Simplify showing back button on toolbar

presentation/src/main/java/common/base/QkActivity.kt

@@ -74,4 +74,8 @@ abstract class QkActivity<VM : QkViewModel<*, *>> : AppCompatActivity() {
         return result
     }
 
+    protected fun showBackButton(show: Boolean) {
+        supportActionBar?.setDisplayHomeAsUpEnabled(show)
+    }
+
 }

presentation/src/main/java/feature/blocked/BlockedActivity.kt

@@ -49,7 +49,7 @@ class BlockedActivity : QkThemedActivity<BlockedViewModel>(), BlockedView {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.blocked_activity)
         setTitle(R.string.blocked_title)
-        supportActionBar?.setDisplayHomeAsUpEnabled(true)
+        showBackButton(true)
         viewModel.bindView(this)
 
         colors.background

presentation/src/main/java/feature/compose/ComposeActivity.kt

@@ -82,7 +82,7 @@ class ComposeActivity : QkThemedActivity<ComposeViewModel>(), ComposeView {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.compose_activity)
-        supportActionBar?.setDisplayHomeAsUpEnabled(true)
+        showBackButton(true)
         viewModel.bindView(this)
 
         chipsAdapter.view = chips

presentation/src/main/java/feature/conversationinfo/ConversationInfoActivity.kt

@@ -54,7 +54,7 @@ class ConversationInfoActivity : QkThemedActivity<ConversationInfoViewModel>(),
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.conversation_info_activity)
-        supportActionBar?.setDisplayHomeAsUpEnabled(true)
+        showBackButton(true)
         viewModel.bindView(this)
         setTitle(R.string.info_title)
 

presentation/src/main/java/feature/gallery/GalleryActivity.kt

@@ -44,7 +44,7 @@ class GalleryActivity : QkActivity<GalleryViewModel>(), GalleryView {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.gallery_activity)
         postponeEnterTransition()
-        supportActionBar?.setDisplayHomeAsUpEnabled(true)
+        showBackButton(true)
         viewModel.bindView(this)
 
         val transition = TransitionSet().apply {

presentation/src/main/java/feature/notificationprefs/NotificationPrefsActivity.kt

@@ -27,14 +27,14 @@ import com.jakewharton.rxbinding2.view.clicks
 import com.moez.QKSMS.R
 import com.uber.autodispose.android.lifecycle.scope
 import com.uber.autodispose.kotlin.autoDisposable
+import common.MenuItemAdapter
+import common.base.QkThemedActivity
+import common.widget.PreferenceView
 import injection.appComponent
 import io.reactivex.subjects.PublishSubject
 import io.reactivex.subjects.Subject
 import kotlinx.android.synthetic.main.notification_prefs_activity.*
 import kotlinx.android.synthetic.main.settings_switch_widget.view.*
-import common.MenuItemAdapter
-import common.base.QkThemedActivity
-import common.widget.PreferenceView
 import javax.inject.Inject
 
 class NotificationPrefsActivity : QkThemedActivity<NotificationPrefsViewModel>(), NotificationPrefsView {
@@ -54,7 +54,7 @@ class NotificationPrefsActivity : QkThemedActivity<NotificationPrefsViewModel>()
         super.onCreate(savedInstanceState)
         setContentView(R.layout.notification_prefs_activity)
         setTitle(R.string.title_notification_prefs)
-        supportActionBar?.setDisplayHomeAsUpEnabled(true)
+        showBackButton(true)
         viewModel.bindView(this)
 
         nightModeAdapter.setData(R.array.night_modes)

presentation/src/main/java/feature/plus/PlusActivity.kt

@@ -24,14 +24,14 @@ import com.jakewharton.rxbinding2.view.clicks
 import com.moez.QKSMS.R
 import com.uber.autodispose.android.lifecycle.scope
 import com.uber.autodispose.kotlin.autoDisposable
-import injection.appComponent
+import common.base.QkThemedActivity
 import common.util.BillingManager
 import common.util.FontProvider
 import common.util.extensions.setBackgroundTint
 import common.util.extensions.setTint
 import common.util.extensions.setVisible
+import injection.appComponent
 import kotlinx.android.synthetic.main.qksms_plus_activity.*
-import common.base.QkThemedActivity
 import javax.inject.Inject
 
 class PlusActivity : QkThemedActivity<PlusViewModel>(), PlusView {
@@ -47,7 +47,7 @@ class PlusActivity : QkThemedActivity<PlusViewModel>(), PlusView {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.qksms_plus_activity)
         setTitle(R.string.title_qksms_plus)
-        supportActionBar?.setDisplayHomeAsUpEnabled(true)
+        showBackButton(true)
         viewModel.bindView(this)
 
         fontProvider.getLato {

presentation/src/main/java/feature/settings/SettingsActivity.kt

@@ -70,12 +70,15 @@ class SettingsActivity : QkThemedActivity<SettingsViewModel>(), SettingsView {
     private var textSizeDialog: AlertDialog? = null
     private var mmsSizeDialog: AlertDialog? = null
 
-    override fun onCreate(savedInstanceState: Bundle?) {
+    init {
         appComponent.inject(this)
+    }
+
+    override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.settings_activity)
         setTitle(R.string.title_settings)
-        supportActionBar?.setDisplayHomeAsUpEnabled(true)
+        showBackButton(true)
         viewModel.bindView(this)
 
         nightModeAdapter.setData(R.array.night_modes)

presentation/src/main/java/feature/themepicker/ThemePickerActivity.kt

@@ -56,7 +56,7 @@ class ThemePickerActivity : QkThemedActivity<ThemePickerViewModel>(), ThemePicke
         super.onCreate(savedInstanceState)
         setContentView(R.layout.theme_picker_activity)
         setTitle(R.string.title_theme)
-        supportActionBar?.setDisplayHomeAsUpEnabled(true)
+        showBackButton(true)
         viewModel.bindView(this)
 
         pager.offscreenPageLimit = 1