UISlider moving UIImage - ios

Question

I am using a UIslider to move a UIImage left and right on the screen. When the UISlider is totally on the left the image will be to a certain position on the X atis on the left of the screen, and when the slider is totally to the right, the image is on the right of the screen. If for example I want to give the image flexibility movement of 600px, how can I do that?
-(IBAction)sliderValueChanged:(UISlider *)sender
{
if (sender.value >= 0.5) {
int value;
value = sender.value * 6;
[photoView setFrame:CGRectMake(photoView.frame.origin.x + value,
PhotoView.frame.origin.y,photoView.frame.size.width,photoView.frame.size.height)];
}else{
int value;
value = sender.value * -6;
[photoView setFrame:CGRectMake(photoView.frame.origin.x + value,
photoView.frame.origin.y,photoView.frame.size.width,photoView.frame.size.height)];
}
...this was my guess

Answer 1

I recently had to do the same thing you're trying to do for use in a full scale aircraft where the iPad/iPhone acts as a instrument gauge.
Here is the code I used to move an image for the aircraft's instrument readout: Also, you should round the float value to an int because we are dealing with whole pixel points. (The image will still move fine with a float value, but I like using an int when dealing with pixel points.)
#import "ViewController.h"
#import <math.h>
#interface ViewController()
#property (nonatomic, strong) IBOutlet UIImageView *XAxis;
#property (nonatomic, strong) IBOutlet UISlider *XSlider;
#end
#implementation ViewController
- (void)viewDidLoad
{
[super viewDidLoad];
self.XSlider.minimumValue = 0.0f;
self.XSlider.maximumValue = 600.0f;
}
- (IBAction)XValueChanged:(UISlider *)XSlider;
{
int XResult = (int)floorf(XSlider.value);
self.XAxis.center = CGPointMake(self.XAxis.center.x, XResult);
NSLog(#"X Value: %d", XResult);
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
}
#end

Answer 2

How about something like this,
slider.minimumValue = 0.0f;
slider.maximumValue = 600.0f;
-(IBAction)sliderValueChanged:(UISlider *)sender
{
[photoView setFrame:CGRectMake(sender.value, PhotoView.frame.origin.y,photoView.frame.size.width,photoView.frame.size.height)];
}
You can also do this by changing photoView.frame.origin.x + value to floatValue + value where floatValue is some fixed number based on where you want to set the photoView. Also calculate value as value = sender.value * constant where constant again depends on how much you need to move it for each slider movement.
Check documentation for more details on properties