Detect button click event on customcell - ios

Question

I have added a custom cell as follows for stepper progress. UI perspective, it looks what I want, but I could not able to figure out how I could able to determine whether or not button has been clicked.
I have inspired via https://github.com/yenbekbay/AYStepperView, but this one has PageViewController which I could not able to add it in the tableCell.
#import "StepperProgressTableViewCell.h"
#import "AYStepperView.h"
static CGFloat const kFormStepperViewHeight = 80;
#interface StepperProgressTableViewCell ()
#property (nonatomic) AYStepperView *stepperView;
#property (nonatomic) NSUInteger currentIndex;
#property (nonatomic) NSUInteger currentStep;
#end
#implementation StepperProgressTableViewCell
- (void)awakeFromNib {
[super awakeFromNib];
// Initialization code
[self setUpViews];
self.currentIndex = 0;
self.currentStep = 0;
}
- (void)setSelected:(BOOL)selected animated:(BOOL)animated {
[super setSelected:selected animated:animated];
}
#pragma mark Private
- (void)setUpViews {
self.stepperView = [[AYStepperView alloc]initWithFrame:CGRectMake(0, 40 , self.frame.size.width, kFormStepperViewHeight)
titles:#[NSLocalizedString(#"Start", nil),
NSLocalizedString(#"Cooking", nil),
NSLocalizedString(#"Ready", nil)]];
self.stepperView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleTopMargin;
self.stepperView.userInteractionEnabled = YES;
[self addSubview:self.stepperView];
self.containerView = [[UIView alloc] initWithFrame:CGRectMake(0, CGRectGetMaxY(self.stepperView.frame), CGRectGetWidth(self.bounds), CGRectGetHeight(self.bounds) - CGRectGetMaxY(self.stepperView.frame))];
[self addSubview:self.containerView];
}
#end
AYStepperView.m
#import "AYStepperView.h"
#import <pop/POP.h>
static UIEdgeInsets const kStepperViewPadding = {
15, 0, 15, 0
};
static CGFloat const kStepperLabelsSpacing = 10;
static CGFloat const kStepperPipeHeight = 5;
#interface AYStepperView ()
#property (nonatomic) UIView *pipeView;
#property (nonatomic) UIView *labelsView;
#property (nonatomic) UIView *pipeBackgroundView;
#property (nonatomic) UIView *pipeFillView;
#property (nonatomic) NSMutableArray *stepLabels;
#end
#implementation AYStepperView
#pragma mark Initialization
- (instancetype)initWithFrame:(CGRect)frame titles:(NSArray *)titles {
self = [super initWithFrame:frame];
if (!self) {
return nil;
}
_titles = titles;
self.backgroundColor = [UIColor colorWithRed:0.98f green:0.98f blue:0.98f alpha:1];
self.tintColor = [UIColor colorWithRed:0.2f green:0.29f blue:0.37f alpha:1];
self.pipeView = [[UIView alloc] initWithFrame:CGRectMake(kStepperViewPadding.left, kStepperViewPadding.top, CGRectGetWidth(self.bounds) - kStepperViewPadding.left - kStepperViewPadding.right, CGRectGetHeight(self.bounds) / 2 - kStepperViewPadding.top)];
[self addSubview:self.pipeView];
self.labelsView = [[UIView alloc] initWithFrame:CGRectMake(kStepperViewPadding.left, CGRectGetMaxY(self.pipeView.frame) + kStepperViewPadding.top, CGRectGetWidth(self.bounds) - kStepperViewPadding.left - kStepperViewPadding.right, CGRectGetHeight(self.bounds) / 2 - kStepperViewPadding.top - kStepperViewPadding.bottom)];
[self addSubview:self.labelsView];
self.pipeBackgroundView = [[UIView alloc] initWithFrame:CGRectMake(0, (CGRectGetHeight(self.pipeView.bounds) - kStepperPipeHeight) / 2, CGRectGetWidth(self.pipeView.bounds), kStepperPipeHeight)];
self.pipeBackgroundView.backgroundColor = [UIColor lightGrayColor];
[self.pipeView addSubview:self.pipeBackgroundView];
CGRect pipeFillViewFrame = self.pipeBackgroundView.frame;
pipeFillViewFrame.size.width = 0;
self.pipeFillView = [[UIView alloc] initWithFrame:pipeFillViewFrame];
self.pipeFillView.backgroundColor = self.tintColor;
[self.pipeView addSubview:self.pipeFillView];
_stepButtons = [NSMutableArray new];
_stepLabels = [NSMutableArray new];
for (NSUInteger i = 0; i < titles.count; i++) {
UIButton *stepButton = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, CGRectGetHeight(self.pipeView.bounds), CGRectGetHeight(self.pipeView.bounds))];
stepButton.center = CGPointMake(CGRectGetWidth(self.pipeView.bounds) * (i + 0.5f) / titles.count, stepButton.center.y);
stepButton.clipsToBounds = YES;
stepButton.tag = i;
stepButton.layer.cornerRadius = CGRectGetHeight(stepButton.bounds) / 2;
stepButton.backgroundColor = [UIColor lightGrayColor];
