I am creating an app with material design I'm getting this error when I'm implement NavigationView in MainActivity.xml:
java.lang.ClassNotFoundException: android.support.v7.internal.view.menu.MenuBuilder$Callbac
Here my layout file:
<?xml version="1.0" encoding="utf-8"?>
<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/main_activity_DrawerLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context=".MainActivity">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#7C4DFF">
<include
android:id="@+id/app_bar"
layout="@layout/app_bar" />
<FrameLayout
android:id="@+id/frame"
android:layout_width="match_parent"
android:layout_height="match_parent"></FrameLayout>
<TextView
android:id="@+id/text_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerInParent="true"
android:text="@string/Left"
android:textColor="#FFC107" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/text_view"
android:layout_centerInParent="true"
android:text="@string/right"
android:textColor="#FF9800" />
</RelativeLayout>
<ListView
android:id="@+id/left_drawer"
android:layout_width="240dp"
android:layout_height="match_parent"
android:layout_gravity="start"
android:background="#FFC107"></ListView>
<ExpandableListView
android:id="@+id/right_drawer"
android:layout_width="240dp"
android:layout_height="fill_parent"
android:layout_gravity="end"
android:background="#FF9800"/>
<android.support.design.widget.NavigationView
android:id="@+id/navigation_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
app:headerLayout="@layout/navheader"
app:menu="@menu/drawer_item" />
</android.support.v4.widget.DrawerLayout>
