use dagger-android application,activity,fragment classes

Author: PramodGarg

app/build.gradle

@@ -2,7 +2,7 @@ apply plugin: 'com.android.application'
 
 android {
     compileSdkVersion 25
-    buildToolsVersion "25.0.2"
+    buildToolsVersion '26.0.2'
     defaultConfig {
         applicationId "iammert.com.dagger_android_injection"
         minSdkVersion 15

app/src/main/java/iammert/com/dagger_android_injection/AndroidSampleApp.java

@@ -1,37 +1,21 @@
 package iammert.com.dagger_android_injection;
 
-import android.app.Activity;
-import android.app.Application;
-
-import javax.inject.Inject;
-
-import dagger.android.DispatchingAndroidInjector;
-import dagger.android.HasActivityInjector;
+import dagger.android.AndroidInjector;
+import dagger.android.DaggerApplication;
+import iammert.com.dagger_android_injection.di.AppComponent;
 import iammert.com.dagger_android_injection.di.DaggerAppComponent;
 
 
 /**
  * Created by mertsimsek on 25/05/2017.
  */
 
-public class AndroidSampleApp extends Application implements HasActivityInjector {
-
-    @Inject
-    DispatchingAndroidInjector<Activity> activityDispatchingAndroidInjector;
+public class AndroidSampleApp extends DaggerApplication {
 
-    @Override
-    public void onCreate() {
-        super.onCreate();
-        DaggerAppComponent
-                .builder()
-                .application(this)
-                .build()
-                .inject(this);
-
-    }
 
-    @Override
-    public DispatchingAndroidInjector<Activity> activityInjector() {
-        return activityDispatchingAndroidInjector;
+    protected AndroidInjector<? extends DaggerApplication> applicationInjector() {
+        AppComponent appComponent = DaggerAppComponent.builder().application(this).build();
+        appComponent.inject(this);
+        return appComponent;
     }
 }

app/src/main/java/iammert/com/dagger_android_injection/di/AppComponent.java

@@ -2,25 +2,34 @@
 
 import android.app.Application;
 
+import javax.inject.Singleton;
+
 import dagger.BindsInstance;
 import dagger.Component;
-import dagger.android.AndroidInjectionModule;
+import dagger.android.AndroidInjector;
+import dagger.android.DaggerApplication;
+import dagger.android.support.AndroidSupportInjectionModule;
 import iammert.com.dagger_android_injection.AndroidSampleApp;
 
 /**
  * Created by mertsimsek on 25/05/2017.
  */
+@Singleton
 @Component(modules = {
-        AndroidInjectionModule.class,
+        AndroidSupportInjectionModule.class,
         AppModule.class,
         ActivityBuilder.class})
-public interface AppComponent {
+public interface AppComponent extends AndroidInjector<DaggerApplication> {
+
+    void inject(AndroidSampleApp app);
+
+    @Override
+    void inject(DaggerApplication instance);
 
     @Component.Builder
     interface Builder {
-        @BindsInstance Builder application(Application application);
+        @BindsInstance
+        Builder application(Application application);
         AppComponent build();
     }
-
-    void inject(AndroidSampleApp app);
 }

app/src/main/java/iammert/com/dagger_android_injection/di/AppModule.java

@@ -3,21 +3,16 @@
 import android.app.Application;
 import android.content.Context;
 
-import javax.inject.Singleton;
-
+import dagger.Binds;
 import dagger.Module;
-import dagger.Provides;
 
 /**
  * Created by mertsimsek on 25/05/2017.
  */
 @Module
-public class AppModule {
+public abstract class AppModule {
 
-    @Provides
-    @Singleton
-    Context provideContext(Application application) {
-        return application;
-    }
+    @Binds
+    abstract Context provideContext(Application application);
 
 }

app/src/main/java/iammert/com/dagger_android_injection/ui/detail/DetailActivity.java

@@ -1,35 +1,25 @@
 package iammert.com.dagger_android_injection.ui.detail;
 
 import android.os.Bundle;
-import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
-import android.support.v7.app.AppCompatActivity;
 import android.util.Log;
 
 import javax.inject.Inject;
 
-import dagger.android.AndroidInjection;
-import dagger.android.AndroidInjector;
-import dagger.android.DispatchingAndroidInjector;
-import dagger.android.support.HasSupportFragmentInjector;
+import dagger.android.support.DaggerAppCompatActivity;
 import iammert.com.dagger_android_injection.R;
 import iammert.com.dagger_android_injection.ui.detail.fragment.DetailFragment;
 
 /**
  * Created by mertsimsek on 25/05/2017.
  */
 
-public class DetailActivity extends AppCompatActivity implements HasSupportFragmentInjector, DetailView {
-
-    @Inject
-    DispatchingAndroidInjector<Fragment> fragmentDispatchingAndroidInjector;
+public class DetailActivity extends DaggerAppCompatActivity implements DetailView {
 
