Fix for NPE in showAllAppsCling

Added check for getTabHost()

E/AndroidRuntime( 1880): FATAL EXCEPTION: main
E/AndroidRuntime( 1880): java.lang.NullPointerException
E/AndroidRuntime( 1880): 	at com.cyanogenmod.trebuchet.AppsCustomizePagedView.showAllAppsCling(AppsCustomizePagedView.java:575)
E/AndroidRuntime( 1880): 	at com.cyanogenmod.trebuchet.AppsCustomizeTabHost.onLauncherTransitionEnd(AppsCustomizeTabHost.java:455)
E/AndroidRuntime( 1880): 	at com.cyanogenmod.trebuchet.Launcher.dispatchOnLauncherTransitionEnd(Launcher.java:2401)
E/AndroidRuntime( 1880): 	at com.cyanogenmod.trebuchet.Launcher.access$2100(Launcher.java:120)
E/AndroidRuntime( 1880): 	at com.cyanogenmod.trebuchet.Launcher$14.onAnimationEnd(Launcher.java:2519)
E/AndroidRuntime( 1880): 	at android.animation.AnimatorSet$AnimatorSetListener.onAnimationEnd(AnimatorSet.java:765)
E/AndroidRuntime( 1880): 	at com.cyanogenmod.trebuchet.LauncherViewPropertyAnimator.onAnimationEnd(LauncherViewPropertyAnimator.java:111)

Change-Id: I4aa0b4bacc03fb7aa87029d3e9406570bc82830f

1 files changed, 19 insertions, 16 deletions

diff --git a/src/com/cyanogenmod/trebuchet/AppsCustomizePagedView.java b/src/com/cyanogenmod/trebuchet/AppsCustomizePagedView.java
index 364b3b30e..86dcce8a5 100644
--- a/src/com/cyanogenmod/trebuchet/AppsCustomizePagedView.java
+++ b/src/com/cyanogenmod/trebuchet/AppsCustomizePagedView.java
@@ -572,22 +572,25 @@ public class AppsCustomizePagedView extends PagedViewWithDraggableItems implemen
     }
 
     void showAllAppsCling() {
-        Cling allAppsCling = (Cling) getTabHost().findViewById(R.id.all_apps_cling);
-        if (!mHasShownAllAppsCling && isDataReady()) {
-            mHasShownAllAppsCling = true;
-            // Calculate the position for the cling punch through
-            int[] offset = new int[2];
-            int[] pos = mWidgetSpacingLayout.estimateCellPosition(mClingFocusedX, mClingFocusedY);
-            mLauncher.getDragLayer().getLocationInDragLayer(this, offset);
-            // PagedViews are centered horizontally but top aligned
-            pos[0] += (getMeasuredWidth() - mWidgetSpacingLayout.getMeasuredWidth()) / 2 +
-                    offset[0];
-            pos[1] += offset[1];
-            mLauncher.showFirstRunAllAppsCling(pos);
-        } else if (!mHasShownAllAppsSortCling && isDataReady() &&
-                allAppsCling != null && allAppsCling.isDismissed()) {
-            mHasShownAllAppsSortCling = true;
-            mLauncher.showFirstRunAllAppsSortCling();
+        AppsCustomizeTabHost tabHost = getTabHost();
+        if (tabHost != null) {
+            Cling allAppsCling = (Cling) tabHost.findViewById(R.id.all_apps_cling);
+            if (!mHasShownAllAppsCling && isDataReady()) {
+                mHasShownAllAppsCling = true;
+                // Calculate the position for the cling punch through
+                int[] offset = new int[2];
+                int[] pos = mWidgetSpacingLayout.estimateCellPosition(mClingFocusedX, mClingFocusedY);
+                mLauncher.getDragLayer().getLocationInDragLayer(this, offset);
+                // PagedViews are centered horizontally but top aligned
+                pos[0] += (getMeasuredWidth() - mWidgetSpacingLayout.getMeasuredWidth()) / 2 +
+                        offset[0];
+                pos[1] += offset[1];
+                mLauncher.showFirstRunAllAppsCling(pos);
+            } else if (!mHasShownAllAppsSortCling && isDataReady() &&
+                    allAppsCling != null && allAppsCling.isDismissed()) {
+                mHasShownAllAppsSortCling = true;
+                mLauncher.showFirstRunAllAppsSortCling();
+            }
         }
     }