Making status bar transparent

    <item name="android:windowTranslucentStatus">true</item>

<item name="android:windowDrawsSystemBarBackgrounds">true</item>

and 

android:fitsSystemWindows="true"

or programmatically

 Window window = getWindow();
            window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
            window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);


or better

    getWindow().getDecorView().setSystemUiVisibility(
                View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN |
                        View.SYSTEM_UI_FLAG_LAYOUT_STABLE);
//Status bar color, set to whatever opacity/color you want

        getWindow().setStatusBarColor(Color.TRANSPARENT);