1 files changed, 155 insertions, 0 deletions
diff --git a/java/com/android/dialer/app/settings/AppCompatPreferenceActivity.java b/java/com/android/dialer/app/settings/AppCompatPreferenceActivity.java
new file mode 100644
index 000000000..2c464386b
--- /dev/null
+++ b/java/com/android/dialer/app/settings/AppCompatPreferenceActivity.java
@@ -0,0 +1,155 @@
+/*
+ * Copyright (C) 2015 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 com.android.dialer.app.settings;
+
+import android.content.res.Configuration;
+import android.os.Bundle;
+import android.preference.PreferenceActivity;
+import android.support.v7.app.ActionBar;
+import android.support.v7.app.AppCompatDelegate;
+import android.support.v7.widget.Toolbar;
+import android.view.MenuInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+/**
+ * A {@link android.preference.PreferenceActivity} which implements and proxies the necessary calls
+ * to be used with AppCompat.
+ */
+public class AppCompatPreferenceActivity extends PreferenceActivity {
+
+  private AppCompatDelegate mDelegate;
+
+  private boolean mIsSafeToCommitTransactions;
+
+  @Override
+  protected void onCreate(Bundle savedInstanceState) {
+    getDelegate().installViewFactory();
+    getDelegate().onCreate(savedInstanceState);
+    super.onCreate(savedInstanceState);
+    mIsSafeToCommitTransactions = true;
+  }
+
+  @Override
+  protected void onPostCreate(Bundle savedInstanceState) {
+    super.onPostCreate(savedInstanceState);
+    getDelegate().onPostCreate(savedInstanceState);
+  }
+
+  public ActionBar getSupportActionBar() {
+    return getDelegate().getSupportActionBar();
+  }
+
+  public void setSupportActionBar(Toolbar toolbar) {
+    getDelegate().setSupportActionBar(toolbar);
+  }
+
+  @Override
+  public MenuInflater getMenuInflater() {
+    return getDelegate().getMenuInflater();
+  }
+
+  @Override
+  public void setContentView(int layoutResID) {
+    getDelegate().setContentView(layoutResID);
+  }
+
+  @Override
+  public void setContentView(View view) {
+    getDelegate().setContentView(view);
+  }
+
+  @Override
+  public void setContentView(View view, ViewGroup.LayoutParams params) {
+    getDelegate().setContentView(view, params);
+  }
+
+  @Override
+  public void addContentView(View view, ViewGroup.LayoutParams params) {
+    getDelegate().addContentView(view, params);
+  }
+
+  @Override
+  protected void onPostResume() {
+    super.onPostResume();
+    getDelegate().onPostResume();
+  }
+
+  @Override
+  protected void onTitleChanged(CharSequence title, int color) {
+    super.onTitleChanged(title, color);
+    getDelegate().setTitle(title);
+  }
+
+  @Override
+  public void onConfigurationChanged(Configuration newConfig) {
+    super.onConfigurationChanged(newConfig);
+    getDelegate().onConfigurationChanged(newConfig);
+  }
+
+  @Override
+  protected void onStop() {
+    super.onStop();
+    getDelegate().onStop();
+  }
+
+  @Override
+  protected void onDestroy() {
+    super.onDestroy();
+    getDelegate().onDestroy();
+  }
+
+  @Override
+  public void invalidateOptionsMenu() {
+    getDelegate().invalidateOptionsMenu();
+  }
+
+  private AppCompatDelegate getDelegate() {
+    if (mDelegate == null) {
+      mDelegate = AppCompatDelegate.create(this, null);
+    }
+    return mDelegate;
+  }
+
+  @Override
+  protected void onStart() {
+    super.onStart();
+    mIsSafeToCommitTransactions = true;
+  }
+
+  @Override
+  protected void onResume() {
+    super.onResume();
+    mIsSafeToCommitTransactions = true;
+  }
+
+  @Override
+  protected void onSaveInstanceState(Bundle outState) {
+    super.onSaveInstanceState(outState);
+    mIsSafeToCommitTransactions = false;
+  }
+
+  /**
+   * Returns true if it is safe to commit {@link FragmentTransaction}s at this time, based on
+   * whether {@link Activity#onSaveInstanceState} has been called or not.
+   *
+   * <p>Make sure that the current activity calls into {@link super.onSaveInstanceState(Bundle
+   * outState)} (if that method is overridden), so the flag is properly set.
+   */
+  public boolean isSafeToCommitTransactions() {
+    return mIsSafeToCommitTransactions;
+  }
+}