     @Inject
     DetailPresenter detailPresenter;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
-        AndroidInjection.inject(this);
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_detail);
         detailPresenter.loadDetail();
@@ -46,8 +36,4 @@ public void onDetailLoaded() {
         Log.v("TEST", "Detail is loaded");
     }
 
-    @Override
-    public AndroidInjector<Fragment> supportFragmentInjector() {
-        return fragmentDispatchingAndroidInjector;
-    }
 }

app/src/main/java/iammert/com/dagger_android_injection/ui/detail/DetailActivityModule.java

@@ -1,5 +1,6 @@
 package iammert.com.dagger_android_injection.ui.detail;
 
+import dagger.Binds;
 import dagger.Module;
 import dagger.Provides;
 import iammert.com.dagger_android_injection.data.ApiService;
@@ -8,15 +9,13 @@
  * Created by mertsimsek on 30/05/2017.
  */
 @Module
-public class DetailActivityModule {
+public abstract class DetailActivityModule {
 
     @Provides
-    DetailView provideDetailView(DetailActivity detailActivity) {
-        return detailActivity;
-    }
-
-    @Provides
-    DetailPresenter provideDetailPresenter(DetailView detailView, ApiService apiService) {
+    static DetailPresenter provideDetailPresenter(DetailView detailView, ApiService apiService) {
         return new DetailPresenterImpl(detailView, apiService);
     }
+
+    @Binds
+    abstract DetailView provideDetailView(DetailActivity detailActivity);
 }

app/src/main/java/iammert/com/dagger_android_injection/ui/detail/fragment/DetailFragment.java

@@ -3,21 +3,20 @@
 import android.content.Context;
 import android.os.Bundle;
 import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
 import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 
 import javax.inject.Inject;
 
-import dagger.android.support.AndroidSupportInjection;
+import dagger.android.support.DaggerFragment;
 
 /**
  * Created by mertsimsek on 02/06/2017.
  */
 
-public class DetailFragment extends Fragment implements DetailFragmentView {
+public class DetailFragment extends DaggerFragment implements DetailFragmentView {
 
     @Inject
     DetailFragmentPresenter detailFragmentPresenter;
@@ -37,7 +36,6 @@ public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container,
 
     @Override
     public void onAttach(Context context) {
-        AndroidSupportInjection.inject(this);
         super.onAttach(context);
     }
 

app/src/main/java/iammert/com/dagger_android_injection/ui/detail/fragment/DetailFragmentModule.java

@@ -1,6 +1,5 @@
 package iammert.com.dagger_android_injection.ui.detail.fragment;
 
-import dagger.Binds;
 import dagger.Module;
 import dagger.Provides;
 

app/src/main/java/iammert/com/dagger_android_injection/ui/main/MainActivity.java

@@ -1,25 +1,24 @@
 package iammert.com.dagger_android_injection.ui.main;
 
 import android.content.Intent;
-import android.support.v7.app.AppCompatActivity;
 import android.os.Bundle;
 import android.util.Log;
 import android.view.View;
 
 import javax.inject.Inject;
 
-import dagger.android.AndroidInjection;
+import dagger.android.support.DaggerAppCompatActivity;
 import iammert.com.dagger_android_injection.R;
 import iammert.com.dagger_android_injection.ui.detail.DetailActivity;
 
-public class MainActivity extends AppCompatActivity implements MainView{
+public class MainActivity extends DaggerAppCompatActivity implements MainView {
 
     @Inject
     MainPresenter mainPresenter;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
-        AndroidInjection.inject(this);
+
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
         mainPresenter.loadMain();

app/src/main/java/iammert/com/dagger_android_injection/ui/main/MainActivityModule.java

@@ -1,5 +1,6 @@
 package iammert.com.dagger_android_injection.ui.main;
 
+import dagger.Binds;
 import dagger.Module;
 import dagger.Provides;
 import iammert.com.dagger_android_injection.data.ApiService;
@@ -8,15 +9,13 @@
  * Created by mertsimsek on 25/05/2017.
  */
 @Module
-public class MainActivityModule {
+public abstract class MainActivityModule {
 
     @Provides
-    MainView provideMainView(MainActivity mainActivity){
-        return mainActivity;
-    }
-
-    @Provides
-    MainPresenter provideMainPresenter(MainView mainView, ApiService apiService){
+    static MainPresenter provideMainPresenter(MainView mainView, ApiService apiService) {
         return new MainPresenterImpl(mainView, apiService);
     }
+
+    @Binds
+    abstract MainView provideMainView(MainActivity mainActivity);
 }

build.gradle

@@ -7,7 +7,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.0.0-alpha4'
+        classpath 'com.android.tools.build:gradle:3.0.0'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Wed Jun 28 17:54:12 EEST 2017
+#Fri Nov 03 15:44:43 IST 2017
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.0-rc-1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip