diff --git a/src/com/android/launcher3/AppsCustomizePagedView.java b/src/com/android/launcher3/AppsCustomizePagedView.java
index 558d8e9..a92bff1 100644
--- a/src/com/android/launcher3/AppsCustomizePagedView.java
+++ b/src/com/android/launcher3/AppsCustomizePagedView.java
@@ -366,8 +366,10 @@
                     // This code triggers requestLayout so must be posted outside of the
                     // layout pass.
                     public void run() {
-                        setDataIsReady();
-                        onDataReady(getMeasuredWidth(), getMeasuredHeight());
+                        if (isAttachedToWindow()) {
+                            setDataIsReady();
+                            onDataReady(getMeasuredWidth(), getMeasuredHeight());
+                        }
                     }
                 });
             }
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 83f813d..ffce116 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -3373,6 +3373,9 @@
             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 @@
             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)