| /* |
| * Copyright (C) 2017 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.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.content.BroadcastReceiver; |
| import android.content.ContentProvider; |
| import android.content.Intent; |
| import android.content.pm.ApplicationInfo; |
| |
| /** |
| * Interface used to control the instantiation of manifest elements. |
| * |
| * @see #instantiateApplication |
| * @see #instantiateActivity |
| * @see #instantiateService |
| * @see #instantiateReceiver |
| * @see #instantiateProvider |
| */ |
| public class AppComponentFactory { |
| |
| /** |
| * Allows application to override the creation of the default class loader. |
| * This can be used to perform things such as dependency injection or setting up |
| * a custom class loader hierarchy. |
| * |
| * @param cl The default classloader instantiated by platform. |
| */ |
| public @NonNull ClassLoader instantiateClassLoader(@NonNull ClassLoader cl) { |
| return cl; |
| } |
| |
| /** |
| * Allows application to override the creation of the application object. This can be used to |
| * perform things such as dependency injection or class loader changes to these |
| * classes. |
| * <p> |
| * This method is only intended to provide a hook for instantiation. It does not provide |
| * earlier access to the Application object. The returned object will not be initialized |
| * as a Context yet and should not be used to interact with other android APIs. |
| * |
| * @param cl The default classloader to use for instantiation. |
| * @param className The class to be instantiated. |
| */ |
| public @NonNull Application instantiateApplication(@NonNull ClassLoader cl, |
| @NonNull String className) |
| throws InstantiationException, IllegalAccessException, ClassNotFoundException { |
| return (Application) cl.loadClass(className).newInstance(); |
| } |
| |
| /** |
| * Allows application to override the creation of activities. This can be used to |
| * perform things such as dependency injection or class loader changes to these |
| * classes. |
| * <p> |
| * This method is only intended to provide a hook for instantiation. It does not provide |
| * earlier access to the Activity object. The returned object will not be initialized |
| * as a Context yet and should not be used to interact with other android APIs. |
| * |
| * @param cl The default classloader to use for instantiation. |
| * @param className The class to be instantiated. |
| * @param intent Intent creating the class. |
| */ |
| public @NonNull Activity instantiateActivity(@NonNull ClassLoader cl, @NonNull String className, |
| @Nullable Intent intent) |
| throws InstantiationException, IllegalAccessException, ClassNotFoundException { |
| return (Activity) cl.loadClass(className).newInstance(); |
| } |
| |
| /** |
| * Allows application to override the creation of receivers. This can be used to |
| * perform things such as dependency injection or class loader changes to these |
| * classes. |
| * |
| * @param cl The default classloader to use for instantiation. |
| * @param className The class to be instantiated. |
| * @param intent Intent creating the class. |
| */ |
| public @NonNull BroadcastReceiver instantiateReceiver(@NonNull ClassLoader cl, |
| @NonNull String className, @Nullable Intent intent) |
| throws InstantiationException, IllegalAccessException, ClassNotFoundException { |
| return (BroadcastReceiver) cl.loadClass(className).newInstance(); |
| } |
| |
| /** |
| * Allows application to override the creation of services. This can be used to |
| * perform things such as dependency injection or class loader changes to these |
| * classes. |
| * <p> |
| * This method is only intended to provide a hook for instantiation. It does not provide |
| * earlier access to the Service object. The returned object will not be initialized |
| * as a Context yet and should not be used to interact with other android APIs. |
| * |
| * @param cl The default classloader to use for instantiation. |
| * @param className The class to be instantiated. |
| * @param intent Intent creating the class. |
| */ |
| public @NonNull Service instantiateService(@NonNull ClassLoader cl, |
| @NonNull String className, @Nullable Intent intent) |
| throws InstantiationException, IllegalAccessException, ClassNotFoundException { |
| return (Service) cl.loadClass(className).newInstance(); |
| } |
| |
| /** |
| * Allows application to override the creation of providers. This can be used to |
| * perform things such as dependency injection or class loader changes to these |
| * classes. |
| * <p> |
| * This method is only intended to provide a hook for instantiation. It does not provide |
| * earlier access to the ContentProvider object. The returned object will not be initialized |
| * with a Context yet and should not be used to interact with other android APIs. |
| * |
| * @param cl The default classloader to use for instantiation. |
| * @param className The class to be instantiated. |
| */ |
| public @NonNull ContentProvider instantiateProvider(@NonNull ClassLoader cl, |
| @NonNull String className) |
| throws InstantiationException, IllegalAccessException, ClassNotFoundException { |
| return (ContentProvider) cl.loadClass(className).newInstance(); |
| } |
| |
| private ApplicationInfo mApplicationInfo = null; |
| |
| void setApplicationInfo(ApplicationInfo info) { |
| mApplicationInfo = info; |
| } |
| |
| /** |
| * Returns the ApplicationInfo associated with this package. |
| */ |
| public ApplicationInfo getApplicationInfo() { |
| return mApplicationInfo; |
| } |
| |
| /** |
| * @hide |
| */ |
| public static final AppComponentFactory DEFAULT = new AppComponentFactory(); |
| } |