在 iOS10 的 UILocalNotification 中有什么新功能

你可以使用 UILocalNotification,旧的 API 也适用于 iOS10,但我们最好使用 User Notifications 框架中的 API。还有一些新功能,你只能使用 iOS10 User Notifications 框架。

对于更多信息,这也发生在远程通知中: 此处

新功能:

  1. 现在,你可以使用 iOS 10 在应用程序处于前台时呈现警报,声音或增加徽章
  2. 现在,当用户点击(或滑动)操作按钮时,你可以在一个地方处理所有事件,即使应用程序已被杀死也是如此。
  3. 支持 3D 触摸而不是滑动手势。
  4. 现在,你只需一行代码即可删除特定的本地通知。
  5. 通过自定义 UI 支持 Rich Notification。

我们很容易将 UILocalNotification API 转换为 iOS10 用户通知框架 API,它们非常相似。

我在这里写了一个 Demo 来展示如何同时使用新旧 API: iOS10AdaptationTips

例如,

使用 Swift 实现:

  1. 导入 UserNotifications
    ///    Notification become independent from UIKit
    import UserNotifications
  1. 请求 localNotification 的授权

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

  3. 更新应用程序图标徽章编号

    @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 five 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 实施:

  1. 导入 UserNotifications
    // Notifications are independent from UIKit
    #import <UserNotifications/UserNotifications.h>
  1. 请求 localNotification 的授权

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

  3. 更新应用程序图标徽章编号

    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!");
        }
    }];
    

转到此处获取更多信息: iOS10AdaptationTips

#更新

因未捕获的异常’NSInternalInconsistencyException’而终止应用程序,原因:‘重复时间间隔必须至少为 60’

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