I have tableViewCell, and it have UIButton. I set up constraints like that:
make.left.equalTo(contentView.snp.left).offset(16)
make.right.equalTo(contentView.snp.right).offset(-16)
make.bottom.equalTo(contentView.snp.bottom).offset(-46)
make.top.equalTo(contentView.snp.top).offset(24)
make.height.equalTo(64)
It does show button with correct height and set top and bottom offsets correct, but it print error log in console:
Unable to simultaneously satisfy constraints.
Probably at least one of the constraints in the following list is one you don't want.
Try this:
(1) look at each constraint and try to figure out which you don't expect;
(2) find the code that added the unwanted constraint or constraints and fix it.
(
"<SnapKit.LayoutConstraint:0x6000002a34e0@RoundedButtonCell.swift#49 POS2.MSButton:0x7faf22c674b0.bottom == UITableViewCellContentView:0x7faf22c672c0.bottom - 46.0>",
"<SnapKit.LayoutConstraint:0x6000000b8600@RoundedButtonCell.swift#50 POS2.MSButton:0x7faf22c674b0.top == UITableViewCellContentView:0x7faf22c672c0.top + 24.0>",
"<SnapKit.LayoutConstraint:0x6000002a3de0@RoundedButtonCell.swift#51 POS2.MSButton:0x7faf22c674b0.height == 64.0>",
"<NSLayoutConstraint:0x604000484420 'UIView-Encapsulated-Layout-Height' UITableViewCellContentView:0x7faf22c672c0.height == 134 (active)>"
)
Will attempt to recover by breaking constraint
<SnapKit.LayoutConstraint:0x6000002a3de0@RoundedButtonCell.swift#51 POS2.MSButton:0x7faf22c674b0.height == 64.0>
I suppose it somehow "dont like" that i set UIButton height with constant, and set top and bottom offsets. How to fix that?
PS. My controller is UITableViewController, i configure tableView like that:
private func setupTable() {
tableView.estimatedRowHeight = 40
tableView.rowHeight = UITableViewAutomaticDimension
tableView.separatorInset = .zero
tableView.separatorColor = .clear
tableView.keyboardDismissMode = .onDrag
tableView.tableFooterView = nil
tableView.tableHeaderView = nil
tableView.delegate = self
tableView.dataSource = self
tableView.register(RadioButtonCell.self, forCellReuseIdentifier: MSTableViewCellType.radioButtonCell.rawValue)
tableView.register(InputViewCell.self, forCellReuseIdentifier: MSTableViewCellType.inputViewCell.rawValue)
tableView.register(CommentViewCell.self, forCellReuseIdentifier: MSTableViewCellType.commentViewCell.rawValue)
tableView.register(RoundedButtonCell.self, forCellReuseIdentifier: MSTableViewCellType.roundedButtonViewCell.rawValue)
}
setupTable
is called in viewDidLoad
In cellForRow:
case .roundedButton:
let cell = tableView.dequeueReusableCell(withIdentifier: MSTableViewCellType.roundedButtonViewCell.rawValue, for: indexPath) as! RoundedButtonCell
guard let model = fieldModel as? TextContainViewModel else { return UITableViewCell()}
cell.setup(title: model.title)
cell.contentView.layoutMargins = UIEdgeInsets(top: 24, left: 16, bottom: 46, right: 16)
cell.layoutIfNeeded()
return cell
}
I did not override heightForRowAtIndexPath.
The problem is that you are already setting the cell (row) height explicitly. You cannot dictate the row height explicitly and also provide a complete set of full priority vertical constraints. Do one or the other. Either size the row explicitly and provide incomplete constraints, or provide complete constraints and tell the row to size itself automatically.
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