Enable official kotlin code style.

## Details

https://kotlinlang.org/docs/reference/code-style-migration-guide.html

Author: IRus

app/src/main/java/cn/nekocode/gank/GankApplication.kt

@@ -34,7 +34,7 @@ import okhttp3.OkHttpClient
 /**
  * @author nekocode ([email protected])
  */
-class GankApplication: Application() {
+class GankApplication : Application() {
     lateinit var activityRouter: ActivityRouter
     lateinit var broadcastRouter: BroadcastRouter
     lateinit var gankIoService: GankIoService
@@ -43,11 +43,11 @@ class GankApplication: Application() {
         super.onCreate()
 
         activityRouter = Meepo.Builder()
-                .config(UriConfig().scheme(BuildConfig.SCHEME).host(BuildConfig.APPLICATION_ID))
-                .build().create(ActivityRouter::class.java)
+            .config(UriConfig().scheme(BuildConfig.SCHEME).host(BuildConfig.APPLICATION_ID))
+            .build().create(ActivityRouter::class.java)
         broadcastRouter = Meepo.Builder()
-                .config(BroadcastConfig()).adapter(BroadcastCallAdapter())
-                .build().create(BroadcastRouter::class.java)
+            .config(BroadcastConfig()).adapter(BroadcastCallAdapter())
+            .build().create(BroadcastRouter::class.java)
         gankIoService = GankIoService(OkHttpClient(), Gson())
     }
 }
@@ -57,19 +57,20 @@ fun Context.broadcastRouter() = (this.applicationContext as GankApplication).bro
 fun Context.gankIoService() = (this.applicationContext as GankApplication).gankIoService
 
 fun Context.registerLocalReceiver(
-        receiver: (Context?, Intent?) -> Unit, intentFilter: IntentFilter) {
+    receiver: (Context?, Intent?) -> Unit, intentFilter: IntentFilter) {
 
     LocalBroadcastManager.getInstance(this)
-            .registerReceiver(object : BroadcastReceiver() {
-                override fun onReceive(context: Context?, intent: Intent?) {
-                    receiver.invoke(context, intent)
-                }
-            }, intentFilter)
+        .registerReceiver(object : BroadcastReceiver() {
+            override fun onReceive(context: Context?, intent: Intent?) {
+                receiver.invoke(context, intent)
+            }
+        }, intentFilter)
 }
+
 fun Context.registerLocalReceiver(receiver: (Context?, Intent?) -> Unit, vararg actions: String) {
     val intentFilter = IntentFilter()
     actions.forEach {
         intentFilter.addAction(it)
     }
     registerLocalReceiver(receiver, intentFilter)
-}
+}

