Define module contracts

Author: skywall

app/src/main/java/cz/skywall/multimoduleexample/App.kt

@@ -11,12 +11,15 @@ import javax.inject.Inject
 
 class App : Application() {
 
-    @Inject lateinit var sharedPreferences: SharedPreferences
-    @Inject lateinit var apiService: ApiService
-    @Inject lateinit var userDao: UserDao
+    @Inject
+    lateinit var sharedPreferences: SharedPreferences
+    @Inject
+    lateinit var apiService: ApiService
+    @Inject
+    lateinit var userDao: UserDao
 
     companion object {
-        lateinit var INSTANCE : App
+        lateinit var INSTANCE: App
     }
 
     val applicationComponent by lazy {

app/src/main/java/cz/skywall/multimoduleexample/injection/ApplicationComponent.kt

@@ -4,9 +4,9 @@ import android.app.Application
 import android.content.SharedPreferences
 import cz.skywall.multimoduleexample.App
 import cz.skywall.multimoduleexample.core.injection.CoreModule
+import cz.skywall.multimoduleexample.database.DatabaseContract
 import cz.skywall.multimoduleexample.database.DatabaseModule
-import cz.skywall.multimoduleexample.database.UserDao
-import cz.skywall.multimoduleexample.network.ApiService
+import cz.skywall.multimoduleexample.network.NetworkContract
 import cz.skywall.multimoduleexample.network.NetworkModule
 import dagger.BindsInstance
 import dagger.Component
@@ -20,7 +20,7 @@ import javax.inject.Singleton
         NetworkModule::class
     ]
 )
-interface ApplicationComponent {
+interface ApplicationComponent : DatabaseContract, NetworkContract {
 
     @Component.Factory
     interface Factory {
@@ -29,10 +29,6 @@ interface ApplicationComponent {
 
     fun inject(app: App)
 
-    fun userDao(): UserDao
-
-    fun apiService(): ApiService
-
     fun sharedPreference(): SharedPreferences
 
     fun application(): Application

database/src/main/java/cz/skywall/multimoduleexample/database/DatabaseContract.kt

@@ -0,0 +1,6 @@
+package cz.skywall.multimoduleexample.database
+
+interface DatabaseContract {
+
+    fun userDao(): UserDao
+}

network/src/main/java/cz/skywall/multimoduleexample/network/NetworkContract.kt

@@ -0,0 +1,5 @@
+package cz.skywall.multimoduleexample.network
+
+interface NetworkContract {
+    fun apiService(): ApiService
+}