UISlider iOS

Objective-C

Declare a slider property in the ViewController.h or in the interface of ViewController.m

@property (strong, nonatomic)UISlider *slider;//Define frame of slider and add to viewCGRect frame = CGRectMake(0.0, 100.0, 320.0, 10.0);
 UISlider *slider = [[UISlider alloc] initWithFrame:frame];
 [slider addTarget:self action:@selector(sliderAction:) forControlEvents:UIControlEventValueChanged];
 [self.slider setBackgroundColor:[UIColor clearColor]];
 self.slider.minimumValue = 0.0;
 self.slider.maximumValue = 50.0;
 //sending a NO/False would update the value of slider only when the user is no longer touching the screen. Hence sending only the final value
 self.slider.continuous = YES;
 self.slider.value = 25.0;
 [self.view addSubview slider];

Handle the slider change event

- (IBAction)sliderAction:(id)sender {
    NSLog(@"Slider Value %f", sender.value);}

SWIFT Example

let frame = CGRect(x: 0, y: 100, width: 320, height: 10)
 let slider = UISlider(frame: frame)
 slider.addTarget(self, action:  #selector(sliderAction), for: .valueChanged)
 slider.backgroundColor = .clearslider.minimumValue = 0.0
 slider.maximumValue = 50.0
 //sending a NO/False would update the value of slider only when the user is no longer touching thescreen. Hence sending only the final valueslider.isContinuous = true
 slider.value = 25.0
 view.addSubview(slider)

Handling the slider change event

func sliderAction(sender:UISlider!)
{
print("value--\(sender.value)")
}