推送通知不適用於iOS 7，但適用於iOS8

Question

我有一個應用程序，使用APNS發送推送通知。 我已使用以下代碼在應用中配置了通知

if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 8.0)
{

#if __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_8_0 //__IPHONE_8_0 is not    defined in old xcode (==0). Then use 80000

    NSLog(@"registerForPushNotification: For iOS >= 8.0");

    [[UIApplication sharedApplication] registerUserNotificationSettings:
     [UIUserNotificationSettings settingsForTypes:
      (UIUserNotificationTypeSound | UIUserNotificationTypeAlert | UIUserNotificationTypeBadge)
                                       categories:nil]];
    [[UIApplication sharedApplication] registerForRemoteNotifications];
#endif
}
else {
    NSLog(@"registerForPushNotification: For iOS < 8.0");
    [[UIApplication sharedApplication] registerForRemoteNotificationTypes:
     (UIRemoteNotificationTypeAlert | UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeSound)];
}

我發現id通知可以在iOS 8和更高版本的設備上使用，但在iOS7設備上，它甚至要求啟用通知，但它顯示在通知設置下。 怎么了？

Answer 1

嘗試這個....

#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 80000

    if ([[UIApplication sharedApplication]    respondsToSelector:@selector(registerUserNotificationSettings:)]) {

        [[UIApplication sharedApplication] registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:(UIUserNotificationTypeSound | UIUserNotificationTypeAlert | UIUserNotificationTypeBadge) categories:nil]];
        [[UIApplication sharedApplication] registerForRemoteNotifications];

    } else {

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

#else

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

#endif

Answer 2

選擇下面的代碼，此代碼最近經過測試，推送通知可以正常工作。

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{

} //Register for notifications..
#ifdef __IPHONE_8_0
    if(NSFoundationVersionNumber > NSFoundationVersionNumber_iOS_7_1) {
        UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:(UIRemoteNotificationTypeBadge
                                                                                             |UIRemoteNotificationTypeSound
                                                                                             |UIRemoteNotificationTypeAlert) categories:nil];
        [[UIApplication sharedApplication] registerUserNotificationSettings:settings];
    }
#endif
    {
        UIRemoteNotificationType myTypes = UIRemoteNotificationTypeBadge | UIRemoteNotificationTypeAlert | UIRemoteNotificationTypeSound;
        [[UIApplication sharedApplication] registerForRemoteNotificationTypes:myTypes];
    }