| /* |
| * Copyright (C) 2006 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.app; |
| |
| import android.content.ComponentCallbacks; |
| import android.content.Context; |
| import android.content.ContextWrapper; |
| import android.content.res.Configuration; |
| |
| /** |
| * Base class for those who need to maintain global application state. You can |
| * provide your own implementation by specifying its name in your |
| * AndroidManifest.xml's <application> tag, which will cause that class |
| * to be instantiated for you when the process for your application/package is |
| * created. |
| * |
| * <p class="note">There is normally no need to subclass Application. In |
| * most situation, static singletons can provide the same functionality in a |
| * more modular way. If your singleton needs a global context (for example |
| * to register broadcast receivers), the function to retrieve it can be |
| * given a {@link android.content.Context} which internally uses |
| * {@link android.content.Context#getApplicationContext() Context.getApplicationContext()} |
| * when first constructing the singleton.</p> |
| */ |
| public class Application extends ContextWrapper implements ComponentCallbacks { |
| |
| public Application() { |
| super(null); |
| } |
| |
| /** |
| * Called when the application is starting, before any other application |
| * objects have been created. Implementations should be as quick as |
| * possible (for example using lazy initialization of state) since the time |
| * spent in this function directly impacts the performance of starting the |
| * first activity, service, or receiver in a process. |
| * If you override this method, be sure to call super.onCreate(). |
| */ |
| public void onCreate() { |
| } |
| |
| /** |
| * This method is for use in emulated process environments. It will |
| * never be called on a production Android device, where processes are |
| * removed by simply killing them; no user code (including this callback) |
| * is executed when doing so. |
| */ |
| public void onTerminate() { |
| } |
| |
| public void onConfigurationChanged(Configuration newConfig) { |
| } |
| |
| public void onLowMemory() { |
| } |
| |
| // ------------------ Internal API ------------------ |
| |
| /** |
| * @hide |
| */ |
| /* package */ final void attach(Context context) { |
| attachBaseContext(context); |
| } |
| |
| } |