1 /* 2 * Copyright (C) 2021 The Dagger Authors. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package dagger.hilt.android.internal; 18 19 import android.app.Application; 20 import android.content.Context; 21 import android.content.ContextWrapper; 22 23 /** 24 * Utility methods for dealing with contexts. 25 */ 26 public final class Contexts { 27 28 /** Finds the android Application from a context. */ getApplication(Context context)29 public static Application getApplication(Context context) { 30 if (context instanceof Application) { 31 return (Application) context; 32 } 33 34 Context unwrapContext = context; 35 while (unwrapContext instanceof ContextWrapper) { 36 unwrapContext = ((ContextWrapper) unwrapContext).getBaseContext(); 37 if (unwrapContext instanceof Application) { 38 return (Application) unwrapContext; 39 } 40 } 41 42 throw new IllegalStateException( 43 "Could not find an Application in the given context: " + context); 44 } 45 Contexts()46 private Contexts() {} 47 } 48