1 /* 2 * Copyright (C) 2017 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.android.support; 18 19 import android.content.Context; 20 import androidx.annotation.ContentView; 21 import androidx.annotation.LayoutRes; 22 import androidx.fragment.app.Fragment; 23 import dagger.android.AndroidInjector; 24 import dagger.android.DispatchingAndroidInjector; 25 import dagger.android.HasAndroidInjector; 26 import dagger.internal.Beta; 27 import javax.inject.Inject; 28 29 /** 30 * A {@link Fragment} that injects its members in {@link #onAttach(Context)} and can be used to 31 * inject child {@link Fragment}s attached to it. Note that when this fragment gets reattached, its 32 * members will be injected again. 33 */ 34 @Beta 35 public abstract class DaggerFragment extends Fragment implements HasAndroidInjector { 36 37 @Inject DispatchingAndroidInjector<Object> androidInjector; 38 DaggerFragment()39 public DaggerFragment() { 40 super(); 41 } 42 43 @ContentView DaggerFragment(@ayoutRes int contentLayoutId)44 public DaggerFragment(@LayoutRes int contentLayoutId) { 45 super(contentLayoutId); 46 } 47 48 @Override onAttach(Context context)49 public void onAttach(Context context) { 50 AndroidSupportInjection.inject(this); 51 super.onAttach(context); 52 } 53 54 @Override androidInjector()55 public AndroidInjector<Object> androidInjector() { 56 return androidInjector; 57 } 58 } 59