app/src/main/java/cn/nekocode/gank/base/BaseActivity.kt

@@ -28,7 +28,7 @@ import io.reactivex.parallel.ParallelFlowable
 /**
  * @author nekocode ([email protected])
  */
-open class BaseActivity: AppCompatActivity() {
+open class BaseActivity : AppCompatActivity() {
     override fun onOptionsItemSelected(item: MenuItem): Boolean {
         return when (item.itemId) {
             android.R.id.home -> {
@@ -52,21 +52,26 @@ open class BaseActivity: AppCompatActivity() {
      * Modified from https://github.com/uber/AutoDispose
      */
     @CheckReturnValue
-    fun <T> Flowable<T>.autoDisposable(): FlowableSubscribeProxy<T>
-            = this.`as`(AutoDispose.autoDisposable(scopeProvider))
+    fun <T> Flowable<T>.autoDisposable(): FlowableSubscribeProxy<T> =
+        this.`as`(AutoDispose.autoDisposable(scopeProvider))
+
     @CheckReturnValue
-    fun <T> Observable<T>.autoDisposable(): ObservableSubscribeProxy<T>
-            = this.`as`(AutoDispose.autoDisposable(scopeProvider))
+    fun <T> Observable<T>.autoDisposable(): ObservableSubscribeProxy<T> =
+        this.`as`(AutoDispose.autoDisposable(scopeProvider))
+
     @CheckReturnValue
-    fun <T> Single<T>.autoDisposable(): SingleSubscribeProxy<T>
-            = this.`as`(AutoDispose.autoDisposable(scopeProvider))
+    fun <T> Single<T>.autoDisposable(): SingleSubscribeProxy<T> =
+        this.`as`(AutoDispose.autoDisposable(scopeProvider))
+
     @CheckReturnValue
-    fun <T> Maybe<T>.autoDisposable(): MaybeSubscribeProxy<T>
-            = this.`as`(AutoDispose.autoDisposable(scopeProvider))
+    fun <T> Maybe<T>.autoDisposable(): MaybeSubscribeProxy<T> =
+        this.`as`(AutoDispose.autoDisposable(scopeProvider))
+
     @CheckReturnValue
-    fun Completable.autoDisposable(): CompletableSubscribeProxy
-            = this.`as`(AutoDispose.autoDisposable<Any>(scopeProvider))
+    fun Completable.autoDisposable(): CompletableSubscribeProxy =
+        this.`as`(AutoDispose.autoDisposable<Any>(scopeProvider))
+
     @CheckReturnValue
-    fun <T> ParallelFlowable<T>.autoDisposable(): ParallelFlowableSubscribeProxy<T>
-            = this.`as`(AutoDispose.autoDisposable(scopeProvider))
-}
+    fun <T> ParallelFlowable<T>.autoDisposable(): ParallelFlowableSubscribeProxy<T> =
+        this.`as`(AutoDispose.autoDisposable(scopeProvider))
+}

app/src/main/java/cn/nekocode/gank/ui/home/MainActivity.kt

@@ -43,7 +43,7 @@ class MainActivity : BaseActivity() {
         // Register local broadcast receiver
         registerLocalReceiver({ _, intent ->
             val action = (intent ?: return@registerLocalReceiver).action
-                    ?: return@registerLocalReceiver
+                ?: return@registerLocalReceiver
             when (action) {
                 BroadcastRouter.FETCH_SUC -> {
                     fetchBtn.text = getString(R.string.fetch_suc)
@@ -58,4 +58,4 @@ class MainActivity : BaseActivity() {
         super.onSaveInstanceState(outState)
         outState?.let { StateSaver.saveInstanceState(this, it) }
     }
-}
+}

app/src/main/java/cn/nekocode/gank/ui/pic/PicActivity.kt

@@ -53,27 +53,27 @@ class PicActivity : BaseActivity() {
             Single.just(pic!!)
         } else {
             gankIoService().picApi.getMeiziPics(1, 0)
-                    .subscribeOn(Schedulers.io())
-                    .firstOrError()
-                    .map { response ->
-                        pic = response.results[0]
-                        pic
-                    }
+                .subscribeOn(Schedulers.io())
+                .firstOrError()
+                .map { response ->
+                    pic = response.results[0]
+                    pic
+                }
         }
-                .observeOn(AndroidSchedulers.mainThread())
-                .autoDisposable()
-                .subscribe({ pic ->
-                    title = pic.id
-                    Picasso.with(this).load(pic.url).centerCrop().fit().into(imageView)
-                    broadcastRouter().tellFetchSuc(this)
+            .observeOn(AndroidSchedulers.mainThread())
+            .autoDisposable()
+            .subscribe({ pic ->
+                title = pic.id
+                Picasso.with(this).load(pic.url).centerCrop().fit().into(imageView)
+                broadcastRouter().tellFetchSuc(this)
 
-                }, { _ ->
-                    Toast.makeText(this, R.string.sth_went_wrong, Toast.LENGTH_SHORT).show()
-                })
+            }, { _ ->
+                Toast.makeText(this, R.string.sth_went_wrong, Toast.LENGTH_SHORT).show()
+            })
     }
 
     override fun onSaveInstanceState(outState: Bundle?) {
         super.onSaveInstanceState(outState)
         outState?.let { StateSaver.saveInstanceState(this, it) }
     }
-}
+}