Question

Ok simple question but can’t find an answer..

I need to pass my viewcontroller to an method “saveinfo” within a class which is called when the button is pressed, how to make viewcontroller visible to “saveinfo” method so i can use it there?

Ok i’ll add the whole class. Basicaly I need to get the textfield information when the button is pressed. But i can’t get access to textFields nor TableControll variables in my saveinfo method.

@implementation Settings

- (id)init: (TableViewController*) TableControll {
  NSMutableArray *textFields = [[NSMutableArray alloc] initWithCapacity:5];
    UITextField *textField = nil;

    for (int i = 0; i < 3; i++) {
        textField = [[UITextField alloc] initWithFrame:CGRectMake(0.0f, 0.0f+(i*35), 120.0f, 30.0f)];
        textField.backgroundColor = [UIColor whiteColor];
        [textField setBorderStyle:(UITextBorderStyleRoundedRect)];
        [TableControll.view addSubview:textField];

        [textFields addObject:textField];
        [textField release]; textField = nil;
    }
    UITextField *textName = textFields[0];
    textName.placeholder = @"Vardas";

    UITextField *textNo = textFields[1];
    textNo.placeholder = @"Telefonas";
    textNo.keyboardType = UIKeyboardTypeNumberPad;
    UITextField *textPin = textFields[2];
    textPin.keyboardType = UIKeyboardTypeNumberPad;
    textPin.placeholder = @"Pin";

    UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    button.frame = CGRectMake(150, 20, 160, 30);
    [button setTitle:@"Advanced settings" forState:UIControlStateNormal];
    [TableControll.view addSubview:button];
    UIButton *save = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    save.frame = CGRectMake(150, 60, 160, 30);
    [save setTitle:@"Save settings" forState:UIControlStateNormal];
    [TableControll.view addSubview:save];
    [button addTarget:self action:@selector(goAdvanced)
     forControlEvents:UIControlEventTouchUpInside];
    [save addTarget:self action:@selector(saveInfo)
     forControlEvents:UIControlEventTouchUpInside];

    return self;
}

-(void)goAdvanced {
    AppDelegate *newControll = (AppDelegate*)[UIApplication sharedApplication].delegate;
    [newControll ChangeController];
}

-(void)saveInfo {

    for(int i=0;i<5;i++) {
        UITextField *tempTxtField=[_textFields objectAtIndex:i];
        NSLog(@"do it %@",tempTxtField.text);
    }

}

@end

Answer 1

just add the NSMutableArray as ivar to your class:

@implementation TableControll {
    NSMutableArray *_textFields;
}

- (id)init: (TableViewController*) tableControll {
    _textFields = [[NSMutableArray alloc] initWithCapacity:5];

    //init the textfields
    //and add it as subview
}

// skipping the rest of the implementation

-(void)saveInfo {
    for(int i=0;i<5;i++) {
        UITextField *tempTxtField=[_textFields objectAtIndex:i];
        NSLog(@"do it %@",tempTxtField.text);
    }                 
}  
@end

you should check if you could reuse the UITextFields or have to init the NSMutableArray every time again. It seems you don’t use ARC, but you shouldn’t write something like [textField release]; textField = nil;. You want to release the object to decrement the counter, but do not set it to nil (except in dealloc).