ios – foursquare访问令牌没有来

我遵循foursquareauthentication指南，但我仍然有一个问题

这是我的代码

- (void)viewDidLoad { [super viewDidLoad]; self.webView.delegate = self; NSString *clientID = @"XXX"; NSString *redirectURI = @"http://www.example.com"; NSString *authenticateURLString = [NSString stringWithFormat:@"https://foursquare.com/oauth2/authenticate?client_id=%@&response_type=token&redirect_uri=%@", clientID, redirectURI]; NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:authenticateURLString]]; [self.webView loadRequest:request]; } - (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType { if ([request.URL.scheme isEqualToString:@"itms-apps"]) { [[UIApplication sharedApplication] openURL:request.URL]; return NO; } return YES; } - (void)webViewDidFinishLoad:(UIWebView *)webView { NSString *URLString = [[self.webView.request URL] absoluteString]; NSLog(@"--> %@", URLString); if ([URLString rangeOfString:@"access_token="].location != NSNotFound) { NSString *accessToken = [[URLString componentsSeparatedByString:@"="] lastObject]; NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults]; [defaults setObject:accessToken forKey:@"access_token"]; [defaults synchronize]; [self dismissViewControllerAnimated:YES completion:nil]; } } 

但NSLog的输出只是http://www.example.com 。 它没有访问令牌返回。 我做错了什么？

我在桌面谷歌浏览器中打开此链接，访问令牌已成功返回。 （www.example.com＃access_token = XXX）但是我打开iPhone模拟器的Safari浏览器中的链接，它只是返回的url。

感谢帮助。

@nearonline

Answer 1

我有同样的问题，原因是webViewDidFinishLoading中的URL将不包含访问令牌。 但是在shouldStartLoadWithRequest中的URL会。 因此，您应该将代码修改为：

 - (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType { NSString *URLString = [[request URL] absoluteString]; if ([URLString rangeOfString:@"access_token="].location != NSNotFound) { NSString *accessToken = [[URLString componentsSeparatedByString:@"="] lastObject]; NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults]; [defaults setObject:accessToken forKey:@"access_token"]; [defaults synchronize]; [self dismissViewControllerAnimated:YES completion:nil]; return NO; } return YES; } - (void)webViewDidFinishLoad:(UIWebView *)webView { }