Potential fix for a couple bugs

issue 17371274
issue 17368590

Change-Id: I717f9c37613efd9d61e401540ca82aff77058022

src/com/android/launcher3/AppsCustomizePagedView.java

@@ -366,8 +366,10 @@ public class AppsCustomizePagedView extends PagedViewWithDraggableItems implemen
                     // This code triggers requestLayout so must be posted outside of the
                     // layout pass.
                     public void run() {
-                        setDataIsReady();
+                        if (isAttachedToWindow()) {
-                        onDataReady(getMeasuredWidth(), getMeasuredHeight());
+                            setDataIsReady();
+                            onDataReady(getMeasuredWidth(), getMeasuredHeight());
+                        }
                     }
                 });
             }

src/com/android/launcher3/Launcher.java

@@ -3373,6 +3373,9 @@ public class Launcher extends Activity
             final AnimatorSet stateAnimation = mStateAnimation;
             final Runnable startAnimRunnable = new Runnable() {
                 public void run() {
+                    if (!toView.isAttachedToWindow()) {
+                        return;
+                    }
                     // Check that mStateAnimation hasn't changed while
                     // we waited for a layout/draw pass
                     if (mStateAnimation != stateAnimation)
@@ -3618,6 +3621,9 @@ public class Launcher extends Activity
             final AnimatorSet stateAnimation = mStateAnimation;
             final Runnable startAnimRunnable = new Runnable() {
                 public void run() {
+                    if (!fromView.isAttachedToWindow()) {
+                        return;
+                    }
                     // Check that mStateAnimation hasn't changed while
                     // we waited for a layout/draw pass
                     if (mStateAnimation != stateAnimation)