Objective C : UIButton image with NSArray in a random order
- by Sarah
Brief Idea about the flow :
I have say minimum 1 and maximum 18 records in my database with a text and an image from which I have to fetch images and place any 3 of the same randomly to 3 UIButtons among which one image should match with my question. i.e. 1 is the answer and other 2 are the distractors.
For Example :
Question is : where is Apple? Now among the bunch of images, I want to place any 3 images on the 3 UIButtons(1 answer i.e. An Apple and 2 distractors) in a random order and on selecting the UIButton it should prompt me if it's a right answer or not.
I am implementing below code for placing the UIImages in a random order :
-(void) placeImages
{
NSMutableArray *images = [NSMutableArray arrayWithArray:arrImg];
NSArray *buttons = [NSArray arrayWithObjects:btn1,btn2,btn3, nil];
for (UIButton *btn in buttons)
{
int randomIndex= random() % images.count;
UIImage *img = [images objectAtIndex:randomIndex];
[btn setImage:img forState:UIControlStateNormal];
[images removeObjectAtIndex:randomIndex];
}
}
But I am stuck at a point that how should I get 1 UIButton image with an answer and other as distractors also that how should i maintain the index of the image from the NSArray? Kindly guide me. Thank you.
