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Commit 63f46e71 authored by John Reck's avatar John Reck
Browse files

expandGroup can now animate 

 Add a boolean to have expandGroup animate the same as
 performItemClick does

Change-Id: I652c6fa8f9a7b527572337b11900d653b5285352
parent 706804e2

api/current.txt

+1 −0
Original line number Diff line number Diff line
@@ -24010,6 +24010,7 @@ package android.widget { 
    ctor public ExpandableListView(android.content.Context, android.util.AttributeSet, int);

    method public boolean collapseGroup(int);

    method public boolean expandGroup(int);

    method public boolean expandGroup(int, boolean);

    method public android.widget.ExpandableListAdapter getExpandableListAdapter();

    method public long getExpandableListPosition(int);

    method public int getFlatListPosition(long);

core/java/android/widget/ExpandableListView.java

+25 −2
Original line number Diff line number Diff line
@@ -599,12 +599,35 @@ public class ExpandableListView extends ListView { 
     *         was already expanded, this will return false)

     */

    public boolean expandGroup(int groupPos) {

        boolean retValue = mConnector.expandGroup(groupPos);

       return expandGroup(groupPos, false);

    }



    /**

     * Expand a group in the grouped list view

     *

     * @param groupPos the group to be expanded

     * @param animate true if the expanding group should be animated in

     * @return True if the group was expanded, false otherwise (if the group

     *         was already expanded, this will return false)

     */

    public boolean expandGroup(int groupPos, boolean animate) {

        PositionMetadata pm = mConnector.getFlattenedPos(ExpandableListPosition.obtain(

                ExpandableListPosition.GROUP, groupPos, -1, -1));

        boolean retValue = mConnector.expandGroup(pm);



        if (mOnGroupExpandListener != null) {

            mOnGroupExpandListener.onGroupExpand(groupPos);

        }



        if (animate) {

            final int groupFlatPos = pm.position.flatListPos;



            final int shiftedGroupPosition = groupFlatPos + getHeaderViewsCount();

            smoothScrollToPosition(shiftedGroupPosition + mAdapter.getChildrenCount(groupPos),

                    shiftedGroupPosition);

        }

        pm.recycle();



        return retValue;

    }