ios - 未确定推送通知

Question

在 ios 10 中有UNUserNotificationCenter类和方法getNotificationSettingsWithCompletionHandler可以为您提供UNNotificationSettings对象，您可以检查用户是否曾被要求提供推送通知权限。iOS 9 和 iOS 8 有没有办法实现这一点。

Answer 1

你可以使用这样的东西：

let notificationType = UIApplication.sharedApplication().currentUserNotificationSettings()!.types

if notificationType == UIUserNotificationType.None {
  // Push notifications are disabled in setting by user.
} else {
 // Push notifications are enabled in setting by user.
}

if notificationType != UIUserNotificationType.None {
  // Push notifications are enabled in setting by user.
}

if notificationType == UIUserNotificationType.Badge {
  // the application may badge its icon upon a notification being received
}

if notificationType == UIUserNotificationType.Sound {
  // the application may play a sound upon a notification being received
}

if notificationType == UIUserNotificationType.Alert {
  // the application may display an alert upon a notification being received
}

Answer 2

没有办法。该功能从 ios 10 开始可用。