diff --git a/core/java/android/app/ActivityThread.java b/core/java/android/app/ActivityThread.java
index 2a28b76..e6960b3 100644
--- a/core/java/android/app/ActivityThread.java
+++ b/core/java/android/app/ActivityThread.java
@@ -3865,7 +3865,7 @@
         }
     }
 
-    final void freeTextLayoutCachesIfNeeded(int configDiff) {
+    static void freeTextLayoutCachesIfNeeded(int configDiff) {
         if (configDiff != 0) {
             // Ask text layout engine to free its caches if there is a locale change
             boolean hasLocaleConfigChange = ((configDiff & ActivityInfo.CONFIG_LOCALE) != 0);
diff --git a/core/java/android/gesture/GestureOverlayView.java b/core/java/android/gesture/GestureOverlayView.java
index b6c260f..2d47f28 100644
--- a/core/java/android/gesture/GestureOverlayView.java
+++ b/core/java/android/gesture/GestureOverlayView.java
@@ -486,6 +486,7 @@
 
     @Override
     protected void onDetachedFromWindow() {
+        super.onDetachedFromWindow();
         cancelClearAnimation();
     }
 
diff --git a/core/java/android/view/DisplayList.java b/core/java/android/view/DisplayList.java
index 2d24c1e..43fd628 100644
--- a/core/java/android/view/DisplayList.java
+++ b/core/java/android/view/DisplayList.java
@@ -208,9 +208,22 @@
      * {@link #isValid()} will return false.
      *
      * @see #isValid()
+     * @see #reset()
      */
     public abstract void clear();
 
+
+    /**
+     * Reset native resources. This is called when cleaning up the state of display lists
+     * during destruction of hardware resources, to ensure that we do not hold onto
+     * obsolete resources after related resources are gone.
+     *
+     * @see #clear()
+     *
+     * @hide
+     */
+    public abstract void reset();
+
     /**
      * Sets the dirty flag. When a display list is dirty, {@link #clear()} should
      * be invoked whenever possible.
@@ -670,13 +683,4 @@
      * @see View#offsetTopAndBottom(int)
      */
     public abstract void offsetTopAndBottom(float offset);
-
-    /**
-     * Reset native resources. This is called when cleaning up the state of display lists
-     * during destruction of hardware resources, to ensure that we do not hold onto
-     * obsolete resources after related resources are gone.
-     *
-     * @hide
-     */
-    public abstract void reset();
 }
diff --git a/core/java/android/view/GLES20DisplayList.java b/core/java/android/view/GLES20DisplayList.java
index 8b2a2ef..c652bac 100644
--- a/core/java/android/view/GLES20DisplayList.java
+++ b/core/java/android/view/GLES20DisplayList.java
@@ -94,6 +94,7 @@
         if (hasNativeDisplayList()) {
             nReset(mFinalizer.mNativeDisplayList);
         }
+        clear();
     }
 
     @Override
diff --git a/core/java/android/view/GLES20Layer.java b/core/java/android/view/GLES20Layer.java
index 7ee628b..0e3311c 100644
--- a/core/java/android/view/GLES20Layer.java
+++ b/core/java/android/view/GLES20Layer.java
@@ -59,6 +59,9 @@
 
     @Override
     public void destroy() {
+        if (mDisplayList != null) {
+            mDisplayList.reset();
+        }
         if (mFinalizer != null) {
             mFinalizer.destroy();
             mFinalizer = null;
diff --git a/core/java/android/view/View.java b/core/java/android/view/View.java
index 747e8ea..4a80b93 100644
--- a/core/java/android/view/View.java
+++ b/core/java/android/view/View.java
@@ -12144,7 +12144,6 @@
         removeSendViewScrolledAccessibilityEventCallback();
 
         destroyDrawingCache();
-
         destroyLayer(false);
 
         cleanupDraw();
@@ -12162,7 +12161,7 @@
             mAttachInfo.mViewRootImpl.cancelInvalidate(this);
         } else {
             // Should never happen
-            clearDisplayList();
+            resetDisplayList();
         }
     }
 
@@ -12773,9 +12772,6 @@
                 mHardwareLayer.destroy();
                 mHardwareLayer = null;
 
