iOS requestAccessToAccountsWithType 不显示权限提示/NSAlert

Question

据我了解，当我调用 [ACAccountStore requestAccessToAccountsWithType:options:completion] 时，用户应该会看到一个 UIAlert，询问他们是否授予我的应用程序权限。

当我运行这段代码时，从来没有提示，granted 变量始终为“false”

-(void)myfunction { 
if (!_accountStore) _accountStore = [[ACAccountStore alloc] init];

    ACAccountType *fbActType = [_accountStore accountTypeWithAccountTypeIdentifier:ACAccountTypeIdentifierFacebook];


    NSDictionary *options = [[NSDictionary alloc] initWithObjectsAndKeys:
                             (NSString *)ACFacebookAppIdKey, @"##########",  
                             (NSString *)ACFacebookPermissionsKey, [NSArray arrayWithObject:@"email"],  
                             nil];


    [_accountStore requestAccessToAccountsWithType:fbActType options:options completion:^(BOOL granted, NSError *error) {
                                                NSLog(@"Home.m - getFBDetails - Check 2");
                                                if (granted == YES) {
                                                    NSLog(@"Success");
                                                    NSArray *accounts = [_accountStore accountsWithAccountType:fbActType];
                                                    _facebookAccount = [accounts lastObject];                                                    
                                                    [self me];
                                               } else {
                                                    NSLog(@"ERR: %@ ",error);
                                                    // Fail gracefully...
                                              }
            }
     ];

}

我收到错误:ERR: Error Domain=com.apple.accounts Code=8 "The operation couldn't be completed. (com.apple.accounts error 8.)"

更新:我做了一些测试，如果我使用 ACAccountTypeIdentifierTwitter 运行，我会收到连接到我的 Twitter 帐户的提示，所以我假设它与我的 Facebook 设置 ...

Answer 1

您的选项字典中有倒置的对象和键:

NSDictionary *options = [[NSDictionary alloc] initWithObjectsAndKeys:
                         @"##########",  ACFacebookAppIdKey,
                         [NSArray arrayWithObject:@"email"], ACFacebookPermissionsKey,
                         nil];