我正在使用Swift 3.0，我希望用户能够点击一个按钮来触发请求他允许使用通知的警告框。
我很惊讶没有找到更多相关信息。
我想支持iOS 9.0以及10。
再次触发此“请求许可”警告框的方法是什么？
答案 0 :(得分：5)
import UserNotifications
并在标题
中声明此 UNUserNotificationCenterDelegate 方法 appDelegates中的只需输入以下代码：
func registerForRemoteNotification() {
if #available(iOS 10.0, *) {
let center = UNUserNotificationCenter.current()
center.requestAuthorization(options: [.sound, .alert, .badge]) { (granted, error) in
if error == nil{
UIApplication.shared.registerForRemoteNotifications()
}
}
}
else {
UIApplication.shared.registerUserNotificationSettings(UIUserNotificationSettings(types: [.sound, .alert, .badge], categories: nil))
UIApplication.shared.registerForRemoteNotifications()
}
}
当用户当时授予权限时，您可以通过 didRegisterForRemoteNotificationsWithDeviceToken 代表方法获取用户令牌
func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data) {
let token = deviceToken.map { String(format: "%02.2hhx", $0) }.joined()
print(token)
print(deviceToken.description)
if let uuid = UIDevice.current.identifierForVendor?.uuidString {
print(uuid)
}
UserDefaults.standard.setValue(token, forKey: "ApplicationIdentifier")
UserDefaults.standard.synchronize()
}
答案 1 :(得分：2)
以下是所有方案的完整代码，请查看断点
代码的工作副本，在Appdelegate中复制粘贴。 XCode 9，iOS 11，Swift 4
//
// AppDelegate.swift
// PushNotification
import UIKit
import UserNotifications
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate,UNUserNotificationCenterDelegate {
var window: UIWindow?
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
if #available(iOS 10, *)
{ // iOS 10 support
//create the notificationCenter
let center = UNUserNotificationCenter.current()
center.delegate = self
// set the type as sound or badge
center.requestAuthorization(options: [.sound,.alert,.badge]) { (granted, error) in
if granted {
print("Notification Enable Successfully")
}else{
print("Some Error Occure")
}
}
application.registerForRemoteNotifications()
}
else if #available(iOS 9, *)
{
// iOS 9 support
UIApplication.shared.registerUserNotificationSettings(UIUserNotificationSettings(types: [.badge, .sound, .alert], categories: nil))
UIApplication.shared.registerForRemoteNotifications()
}
else if #available(iOS 8, *)
{
// iOS 8 support
UIApplication.shared.registerUserNotificationSettings(UIUserNotificationSettings(types: [.badge, .sound,
.alert], categories: nil))
UIApplication.shared.registerForRemoteNotifications()
}
else
{ // iOS 7 support
application.registerForRemoteNotifications(matching: [.badge, .sound, .alert])
}
return true
}
//get device token here
func application(_ application: UIApplication, didRegisterForRemoteNotificationsWithDeviceToken
deviceToken: Data)
{
var token = ""
for i in 0..<deviceToken.count {
token = token + String(format: "%02.2hhx", arguments: [deviceToken[i]])
}
print("Registration succeeded!")
print("Token: ", token)
//send tokens to backend server
// storeTokens(token)
}
//get error here
func application(_ application: UIApplication, didFailToRegisterForRemoteNotificationsWithError error:
Error) {
print("Registration failed!")
}
//get Notification Here below ios 10
func application(_ application: UIApplication, didReceiveRemoteNotification data: [AnyHashable : Any]) {
// Print notification payload data
print("Push notification received: \(data)")
}
//This is the two delegate method to get the notification in iOS 10..
//First for foreground
@available(iOS 10.0, *)
func userNotificationCenter(_ center: UNUserNotificationCenter, willPresent notification: UNNotification, withCompletionHandler completionHandler: @escaping (_ options:UNNotificationPresentationOptions) -> Void)
{
print("Handle push from foreground")
// custom code to handle push while app is in the foreground
print("\(notification.request.content.userInfo)")
}
//Second for background and close
@available(iOS 10.0, *)
func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response:UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void)
{
print("Handle push from background or closed")
// if you set a member variable in didReceiveRemoteNotification, you will know if this is from closed or background
print("\(response.notification.request.content.userInfo)")
}
func applicationWillResignActive(_ application: UIApplication) {
// Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
// Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
}
func applicationDidEnterBackground(_ application: UIApplication) {
// Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
// If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
}
func applicationWillEnterForeground(_ application: UIApplication) {
// Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
}
func applicationDidBecomeActive(_ application: UIApplication) {
// Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
}
func applicationWillTerminate(_ application: UIApplication) {
// Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
}
}
答案 2 :(得分：0)
您可以使用UserNotifications框架处理iOS应用的通知。一旦您要求授权系统将自动提示用户提醒。
UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .sound, .badge]) { (success, error) in
if let error = error {
print("Request Authorization Failed (\(error), \(error.localizedDescription))")
}
else{
//Success.. do something on success
}
}
对于iOS 9.0：
private func requestAuthorizationForiOS9AndBelow(){
let notificationSettings = UIUserNotificationSettings(
types: [.badge, .sound, .alert], categories: nil)
UIApplication.shared.registerUserNotificationSettings(notificationSettings)
}
答案 3 :(得分：0)
你可以这样做
AppDelegate方法内的didFinishLaunching
if #available(iOS 10.0, *) {
// For iOS 10 display notification (sent via APNS)
UNUserNotificationCenter.current().delegate = self
let authOptions: UNAuthorizationOptions = [.alert, .badge, .sound]
UNUserNotificationCenter.current().requestAuthorization(options: authOptions, completionHandler: { (granted, error) in
if (granted == true){
}else{
print("request authorisation error: \(error)")
}
})
} else {
let settings: UIUserNotificationSettings =
UIUserNotificationSettings(types: [.alert, .badge, .sound], categories: nil)
application.registerUserNotificationSettings(settings)
}
application.registerForRemoteNotifications()