如何在 ios 中正确设置推送通知

Question

嗨，我被这个问题困扰了一个多星期。我按照本教程here 在我的应用程序中添加推送通知。在我的应用程序的初始运行中，“应用程序想向您发送推送通知”没有出现。但是，当我转到应用程序通知时，它已经注册了仅针对声音和横幅的通知，并且徽章应用程序图标未打开。 但是当我在我的应用程序中登录时，徽章应用程序图标通知类型不再存在。 （抱歉不能发图）

当我检查我的日志时，我遇到了这个运行时错误：尝试为应用程序图标添加徽章，但未获得用户对应用程序添加徽章的权限

这是我在 AppDelegate.m 中的代码

if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0)
{
    UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeAlert |
                                                                                        UIUserNotificationTypeBadge |
                                                                                        UIUserNotificationTypeSound categories:nil];
    [[UIApplication sharedApplication] registerUserNotificationSettings:settings];
    [[UIApplication sharedApplication] registerForRemoteNotifications];
}
else
{
    [[UIApplication sharedApplication] registerForRemoteNotificationTypes:
     UIRemoteNotificationTypeAlert |
     UIRemoteNotificationTypeBadge |
     UIRemoteNotificationTypeSound];
}

- (void)application:(UIApplication *)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken {
    NSString *hexToken= [[[[deviceToken description]
    stringByReplacingOccurrencesOfString: @"<" withString: @""]
    stringByReplacingOccurrencesOfString: @">" withString: @""]
    stringByReplacingOccurrencesOfString: @" " withString: @""];

    [[NSUserDefaults standardUserDefaults] setObject:hexToken forKey:@"deviceToken"];
    [[NSUserDefaults standardUserDefaults] synchronize];
}

任何帮助将不胜感激。 谢谢。

Answer 1

我刚刚尝试使用下面的方法，它奏效了..

#ifdef __IPHONE_8_0
  //Right, that is the point
    UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:(UIRemoteNotificationTypeBadge
|UIRemoteNotificationTypeSound
|UIRemoteNotificationTypeAlert) categories:nil];
    [[UIApplication sharedApplication] registerUserNotificationSettings:settings];
#else
    //register to receive notifications
    UIRemoteNotificationType myTypes = UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeAlert | UIRemoteNotificationTypeSound;
    [[UIApplication sharedApplication] registerForRemoteNotificationTypes:myTypes];
#endif

为 iOS 8.0 添加以下方法

#ifdef __IPHONE_8_0
- (void)application:(UIApplication *)application didRegisterUserNotificationSettings:(UIUserNotificationSettings *)notificationSettings
{
    //register to receive notifications
    [application registerForRemoteNotifications];
}

- (void)application:(UIApplication *)application handleActionWithIdentifier:(NSString *)identifier forRemoteNotification:(NSDictionary *)userInfo completionHandler:(void(^)())completionHandler
{
    //handle the actions
    if ([identifier isEqualToString:@"declineAction"]){
    }
    else if ([identifier isEqualToString:@"answerAction"]){
    }
}
#endif