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iosloopsuibuttonhiddenuiswipegesturerecognizer

Use iOS SwipeGesture To Cycle through UIButtons

I have 6 UIButtons set up in my UIView, all in the exact same location. What I want to do, is to swipe from left to right or right to left, in order to go through the buttons.

I have the UIGestures all set up and working on the view, I am just not sure the best way to go about cycling through these UIButtons.

I was thinking that it could be simple enough to tag each UIButton and HIDE all but one, but am not sure about the best way to loop through these.

Solution

  • Just put them in an NSMutableArray and whatever button is at index 0 is the visible one, as they swipe you'd remove the button at index 0, set it to hidden = YES and add it to the end of the array then set the button at index 0's hidden = NO.

    Assuming you're using ARC, inside your class' implementation (.m) file:

    @interface MyFancyButtonClass () {
    NSMutableArray *_swipeButtons;
}

    inside your viewDidLoad:

    _swipeButtons = [NSMutableArray arrayWithObjects:buttonOne, buttonTwo, buttonThree, buttonFour, nil];
buttonOne.hidden = NO;
buttonTwo.hidden = buttonThree.hidden = buttonFour.hidden = YES;

    inside your gestureRecognizer:

    UIButton *currentVisibleButton = [_swipeButtons firstObject];
UIButton *nextVisibleButton = [_swipeButtons objectAtIndex:1];

[_swipeButtons removeObject:currentVisibleButton];
[_swipeButtons addObject:currentVisibleButton];

currentVisibleButton.hidden = YES;
nextVisibleButton.hidden = NO;