Question

So, I’ve been trying to learn the basics of Objective-C programming for iOS. Now I need to have a simple button placed in the frame along with a label. I got the label working but I’m not sure what’s wrong with the button code.

The code:

UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(25, 25, 275, 60)];
label.text = test;//@"I am learning Objective-C for the\n very first time!";
label.numberOfLines = 0;
label.lineBreakMode = UILineBreakModeWordWrap;
//label.lineBreakMode = NSLineBreakByWordWrapping; //iOS 6 only
[self.view addSubview:label];

UIButton *button = [[UIButton alloc] initWithFrame:CGRectMake(25, 100, 275, 40)];
button.titleLabel.text = @"Hello";
[self.view addSubview:button];

The button isn’t showing up…

Answer 1

A typical way to create a button is this:

    UIButton *btn = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    [btn setTitle:@"Hello" forState:UIControlStateNormal];
    btn.frame = CGRectMake(25, 100, 275, 40);
    [btn addTarget:self action:@selector(someMethod:) forControlEvents:UIControlEventTouchUpInside];
    [self addSubview:btn];

Then the someMeothod: would be:

- (void)someMethod:(UIButton *)sender {
    // handle button press
}