ios - Facebook 登录后更改 View Controller
<p><p> <img src="/image/1fq5n.png" alt="enter image description here"/>
我在下面列出了处理 Facebook 登录的 ViewController 。就像现在一样,应用程序运行并加载具有 Facebook 登录按钮的 View 。登录后,该按钮会将文本更改为“注销”。我想要发生的是,一旦用户登录,它就会转到另一个 ViewController 。</p>
<p>我在 Storyboard中添加了一个新的 ViewController 并在两者之间进行了“segue”,但我觉得我错过了一些东西。如果有帮助的话,我制作的新 ViewController 被命名为“homeViewController”。谢谢</p>
<pre><code>#import "ViewController.h"
@interface ViewController ()
@end
@implementation ViewController
- (void)viewDidLoad
{
;
// Do any additional setup after loading the view, typically from a nib.
self.loginView.readPermissions = @[@"public_profile", @"email", @"user_friends"];
}
- (void)didReceiveMemoryWarning
{
;
// Dispose of any resources that can be recreated.
}
- (void)loginViewFetchedUserInfo:(FBLoginView *)loginView user:(id<FBGraphUser>)user
{
NSLog(@"%@", user.name);
}
- (void)loginViewShowingLoggedInUser:(FBLoginView *)loginView
{
NSLog(@"You are logged in! :) ");
}
- (void)loginViewShowingLoggedOutUser:(FBLoginView *)loginView
{
NSLog(@"You are logged out! :( ");
}
- (void)loginView:(FBLoginView *)loginView handleError:(NSError *)error
{
NSString *alertMessage, *alertTitle;
if ()
{
alertTitle = @"Facebook error";
alertMessage = ;
}
else if ( == FBErrorCategoryAuthenticationReopenSession)
{
alertTitle = @"Session Error";
alertMessage = @"Your current session is no longer valid. Please log in again.";
}
else if ( == FBErrorCategoryUserCancelled)
{
NSLog(@"user cancelled login");
}
else
{
alertTitle= @"Something went wrong";
alertMessage = @"Please try again later.";
NSLog(@"Unexpected error:%@", error);
}
if (alertMessage)
{
[[ initWithTitle:alertTitle
message:alertMessage
delegate:nil
cancelButtonTitle:@"OK"
otherButtonTitles:nil] show];
}
}
@end
</code></pre></p>
<br><hr><h1><strong>Best Answer-推荐答案</ strong></h1><br>
<p><p>只要连接到 Facebook 登录按钮,segue 就应该是您所需要的。 </p>
<p>如果你愿意,你可以打电话</p>
<pre><code>- (BOOL)shouldPerformSegueWithIdentifier:(NSString *)identifier sender:(id)sender {
if(currentUser ) { //this checks that the user logged in before moving to the next view
return YES;
}
else return NO;
}
</code></pre>
<p>在移动到 homeViewController 之前检查用户是否成功登录。
你会做类似上面代码的事情</p></p>
<p style="font-size: 20px;">关于ios - Facebook 登录后更改 ViewController ,我们在Stack Overflow上找到一个类似的问题:
<a href="https://stackoverflow.com/questions/25416658/" rel="noreferrer noopener nofollow" style="color: red;">
https://stackoverflow.com/questions/25416658/
</a>
</p>
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