diff --git a/app/src/main/res/layout/activity_album_detail.xml b/app/src/main/res/layout/activity_album_detail.xml
index 8175928a..e5a0d138 100644
--- a/app/src/main/res/layout/activity_album_detail.xml
+++ b/app/src/main/res/layout/activity_album_detail.xml
@@ -105,7 +105,7 @@
                             android:layout_marginEnd="8dp"
                             android:layout_marginStart="0dp"
                             app:srcCompat="@drawable/ic_music_note_white_24dp"
-                            tools:ignore="ContentDescription,UnusedAttribute" />
+                            tools:ignore="ContentDescription" />
 
                         <TextView
                             android:id="@+id/song_count_text"
@@ -131,7 +131,7 @@
                             android:layout_marginEnd="8dp"
                             android:layout_marginStart="0dp"
                             app:srcCompat="@drawable/ic_timer_white_24dp"
-                            tools:ignore="ContentDescription,UnusedAttribute" />
+                            tools:ignore="ContentDescription" />
 
                         <TextView
                             android:id="@+id/duration_text"
@@ -157,7 +157,7 @@
                             android:layout_marginEnd="8dp"
                             android:layout_marginStart="0dp"
                             app:srcCompat="@drawable/ic_event_white_24dp"
-                            tools:ignore="ContentDescription,UnusedAttribute" />
+                            tools:ignore="ContentDescription" />
 
                         <TextView
                             android:id="@+id/album_year_text"
diff --git a/app/src/main/res/layout/card_about_app.xml b/app/src/main/res/layout/card_about_app.xml
index a53ba8f7..c346ac34 100644
--- a/app/src/main/res/layout/card_about_app.xml
+++ b/app/src/main/res/layout/card_about_app.xml
@@ -75,9 +75,8 @@
                     android:id="@+id/app_version"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
-                    android:text="0.0.0"
                     android:textAppearance="@style/TextAppearance.AppCompat.Caption"
-                    tools:ignore="HardcodedText" />
+                    tools:text="1.0.0" />
 
             </LinearLayout>
 
diff --git a/app/src/main/res/layout/card_support_development.xml b/app/src/main/res/layout/card_support_development.xml
index 3b1750f2..bd258c43 100644
--- a/app/src/main/res/layout/card_support_development.xml
+++ b/app/src/main/res/layout/card_support_development.xml
@@ -32,6 +32,7 @@
             android:layout_height="wrap_content"
             android:background="?attr/rectSelector"
             android:clickable="true"
+            android:focusable="true"
             android:gravity="center_vertical"
             android:minHeight="@dimen/md_listitem_height"
             android:orientation="horizontal"
@@ -88,7 +89,7 @@
                 android:layout_width="24dp"
                 android:layout_height="24dp"
                 app:srcCompat="@drawable/ic_flag_white_24dp"
-                tools:ignore="ContentDescription,UnusedAttribute" />
+                tools:ignore="ContentDescription" />
 
             <LinearLayout
                 android:layout_width="match_parent"
@@ -133,7 +134,7 @@
                 android:layout_width="24dp"
                 android:layout_height="24dp"
                 app:srcCompat="@drawable/ic_star_white_24dp"
-                tools:ignore="ContentDescription,UnusedAttribute" />
+                tools:ignore="ContentDescription" />
 
             <LinearLayout
                 android:layout_width="match_parent"
@@ -178,7 +179,7 @@
                 android:layout_width="24dp"
                 android:layout_height="24dp"
                 app:srcCompat="@drawable/ic_card_giftcard_white_24dp"
-                tools:ignore="ContentDescription,UnusedAttribute" />
+                tools:ignore="ContentDescription" />
 
             <LinearLayout
                 android:layout_width="match_parent"
diff --git a/app/src/main/res/layout/dialog_file_details.xml b/app/src/main/res/layout/dialog_file_details.xml
index f1990944..c1e453fe 100644
--- a/app/src/main/res/layout/dialog_file_details.xml
+++ b/app/src/main/res/layout/dialog_file_details.xml
@@ -1,10 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
-    android:orientation="vertical"
-    tools:ignore="NewApi,RtlSymmetry">
+    android:orientation="vertical">
 
     <TextView
         android:id="@+id/file_path"
diff --git a/app/src/main/res/layout/fragment_album_cover.xml b/app/src/main/res/layout/fragment_album_cover.xml
index d5ea2c41..d62ac9f2 100644
--- a/app/src/main/res/layout/fragment_album_cover.xml
+++ b/app/src/main/res/layout/fragment_album_cover.xml
@@ -13,6 +13,6 @@
         android:layout_height="match_parent"
         android:scaleType="centerCrop"
         app:srcCompat="@drawable/default_album_art"
-        tools:ignore="ContentDescription,UnusedAttribute" />
+        tools:ignore="ContentDescription" />
 
