Cycling through Image Array within Object in Time Intervals (Objective-C) - objective-c

Question

My general question is how do you have an object with an image array:
#import <Foundation/Foundation.h>
#interface Object: NSObject {
UIImage *image[imageNumber];
}
And then take these images and apply them to a button in a different class, starting with imageArray[0] and every few seconds changing it to imageArray[1], etc, but stopping the loop at the last image.
What I specifically did was create a Plant object:
#import <Foundation/Foundation.h>
#interface Plant : NSObject {
UIImage *plantImage[3];
int imageNumber; //to specify which image to display, increments with timer
NSTimer *plantImageTimer;
}
and declared then made a few methods like
-(void)addPlantImages:(UIImage *) firstImage withPlantImage2:(UIImage *) secondImage withPlantImage3:(UIImage *) thirdImage{
plantImage[0] = firstImage;
plantImage[1] = secondImage;
plantImage[2] = thirdImage;
}
//this makes the Plant into a button
-(void)createPlantButtonForPlant:(Plant *) plantType forView:(UIView *) view withButtonRect:(CGRect) buttonRect{
imageNumber=0;
UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
button.frame = buttonRect;
button.hidden = NO;
[view addSubview:button];
[plantType growPlant:button]; //explained in code below
}
And from here I don't know what to do anymore.
I tried using an NSTimer, but you can't put parameters into the selector, so I can't specify which button (or Plant) I want to cycle images through.
Extra tidbits of code in Plant that I have (which do not work); I'm using NSTimer userinfo incorrectly, but I don't understand how to use it, to be honest.
-(void)growPlant:(UIButton *) button{
plantImageTimer = [NSTimer scheduledTimerWithTimeInterval:2 target:self selector:#selector(changePlantImage:) userInfo:button repeats:YES];
}
-(void)changePlantImage: (UIButton *) plantButton{
if(imageNumber == 3){
[plantImageTimer invalidate];
} else {
[plantButton setImage:plantImage[imageNumber] forState:UIControlStateNormal];
imageNumber++;
}
}
I imported Plant into my view controller (called PracticeViewController) and tried to make it so that when I clicked a button, a Plant button popped up and cycled through the images.
(void)buttonAction{
theButton.hidden = YES; //I did make this button, just didn't add the code here. Declared in header.
CGRect imageViewRect = CGRectMake(100, 100, 100, 100);
Plant *testPlant = [Plant new];
[testPlant addPlantImages:[UIImage imageNamed:#"plant2.png"] withPlantImage2:[UIImage imageNamed:#"plant2.png"] withPlantImage3:[UIImage imageNamed:#"plant2.png"];
[testPlant createButtonForPlant:testPlant forView:self.view withButtonRect:imageViewRect];
}
If you need more code or other information, just comment below and I will reply asap.

Answer 1

Now that I've done more programming, I realize how complicated I made this code lol. Anyway, all I would have had to do was add
[button addTarget:self action:#selector(changePlantImage) forControlEvents:UIControlEventTouchUpInside];
after making the button instance. This would then scroll through whichever images the plant had in its array.