Fix lyrics loading crashing

app/src/main/java/code/name/monkey/retromusic/activities/ArtistDetailActivity.kt

@@ -184,7 +184,8 @@ class ArtistDetailActivity : AbsSlidingMusicPanelActivity(), ArtistDetailsView,
     }
 
     private fun loadBiography(
-            name: String, lang: String? = Locale.getDefault().language
+            name: String,
+            lang: String? = Locale.getDefault().language
     ) {
         biography = null
         this.lang = lang

app/src/main/java/code/name/monkey/retromusic/activities/GenreDetailsActivity.kt

@@ -19,6 +19,7 @@ import code.name.monkey.retromusic.model.Genre
 import code.name.monkey.retromusic.model.Song
 import code.name.monkey.retromusic.mvp.presenter.GenreDetailsPresenter
 import code.name.monkey.retromusic.mvp.presenter.GenreDetailsView
+import code.name.monkey.retromusic.util.DensityUtil
 import code.name.monkey.retromusic.util.RetroColorUtil
 import code.name.monkey.retromusic.util.ViewUtil
 import com.afollestad.materialcab.MaterialCab
@@ -44,10 +45,16 @@ class GenreDetailsActivity : AbsSlidingMusicPanelActivity(), CabHolder, GenreDet
     }
 
     private fun checkIsEmpty() {
+        checkForPadding()
         emptyEmoji.text = getEmojiByUnicode(0x1F631)
         empty?.visibility = if (songAdapter.itemCount == 0) View.VISIBLE else View.GONE
     }
 
+    private fun checkForPadding() {
+        val height = DensityUtil.dip2px(this, 52f)
+        recyclerView.setPadding(0, 0, 0, (height))
+    }
+
     override fun onCreate(savedInstanceState: Bundle?) {
         setDrawUnderStatusBar()
         super.onCreate(savedInstanceState)
@@ -127,7 +134,7 @@ class GenreDetailsActivity : AbsSlidingMusicPanelActivity(), CabHolder, GenreDet
     }
 
     override fun openCab(menuRes: Int, callback: MaterialCab.Callback): MaterialCab {
-        if (cab != null && cab!!.isActive) cab!!.finish()
+        if (cab != null && cab!!.isActive) cab?.finish()
         cab = MaterialCab(this, R.id.cab_stub).setMenu(menuRes).setCloseDrawableRes(R.drawable.ic_close_white_24dp).setBackgroundColor(RetroColorUtil.shiftBackgroundColorForLightText(ATHUtil.resolveColor(this, R.attr.colorSurface))).start(callback)
         return cab!!
     }

app/src/main/java/code/name/monkey/retromusic/activities/LyricsActivity.kt

@@ -106,7 +106,7 @@ class LyricsActivity : AbsMusicServiceActivity(), View.OnClickListener, ViewPage
         toolbar.setBackgroundColor(toolbarColor)
         tabs.setBackgroundColor(toolbarColor)
         ToolbarContentTintHelper.colorBackButton(toolbar)
-
+        setSupportActionBar(toolbar)
         tabs.setupWithViewPager(viewPager)
         tabs.setSelectedTabIndicator(TintHelper.createTintedDrawable(ContextCompat.getDrawable(this, R.drawable.tab_indicator), ThemeStore.accentColor(this)))
         tabs.setTabTextColors(ATHUtil.resolveColor(this, android.R.attr.textColorSecondary), ThemeStore.accentColor(this))
@@ -137,7 +137,8 @@ class LyricsActivity : AbsMusicServiceActivity(), View.OnClickListener, ViewPage
 
     override fun onOptionsItemSelected(item: MenuItem): Boolean {
         if (item.itemId == android.R.id.home) {
-            onBackPressed()
+            finish()
+            return true
         }
         return super.onOptionsItemSelected(item)
     }

app/src/main/res/layout/activity_playlist_detail.xml

@@ -17,6 +17,7 @@
 
     <androidx.coordinatorlayout.widget.CoordinatorLayout
         android:layout_width="match_parent"
+        android:id="@+id/container"
         android:layout_height="match_parent">
 
         <com.google.android.material.appbar.AppBarLayout