values are all currently null --not by choice

Discussion in 'iOS Programming' started by jjanes, Mar 8, 2012.

  1. macrumors newbie

    Feb 28, 2011
    OK I am building my first IPAD App I have been programming in the past but am fairly new to object oriented processes and getting confused here.
    In my viewcontroller.m file I have several objects and actions (what I used to call functions)

    i have one that is a textbox and I want to get the value of what is in the text box when I go into the action code I can manipulate it and send it to the log etc. and this is what I expect and what I used to do in the non OOP functions.

    Here is my confusion in the OOP functions unless my variables were designated as global once I left the function they were gone.

    That is what seems to be happening in my App code as well

    I want to grab the content of the text box and then let the MFMailComposeViewController use that content to add it to the body of the email or elsewhere as is needed

    How do I set the content of that textbox so that MFMailComposeViewController can see and use it

    An example:
    A textbox object called name
    A new variable I was trying to use as a holder to go between the two areas
    called outName it has these settings in my .h file

    @property (weak, nonatomic) IBOutlet UITextField *outName;
    and in my .m file it is synthesized and released

    the controller named MFMailComposeViewController has a variable called emailBody inside of it.

    Now aside from joining several of the answerXXXX variables together to make the actual body of the email the way it will eventually.

    HOW would I get just that single variable outName to be available to MFMailComposeViewController so I can set emailBody equal to it

    in the MFMailComposeViewController emailBody is set like this
    NSString *emailBody  = [NSString stringWithFormat:@"Full Name: %@",outName];
    in the IBAction for this variable the code is set like this
    - (IBAction)answerName:(id)sender {
        NSLog([NSString stringWithFormat:@"%@", name.text]);
        [outName setText:name.text];
        [name resignFirstResponder];
    Currently all are coming back null when the email is actually shown however in the log they are set and show correctly

    How is this done normally

  2. Moderator


    Staff Member

    Sep 2, 2004
    The Centennial State

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