iOS 8使设备在代码更新后不接收PUSH通知

Question

我最近将我的一个测试iphone升级到iOS 8,然后升级了PUSH注册码,如下所示(使用xCode 6)

-(BOOL)hasNotificationsEnabled {

    NSString *iOSversion = [[UIDevice currentDevice] systemVersion];
    NSString *prefix = [[iOSversion componentsSeparatedByString:@"."] firstObject];
    float versionVal = [prefix floatValue];


    if (versionVal >= 8)
    {

        NSLog(@"%@", [[UIApplication sharedApplication]  currentUserNotificationSettings]);
        //The output of this log shows that the app is registered for PUSH so should receive them

        if ([[UIApplication sharedApplication] currentUserNotificationSettings].types != UIUserNotificationTypeNone) {

            return YES;

        }

    }
    else
    {
        UIRemoteNotificationType types = [[UIApplication sharedApplication] enabledRemoteNotificationTypes];
        if (types != UIRemoteNotificationTypeNone){
            return YES;
        }

    }

    return NO;
}

-(void)registerForPUSHNotifications {

    NSString *iOSversion = [[UIDevice currentDevice] systemVersion];
    NSString *prefix = [[iOSversion componentsSeparatedByString:@"."] firstObject];
    float versionVal = [prefix floatValue];


    if (versionVal >= 8)
    {


            //for iOS8
        UIUserNotificationSettings *settings =
        [UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeAlert |
         UIUserNotificationTypeBadge |
         UIUserNotificationTypeSound categories:nil];
        [[UIApplication sharedApplication] registerUserNotificationSettings:settings];
        [[UIApplication sharedApplication] registerForRemoteNotifications];


    }
    else
    {

            [[UIApplication sharedApplication] registerForRemoteNotificationTypes: (UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeSound | UIRemoteNotificationTypeAlert)];


    }
}

尽管进行了此次升级,并且[[UIApplication sharedApplication] currentUserNotificationSettings]显示PUSH已为设备启用,但我没有收到PUSH通知.

就我们而言,我正在使用Parse并完成本书的所有工作(https://parse.com/tutorials/ios-push-notifications).

是否有人遇到同样的问题？还有其他我可能会遗失的东西吗？

Answer 1

在iOS 8中更改了注册推送通知的方法:以下是iOS 9之前所有版本的代码:

if ([[UIApplication sharedApplication] respondsToSelector:@selector(registerUserNotificationSettings:)])
{
    [[UIApplication sharedApplication] registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:(UIUserNotificationTypeSound | UIUserNotificationTypeAlert | UIUserNotificationTypeBadge) categories:nil]];

}
else
{
    [[UIApplication sharedApplication] registerForRemoteNotificationTypes:
     (UIUserNotificationTypeBadge | UIUserNotificationTypeSound | UIUserNotificationTypeAlert)];
}

如果您想检查推送通知是否启用,请使用以下代码:

- (BOOL) pushNotificationOnOrOff
{
    if ([UIApplication instancesRespondToSelector:@selector(isRegisteredForRemoteNotifications)]) {
        return ([[UIApplication sharedApplication] isRegisteredForRemoteNotifications]);
    } else {
        UIRemoteNotificationType types = [[UIApplication sharedApplication] enabledRemoteNotificationTypes];
        return (types & UIRemoteNotificationTypeAlert);
    }
}

#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

以上代码仅在Xcode 6+上运行...

Answer 2

在.m文件顶部添加此行

 #define IS_OS_8_OR_LATER ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0)

1)在注册推送通知时必须输入条件IOS8.在应用程序中添加此代码did finish launch.

if(IS_IOS_8_OR_LATER) {
    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];
 }

2)然后添加此方法 IOS8

#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

然后你将调用通知委托方法.希望对你有帮助 !!!