Iphone 谷歌'；s GTMOAuth2Authentication客户端支持授予脱机访问权限？

我正在尝试获取Picasa脱机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）

访问\类型=脱机和批准\提示=强制“

任何帮助都将不胜感激

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谢谢！

找到了答案。在发出请求之前，请在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]]];

希望这对你有帮助

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你有没有想过？

-(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];
}