如何在iphone中通過fbgraph api顯示facebook集成中的活動指示燈

Question

我是iPhone編程新手。我已經通過fbgraph API將Facebook集成到我的應用程序中。我的目的是在我的應用程序中點擊facebook按鈕時顯示活動指示器。

Answer 1

您必須在您的.H文件中使用NSURLRequest和NSURLConnection以及UIActivityIndi​​catorView和NSData對象。

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]; 

} 

希望這一切都有助於您:)）