Added background image to layouts

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

@@ -5,6 +5,8 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent">
 
+    <include layout="@layout/img_background" />
+
     <TextView
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"

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

@@ -5,6 +5,8 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent">
 
+    <include layout="@layout/img_background"/>
+
     <TextView
         android:id="@+id/tvWord"
         android:layout_width="wrap_content"

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

@@ -7,11 +7,7 @@
     app:layout_behavior="@string/appbar_scrolling_view_behavior"
     tools:context="com.paktalin.vocabularynotebook.activities.VocabularyFragment">
 
-    <ImageView
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:src="@drawable/background_small"
-        android:scaleType="centerCrop"/>
+    <include layout="@layout/img_background"/>
 
     <android.support.v7.widget.RecyclerView
         android:id="@+id/recyclerView"

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

+<?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="match_parent"
+    android:layout_height="match_parent">
+
+    <ImageView
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:src="@drawable/background_small"
+        android:scaleType="centerCrop"
+        tools:ignore="ContentDescription" />
+</LinearLayout>
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