Announcing the final action when the drag-drop completes

Bug:31926812
Change-Id: Id0566cc7dc15732981320807a02fb9cae8a885e6

src/com/android/launcher3/Workspace.java

@@ -2760,6 +2760,9 @@ public class Workspace extends PagedView
             }
             parent.onDropChild(cell);
         }
+        if (d.stateAnnouncer != null) {
+            d.stateAnnouncer.completeAction(R.string.item_moved);
+        }
     }
 
     /**

src/com/android/launcher3/accessibility/DragViewStateAnnouncer.java

@@ -21,6 +21,8 @@ import android.view.View;
 import android.view.accessibility.AccessibilityEvent;
 import android.view.accessibility.AccessibilityManager;
 
+import com.android.launcher3.Launcher;
+
 /**
  * Periodically sends accessibility events to announce ongoing state changed. Based on the
  * implementation in ProgressBar.
@@ -50,6 +52,12 @@ public class DragViewStateAnnouncer implements Runnable {
         mTargetView.sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_SELECTED);
     }
 
+    public void completeAction(int announceResId) {
+        cancel();
+        Launcher launcher = Launcher.getLauncher(mTargetView.getContext());
+        launcher.getDragLayer().announceForAccessibility(launcher.getText(announceResId));
+    }
+
     public static DragViewStateAnnouncer createFor(View v) {
         if (((AccessibilityManager) v.getContext().getSystemService(Context.ACCESSIBILITY_SERVICE))
                 .isEnabled()) {

src/com/android/launcher3/folder/Folder.java

@@ -1346,6 +1346,10 @@ public class Folder extends LinearLayout implements DragSource, View.OnClickList
             // The animation has already been shown while opening the folder.
             mInfo.setOption(FolderInfo.FLAG_MULTI_PAGE_ANIMATION, true, mLauncher);
         }
+
+        if (d.stateAnnouncer != null) {
+            d.stateAnnouncer.completeAction(R.string.item_moved);
+        }
     }
 
     // This is used so the item doesn't immediately appear in the folder when added. In one case