ios 使用 Swift 设置自定义表格视图页脚
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Set a custom table view footer with Swift
提问by J.Doe
I am trying to set a custom footer to my table view. I created the footer on a nib file and created a controlled for it.
我正在尝试为我的表格视图设置自定义页脚。我在 nib 文件上创建了页脚并为其创建了一个控件。
class LoginTableFooter: UITableViewHeaderFooterView
In viewDidLoad()I wrote this code
在viewDidLoad()我写了这段代码
let footerNib = UINib(nibName: "LoginTableFooter", bundle: nil)
tableView.register(footerNib, forHeaderFooterViewReuseIdentifier: "LoginTableFooter")
Then I implemented viewForFooterInSection
然后我实现了 viewForFooterInSection
func tableView(_ tableView: UITableView, viewForFooterInSection section: Int) -> UIView? {
let cell = self.tableView.dequeueReusableHeaderFooterView(withIdentifier: "LoginTableFooter")
let header = cell as! LoginTableFooter
return cell
}
viewForFooterInSectionwas never called. I also tried to implement viewForHeaderInSectionbut it was also not called. Do you have an idea what is wrong? I have only one section in my table view; is it possible/better to set the footer directly on viewDidLoad?
viewForFooterInSection从未被调用。我也尝试实现，viewForHeaderInSection但也没有调用。你知道有什么问题吗？我的表格视图中只有一个部分；是否可以/更好地直接设置页脚viewDidLoad？
回答by Krunal
Implement - delegate & datasource for your tableview and set both - heightForFooterInSection& viewForFooterInSection
实现 - 为您的 tableview 委托和数据源并设置 - heightForFooterInSection&viewForFooterInSection
tableView.delegate = self
tableView.dataSource = self
// set view for footer
func tableView(_ tableView: UITableView, viewForFooterInSection section: Int) -> UIView? {
let footerView = UIView(frame: CGRect(x: 0, y: 0, width: tableView.frame.size.width, height: 40))
footerView.backgroundColor = UIColor.blue
return footerView
}
// set height for footer
func tableView(_ tableView: UITableView, heightForFooterInSection section: Int) -> CGFloat {
return 40
}
回答by Asaduzzaman Shuvro
//firstly you need to call the delegate and datasource of table view. i.e:
//首先你需要调用table view的delegate和datasource。IE：
tableView.delegate = self
tableView.dataSource = self
//you need to call this delegate
//你需要调用这个委托
func tableView(_ tableView: UITableView, heightForFooterInSection section: Int) -> CGFloat {
return "your expected footer height"
}
回答by Asaduzzaman Shuvro
Swift 3 Directly use > viewForFooterInSection
Swift 3 直接使用 > viewForFooterInSection
override func tableView(_ tableView: UITableView, viewForFooterInSection section: Int) -> UIView? {
let footerView = UIView(frame: CGRect(x: 0, y: 0, width: tableView.frame.size.width, height: 40))
footerView.backgroundColor = UIColor.red
return footerView
}
回答by navin
func tableView(_ tableView: UITableView, viewForFooterInSection section: Int) -> UIView? {
let footerView = UIView(frame: CGRect(x: 0, y: 0, width: tableView.frame.size.width, height: 40))
footerView.backgroundColor = UIColor.red
return footerView
}
