ios - 当我们在 ios 中获取 facebook 用户详细信息时如何删除注销按钮标题

Question

Hi aim beginner in Ios，在我的项目中，我正在为用户添加 face-book 登录工具

当用户单击登录按钮输入正确的用户 ID 和密码时，它会像下图那样请求权限，然后我单击“确定”按钮，然后它会调用下面的方法

• (void)loginViewFetchedUserInfo:(FBLoginView *)loginView 用户:(id)用户{

它被重定向到我的 Mainviewcontroller

并且登录按钮标题显示“注销”，如下图浅灰色图像，然后它被重定向到另一个页面但是我不想在我们调用上面的委托(delegate)方法时显示注销按钮，我想显示像“使用 face-book 登录”这样的标题可以帮助我

我的代码如下:

#import "HomeViewController.h"
#import "HomeViewController1.h"

@interface HomeViewController ()
{
    FBLoginView *loginview;
    UILabel * loginLabel;
}

@end

@implementation HomeViewController
@synthesize fblogin;

- (void)viewDidLoad
{
    [super viewDidLoad];

    loginview = [[FBLoginView alloc]init];
    loginview.frame = CGRectMake(10, 95, 271, 37);
    loginview.readPermissions = @[@"public_profile", @"email", @"user_friends"];

    for (id obj in loginview.subviews)
    {
        if ([obj isKindOfClass:[UIButton class]])
        {
            UIButton * loginButton =  obj;
            UIImage *loginImage = [UIImage imageNamed:@"YourImg.png"];
            [loginButton setBackgroundImage:loginImage forState:UIControlStateNormal];
            [loginButton setBackgroundImage:nil forState:UIControlStateSelected];
            [loginButton setBackgroundImage:nil forState:UIControlStateHighlighted];
             loginButton.backgroundColor = [UIColor lightGrayColor];
        }

        if ([obj isKindOfClass:[UILabel class]])
        {
            loginLabel =  obj;
            loginLabel.text = @"Log in with Facebook";
            loginLabel.textAlignment = NSTextAlignmentCenter;
            loginLabel.frame = CGRectMake(0, 0, 271, 37);
       }
    }

    loginview.delegate = self;
    [self.view addSubview:loginview];
    [super viewDidLoad];
}

// This method will be called when the user information has been fetched
- (void)loginViewFetchedUserInfo:(FBLoginView *)loginView
                            user:(id<FBGraphUser>)user {

     NSLog(@"User Id : %@",user.id);
     NSLog(@"User Name : %@",user.name);

    HomeViewController1 * home1 = [self.storyboard instantiateViewControllerWithIdentifier:@"HomeViewController1"];
    [self presentViewController:home1 animated:YES completion:nil];

 }

Answer 1

如果获取信息，button.hidden = true