ios - xCode 在运行应用程序时失去与设备的连接

Question

我一直在构建一个 iOS 应用程序，并在模拟器和我的 iPad 上对其进行了测试。一切都在完美地工作，直到-
当我最近将代码添加到我的 AppDelegate.m 文件中以注册推送通知时。现在，当我尝试在设备上运行该应用程序时，该应用程序会在初始屏幕上停留一段时间，然后 xCode 出现以下错误。

process launch failed: timed out waiting for app to launch

这是我添加的代码，以防万一:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
 // Override point for customization after application launch.

#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 80000
   if ([[UIApplication sharedApplication]respondsToSelector:@selector(registerUserNotificationSettings:)])
   {
      UIUserNotificationType userNTypes = (UIUserNotificationTypeAlert|UIUserNotificationTypeBadge|UIUserNotificationTypeSound);

      UIUserNotificationSettings *settings = [UIUserNotificationSettings settingsForTypes:userNTypes categories:nil];

        NSLog(@"sherikkum registering 8.xx...");

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

#endif

return YES;
}

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

  //I added this alert coz i couldnt view NSLogs - coz my xcode wont connect
  UIAlertView *tokenalert = [[UIAlertView alloc] initWithTitle:@"Token"
                                                     message:[NSString stringWithFormat:@"%@",deviceToken]
                                                    delegate:nil
                                           cancelButtonTitle:@"OK"
                                           otherButtonTitles:nil, nil];
  [tokenalert show];
}

- (void)application:(UIApplication*)application didFailToRegisterForRemoteNotificationsWithError:(NSError*)error
{
   NSLog(@"Failed to get token, error: %@", error);
}

谢谢

Answer 1

您在运行应用时可能使用的是分发证书而不是开发者证书。在 Target => Build Settings=> Code Signing 中更改它。

如果您使用的是从分发证书创建的配置文件，您的代码将不会在从 xcode 运行的设备上运行。您需要使用从开发证书创建的配置文件。有关配置文件和证书的更多详细信息，请阅读 Apple's Documentation.