iphone - 如何通过 iPhone 中的 fbgraph api 显示 facebook 集成中的事件指示器

Question

我是 iPhone 编程新手。我已通过 fbgraph API 将 facebook 集成到我的应用程序中。我的目的是在我的应用程序中单击 facebook 按钮时显示事件指示器。

Answer 1

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];

}

希望这一切对您有帮助:))