• 在application:didFinishLaunchingWithOptions:和application:didRegisterUserNotificationSettings:方法中注册通知

-(void)application:(UIApplication*)applicationdidFinishLaunchingWithOptions:(NSDictionary*)launchOptions{    if ([UIDevice currentDevice].systemVersion.doubleValue >= 8.0) {        UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeBadge | UIUserNotificationTypeSound | UIUserNotificationTypeAlert categories:nil];        [[UIApplication sharedApplication] registerUserNotificationSettings:settings];    }    else {        [[UIApplication sharedApplication] registerForRemoteNotificationTypes:UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeSound | UIRemoteNotificationTypeAlert];    }}- (void)application:(UIApplication *)application didRegisterUserNotificationSettings:(UIUserNotificationSettings *)notificationSettings {    [application registerForRemoteNotifications];}

• 拿到deviceToken的回调

- (void)application:(UIApplication *)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken {    NSLog(@"%@", deviceToken);}

• 注册远程通知失败的回调

- (void)application:(UIApplication *)application didFailToRegisterForRemoteNotificationsWithError:(NSError *)error {    NSLog(@"%@", error.localizedDescription);}