Merge "Add accessibility expand/collapse action to node info" (dabec9ef) · Commits · e / os / android_frameworks_base

core/java/android/widget/ExpandableListView.java

+19 −0

Original line number	Diff line number	Diff line
		@@ -31,6 +31,7 @@ import android.view.ContextMenu;
		import android.view.ContextMenu.ContextMenuInfo;
		import android.view.SoundEffectConstants;
		import android.view.View;
		import android.view.accessibility.AccessibilityNodeInfo;
		import android.widget.ExpandableListConnector.PositionMetadata;

		import com.android.internal.R;
		@@ -1144,6 +1145,24 @@ public class ExpandableListView extends ListView {
		return new ExpandableListContextMenuInfo(view, packedPosition, id);
		}

		/** @hide */
		@Override
		public void onInitializeAccessibilityNodeInfoForItem(
		View view, int position, AccessibilityNodeInfo info) {
		super.onInitializeAccessibilityNodeInfoForItem(view, position, info);

		final PositionMetadata metadata = mConnector.getUnflattenedPos(position);
		if (metadata.position.type == ExpandableListPosition.GROUP) {
		if (isGroupExpanded(metadata.position.groupPos)) {
		info.addAction(AccessibilityNodeInfo.AccessibilityAction.ACTION_COLLAPSE);
		} else {
		info.addAction(AccessibilityNodeInfo.AccessibilityAction.ACTION_EXPAND);
		}
		}

		metadata.recycle();
		}

		/**
		* Gets the ID of the group or child at the given <code>position</code>.
		* This is useful since there is no ListAdapter ID -> ExpandableListAdapter