update commons to 3.15.11

app/build.gradle

@@ -45,7 +45,7 @@ ext {
 }
 
 dependencies {
-    implementation 'com.simplemobiletools:commons:3.13.15'
+    implementation 'com.simplemobiletools:commons:3.15.11'
     implementation 'com.squareup:otto:1.3.8'
     implementation 'com.facebook.stetho:stetho:1.5.0'
 

app/src/main/kotlin/com/simplemobiletools/musicplayer/activities/MainActivity.kt

@@ -24,7 +24,10 @@ import com.bumptech.glide.request.target.Target
 import com.simplemobiletools.commons.dialogs.FilePickerDialog
 import com.simplemobiletools.commons.dialogs.RadioGroupDialog
 import com.simplemobiletools.commons.extensions.*
-import com.simplemobiletools.commons.helpers.*
+import com.simplemobiletools.commons.helpers.LICENSE_MULTISELECT
+import com.simplemobiletools.commons.helpers.LICENSE_OTTO
+import com.simplemobiletools.commons.helpers.LICENSE_STETHO
+import com.simplemobiletools.commons.helpers.PERMISSION_WRITE_STORAGE
 import com.simplemobiletools.commons.interfaces.RecyclerScrollCallback
 import com.simplemobiletools.commons.models.FAQItem
 import com.simplemobiletools.commons.models.FileDirItem
@@ -279,11 +282,11 @@ class MainActivity : SimpleActivity(), SongListListener {
     private fun launchAbout() {
         val faqItems = arrayListOf(
                 FAQItem(R.string.faq_1_title_commons, R.string.faq_1_text_commons),
-                FAQItem(R.string.faq_2_title_commons, R.string.faq_2_text_commons),
-                FAQItem(R.string.faq_4_title_commons, R.string.faq_4_text_commons)
+                FAQItem(R.string.faq_4_title_commons, R.string.faq_4_text_commons),
+                FAQItem(R.string.faq_2_title_commons, R.string.faq_2_text_commons)
         )
 
-        startAboutActivity(R.string.app_name, LICENSE_KOTLIN or LICENSE_OTTO or LICENSE_MULTISELECT or LICENSE_STETHO, BuildConfig.VERSION_NAME, faqItems)
+        startAboutActivity(R.string.app_name, LICENSE_OTTO or LICENSE_MULTISELECT or LICENSE_STETHO, BuildConfig.VERSION_NAME, faqItems)
     }
 
     private fun showSortingDialog() {

app/src/main/kotlin/com/simplemobiletools/musicplayer/adapters/PlaylistsAdapter.kt

@@ -30,7 +30,7 @@ class PlaylistsAdapter(activity: SimpleActivity, val playlists: ArrayList<Playli
         view?.playlist_frame?.isSelected = select
     }
 
-    override fun onCreateViewHolder(parent: ViewGroup?, viewType: Int) = createViewHolder(R.layout.item_playlist, parent)
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int) = createViewHolder(R.layout.item_playlist, parent)
 
     override fun onBindViewHolder(holder: MyRecyclerViewAdapter.ViewHolder, position: Int) {
         val playlist = playlists[position]

app/src/main/kotlin/com/simplemobiletools/musicplayer/adapters/SongAdapter.kt

@@ -61,7 +61,7 @@ class SongAdapter(activity: SimpleActivity, var songs: ArrayList<Song>, val list
         view?.song_frame?.isSelected = select
     }
 
-    override fun onCreateViewHolder(parent: ViewGroup?, viewType: Int): ViewHolder {
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
         return when (viewType) {
             VIEW_TYPE_TRANSPARENT -> getTransparentViewHolder()
             VIEW_TYPE_NAVIGATION -> getNavigationViewHolder()

app/src/main/kotlin/com/simplemobiletools/musicplayer/services/MusicService.kt

@@ -19,6 +19,7 @@ import android.support.v4.app.NotificationCompat
 import android.util.Log
 import com.simplemobiletools.commons.extensions.*
 import com.simplemobiletools.commons.helpers.PERMISSION_WRITE_STORAGE
+import com.simplemobiletools.commons.helpers.isOreoPlus
 import com.simplemobiletools.musicplayer.R
 import com.simplemobiletools.musicplayer.activities.MainActivity
 import com.simplemobiletools.musicplayer.extensions.config