小编Sin*_*nba的帖子

我想知道本地玩家的真实姓名,但GKLocalPlayer的displayName返回"Me",而不是真实姓名.

编码我使用的:

 void (^completitionHandler)(NSArray *, NSError *) = ^(NSArray *players, NSError *error) { 

    for (GKPlayer *p in players) {
      NSString *alies = p.alies;
      NSString *name = p.displayName;
      NSLog(@"name = %@",name);   //not real name, just "Me"
    }

 }

iOS-app最小化时如何从相机拍照？
(即applicationDidEnterBackground:/ 之后applicationWillResignActive:)

AppDelegate.m: (感谢你链接)

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

    //To make the code block asynchronous
    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{

        //### background task starts
        NSLog(@"Running in the background\n");
        while(TRUE)
        {
            printf("Called"); //////Work fine

            [self.window.rootViewController captureNow]; /////Capture picture!

            [NSThread sleepForTimeInterval: 10.0]; //wait for 10 sec
        }
    });

    return YES;
}

OurViewController.m: (感谢你链接)

-(IBAction)captureNow {

    AVCaptureConnection *videoConnection = nil;
    for (AVCaptureConnection *connection in _stillImageOutput.connections)
    {
        for (AVCaptureInputPort *port in [connection inputPorts])
        {
            if ([[port …

我们希望在iOS 5+应用中使用iOS 7字体.

我们试试这个:

UIFont *font = [UIFont fontWithName:@"Helvetica Neue Ultra Light" size:50];

要么

UIFont *font = [UIFont fontWithName:@"Helvetica-Neue-Ultra-Light" size:50];

但是字体是(null).

那么,如何使用iOS 7字体？