iOS请求通知、获取通知状态、跳转到设置页面的实现

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iOS 使用 UNUserNotificationCenter 类去管理通知相关的活动

请求通知

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let center = UNUserNotificationCenter.current()
center.requestAuthorization(options: [.alert, .badge, .sound]) { (result, error) in
  self.showAlertDialog(title: "request notification", message: result.description)
}

获取通知状态

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let center = UNUserNotificationCenter.current()
center.getNotificationSettings { (settings) in
    switch (settings.authorizationStatus) {
    case .authorized:
        self.showAlertDialog(title: "notification state", message: "authorized")
    case .denied:
        self.showAlertDialog(title: "notification state", message: "denied")
    case .notDetermined:
        self.showAlertDialog(title: "notification state", message: "not determined")
    default:
        self.showAlertDialog(title: "notification state", message: "unknown")
    }
}

跳转到设置页面

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let application = UIApplication.shared
let url = URL.init(string: UIApplication.openSettingsURLString)!
if (application.canOpenURL(url)) {
    application.open(url, options: [:], completionHandler: nil)
}