UITableViewCell UITapGestureRecognizer not responding - objective-c

Question

I am a beginner with Objective-C and I am working on existing code base.
In the following code, UITapGestureRecognizer doesn't seem to trigger tap method. I have tried adding
[self setUserInteractionEnabled:YES];
Can anyone help me figure out what is not working here.
This is my UITableViewCell implementation class:
#interface ELCAssetCell ()
#property(nonatomic, strong) NSArray * rowAssets;
#property(nonatomic, strong) NSMutableArray * rowViews;
#end
#implementation ELCAssetCell
#synthesize rowAssets;
- (id)initWithReuseIdentifier:(NSString *)_identifier cellWidth:(CGFloat)width {
if (self = [super initWithStyle:UITableViewCellStyleDefault reuseIdentifier:_identifier]) {
self.rowViews = [[NSMutableArray alloc] init];
for (int i = 0; i < 4; i++) {
[self.rowViews addObject:[[AssetView alloc] initWithFrame:CGRectZero]];
}
for (AssetView * view in self.rowViews) {
[self addSubview:view];
}
_width = width;
}
return self;
}
- (void)layoutSubviews {
[super layoutSubviews];
CGFloat itemWidth = _width / 4;
CGRect frame = CGRectMake(2, 2, itemWidth - 4, itemWidth - 4);
for (AssetView * view in self.rowViews) {
[view setFrame:frame];
[[view gestureRecognizers] enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL
*stop) {
[view removeGestureRecognizer:obj];
}];
[view addGestureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:self
action:#selector(tap:)]];
frame.origin.x += itemWidth;
}
}
- (void)tap:(UITapGestureRecognizer *)gest {
[self.delegate assetPressed:[(AssetView *)[gest view] asset]];
[(AssetView *)[gest view] toggleSelection];
}
#end

Answer 1

The most likely problem is that you are adding the views to the cell itself -- they should be added to the cell's contentView.
Change:
for (AssetView * view in self.rowViews) {
[self addSubview:view];
}
to:
for (AssetView * view in self.rowViews) {
[self.contentView addSubview:view];
}
Aside from that, this looks absolutely terrible!
you should be using auto-layout instead of setting frames
layoutSubviews can be called multiple times... you should be adding the UITapGestureRecognizer when you create the views, not removing / re-adding every time layoutSubviews is called.