Dev preview changes for incompatible apps.
- Disable drop targets when picking up a task that can’t be docked, and
show toast notifying user (for now)
- When a task is docked, update the task headers for non-dockable tasks
to indicate that they don’t support multi window. Update these
headers every time the multi window state changes.
Bug: 26774190
Change-Id: I020dcbac9b1230dba166eecaa12366986e684f9e
diff --git a/packages/SystemUI/src/com/android/systemui/recents/views/RecentsViewTouchHandler.java b/packages/SystemUI/src/com/android/systemui/recents/views/RecentsViewTouchHandler.java
index 016d937..079d7b9 100644
--- a/packages/SystemUI/src/com/android/systemui/recents/views/RecentsViewTouchHandler.java
+++ b/packages/SystemUI/src/com/android/systemui/recents/views/RecentsViewTouchHandler.java
@@ -21,7 +21,9 @@
import android.view.MotionEvent;
import android.view.ViewConfiguration;
import android.view.ViewDebug;
+import android.widget.Toast;
+import com.android.systemui.R;
import com.android.systemui.recents.Recents;
import com.android.systemui.recents.RecentsConfiguration;
import com.android.systemui.recents.events.EventBus;
@@ -148,11 +150,16 @@
mVisibleDockStates.clear();
if (!ssp.hasDockedTask() && mRv.getTaskStack().getTaskCount() > 1) {
- // Add the dock state drop targets (these take priority)
- TaskStack.DockState[] dockStates = getDockStatesForCurrentOrientation();
- for (TaskStack.DockState dockState : dockStates) {
- registerDropTargetForCurrentDrag(dockState);
- mVisibleDockStates.add(dockState);
+ if (!event.task.isDockable) {
+ Toast.makeText(mRv.getContext(), R.string.recents_drag_non_dockable_task_message,
+ Toast.LENGTH_SHORT).show();
+ } else {
+ // Add the dock state drop targets (these take priority)
+ TaskStack.DockState[] dockStates = getDockStatesForCurrentOrientation();
+ for (TaskStack.DockState dockState : dockStates) {
+ registerDropTargetForCurrentDrag(dockState);
+ mVisibleDockStates.add(dockState);
+ }
}
}