Question

How can we set the button title for a button,i know this answer its simple,we need to set the title of the button for title ,but my need is somewhat diffrent ,i had a username which dynamically changes according to login.i set this in a button click and display it in a label within that button .my code for this is

- (void)getFacebookProfileFinished:(ASIHTTPRequest *)request
{

    // Use when fetching text data
    NSString *responseString = [request responseString];
    NSLog(@"Got Facebook Profile: %@", responseString);

    NSString *likesString;
    NSMutableDictionary *responseJSON = [responseString JSONValue];   

    NSString *username;
    NSString *firstName = [responseJSON objectForKey:@"first_name"];
    NSString *lastName = [responseJSON objectForKey:@"last_name"];
    if (firstName && lastName) {
        username = [NSString stringWithFormat:@"%@ %@", firstName, lastName];
    } else {
        username = @"mysterious user";
    }
     [_loginButton setTitle:username forState:UIControlStateNormal];
    _lblfaceusername.text = username;


    [self refresh];    
}

i need to display the user name in another button click and have to assing the title of that button to user name the code for this is

- (void)refresh {
    if (_loginState == LoginStateStartup || _loginState == LoginStateLoggedOut) {
        _loginStatusLabel.text = @"Not connected to Facebook";
        [_loginButton setTitle:@"Login" forState:UIControlStateNormal];
        _loginButton.hidden = NO;
    } else if (_loginState == LoginStateLoggingIn) {
        _loginStatusLabel.text = @"Connecting to Facebook...";
        _loginButton.hidden = YES;
    } else if (_loginState == LoginStateLoggedIn) {
        _loginStatusLabel.text = @"Connected to Facebook";
        [_loginButton setTitle:@"" forState:UIControlStateNormal];
        _loginButton.hidden = NO;
    }   
}

i need to set the username in the [_loginButton setTitle:@"" forState:UIControlStateNormal];i want [_loginButton setTitle:username forState:UIControlStateNormal];

Answer 1

Anyhow you have set the button title in the method

- (void)getFacebookProfileFinished:(ASIHTTPRequest *)request

after facebook request done. Then, why you need to set that again in refresh method? Just comment out the line in LoginStateLoggedIn condition in refresh method.

//[_loginButton setTitle:@"" forState:UIControlStateNormal];

Edit

- (void)refresh {
    if (_loginState == LoginStateStartup || _loginState == LoginStateLoggedOut) {
        _loginStatusLabel.text = @"Not connected to Facebook";
        [_loginButton setTitle:@"Login" forState:UIControlStateNormal];
        _loginButton.hidden = NO;
    } else if (_loginState == LoginStateLoggingIn) {
        _loginStatusLabel.text = @"Connecting to Facebook...";
        _loginButton.hidden = YES;
    } else if (_loginState == LoginStateLoggedIn) {
        _loginStatusLabel.text = @"Connected to Facebook";
        NSString *username = [_loginButton titleForState:UIControlStateNormal];
        [_loginButton setTitle:username forState:UIControlStateNormal];
        _loginButton.hidden = NO;
    }   
}