Minor refactor for injecting Base Activity dependencies.

Author: android10

presentation/src/main/java/com/fernandocejas/android10/sample/presentation/AndroidApplication.java

@@ -8,6 +8,7 @@
 import com.fernandocejas.android10.sample.presentation.internal.di.components.ApplicationComponent;
 import com.fernandocejas.android10.sample.presentation.internal.di.components.Dagger_ApplicationComponent;
 import com.fernandocejas.android10.sample.presentation.internal.di.modules.ApplicationModule;
+import com.fernandocejas.android10.sample.presentation.view.activity.BaseActivity;
 
 /**
  * Android Main Application
@@ -18,10 +19,17 @@ public class AndroidApplication extends Application {
 
   @Override public void onCreate() {
     super.onCreate();
+    this.initializeInjector();
+  }
 
+  private void initializeInjector() {
     this.applicationComponent = Dagger_ApplicationComponent.builder()
         .applicationModule(new ApplicationModule(this))
         .build();
     this.applicationComponent.inject(this);
   }
+
+  public void inject(BaseActivity baseActivity) {
+    this.applicationComponent.inject(baseActivity);
+  }
 }

presentation/src/main/java/com/fernandocejas/android10/sample/presentation/internal/di/components/ActivityComponent.java

@@ -5,10 +5,15 @@
 package com.fernandocejas.android10.sample.presentation.internal.di.components;
 
 import com.fernandocejas.android10.sample.presentation.AndroidApplication;
+import com.fernandocejas.android10.sample.presentation.internal.di.modules.ActivityModule;
 import com.fernandocejas.android10.sample.presentation.internal.di.modules.ApplicationModule;
+import com.fernandocejas.android10.sample.presentation.view.activity.BaseActivity;
 import dagger.Component;
+import javax.inject.Singleton;
 
-@Component(modules = ApplicationModule.class)
+@Singleton
+@Component(modules = {ApplicationModule.class, ActivityModule.class})
 public interface ApplicationComponent {
-  AndroidApplication inject(AndroidApplication androidApplication);
+  void inject(AndroidApplication androidApplication);
+  void inject(BaseActivity activity);
 }

presentation/src/main/java/com/fernandocejas/android10/sample/presentation/internal/di/components/ApplicationComponent.java

@@ -4,9 +4,7 @@
 import android.app.Fragment;
 import android.app.FragmentTransaction;
 import android.os.Bundle;
-import com.fernandocejas.android10.sample.presentation.internal.di.components.ActivityComponent;
-import com.fernandocejas.android10.sample.presentation.internal.di.components.Dagger_ActivityComponent;
-import com.fernandocejas.android10.sample.presentation.internal.di.modules.ActivityModule;
+import com.fernandocejas.android10.sample.presentation.AndroidApplication;
 import com.fernandocejas.android10.sample.presentation.navigation.Navigator;
 import javax.inject.Inject;
 
@@ -15,20 +13,16 @@
  */
 public abstract class BaseActivity extends Activity {
 
-  ActivityComponent activityComponent;
-
   @Inject Navigator navigator;
 
   @Override
   protected void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
-
-    this.activityComponent = Dagger_ActivityComponent.builder()
-        .activityModule(new ActivityModule())
-        .build();
-    this.activityComponent.inject(this);
+    this.initializeInjector();
   }
 
+  private void initializeInjector() {((AndroidApplication)getApplication()).inject(this);}
+
   /**
    * Adds a {@link Fragment} to this activity's layout.
    *