您已经授权了Facebook，iOS [英] You have already authorized facebook, iOS
问题描述
现在我有一个iOS应用程序，使用Facebook SDK登录使用用户的Facebook帐户，显然你知道。这里是我用来做这些东西的代码。
- （void）loginButtonClicked
{
FBSDKLoginManager * login = [[FBSDKLoginManager alloc] init];
[login logInWithReadPermissions：@ [@email] fromViewController：self handler：^（FBSDKLoginManagerLoginResult * result，NSError * error）
{
if（error）
{
//进程错误
}
else if（result.isCancelled）
{
//处理取消
}
else
{
if（[result.grantedPermissions containsObject：@email]）
{
NSLog（@result is：％@，result）;
[self fetchUserInfo];
}
}
}];
- （void）fetchUserInfo
{
if（[FBSDKAccessToken currentAccessToken]）
{
NSLog（@令牌可用：％@，[[FBSDKAccessToken currentAccessToken] tokenString]）;
[[FBSDKGraphRequest alloc] initWithGraphPath：@me参数：@ {@fields：@id，name，link，email，birthday，bio，location，friends，hometown，friendlists }]
startWithCompletionHandler：^（FBSDKGraphRequestConnection * connection，id result，NSError * error）{
if（！error）
{
NSLog（@resultis：％@ ，结果）;
}
else
{
NSLog（@Error％@，error）;
}
}];
}
}
问题是用户删除应用和他们安装然后再次登录，Facebook登录的对话框显示您已经授权{ApplicationName}，用户必须单击确定返回我的应用程序。
我想要的他们只需要标签登录按钮，然后加载圈就会显示和成功。
有任何想法吗？
选择1
如果您按 / code>按钮，调用此
删除所有授予的权限
[[FBSDKGraphRequest alloc] initWithGraphPath：@me / permissions参数：nil
HTTPMethod：@DELETE] startWithCompletionHandler：^（FBSDKGraphRequestConnection * connection，id result，NSError *错误）{
if（error）
{
//进程错误
}
else if（result.isCancelled）
{
//处理取消
}
else
{
//调用您的登录操作并创建新会话
[self loginButtonClicked];
}
}];
选择2
如果要清除当前会话使用，如
- （void）loginButtonClicked
{
FBSDKLoginManager * login = [[FBSDKLoginManager alloc] init];
[login logOut];
[FBSDKAccessToken setCurrentAccessToken：nil];
//然后继续相同的过程
更新
如果你想绕过连接
- （void）loginButtonClicked
{
如果FBSDKAccessToken.currentAccessToken！= nil
{
//已经使用请求的权限登录
}
else
{
//开始登录过程
}
}
Swift
删除所有已授予的Permisson
code> FBSDKGraphRequest（graphPath：me / permissions，参数：nil，HTTPMethod：DELETE）。startWithCompletionHandler（{（connection：FBSDKGraphRequestConnection，result：AnyObject，error：NSError） - > Void in
如果错误！{
//进程错误
}
如果result.isCancelled {
//处理取消
}
else {
//调用您的登录操作并创建新会话
self.loginButtonClicked（）
}
}）
选择2 / p>
如果要清除当前会话使用，如
func loginButtonClicked （）{
var login：FBSDKLoginManager = FBSDKLoginManager（）
login.logOut（）
FBSDKAccessToken.currentAccessToken = nil
//然后继续相同的进程
}
更新
func loginButtonClicked（）{
如果FBSDKAccessToken.currentAccessToken！= nil {
//已经使用请求的权限登录
}
else {
//启动登录过程
}
}
Now I have an iOS Application that using facebook SDK to login using user facebook account, obviously you know that. And here is my code which i use to do this stuff.
-(void)loginButtonClicked
{
FBSDKLoginManager *login = [[FBSDKLoginManager alloc] init];
[login logInWithReadPermissions:@[@"email"] fromViewController:self handler:^(FBSDKLoginManagerLoginResult *result, NSError *error)
{
if (error)
{
// Process error
}
else if (result.isCancelled)
{
// Handle cancellations
}
else
{
if ([result.grantedPermissions containsObject:@"email"])
{
NSLog(@"result is:%@",result);
[self fetchUserInfo];
}
}
}];
}
- (void)fetchUserInfo
{
if ([FBSDKAccessToken currentAccessToken])
{
NSLog(@"Token is available : %@",[[FBSDKAccessToken currentAccessToken]tokenString]);
[[[FBSDKGraphRequest alloc] initWithGraphPath:@"me" parameters:@{@"fields": @"id, name, link, email, birthday, bio, location, friends, hometown, friendlists"}]
startWithCompletionHandler:^(FBSDKGraphRequestConnection *connection, id result, NSError *error) {
if (!error)
{
NSLog(@"resultis:%@",result);
}
else
{
NSLog(@"Error %@",error);
}
}];
}
}
Problem is when user deleted app and they install then signin back again, the dialog of facebook login show "You have already authorized {ApplicationName}" and user must click OK to return my app.
All I want that they only need tab to login button then a loading circle show up and success.
Any idea to do that?
Choice-1
if you press the Login button, call this
delete all granted permisson
[[[FBSDKGraphRequest alloc] initWithGraphPath:@"me/permissions" parameters:nil
HTTPMethod:@"DELETE"] startWithCompletionHandler:^(FBSDKGraphRequestConnection *connection, id result, NSError *error) {
if (error)
{
// Process error
}
else if (result.isCancelled)
{
// Handle cancellations
}
else
{
// call your login action and create the new session
[self loginButtonClicked];
}
}];
Choice-2
if you want to clear the current session use like
-(void)loginButtonClicked
{
FBSDKLoginManager *login = [[FBSDKLoginManager alloc] init];
[login logOut];
[FBSDKAccessToken setCurrentAccessToken:nil];
// then continue the same process
update
if you want to bypass the connection
-(void)loginButtonClicked
{
if FBSDKAccessToken.currentAccessToken != nil
{
// already logged in with the requested permissions
}
else
{
// start the login process
}
}
Swift
delete all granted permisson
FBSDKGraphRequest(graphPath: "me/permissions", parameters: nil, HTTPMethod: "DELETE").startWithCompletionHandler({(connection: FBSDKGraphRequestConnection, result: AnyObject, error: NSError) -> Void in
if error! {
// Process error
}
else if result.isCancelled {
// Handle cancellations
}
else {
// call your login action and create the new session
self.loginButtonClicked()
}
})
Choice-2
if you want to clear the current session use like
func loginButtonClicked() {
var login: FBSDKLoginManager = FBSDKLoginManager()
login.logOut()
FBSDKAccessToken.currentAccessToken = nil
// then continue the same process
}
update
func loginButtonClicked() {
if FBSDKAccessToken.currentAccessToken != nil {
// already logged in with the requested permissions
}
else {
// start the login process
}
}
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