWindow, android.view.View src) On API android.os.Build.VERSION_CODES#KITKAT and higher, returns an View.OnTouchListener that can be added to the source view to implement drag-to-open behavior.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

createDragToOpenListener

public static android.view.View.OnTouchListener createDragToOpenListener(java.lang.Object listPopupWindow,
                                                                         android.view.View src)

On API android.os.Build.VERSION_CODES#KITKAT and higher, returns an View.OnTouchListener that can be added to the source view to implement drag-to-open behavior. Generally, the source view should be the same view that was passed to ListPopupWindow.setAnchorView(View).

When the listener is set on a view, touching that view and dragging outside of its bounds will open the popup window. Lifting will select the currently touched list item.

Example usage:

 ListPopupWindow myPopup = new ListPopupWindow(context);
 myPopup.setAnchor(myAnchor);
 OnTouchListener dragListener = myPopup.createDragToOpenListener(myAnchor);
 myAnchor.setOnTouchListener(dragListener);
 

Parameters:

listPopupWindow - the ListPopupWindow against which to invoke the method

src - the view on which the resulting listener will be set

Returns:

a touch listener that controls drag-to-open behavior, or null on unsupported APIs