Android NavigationDrawer transparency

Question

I’ve implemented NavigationDrawer with android-support-v4 as per this tutorial

My result is on this screenshot.

The question is how to remove or configure these transparency on Drawer which looks awful with background text.

UPDATE: here is my layout configuration, with background been set to dark

<android.support.v4.widget.DrawerLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:id="@+id/drawer_layout"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        >

    <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"
            android:choiceMode="singleChoice"
            android:divider="@android:color/transparent"
            android:dividerHeight="0dp"
            android:background="#111111"/>
</android.support.v4.widget.DrawerLayout>

Answer 1

You need to add alpha to your ListView. Use your XML and extend the ListView definition with alpha-attribute.

<ListView
     android:id="@+id/left_drawer"
     android:layout_width="240dp"
     android:layout_height="match_parent"
     android:layout_gravity="start"
     android:choiceMode="singleChoice"
     android:divider="@android:color/transparent"
     android:dividerHeight="0dp"
     android:background="#111111"
     android:alpha="255"
/>