Refactoring in layouts

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

 <?xml version="1.0" encoding="utf-8"?>
-<android.support.v4.widget.DrawerLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
+<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:id="@+id/drawerLayout"
@@ -8,11 +7,34 @@
     android:layout_height="match_parent"
     tools:openDrawer="start">
 
-    <fragment
+    <include layout="@layout/img_background" />
+
+    <LinearLayout
         android:layout_width="match_parent"
         android:layout_height="match_parent"
+        android:orientation="vertical">
+
+        <fragment
+            android:id="@+id/fragment_new_word"
+            android:name="com.paktalin.vocabularynotebook.NewWordFragment"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginEnd="8dp"
+            android:layout_marginLeft="8dp"
+            android:layout_marginRight="8dp"
+            android:layout_marginStart="8dp"
+            android:layout_marginTop="8dp"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent" />
+
+        <fragment
+            android:id="@+id/fragment_vocabulary"
             android:name="com.paktalin.vocabularynotebook.activities.VocabularyFragment"
-        android:id="@+id/fragment_vocabulary" />
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content" />
+
+    </LinearLayout>
 
     <android.support.design.widget.NavigationView
         android:id="@+id/navigationView"

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

 <?xml version="1.0" encoding="utf-8"?>
-
-<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent">
-
-    <LinearLayout xmlns:tools="http://schemas.android.com/tools"
+    xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
     android:orientation="horizontal">
@@ -16,9 +12,9 @@
         android:layout_height="wrap_content"
         android:layout_weight="8"
         android:background="@android:color/transparent"
+        android:hint="@string/hint_new_word"
         android:inputType="text"
         android:textSize="22sp"
-            android:hint="@string/hint_new_word"
         tools:ignore="LabelFor" />
 
     <EditText
@@ -27,9 +23,9 @@
         android:layout_height="wrap_content"
         android:layout_weight="8"
         android:background="@android:color/transparent"
+        android:hint="@string/hint_translation"
         android:inputType="text"
         android:textSize="22sp"
-            android:hint="@string/hint_translation"
         tools:ignore="LabelFor" />
 
     <ImageButton
@@ -41,6 +37,4 @@
         app:srcCompat="@drawable/ic_cancel_icon"
         tools:ignore="ContentDescription" />
 
-    </LinearLayout>
-
-</android.support.constraint.ConstraintLayout>
+</LinearLayout>
\ No newline at end of file

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

 <?xml version="1.0" encoding="utf-8"?>
-<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
-    android:layout_height="match_parent"
+    android:layout_height="wrap_content"
     app:layout_behavior="@string/appbar_scrolling_view_behavior"
     tools:context="com.paktalin.vocabularynotebook.activities.VocabularyFragment">
 
-    <include layout="@layout/img_background" />
-
-    <fragment
-        android:id="@+id/fragment"
-        android:name="com.paktalin.vocabularynotebook.NewWordFragment"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_marginEnd="8dp"
-        android:layout_marginLeft="8dp"
-        android:layout_marginRight="8dp"
-        android:layout_marginStart="8dp"
-        android:layout_marginTop="8dp"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
-
     <android.support.v7.widget.RecyclerView
         android:id="@+id/recyclerView"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:layout_marginEnd="8dp"
-        android:layout_marginLeft="8dp"
-        android:layout_marginRight="8dp"
-        android:layout_marginStart="8dp"
-        android:layout_marginTop="8dp"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/fragment" />
+        android:layout_margin="8dp" />
 
-</android.support.constraint.ConstraintLayout>
+</FrameLayout>