Question

尝试从UITableView

加载XIB标头时遇到问题

在我已实施的viewDidLoad()方法中：

let tableHeaderView = NSBundle.mainBundle().loadNibNamed(
    "MyCustomHeader",
    owner: nil,
    options: nil
).first as! MyCustomHeader

tableHeaderView.translatesAutoresizingMaskIntoConstraints = false

tableView.tableHeaderView = tableHeaderView

调试器显示，tableHeaderView初始化为正确的帧。

虽然在viewDidLayoutSubviews()内，tableHeaderView身高坐到0.0。

如何避免这种自动调整大小？

Answer 1

试试这个：

let view = (NSBundle.mainBundle().loadNibNamed("MenuHeader", owner: self, options: nil)[0] as? UIView)
tableView.tableHeaderView = view

https://stackoverflow.com/a/38450753/3901620

Answer 2

可以再次应用标题高度。试试这个，

let tableHeaderView = NSBundle.mainBundle().loadNibNamed(
        "MyCustomHeader",
        owner: nil,
        options: nil
    ).first as! MyCustomHeader

    tableHeaderView.translatesAutoresizingMaskIntoConstraints = false
    tableHeaderView.setNeedsLayout()
    tableHeaderView.layoutIfNeeded()
    let height = tableHeaderView.systemLayoutSizeFittingSize(UILayoutFittingCompressedSize).height
    var frame = tableHeaderView.frame
    tableHeaderView.size.height = height
    tableHeaderView.frame = frame
    tableView.tableHeaderView = tableHeaderView

从XIB加载的iOS UITableView标头

2 个答案: