commit 2f32ad29075bf666199cc49fe20014e00991d1bb
author Adam Cohen <adamcohen@google.com> Wed Nov 13 11:29:49 2013 +0000
committer Adam Cohen <adamcohen@google.com> Wed Nov 13 11:35:15 2013 +0000
tree 535f29831cc16880d509af14845dda9c5b141d54
parent 1960ea4a7102bd0fa03cad1ea1e3a91f8e1bd9cd

Add logging for NPE (issue 11627249)

Change-Id: I75352f9eb1249fa5cc46d05cd7c168a868c6f7b7

src/com/android/launcher3/Workspace.java

diff --git a/src/com/android/launcher3/Workspace.java b/src/com/android/launcher3/Workspace.java
index f36c815..6c346c4 100644
--- a/src/com/android/launcher3/Workspace.java
+++ b/src/com/android/launcher3/Workspace.java
@@ -2536,6 +2536,13 @@
             icon.clearPressedOrFocusedBackground();
         }
 
+        if (child.getTag() == null || !(child.getTag() instanceof ItemInfo)) {
+            String msg = "Drag started with a view that has no tag set. This "
+                    + "will cause a crash (issue 11627249) down the line. "
+                    + "View: " + child + "  tag: " + child.getTag();
+            throw new IllegalStateException(msg);
+        }
+
         mDragController.startDrag(b, dragLayerX, dragLayerY, source, child.getTag(),
                 DragController.DRAG_ACTION_MOVE, dragVisualizeOffset, dragRect, scale);