Question

I have a UISlider that I want to update a UITextField for the value of 1-100 in real time, i.e. I slide the slider and the value updates.

How can I do this? I couldn’t find anything in the class reference.

Answer 1

You will need to listen for value changes on the slider. You can set this up in interface builder or in code.

//Add event for valueChanged in viewDidLoad
[self.slider addTarget:self 
                action:@selector(sliderValueChanged:) 
      forControlEvents:UIControlEventValueChanged];

...

-(void)sliderValueChanged:(id)sender
{
    self.textField.text = [NSString stringWithFormat:@"%d", 
                             (int)(slider.value * 99) + 1];
}