ios9 接收重复推送通知

标题：解决iOS9接收重复推送通知的问题

swift
// Swift
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
    // 清除推送通知
    application.registerUserNotificationSettings(UIUserNotificationSettings())
    
    // 其他应用启动代码
    // ...
    
    return true
}
// Objective-C
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    // 清除推送通知
    [application registerUserNotificationSettings:[UIUserNotificationSettings new]];
    
    // 其他应用启动代码
    // ...
    
    return YES;
}

swift
// Swift
func application(application: UIApplication, didReceiveRemoteNotification userInfo: [NSObject : AnyObject]) {
    // 处理推送通知
    let scheduledNotifications = application.scheduledLocalNotifications ?? []
    for notification in scheduledNotifications {
        if let pushInfo = notification.userInfo as? [String: AnyObject], let pushIdentifier = pushInfo["identifier"] as? String,
            let receivedIdentifier = userInfo["identifier"] as? String, pushIdentifier == receivedIdentifier {
            // 重复的推送通知，进行处理
            // ...
            return
        }
    }
    
    // 非重复的推送通知，进行处理
    // ...
}
// Objective-C
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo {
    // 处理推送通知
    NSArray *scheduledNotifications = application.scheduledLocalNotifications ?: @[];
    for (UILocalNotification *notification in scheduledNotifications) {
        NSDictionary *pushInfo = notification.userInfo;
        NSString *pushIdentifier = pushInfo[@"identifier"];
        NSString *receivedIdentifier = userInfo[@"identifier"];
        if ([pushIdentifier isEqualToString:receivedIdentifier]) {
            // 重复的推送通知，进行处理
            // ...
            return;
        }
    }
    
    // 非重复的推送通知，进行处理
    // ...
}