--- /dev/null
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.support.v2.app;
+
+import android.content.Context;
+import android.os.Parcelable;
+import android.util.SparseArray;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.FrameLayout;
+
+/**
+ * Pre-Honeycomb versions of the platform don't have View.setSaveFromParentEnabled(),
+ * so instead we insert this between the view and its parent.
+ */
+public class NoSaveStateFrameLayout extends FrameLayout {
+ static ViewGroup wrap(View child) {
+ NoSaveStateFrameLayout wrapper = new NoSaveStateFrameLayout(child.getContext());
+ ViewGroup.LayoutParams childParams = child.getLayoutParams();
+ if (childParams != null) {
+ wrapper.setLayoutParams(childParams);
+ }
+ NoSaveStateFrameLayout.LayoutParams lp = new NoSaveStateFrameLayout.LayoutParams(
+ ViewGroup.LayoutParams.FILL_PARENT, ViewGroup.LayoutParams.FILL_PARENT);
+ child.setLayoutParams(lp);
+ wrapper.addView(child);
+ return wrapper;
+ }
+
+ public NoSaveStateFrameLayout(Context context) {
+ super(context);
+ }
+
+ /**
+ * Override to prevent freezing of any child views.
+ */
+ @Override
+ protected void dispatchSaveInstanceState(SparseArray<Parcelable> container) {
+ dispatchFreezeSelfOnly(container);
+ }
+
+ /**
+ * Override to prevent thawing of any child views.
+ */
+ @Override
+ protected void dispatchRestoreInstanceState(SparseArray<Parcelable> container) {
+ dispatchThawSelfOnly(container);
+ }
+}