Programmatically linked buttons - ios

Question

I am designing an app that requires me to have a grid of buttons each with four different states. Unselected, Selected, Hit, or Miss. I am trying to generate these buttons programatically but I am having trouble having just one of them remain selected. Is there a way that maybe I could put them into an array and then iterate over the array to unselect them? I looked into IBOutletCollections but those will not work because I want to create these buttons programmatically

Answer 1

I think maybe you should check this demo I've learned in Developing iOS 7 Apps for iPhone and iPad cs193p.
https://github.com/elilien/Matchismo

Answer 2

This worked for me where _lastSelectedButton is the id of the last selected button and the width is 25
-(void)unselect
{
if(_lastSelectedButton){
//Unselect the last selected button However only change its background if is blue
[[_lastSelectedButton layer] setBorderWidth:0.0f];
if([_lastSelectedButton.titleLabel.text isEqual: #"0"]){
[[_lastSelectedButton layer] setBackgroundColor:[missColor CGColor]];
}else if([_lastSelectedButton.titleLabel.text isEqual: #"/"]){
[[_lastSelectedButton layer] setBackgroundColor: [hitColor CGColor]];
}
else{
[[_lastSelectedButton layer] setBackgroundColor:unselectedColor.CGColor];
}
}
_lastSelectedButton = nil;
}
- (void)advanceSelection:(UIButton*)sender
{
int i = 0;
//Find the indice that the present selected thing is
for( UIButton *button in btnList )
{
if( sender == button )
{
if((i >= (self.numberOfPlayers - 1) * width) &&(( i + 1) % 5 == 0)){
//Then animated scroll to the next frame
if (i + 1 == self.numberOfPlayers * width) {
//then it is the last button
[self unselect];
}else{
CGFloat x = (([_pageControl currentPage] + 1.0 ) * 320.0);
[_scrollView setContentOffset:CGPointMake(x, 0.0f) animated:YES];
[self selection:btnList[i - (width * (self.numberOfPlayers - 1)) + 1]];
[self scrollViewDidEndDecelerating:self.scrollView];
self.pageControl.currentPage = _pageControl.currentPage + 1;
}
}else if(i >= ((self.numberOfPlayers - 1) * width)){
//We want to move it up one
//subtract width times hieght and ad one
[self selection:btnList[i - (width * (self.numberOfPlayers - 1)) + 1]];
}else{
//To go one down add 25 (the width)
[self selection:btnList[i + 25]];
}
}
i++;
}
}