Next button image array xcode - ios

Question

I'm trying to code an app in Xcode 4, with storyboarding.
My project is something like this:
1 table view controller
1 detail view controller with 4 buttons,
and say 6 images( 1-1.jpg/1-2.jpg/1-3.jpg, and 2-1.jpg/2-2.jpg/2-3.jpg.
I have got my app to show the images(1-1.jpg and 2-1.jpg) in the array when clicking the cells.
And this is my code:
// TableViewController.m:
#synthesize myTitle = _myTitle;
#synthesize myScene = _myScene;
#synthesize myImages = _myImages;
- (void)viewDidLoad
{
[super viewDidLoad];
self.myTitle = [[NSArray alloc] initWithObjects:#"Chicken", #"Flower", nil];
self.myScene = [[NSArray alloc] initWithObjects:#"1", #"2", nil];
self.myImages = [[NSArray alloc] initWithObjects:#"1-1.jpg", #"2-1.jpg", nil];
}
// DetailViewController.m
#synthesize titleLabel = _titleLabel;
#synthesize sceneLabel = _sceneLabel;
#synthesize imageView = _imageView;
#synthesize myDetailModel = _myDetailModel;
- (void)viewDidLoad
{
[super viewDidLoad];
self.navigationItem.title = self.titleLabel.text = [self.myDetailModel objectAtIndex:0];
self.sceneLabel.text = [self.myDetailModel objectAtIndex:1];
self.imageView.image = [UIImage imageNamed:
[self.myDetailModel objectAtIndex:2]];
I want my DetailView page to show the next or previous image(1-2.jpg/1-3.jpg... / 2-2.jpg, 2-3.jpg...) each time I press next or previous (black)button,
and to show next or previous scene(chicken scene and flower scene) when I press another (green)buttons,
like https://dl.dropboxusercontent.com/u/7493131/q3.jpg
I don't know how to array 1-2.jpg, 1-3.jpg, 2-2.jpg and 2-3.jpg and what to do with them.
I am so new that I would like some example code to help please to study how it works,
and how I can implement similar within my app. Thank you.

Answer 1

-(IBAction)rightClick{
if (imageArrayObj.count > 0) {
currentIndex++;
if (currentIndex > imageArrayObj.count - 1) {
currentIndex = 0;
}
imageViewObj.image = [imageArrayObj objectAtIndex:currentIndex];
}
}
It's working properly ..... Use this and currentIndex is integer declare " int currentIndex;" and assign value in view did load "currentIndex = 0;"

Answer 2

You need to create an instance int variable idx to keep track of which image you are handling and assign two IBActions to those buttons :
// This is for your fighter case
- (IBAction)presentPreviousImage:(id)sender {
idx --;
if (idx == 2) {
self.imageView.image = [UIImage imageNamed:#"1-3.jpg"];
} else if (idx == 1) {
self.imageView.image = [UIImage imageNamed:#"1-2.jpg"];
} else if (idx == 0) {
self.imageView.image = [UIImage imageNamed:#"1-1.jpg"];
idx = 2;
}
}
- (IBAction)presentNextImage:(id)sender {
idx ++;
if (idx == 0) {
self.imageView.image = [UIImage imageNamed:#"1-2.jpg"];
} else if (idx == 1) {
self.imageView.image = [UIImage imageNamed:#"1-3.jpg"];
} else if (idx == 2) {
self.imageView.image = [UIImage imageNamed:#"1-1.jpg"];
idx = 0;
}
}