Question

I would like the action to do case 0 the first time it is clicked, then case 1, then 2… etc.

How would I go about that?

Thanks!

- (IBAction) cycleAction{
switch (??????){
    case 0:
            [self choice1];
        break;
    case 1:
        [self choice2];
        break;
    case 2:
        [self choice3];
        break;
    default:
        break;
}
}

Answer 1

You need an instance variable that keeps track of the next action to perform.

@implementation MyClass {
    int _nextActionNumber;
}

- (IBAction) cycleAction {
    int actionNumber = _nextActionNumber++;
    if (_nextActionNumber == NumberOfActions)
        _nextActionNumber = 0;
    switch (actionNumber) {
        case 0:
            [self action0];
            break;
        case 1:
            // etc.