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.example.android.simple; 18 19 import android.os.Bundle; 20 import android.util.Log; 21 import android.widget.TextView; 22 import dagger.Binds; 23 import dagger.android.AndroidInjector; 24 import dagger.android.support.DaggerAppCompatActivity; 25 import dagger.multibindings.ClassKey; 26 import dagger.multibindings.IntoMap; 27 import javax.inject.Inject; 28 29 /** 30 * The main activity application. It can be injected with any binding from both {@link Component} 31 * and {@link dagger.example.android.simple.SimpleApplication.Component}. 32 */ 33 public class MainActivity extends DaggerAppCompatActivity { 34 @dagger.Subcomponent 35 interface Component extends AndroidInjector<MainActivity> { 36 37 @dagger.Subcomponent.Builder 38 abstract class Builder extends AndroidInjector.Builder<MainActivity> {} 39 } 40 41 @dagger.Module(subcomponents = Component.class) 42 abstract class Module { 43 44 @Binds 45 @IntoMap 46 @ClassKey(MainActivity.class) bind(Component.Builder builder)47 abstract AndroidInjector.Factory<?> bind(Component.Builder builder); 48 } 49 50 private static final String TAG = MainActivity.class.getSimpleName(); 51 52 @Inject @Model String model; 53 54 @Inject logInjection()55 void logInjection() { 56 Log.i(TAG, "Injecting " + MainActivity.class.getSimpleName()); 57 } 58 59 @Override onCreate(Bundle savedInstanceState)60 protected void onCreate(Bundle savedInstanceState) { 61 super.onCreate(savedInstanceState); 62 63 setContentView(R.layout.activity_main); 64 65 TextView greeting = (TextView) findViewById(R.id.greeting); 66 String text = getResources().getString(R.string.welcome, model); 67 greeting.setText(text); 68 } 69 } 70