Android M Light and Dark status bar programmatically - how to make it dark again?

Question

In the Android M we have ability to make status bar icons dark. To do that we can specify attribute in the theme\'s xml:

Answer 1

/**
 * Changes color of the status bar icons
 * @param isLight if true - shows dark icons, light else
 */
fun setStatusBarUiTheme(activity: Activity?, isLight: Boolean) {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
        activity?.window?.decorView?.let {
            it.systemUiVisibility = if (isLight)
                it.systemUiVisibility or View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR // dark icons
            else
                it.systemUiVisibility and View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR.inv() // light icons
        }
    }
}