use native selectableItemBackground

app/ui/src/main/res/drawable/selectable_item_background.xml

@@ -1,22 +0,0 @@
-<!--
-  Copyright 2012 Roman Nurik
-
-  Licensed under the Apache License, Version 2.0 (the "License");
-  you may not use this file except in compliance with the License.
-  You may obtain a copy of the License at
-
-      http://www.apache.org/licenses/LICENSE-2.0
-
-  Unless required by applicable law or agreed to in writing, software
-  distributed under the License is distributed on an "AS IS" BASIS,
-  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  See the License for the specific language governing permissions and
-  limitations under the License.
-  -->
-
-<selector xmlns:android="http://schemas.android.com/apk/res/android">
-    <item android:drawable="@drawable/item_pressed" android:state_pressed="true" />
-    <item android:drawable="@drawable/item_focused" android:state_focused="true" />
-    <item android:drawable="@drawable/item_focused" android:state_selected="true" />
-    <item android:drawable="@android:color/transparent" />
-</selector>

app/ui/src/main/res/layout/account_list_item.xml

@@ -3,7 +3,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
-    android:background="?android:attr/selectableItemBackground"
+    android:background="?selectableItemBackground"
     android:clickable="true"
     android:focusable="true"
     android:gravity="center_vertical"

app/ui/src/main/res/layout/accounts_item.xml

@@ -68,7 +68,7 @@
                 android:focusable="false"
                 android:layout_marginRight="3dip"
                 android:src="?attr/iconFolder"
-                android:background="?android:attr/selectableItemBackground"
+                android:background="?selectableItemBackground"
                 android:layout_width="wrap_content"
                 android:layout_height="fill_parent"
                 android:padding="8dp"

app/ui/src/main/res/layout/client_certificate_spinner.xml

@@ -14,7 +14,7 @@
         android:id="@+id/client_certificate_spinner_delete"
         android:layout_width="wrap_content"
         android:layout_height="match_parent"
-        android:background="?android:attr/selectableItemBackground"
+        android:background="?selectableItemBackground"
         android:contentDescription="@string/client_certificate_spinner_delete"
         android:padding="8dp"
         android:src="?attr/iconActionCancel" />

app/ui/src/main/res/layout/message_crypto_status_view.xml

@@ -7,7 +7,7 @@
     android:layout_height="32dp"
     android:visibility="gone"
     custom:previewInitialChild="0"
-    android:background="@drawable/selectable_item_background"
+    android:background="?selectableItemBackground"
     tools:showIn="@layout/message_view_header"
     tools:visibility="visible">
 

app/ui/src/main/res/layout/text_icon_list_item.xml

@@ -4,7 +4,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
-    android:background="?android:attr/selectableItemBackground"
+    android:background="?selectableItemBackground"
     android:clickable="true"
     android:focusable="true"
     android:gravity="center_vertical"

app/ui/src/main/res/layout/wizard_cancel.xml

@@ -19,7 +19,7 @@
             android:layout_width="0dp"
             android:layout_height="wrap_content"
             android:layout_weight="1"
-            android:background="@drawable/selectable_item_background"
+            android:background="?selectableItemBackground"
             android:text="@string/cancel_action" />
 
         <View

app/ui/src/main/res/layout/wizard_done.xml

@@ -24,7 +24,7 @@
             android:layout_width="0dp"
             android:layout_height="wrap_content"
             android:layout_weight="1"
-            android:background="@drawable/selectable_item_background"
+            android:background="?selectableItemBackground"
             android:text="@string/done_action" />
     </LinearLayout>
 

app/ui/src/main/res/layout/wizard_next.xml

@@ -24,7 +24,7 @@
             android:layout_width="0dp"
             android:layout_height="wrap_content"
             android:layout_weight="1"
-            android:background="@drawable/selectable_item_background"
+            android:background="?selectableItemBackground"
             android:text="@string/next_action" />
     </LinearLayout>
 

app/ui/src/main/res/layout/wizard_setup.xml

@@ -19,7 +19,7 @@
             android:layout_width="0dp"
             android:layout_height="match_parent"
             android:layout_weight="1"
-            android:background="@drawable/selectable_item_background"
+            android:background="?selectableItemBackground"
             android:text="@string/account_setup_basics_manual_setup_action" />
 
         <Button
@@ -28,7 +28,7 @@
             android:layout_width="0dp"
             android:layout_height="match_parent"
             android:layout_weight="1"
-            android:background="@drawable/selectable_item_background"
+            android:background="?selectableItemBackground"
             android:text="@string/next_action" />
     </LinearLayout>
 

app/ui/src/main/res/layout/wizard_welcome.xml

@@ -19,7 +19,7 @@
             android:layout_width="0dp"
             android:layout_height="match_parent"
             android:layout_weight="1"
-            android:background="@drawable/selectable_item_background"
+            android:background="?selectableItemBackground"
             android:text="@string/settings_import" />
 
         <Button
@@ -28,7 +28,7 @@
             android:layout_width="0dp"
             android:layout_height="match_parent"
             android:layout_weight="1"
-            android:background="@drawable/selectable_item_background"
+            android:background="?selectableItemBackground"
             android:text="@string/next_action" />
     </LinearLayout>