-                if (mDisplayList != null) {
-                    mDisplayList.reset();
-                }
                 invalidate(true);
                 invalidateParentCaches();
             }
@@ -12796,7 +12792,7 @@
      * @hide
      */
     protected void destroyHardwareResources() {
-        clearDisplayList();
+        resetDisplayList();
         destroyLayer(true);
     }
 
@@ -13044,6 +13040,12 @@
         }
     }
 
+    private void resetDisplayList() {
+        if (mDisplayList != null) {
+            mDisplayList.reset();
+        }
+    }
+
     /**
      * <p>Calling this method is equivalent to calling <code>getDrawingCache(false)</code>.</p>
      *
diff --git a/core/java/android/view/ViewRootImpl.java b/core/java/android/view/ViewRootImpl.java
index e90705c..f711e7a 100644
--- a/core/java/android/view/ViewRootImpl.java
+++ b/core/java/android/view/ViewRootImpl.java
@@ -614,15 +614,7 @@
     }
 
     void destroyHardwareResources() {
-        if (mAttachInfo.mHardwareRenderer != null) {
-            if (mAttachInfo.mHardwareRenderer.isEnabled()) {
-                mAttachInfo.mHardwareRenderer.destroyLayers(mView);
-            }
-            mAttachInfo.mHardwareRenderer.destroy(false);
-        }
-    }
-
-    void terminateHardwareResources() {
+        invalidateDisplayLists();
         if (mAttachInfo.mHardwareRenderer != null) {
             mAttachInfo.mHardwareRenderer.destroyHardwareResources(mView);
             mAttachInfo.mHardwareRenderer.destroy(false);
@@ -636,6 +628,7 @@
                 HardwareRenderer.trimMemory(ComponentCallbacks2.TRIM_MEMORY_MODERATE);
             }
         } else {
+            invalidateDisplayLists();
             if (mAttachInfo.mHardwareRenderer != null &&
                     mAttachInfo.mHardwareRenderer.isEnabled()) {
                 mAttachInfo.mHardwareRenderer.destroyLayers(mView);
@@ -2554,7 +2547,7 @@
         for (int i = 0; i < count; i++) {
             final DisplayList displayList = displayLists.get(i);
             if (displayList.isDirty()) {
-                displayList.clear();
+                displayList.reset();
             }
         }
 
diff --git a/core/java/android/view/WindowManagerGlobal.java b/core/java/android/view/WindowManagerGlobal.java
index b183bb6..3dd96f5 100644
--- a/core/java/android/view/WindowManagerGlobal.java
+++ b/core/java/android/view/WindowManagerGlobal.java
@@ -21,7 +21,6 @@
 import android.content.ComponentCallbacks2;
 import android.content.res.Configuration;
 import android.opengl.ManagedEGLContext;
-import android.os.Debug;
 import android.os.IBinder;
 import android.os.RemoteException;
 import android.os.ServiceManager;
@@ -29,7 +28,6 @@
 import android.util.AndroidRuntimeException;
 import android.util.ArraySet;
 import android.util.Log;
-import android.util.Slog;
 import android.view.inputmethod.InputMethodManager;
 import com.android.internal.util.FastPrintWriter;
 
@@ -385,7 +383,7 @@
                 // known windows
                 synchronized (mLock) {
                     for (int i = mRoots.size() - 1; i >= 0; --i) {
-                        mRoots.get(i).terminateHardwareResources();
+                        mRoots.get(i).destroyHardwareResources();
                     }
                 }
                 // Force a full memory flush
diff --git a/core/java/android/widget/NumberPicker.java b/core/java/android/widget/NumberPicker.java
index 4a98f66..19cc3c2 100644
--- a/core/java/android/widget/NumberPicker.java
+++ b/core/java/android/widget/NumberPicker.java
@@ -1425,6 +1425,7 @@
 
     @Override
     protected void onDetachedFromWindow() {
+        super.onDetachedFromWindow();
         removeAllCallbacks();
     }
 
diff --git a/libs/hwui/Caches.cpp b/libs/hwui/Caches.cpp
index f9cf9a2..c0b3bfc 100644
--- a/libs/hwui/Caches.cpp
+++ b/libs/hwui/Caches.cpp
@@ -226,6 +226,8 @@
 
     patchCache.clear();
 
+    clearGarbage();
+
     mInitialized = false;
 }