爲什麼應用程序未在iOS 8中註冊推送通知？

Question

我將Xcode升級到Xcode 6.0.1，現在iOS8設備沒有發生遠程通知註冊。它適用於iOS 7設備。

我已經加入在應用程序代理的代碼如下所述：

//-- Set Notification 
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0) 
{ 
    UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:(UIRemoteNotificationTypeBadge 
    |UIRemoteNotificationTypeSound|UIRemoteNotificationTypeAlert) categories:nil]; 
    [[UIApplication sharedApplication] registerUserNotificationSettings:settings]; 

    NSLog(@"current notifications : %@", [[UIApplication sharedApplication] currentUserNotificationSettings]); 
} 
else 
{ 
    [[UIApplication sharedApplication] registerForRemoteNotificationTypes: 
    (UIUserNotificationTypeBadge | UIUserNotificationTypeSound | UIUserNotificationTypeAlert)]; 
} 

即使當前通知存在，並且它不是零。

然而下面的方法不叫：下面

- (void)application:(UIApplication*)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData*)deviceToken 

截圖解釋說，我已經啓用的後臺模式的某些選項：

和通知在設備設置我的應用程序的設置。

Answer 1

你需要調用

[[UIApplication sharedApplication] registerForRemoteNotifications]; 

在iOS8上的代碼路徑，註冊用戶通知設置後。

Answer 2

以下代碼適用於iOS 8.0 Xcode 6.0或更高版本以及以下版本。

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions 
{ 
    //This code will work in iOS 8.0 xcode 6.0 or later 
    if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0) 
    { 
     [[UIApplication sharedApplication] registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:(UIUserNotificationTypeSound | UIUserNotificationTypeAlert | UIUserNotificationTypeBadge) categories:nil]]; 

     [[UIApplication sharedApplication] registerForRemoteNotifications]; 
    } 
    else 
    { 
     [[UIApplication sharedApplication] registerForRemoteNotificationTypes: (UIRemoteNotificationTypeNewsstandContentAvailability| UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeSound | UIRemoteNotificationTypeAlert)]; 
    } 

    return YES; 
} 

Answer 3

檢查以下步驟希望它會幫助你

步驟1在didFinishLaunchingWithOptions

if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0) 
{ 
    //ios8 ++ 
    if ([[UIApplication sharedApplication] respondsToSelector:@selector(registerUserNotificationSettings:)]) 
    { 
     UIUserNotificationSettings* notificationSettings = [UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeAlert | UIUserNotificationTypeBadge | UIUserNotificationTypeSound categories:nil]; 
     [[UIApplication sharedApplication] registerUserNotificationSettings:notificationSettings]; 
    } 
} 
else 
{ 
    // ios7 
    if ([[UIApplication sharedApplication] respondsToSelector:@selector(registerForRemoteNotificationTypes:)]) 
    { 
     [[UIApplication sharedApplication] registerForRemoteNotificationTypes:(UIRemoteNotificationTypeAlert | UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeSound)]; 
    } 
} 

步驟2

-(void)application:(UIApplication *)application didRegisterUserNotificationSettings:(UIUserNotificationSettings *)notificationSettings // available in iOS8 
{ 
[application registerForRemoteNotifications]; 
} 
-(void)application:(UIApplication *)application didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken 
{ 
    NSString * token = [NSString stringWithFormat:@"%@", deviceToken]; 
//Format token as you need: 
token = [token stringByReplacingOccurrencesOfString:@" " withString:@""]; 
token = [token stringByReplacingOccurrencesOfString:@">" withString:@""]; 
token = [token stringByReplacingOccurrencesOfString:@"<" withString:@""]; 
NSLog(@"%@",token); 
} 
-(void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo 
{ 
// Handle your remote RemoteNotification 
} 

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