ContextCompat.kt

fun Context.createNotificationSettingsIntent() =
    when {
        Build.VERSION.SDK_INT >= Build.VERSION_CODES.O -> {
            Intent(Settings.ACTION_APP_NOTIFICATION_SETTINGS).apply {
                putExtra(Settings.EXTRA_APP_PACKAGE, packageName)
            }
        }
        Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP -> {
            Intent().apply {
                action = "android.settings.APP_NOTIFICATION_SETTINGS"
                putExtra("app_package", packageName)
                putExtra("app_uid", applicationInfo.uid)
            }
        }
        else -> {
            Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS).apply {
                data = Uri.parse("package:$packageName")
            }
        }
    }