public void setStatusBarBackground(int resId) {
        mStatusBarBackground = resId != 0 ? ContextCompat.getDrawable(getContext(), resId) : null;
        invalidate();
    }
Set a drawable to draw in the insets area for the status bar.
Note that this will only be activated if this HomeDrawerLayout fitsSystemWindows.

@param resId Resource id of a background drawable to draw behind the status bar
app/src/main/java/com/sunnyweather/android/ui/customerUIs/HomeDrawerLayout.java