Android Tutorial - Android Development Guru

activity_main.xml <?xml version="1.0" encoding="utf-8"?> <android.support.v4.widget.DrawerLayout     xmlns:android="http://schemas.android.com/apk/res/android"     xmlns:tools="http://schemas.android.com/tools"     android:id="@+id/drawer_layout"     android:layout_width="match_parent"     android:layout_height="match_parent"     tools:context="com.example.johnwick.navigation_drawer.MainActivity">     <FrameLayout         android:id="@+id/content_frame"         android:layout_width="match_parent"         android:layout_height="match_parent"/>     <ListView         android:id="@+id/left_drawer"         android:layout_width="240dp"         android:layout_height="match_parent"         android:layout_gravity="start"   ...