Width of contentView in UITableViewCell is different for each cell - ios

Question

In an UITableViewController defined in a Storyboard with Auto Layout enabled, a UITableViewCell subclass is created programatically (no IB prototype cell) and sets constraints through updateConstraints using PureLayout.
For some reason, the table view has each contentView with a different width, instead of using the const width of UITableView.
Here's the init and updateConstraints method of UITableViewCell subclass -
- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier {
self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
if (self) {
self.contentView.translatesAutoresizingMaskIntoConstraints = NO;
_nameLabel = [GTPaddedLabel newAutoLayoutView];
_nameLabel.font = [BQFontUtil standardFontSize:StandardFontSize1a bold:YES italic:NO];
_nameLabel.textColor = [UIColor blackColor];
_drugType = [UILabel newAutoLayoutView];
_drugType.font = [BQFontUtil standardFontSize:StandardFontSize0 bold:NO italic:NO];
_drugType.textColor = [UIColor darkGrayColor];
_drugType.textAlignment = NSTextAlignmentRight;
_genericsLabel = [UILabel newAutoLayoutView];
_genericsLabel.font = [BQFontUtil standardFontSize:StandardFontSize0 bold:NO italic:NO];
_genericsLabel.textColor = [UIColor darkGrayColor];
_regimen = [UILabel newAutoLayoutView];
_regimen.font = [BQFontUtil standardFontSize:StandardFontSize0 bold:NO italic:NO];
_regimen.textColor = [UIColor darkGrayColor];
[self.contentView addSubview:_nameLabel];
[self.contentView addSubview:_drugType];
[self.contentView addSubview:_genericsLabel];
[self.contentView addSubview:_regimen];
self.contentView.backgroundColor = [UIColor redColor];
}
return self;
}
- (void)updateConstraints {
if (!constraintsCreated) {
// [self.contentView autoPinEdgesToSuperviewEdgesWithInsets:UIEdgeInsetsMake(0, 0, 0, 0)];
[UIView autoSetPriority:UILayoutPriorityRequired forConstraints:^{
[_nameLabel autoSetContentCompressionResistancePriorityForAxis:ALAxisVertical];
}];
[_nameLabel autoPinEdgesToSuperviewEdgesWithInsets:UIEdgeInsetsMake(8, 8, 0, 8) excludingEdge:ALEdgeBottom];
[_genericsLabel autoPinEdgeToSuperviewEdge:ALEdgeLeading withInset:16];
[_genericsLabel autoPinEdge:ALEdgeTop toEdge:ALEdgeBottom ofView:_nameLabel withOffset:4];
[_genericsLabel autoSetDimension:ALDimensionHeight toSize:21];
[_drugType autoPinEdgeToSuperviewEdge:ALEdgeTrailing withInset:16];
[_drugType autoPinEdge:ALEdgeTop toEdge:ALEdgeBottom ofView:_nameLabel withOffset:4];
[_drugType autoPinEdge:ALEdgeLeading toEdge:ALEdgeTrailing ofView:_genericsLabel withOffset:8];
[_drugType autoSetDimension:ALDimensionHeight toSize:21];
[_regimen autoPinEdge:ALEdgeTop toEdge:ALEdgeBottom ofView:_genericsLabel withOffset:2];
[_regimen autoSetDimension:ALDimensionHeight toSize:21];
[_regimen autoPinEdgeToSuperviewEdge:ALEdgeTrailing withInset:16];
[_regimen autoPinEdgeToSuperviewEdge:ALEdgeLeading withInset:16];
[_regimen autoPinEdgeToSuperviewEdge:ALEdgeBottom withInset:8];
constraintsCreated = YES;
}
[super updateConstraints];
}
Why does contentView (brown color) doesn't have the same width as the table view?

Answer 1

Maybe that's a workaround, it works well when I'm constraining contentView's width to cell's width -
- (void)updateConstraints {
if (!constraintsCreated) {
[self.contentView autoSetDimension:ALDimensionWidth toSize:self.frame.size.width];
...
}
}