[英]Swift 4: Could not load NIB in bundle: 'NSBundle' for custom UITableViewCell (no IB)
我已经构建了我自己的 UITableViewCell(完全通过代码,没有界面构建器)并且我得到了空闲异常:
[...] NSInternalInconsistencyException',原因:'无法在包中加载 NIB:'NSBundle [...]
我相当确定我不需要使用awakeFromNib()(见代码)但这是我在将它作为“不可重用”传递时让它工作的唯一方法
// this works
func tableView(_ tableView: UITableView,
cellForRowAt indexPath: IndexPath [...] {
return myCustomCell()
// this fails
tableView.register(MyCustomCell.self, forCellReuseIdentifier: "foo")
//throws immediately after this line: "[...] Could not load NIB in bundle"
我的自定义单元格:
class TextValueTableViewCell: UITableViewCell {
let textField: UITextField = UITextField(
frame: CGRect(x: 30, y: 5, width: 350, height: 25)
)
let label = UILabel(frame: CGRect(x: 30, y: 5, width: 350, height: 25))
override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
self.awakeFromNib();
}
override func awakeFromNib() {
super.awakeFromNib()
self.label.text = "oh"
self.contentView.addSubview(self.label)
self.contentView.addSubview(self.textField)
self.textField.rightAnchor.constraint(equalTo: self.contentView.rightAnchor, constant: -25).isActive = true
self.textField.translatesAutoresizingMaskIntoConstraints = false;
self.textField.centerYAnchor.constraint(equalTo: self.contentView.centerYAnchor, constant: 0).isActive = true
self.textField.widthAnchor.constraint(equalTo: self.label.widthAnchor, constant: 0).isActive = true
self.textField.textAlignment = .right;
self.textField.placeholder = "Account Name"
}
override func setSelected(_ selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)!
}
}
正如我所说,我没有使用过界面构建器(我也没有打算使用它)所以我不确定为什么它会尝试从包中加载一些东西。 具体来说,我不需要将其注册为 NIB 吗?
tableView.register(<#T##nib: UINib?##UINib?#>, forCellReuseIdentifier: <#T##String#>)
class TextValueTableViewCell: UITableViewCell {
let textField: UITextField = UITextField(
frame: CGRect(x: 30, y: 5, width: 350, height: 25)
)
let label = UILabel(frame: CGRect(x: 30, y: 5, width: 350, height: 25))
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)!
setupCell()
}
override init(style: UITableViewCell.CellStyle, reuseIdentifier: String?) {
super.init(style: style, reuseIdentifier: reuseIdentifier)
setupCell()
}
func setupCell() {
label.text = "oh"
contentView.addSubview(label)
contentView.addSubview(textField)
textField.rightAnchor.constraint(equalTo: contentView.rightAnchor, constant: -25).isActive = true
textField.translatesAutoresizingMaskIntoConstraints = false;
textField.centerYAnchor.constraint(equalTo: contentView.centerYAnchor, constant: 0).isActive = true
textField.widthAnchor.constraint(equalTo: label.widthAnchor, constant: 0).isActive = true
textField.textAlignment = .right;
textField.placeholder = "Account Name"
}
override func setSelected(_ selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
}
}
例如,如果您使用 UIViewController 类名作为 TextPicker 那么您需要使用像波纹管代码
let bundle = Bundle(for: TextPicker.self)
super.init(nibName: "TextPicker" , bundle: bundle)
如果您在其他项目中使用带有 Xib 的 TableView 作为框架
tableView.register(UINib.init(nibName: "TextPickerCell", bundle: bundle), forCellReuseIdentifier: "TextPickerCell")
let bundle = Bundle(for: TextPicker.self)
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