[英]How to button highlight and highlight colour is red in swift
如何显示按钮高亮显示颜色,并且颜色为红色
extension LeaveDetailVC: cellIndexCall{
func selectBtnIndex(sender: UIButton) {
let buttonPosition:CGPoint = sender.convert(.zero, to:leaveDetailTableView)
var indexPath = leaveDetailTableView.indexPathForRow(at: buttonPosition)
self.indexPath = indexPath!
print("\(String(describing: indexPath?.row))") /* index path of button
self.menuClickIndex = (indexPath?.row)!
}
}
我的Button覆盖了tableViewCell。 而且我还在单元格类中创建了一个按钮委托,并通过扩展调用viewController。
我只想突出显示按钮,该按钮位于单元格上方。
override func tableView(_ tableView: UITableView, shouldHighlightRowAt
indexPath: IndexPath) -> Bool {
return true
}
override func tableView(_ tableView: UITableView, didHighlightRowAt
indexPath:
IndexPath) {
let cell = tableView.cellForRow(at: indexPath)
cell?.contentView.backgroundColor = UIColor.orange
cell?.backgroundColor = UIColor.orange
}
override func tableView(_ tableView: UITableView, didUnhighlightRowAt
indexPath: IndexPath) {
let cell = tableView.cellForRow(at: indexPath)
cell?.contentView.backgroundColor = UIColor.black
cell?.backgroundColor = UIColor.black
}
在你的viewController中
class LeaveDetailVC: ViewController {
var selectedRows: [IndexPath] = [] // i assume multiple select button
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "YOUR_CELL") as! YOUR_CELL_CLASS
cell.isHighlight = selectedRows.indices.contains(indexPath) // Determine if cell was selected or not
}
}
extension LeaveDetailVC: cellIndexCall {
func selectBtnIndex(sender: UIButton) {
let buttonPosition:CGPoint = sender.convert(.zero, to:leaveDetailTableView)
var indexPath = leaveDetailTableView.indexPathForRow(at: buttonPosition)
if selectedRows.indices.contains(indexPath) {
if let index = selectedRows.index(of: indexPath) {
self.selectedRows.remove(at: index) // remove selected indexpath
}
} else {
self.selectedRows.append(indexPath) // add selected indexpath
}
}
}
在你的细胞班
var isHighlight: Bool = false
override func layoutSubviews() {
super.layoutSubviews()
// TODO : Set your button color based on isHighlight flag
}
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