Android set status bar light

WindowExt.kt

@TargetApi(Build.VERSION_CODES.M)
fun Window.setLightStatusBar(light: Boolean) {
    var flags = decorView.systemUiVisibility

    if (light && (flags and View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR == View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR)) {
        return
    } else if (!light && (flags and View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR) != View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR) {
        return
    }

    val colorRes = if (light) {
        flags = flags or View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR
        R.color.statusBarLight
    } else {
        flags = flags xor View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR
        R.color.primaryDark
    }

    decorView.systemUiVisibility = flags
    statusBarColor = ContextCompat.getColor(context, colorRes)
}