ios - UILocalNotification 在 iOS 10 中被弃用

Question

这可能是一个提前的问题，但我想知道在 iOS 10 中使用什么代替 UILocalNotification。我正在开发一个部署目标为 iOS 8 的应用程序，所以可以使用 UILocalNotification?

Answer 1

是的，您可以使用 UILocalNotification，旧的 API 也适用于 iOS 10，但我们最好改用 User Notifications 框架中的 API。还有一些新功能，您只能与 iOS 10 用户通知框架一起使用。

这也发生在远程通知上，有关更多信息:Here .

新功能:

• 现在您也可以在 iOS 10 的应用程序处于前台时显示提醒、声音或增加角标(Badge)
• 现在您可以在用户点击(或滑动)操作按钮时在一个地方处理所有事件，即使应用已被终止。
• 支持 3D 触摸而不是滑动手势。
• 现在您只需一行代码即可删除特定的本地通知。
• 通过自定义 UI 支持富通知。

我们很容易将 UILocalNotification API 转换为 iOS 10用户通知框架 API，它们非常相似。

我在这里写了一个演示来展示如何同时使用新旧API:iOS 10 Adaptation Tips .

例如，

使用 Swift 实现:

1. 导入用户通知

   ///    Notification become independent from UIKit
   import UserNotifications
   

2. 请求本地通知授权

       let center = UNUserNotificationCenter.current()
       center.requestAuthorization(options: [.alert, .sound]) { (granted, error) in
           // Enable or disable features based on authorization.
       }
   

3. 安排本地通知

4. 更新应用程序图标角标(Badge)编号

   @IBAction  func triggerNotification(){
       let content = UNMutableNotificationContent()
       content.title = NSString.localizedUserNotificationString(forKey: "Elon said:", arguments: nil)
       content.body = NSString.localizedUserNotificationString(forKey: "Hello Tom！Get up, let's play with Jerry!", arguments: nil)
       content.sound = UNNotificationSound.default()
       content.badge = UIApplication.shared().applicationIconBadgeNumber + 1;
       content.categoryIdentifier = "com.elonchan.localNotification"
       // Deliver the notification in 60 seconds.
       let trigger = UNTimeIntervalNotificationTrigger.init(timeInterval: 60.0, repeats: true)
       let request = UNNotificationRequest.init(identifier: "FiveSecond", content: content, trigger: trigger)
   
       // Schedule the notification.
       let center = UNUserNotificationCenter.current()
       center.add(request)
   }
   
   @IBAction func stopNotification(_ sender: AnyObject) {
       let center = UNUserNotificationCenter.current()
       center.removeAllPendingNotificationRequests()
       // or you can remove specifical notification:
       // center.removePendingNotificationRequests(withIdentifiers: ["FiveSecond"])
   }
   

Objective-C 实现:

1. 导入用户通知

   // Notifications are independent from UIKit
   #import <UserNotifications/UserNotifications.h>
   

2. 请求本地通知授权

   UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
   [center requestAuthorizationWithOptions:(UNAuthorizationOptionBadge | UNAuthorizationOptionSound | UNAuthorizationOptionAlert)
                         completionHandler:^(BOOL granted, NSError * _Nullable error) {
                             if (!error) {
                                 NSLog(@"request authorization succeeded!");
                                 [self showAlert];
                             }
                         }];
   

3. 安排本地通知

4. 更新应用程序图标角标(Badge)编号

   UNMutableNotificationContent *content = [[UNMutableNotificationContent alloc] init];
   content.title = [NSString localizedUserNotificationStringForKey:@"Elon said:"
                                                       arguments:nil];
   content.body = [NSString localizedUserNotificationStringForKey:@"Hello Tom！Get up, let's play with Jerry!"
                                                      arguments:nil];
   content.sound = [UNNotificationSound defaultSound];
   
   // 4. update application icon badge number
   content.badge = [NSNumber numberWithInteger:([UIApplication sharedApplication].applicationIconBadgeNumber + 1)];
   // Deliver the notification in five seconds.
   UNTimeIntervalNotificationTrigger *trigger = [UNTimeIntervalNotificationTrigger
                                               triggerWithTimeInterval:5.f
                                               repeats:NO];
   UNNotificationRequest *request = [UNNotificationRequest requestWithIdentifier:@"FiveSecond"
                                                                       content:content
                                                                       trigger:trigger];
   /// 3. schedule localNotification
   UNUserNotificationCenter *center = [UNUserNotificationCenter currentNotificationCenter];
   [center addNotificationRequest:request withCompletionHandler:^(NSError * _Nullable error) {
       if (!error) {
           NSLog(@"add NotificationRequest succeeded!");
       }
   }];
   

已更新

Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'time interval must be at least 60 if repeating'

let trigger = UNTimeIntervalNotificationTrigger.init(timeInterval: 60, repeats: true)