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

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