打開Facebook對話框進行身份驗證，而不是在iPhone中安裝“ facebook”應用程序？

Question

我想制作一個要求對對話框中的Facebook登錄進行身份驗證的應用程序，無論是在iPhone中安裝了Facebook應用程序，還是未安裝。如果我注銷了Facebook，則應該從Facebook中注銷。 我已經將facebook-ios-sdk用於facebook api，我的代碼如下：

- (void)viewDidLoad
{
    _facebook=[[Facebook alloc] initWithAppId:appId andDelegate:self];

    self.navigationController.navigationBarHidden = YES;
    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
    if ([defaults objectForKey:@"FBAccessTokenKey"] && [defaults objectForKey:@"FBExpirationDateKey"])
    {
        _facebook.accessToken = [defaults objectForKey:@"FBAccessTokenKey"];
        _facebook.expirationDate = [defaults objectForKey:@"FBExpirationDateKey"];
    }

    [super viewDidLoad];
}

//點擊登錄按鈕

-(IBAction)Login
{
    NSLog(@"login called");

    if (![self connected])
    {
        UIAlertView *alert=[[UIAlertView alloc] initWithTitle:@"Connection" message:@"Internet is not Connected" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
        [alert show];[alert release];
    }
    else
    {
        if (suggestion==nil)
        {
            suggestion=[[Suggestions alloc] initWithNibName:@"Suggestions" bundle:nil];
        }
        [suggestion setReqFlg:YES];

        if (![_facebook isSessionValid]) 
        {
            NSLog(@"sesssion invalid u have to login...");
            [_facebook authorize:nil];
        }
        else
        {
            NSLog(@"valid and going on next page called graph API ");      

            [_facebook requestWithGraphPath:@"me?fields=id,name" andDelegate:self];
            suggestion.parentView=self;
            [self.navigationController pushViewController:suggestion animated:YES];
        }
    }
}



- (void)fbDidLogin
{
    NSLog(@"facebook did first login..");
    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
    [defaults setObject:[_facebook accessToken] forKey:@"FBAccessTokenKey"];
    [defaults setObject:[_facebook expirationDate] forKey:@"FBExpirationDateKey"];  
    [defaults synchronize];
    NSLog(@"called gtraph from login in facebook ");
    [_facebook requestWithGraphPath:@"me?fields=id" andDelegate:self];
    if (suggestion==nil)
    {
        suggestion=[[Suggestions alloc] initWithNibName:@"Suggestions" bundle:nil];
    }
    suggestion.parentView=self;
    [self.navigationController pushViewController:suggestion animated:YES];
}

- (void)fbDidLogout
{
    NSLog(@"logout");
    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];

    [defaults removeObjectForKey:@"FBAccessTokenKey"];
    [defaults removeObjectForKey:@"FBExpirationDateKey"];
    [defaults removeObjectForKey:@"FBUserId"];

    [defaults synchronize];
}

我是否需要在facebook.m文件中進行更改還是有另一種方法？每次我都單擊登錄按鈕時，如果Facebook已注銷，則應顯示Facebook登錄對話框;如果Facebook已登錄，則導航至下一個視圖。請勿打開Facebook應用程序安裝在iPhone中用於登錄目的。

給我您真正需要的評論或答案。 謝謝你！

Answer 1

它非常簡單，進入facebook.m文件，使用FBAppAuth搜索，您將獲得3_4的結果，例如：

 [self authorizeWithFBAppAuth:YES safariAuth:YES];

只需將YES更改為NO即可：-

 [self authorizeWithFBAppAuth:NO safariAuth:NO];

僅在facebook.m中更改它，然后編譯並運行，當您單擊loginButton時出現fblogin對話框:)

編輯

我的應用程序登錄頁面上顯示了登錄對話框