UISlider value changed update result - ios

Question

I have three labels receiving output from three UISliders. A result is calculated and placed in a fourth label when a segmented control is touched.
How do I make the result update if one of the slider values is changed without touching the segmented control again?

Answer 1

First, add an event for your slider changing values:
[mySlider addTarget:self
action:#selector(sliderValueChanged:)
forControlEvents:UIControlEventValueChanged];
You will want to do this for each slider.
In your sliderValueChanged: function:
- (void)sliderValueChanged:(id)sender {
[self calculateResult];
}
In calculateResult you can do your calculations and set your result box.
If you need to make sure your segmented control is in some state first, just add an if clause to sliderValueChanged:
- (void)sliderValueChanged:(id)sender {
if ([mySegmentedControl selectedSegmentIndex] == 1) {
[self calculateResult];
}
}

Answer 2

I came up with something that worked using mopsled's answer:
if (UIControlEventValueChanged && mySeg.selectedSegmentIndex == 0) {
float floatResult = [f3.text floatValue]-[f2.text floatValue];
float coldFactor = [fcold.text floatValue]*floatResult;
float result = [f1.text floatValue]+coldFactor;
NSString *tpResult = [[NSString alloc] initWithFormat:#"%.0f",result];
f4Result.text = tpResult;
}