 </FrameLayout>
diff --git a/app/src/main/res/layout/fragment_card_player_playback_controls.xml b/app/src/main/res/layout/fragment_card_player_playback_controls.xml
index d8887091..f11f61c2 100644
--- a/app/src/main/res/layout/fragment_card_player_playback_controls.xml
+++ b/app/src/main/res/layout/fragment_card_player_playback_controls.xml
@@ -47,8 +47,7 @@
             style="@style/MusicProgressSlider"
             android:layout_height="match_parent"
             android:layout_toStartOf="@id/player_song_total_time"
-            android:layout_toEndOf="@id/player_song_current_progress"
-            tools:ignore="RtlHardcoded" />
+            android:layout_toEndOf="@id/player_song_current_progress" />
 
     </RelativeLayout>
 
diff --git a/app/src/main/res/layout/fragment_flat_player_playback_controls.xml b/app/src/main/res/layout/fragment_flat_player_playback_controls.xml
index 24fa955a..330debb4 100644
--- a/app/src/main/res/layout/fragment_flat_player_playback_controls.xml
+++ b/app/src/main/res/layout/fragment_flat_player_playback_controls.xml
@@ -18,13 +18,13 @@
             android:layout_height="match_parent"
             android:layout_alignParentStart="true"
             android:fontFamily="sans-serif-medium"
-            android:gravity="center_vertical|left|end"
-            android:paddingLeft="8dp"
+            android:gravity="center_vertical|start"
+            android:paddingStart="8dp"
             android:singleLine="true"
             android:textAppearance="@style/TextAppearance.AppCompat.Title"
             android:textColor="@color/ate_primary_text_dark"
             android:textSize="12sp"
-            tools:ignore="RtlHardcoded,RtlSymmetry"
+            tools:ignore="RtlSymmetry"
             tools:text="0:00" />
 
         <TextView
@@ -40,7 +40,7 @@
             android:textColor="@color/ate_primary_text_dark"
             android:textSize="12sp"
             tools:ignore="RtlSymmetry"
-            tools:text="3:14" />
+            tools:text="4:00" />
 
         <SeekBar
             android:id="@+id/player_progress_slider"
@@ -56,7 +56,7 @@
         android:layout_width="match_parent"
         android:layout_height="@dimen/media_controller_container_height"
         android:layoutDirection="ltr"
-        tools:ignore="ContentDescription,UnusedAttribute">
+        tools:ignore="ContentDescription">
 
         <ImageButton
             android:id="@+id/player_prev_button"
@@ -68,8 +68,7 @@
             android:background="?attr/roundSelector"
             android:padding="22dp"
             android:scaleType="fitCenter"
-            app:srcCompat="@drawable/ic_skip_previous_white_24dp"
-            tools:ignore="MissingPrefix" />
+            app:srcCompat="@drawable/ic_skip_previous_white_24dp" />
 
         <ImageButton
             android:id="@+id/player_next_button"
@@ -81,8 +80,7 @@
             android:background="?attr/roundSelector"
             android:padding="22dp"
             android:scaleType="fitCenter"
-            app:srcCompat="@drawable/ic_skip_next_white_24dp"
-            tools:ignore="MissingPrefix" />
+            app:srcCompat="@drawable/ic_skip_next_white_24dp" />
 
         <ImageButton
             android:id="@+id/player_repeat_button"
@@ -94,8 +92,7 @@
             android:background="?attr/roundSelector"
             android:padding="22dp"
             android:scaleType="fitCenter"
-            app:srcCompat="@drawable/ic_repeat_white_24dp"
-            tools:ignore="MissingPrefix" />
+            app:srcCompat="@drawable/ic_repeat_white_24dp" />
 
         <ImageButton
             android:id="@+id/player_shuffle_button"
@@ -107,8 +104,7 @@
             android:background="?attr/roundSelector"
             android:padding="22dp"
             android:scaleType="fitCenter"
-            app:srcCompat="@drawable/ic_shuffle_white_24dp"
-            tools:ignore="MissingPrefix" />
+            app:srcCompat="@drawable/ic_shuffle_white_24dp" />
 
         <ImageButton
             android:id="@+id/player_play_pause__button"
@@ -118,7 +114,6 @@
             android:background="?attr/roundSelector"
             android:padding="22dp"
             android:scaleType="fitCenter"
-            tools:ignore="MissingPrefix"
             tools:src="@drawable/ic_pause_white_24dp" />
 
     </RelativeLayout>
diff --git a/app/src/main/res/menu/menu_main.xml b/app/src/main/res/menu/menu_main.xml
index a0c3a120..65f0f38b 100644
--- a/app/src/main/res/menu/menu_main.xml
+++ b/app/src/main/res/menu/menu_main.xml
@@ -21,8 +21,7 @@
         <menu>
             <group
                 android:id="@+id/group_grid_size"
-                android:checkableBehavior="single"
-                tools:ignore="HardcodedText">
+                android:checkableBehavior="single">
                 <item
                     android:id="@+id/action_grid_size_1"
                     android:title="@string/grid_size_1" />