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iOS View Pictures
- Thread starter dakotas
- Start date
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do something like this.
(images is an ImageView)
Nick
(images is an ImageView)
Code:
-(IBAction) right{
UIImage *Image1 = [UIImage imageNamed:@"yourpic1.png"];
UIImage *Image2 = [UIImage imageNamed:@"yourpic2.png"];
UIImage *Image3 = [UIImage imageNamed:@"yourpic3.png"];
if(images.image == Image1)
images.image = Image2;
else if(images.image == Image2)
images.image = Image3;
else if(images.image == Image3)
images.image = Image1;
}
-(IBAction) left{
UIImage *Image1 = [UIImage imageNamed:@"yourpic1.png"];
UIImage *Image2 = [UIImage imageNamed:@"yourpic2.png"];
UIImage *Image3 = [UIImage imageNamed:@"yourpic3.png"];
if(images.image == Image3)
images.image = Image2;
else if(images.image == Image2)
images.image = Image1;
else if(images.image == Image1)
images.image = Image3;
}Nick
Or you could consider preloading your images into an array and then just using indexes to reference them. Something like this:
That way if you add or remove images from the array, the only code you'd need to change would be in viewDidLoad.
P.S. I've left the release of imageArray as an exercise for the reader.
Code:
NSArray *imageArray;
int imageArrayIndex;
- (void)viewDidLoad
{
[super viewDidLoad];
imageArray = [[NSArray alloc] initWithObjects:
[UIImage imageNamed:@"yourpic1.png"],
[UIImage imageNamed:@"yourpic2.png"],
[UIImage imageNamed:@"yourpic3.png"],
nil];
imageArrayIndex = 0;
}
- (IBAction)right {
imageArrayIndex++;
if (imageArrayIndex == imageArray.count) {
imageArrayIndex = 0;
}
images.image = [imageArray objectAtIndex:imageArrayIndex];
}
- (IBAction)left {
imageArrayIndex--;
if (imageArrayIndex == -1) {
imageArrayIndex = imageArray.count - 1;
}
images.image = [imageArray objectAtIndex:imageArrayIndex];
}That way if you add or remove images from the array, the only code you'd need to change would be in viewDidLoad.
P.S. I've left the release of imageArray as an exercise for the reader.