UISlider controlling UIImageView - iphone

Question

I'm trying to make a UISlider control the picture shown in a UIImageView. Slider min is 0, max is 50.
The problem is the UIImageView only react to the else and chosenTime = 50.
Only then corresponding picture are shown in the UIImageView.
48 and 49 are ignored, the "else" picture is shown in these cases.
Any help is much appreciated!
Here's the code:
-(IBAction) sliderChanged:(id)sender{
UISlider *slider = (UISlider *) sender;
int prog = (int)(slider.value + 0.5f);
NSString * newText = [[NSString alloc] initWithFormat:#"%d", prog];
sliderLabel.text = newText;
int chosenTime = [newText intValue];
NSLog(#"chosenTime is %i", chosenTime);
//chosenTime is confirmed int value in the NSLOG!!!
if (chosenTime == 1) {
NSString *fullpath = [[[NSBundle mainBundle] bundlePath] stringByAppendingString:#"/Pic0001.png"];
clockView.image = [UIImage imageWithContentsOfFile:fullpath];
}
if (chosenTime == 48) {
NSString *fullpath = [[[NSBundle mainBundle] bundlePath] stringByAppendingString:#"/Pic0048.png"];
clockView.image = [UIImage imageWithContentsOfFile:fullpath];
}
if (chosenTime == 49) {
NSString *fullpath = [[[NSBundle mainBundle] bundlePath] stringByAppendingString:#"/Pic0049.png"];
clockView.image = [UIImage imageWithContentsOfFile:fullpath];
}
if (chosenTime == 50) {
NSString *fullpath = [[[NSBundle mainBundle] bundlePath] stringByAppendingString:#"/Pic0050.png"];
clockView.image = [UIImage imageWithContentsOfFile:fullpath];
} else {
NSString *fullpath = [[[NSBundle mainBundle] bundlePath] stringByAppendingString:#"/Pic0000.png"];
clockView.image = [UIImage imageWithContentsOfFile:fullpath];
}
}

Answer 1

I simplified the code a little bit. Make sure the NSLogged numbers are in the range 1-50. If not, the slider's minimum/maximum values are misconfigured.
-(IBAction) sliderChanged: (UISlider *) sender
{
int chosenTime = (int) ceilf(slider.value);
NSLog(#"chosenTime is %i", chosenTime);
//chosenTime is confirmed int value in the NSLOG!!!
if (chosenTime > 50)
chosenTime = 0;
NSString *fileName = [NSString stringWithFormat: #"Pic00%02d.png", chosenTime];
NSString *fullpath = [[[NSBundle mainBundle] bundlePath] stringByAppendingPathComponent: fileName];
clockView.image = [UIImage imageWithContentsOfFile: fullpath];
}
The problem with your code is the absence of else after each if. The comparisons fall through to the last if, after which it's either 50 or not 50, and not being 50 is treated as zero.