Status Bar(Background Image)

출처 : http://stackoverflow.com/questions/34382204/is-it-possible-to-use-not-only-status-bar-but-the-footer-navigation-view-also-fo

values-v19/styles.xml

<style name="FullScreenEffectTheme">
    <!-- StatusBar -->
    <item name="android:statusBarColor">@android:color/transparent</item>
    <!-- NavigationBar -->
    <item name="android:navigationBarColor">@android:color/transparent</item>
</style>

In code set flags:

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
    getWindow().getDecorView().setSystemUiVisibility(
         View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN |
         View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION);
}