iphone - 如何通过iPhone中的fbgraph API在Facebook集成中显示事件指示器

我是iPhone编程的新手。我已经通过fbgraph API将facebook集成到了我的应用程序中。我的意图是在我的应用程序中单击Facebook按钮时显示活动指示器。

最佳答案

您必须在.H文件中使用NSURLRequest和NSURLConnection以及UIActivityIndi​​catorView和NSData对象。

NSURLRequest *theRequest;
    NSURLConnection *theConnection;
    IBOutlet UIActivityIndicatorView *myIndicator;
    NSMutableData *receivedData;
}

@property (nonatomic, retain) NSMutableData *receivedData;
@property (nonatomic,retain) IBOutlet UIActivityIndicatorView *myIndicator;

.m文件

@synthesize youTubeWebView,receivedData,myIndicator;

- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data

{
    [receivedData appendData:data];
}


- (void)viewDidLoad {
    [super viewDidLoad];

    [myIndicator startAnimating];
    myIndicator.hidesWhenStopped = YES;
// Now your code of fb integration

NSURLRequest requestWithURL:url;

    theConnection=[[NSURLConnection alloc] initWithRequest:theRequest delegate:self];

    if (theConnection) {
        receivedData = [[NSMutableData data] retain];
    }

    }

- (void)connectionDidFinishLoading:(NSURLConnection *)connection
// code after Loading of fb page
    [myIndicator stopAnimating];

}

希望所有这些对您有所帮助:)）