[self.pipeView addSubview:stepButton];
[self.stepButtons addObject:stepButton];
UILabel *stepLabel = [UILabel new];
stepLabel.font = [UIFont systemFontOfSize:[UIFont smallSystemFontSize]];
stepLabel.textColor = self.tintColor;
stepLabel.textAlignment = NSTextAlignmentCenter;
stepLabel.text = titles[i];
stepLabel.numberOfLines = 0;
stepLabel.frame = (CGRect) {
stepLabel.frame.origin, [stepLabel sizeThatFits:CGSizeMake(CGRectGetWidth(self.pipeView.bounds) / titles.count - kStepperLabelsSpacing, 0)]
};
stepLabel.center = CGPointMake(CGRectGetWidth(self.labelsView.bounds) * (i + 0.5f) / titles.count, CGRectGetHeight(self.labelsView.bounds) / 2);
[self.labelsView addSubview:stepLabel];
[self.stepLabels addObject:stepLabel];
}
_currentStepIndex = 0;
[self completeStepAtIndex:0 until:1 completionBlock:nil];
return self;
}
#pragma mark Public
- (void)updateCurrentStepIndex:(NSUInteger)currentStepIndex completionBlock:(void (^)())completionBlock {
if (currentStepIndex >= self.titles.count || currentStepIndex == self.currentStepIndex) {
if (completionBlock) {
completionBlock();
}
} else {
NSUInteger previousStepIndex = self.currentStepIndex;
_currentStepIndex = currentStepIndex;
if ((NSInteger)currentStepIndex - (NSInteger)previousStepIndex > 0) {
[self completeStepAtIndex:previousStepIndex + 1 until:currentStepIndex + 1 completionBlock:completionBlock];
} else {
[self uncompleteStepAtIndex:previousStepIndex until:currentStepIndex - 1 completionBlock:completionBlock];
}
}
}
#pragma mark Setters
- (void)setTintColor:(UIColor *)tintColor {
_tintColor = tintColor;
self.pipeFillView.backgroundColor = tintColor;
for (UILabel *label in self.stepLabels) {
label.textColor = tintColor;
}
[self.stepButtons[self.currentStepIndex] setBackgroundColor:tintColor];
}
#pragma mark Private
- (void)completeStepAtIndex:(NSUInteger)index until:(NSUInteger)until completionBlock:(void (^)())completionBlock {
if (index == until) {
if (completionBlock) {
completionBlock();
}
} else {
[UIView animateWithDuration:0.2f animations:^{
CGRect pipeFillViewFrame = self.pipeFillView.frame;
NSLog(#"%lu, %lu",until, index);
if(index == _titles.count - 1)
{
pipeFillViewFrame.size.width = CGRectGetWidth(self.pipeBackgroundView.bounds) * (index + 1.0f) / self.titles.count;
}
else
{
pipeFillViewFrame.size.width = CGRectGetWidth(self.pipeBackgroundView.bounds) * (index + 0.5f) / self.titles.count;
}
self.pipeFillView.frame = pipeFillViewFrame;
} completion:^(BOOL finishedWidthAnimation) {
[self completeStepAtIndex:index + 1 until:until completionBlock:completionBlock];
UIView *stepButton = self.stepButtons[index];
stepButton.backgroundColor = self.tintColor;
POPSpringAnimation *scaleAnimation = [POPSpringAnimation animationWithPropertyNamed:kPOPLayerScaleXY];
scaleAnimation.velocity = [NSValue valueWithCGSize:CGSizeMake(3.f, 3.f)];
scaleAnimation.toValue = [NSValue valueWithCGSize:CGSizeMake(1.f, 1.f)];
scaleAnimation.springBounciness = 5.f;
[stepButton.layer pop_addAnimation:scaleAnimation forKey:#"scaleAnimation"];
}];
}
}
- (void)uncompleteStepAtIndex:(NSUInteger)index until:(NSUInteger)until completionBlock:(void (^)())completionBlock {
if (index == until) {
if (completionBlock) {
completionBlock();
}
} else {
if (index > until + 1) {
UIView *stepButton = self.stepButtons[index];
stepButton.backgroundColor = [UIColor lightGrayColor];
POPSpringAnimation *scaleAnimation = [POPSpringAnimation animationWithPropertyNamed:kPOPLayerScaleXY];
scaleAnimation.velocity = [NSValue valueWithCGSize:CGSizeMake(3.f, 3.f)];
scaleAnimation.toValue = [NSValue valueWithCGSize:CGSizeMake(1.f, 1.f)];
scaleAnimation.springBounciness = 5.f;
[stepButton.layer pop_addAnimation:scaleAnimation forKey:#"scaleAnimation"];
}
[UIView animateWithDuration:0.2f animations:^{
CGRect pipeFillViewFrame = self.pipeFillView.frame;
pipeFillViewFrame.size.width = CGRectGetWidth(self.pipeBackgroundView.bounds) * (index + 0.5f) / self.titles.count;
self.pipeFillView.frame = pipeFillViewFrame;
} completion:^(BOOL finishedWidthAnimation) {
[self uncompleteStepAtIndex:index - 1 until:until completionBlock:completionBlock];
}];
}
}
#end

Answer 1

If you want to catch events from a cell to the view controller, the simplest way is to create a protocol and set the view controller as the cell's delegate. I'm sure there are many similar questions here that can help you like this one for example.