iphone - Google 的 GTMOAuth2Authentication 客户端是否支持授予离线访问权限？

Question

我正在尝试获取 Picasa 离线访问相册和照片的请求令牌。我可以使用这两个参数（access_type 和approval_prompt）从服务器端请求它，但我不确定如何将它们传递给iPhone客户端（GTMOAuth2Authentication 和GTMOAuth2ViewControllerTouch）。

access_type=offline&approval_prompt=force"

任何帮助将不胜感激。

谢谢！

Answer 1

找到了答案。在发出请求之前，您在 GTMOAuth2SignIn additionalAuthorizationParameters 属性中设置参数。

GTMOAuth2ViewControllerTouch *viewController;

[[viewController signIn] setAdditionalAuthorizationParameters:[NSDictionary dictionaryWithObjects:[NSArray arrayWithObjects:@"offline",@"force", nil] forKeys:[NSArray arrayWithObjects:@"access_type",@"approval_prompt", nil]]];

Answer 2

-(void)showGoogleLoginPage{
    SEL finishedSelector = @selector(viewController:finishedWithAuth:error:);
    GTMOAuth2ViewControllerTouch *authViewController =
    [[GTMOAuth2ViewControllerTouch alloc] initWithScope:kGTLAuthScopeDrive
                                               clientID:kClientID
                                           clientSecret:kClientSecret
                                       keychainItemName:userKeyChainName
                                               delegate:self
                                       finishedSelector:finishedSelector];
    NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjects:[NSArray
                                                                              arrayWithObjects:@"offline",@"force",@"en", nil] forKeys:[NSArray arrayWithObjects:@"access_type",@"approval_prompt",@"hl", nil]];

    authViewController.signIn.shouldFetchGoogleUserProfile = YES;
    authViewController.signIn.additionalAuthorizationParameters=params;
    [self presentViewController:authViewController animated:YES completion:nil];
}

希望这对你有帮助..