| /* |
| * 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; |
| |
| /** |
| * 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 application object. 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. |
| */ |
| 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. |
| * |
| * @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. |
| * |
| * @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. |
| * |
| * @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(); |
| } |
| |
| /** |
| * @hide |
| */ |
| public static AppComponentFactory DEFAULT = new AppComponentFactory(); |
| } |