Ios 文本标签颜色在我滚动UiTableView时自动更改
我在Ios 文本标签颜色在我滚动UiTableView时自动更改,ios,swift,uitableview,textlabel,Ios,Swift,Uitableview,Textlabel,我在didSelectRowAt上更改文本标签颜色,但当我滚动UITableView时,它也会影响其他文本标签的颜色 func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) { let cell = tableView.cellForRow(at: indexPath) as! TableViewCell if (cell.LBLIntrest.textColor == (UICol
didSelectRowAt
上更改文本标签颜色,但当我滚动UITableView
时,它也会影响其他文本标签的颜色
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
let cell = tableView.cellForRow(at: indexPath) as! TableViewCell
if (cell.LBLIntrest.textColor == (UIColor.black))
{
cell.LBLIntrest.textColor = Uicolor.blue
} else {
cell.LBLIntrest.textColor = Uicolor.black
}
}
这应该对你有用
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
let cell = tableView.cellForRow(at: indexPath) as! TableViewCell
setSelectedColor(cell: cell)
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
...
...
if let selectedRows = tableView.indexPathsForSelectedRows, selectedRows.contains(indexPath) {
setSelectedColor(cell: cell)
}
return cell
}
func setSelectedColor(cell: UITableViewCell) {
if (cell.LBLIntrest.textColor == (UIColor.black)) {
cell.LBLIntrest.textColor = Uicolor.blue
} else {
cell.LBLIntrest.textColor = Uicolor.black
}
}
但是,我建议将cell.LBLIntrest.textColor=Uicolor.blue
移动到func-setSelected(uuu-selected:Bool,animated:Bool)
方法下的UITableViewCell
class TableViewCell: UITableViewCell {
override func setSelected(_ selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
// label textColor logic goes here
// make use of selected
}
}
首先,您必须创建属性来保存选定的单元格,如下所示
/* To hold selected cell */
var selectedIndexPath :IndexPath?
之后,在单元格中设置选定单元格的颜色
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
if let cell = tableView.dequeueReusableCell(withIdentifier: "cell") {
cell.textLabel?.text = "Row Number: \(indexPath.row)"
/* Check if cell is selected then set layout accourding to your requirements */
if indexPath == selectedIndexPath {
cell.textLabel?.textColor = .blue
} else {
cell.textLabel?.textColor = .black
}
return cell
}
return UITableViewCell()
}
在此之后,当用户在didSelectRowAt中选择单元格时进行管理
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
// Toggle if user seleted same cell
if selectedIndexPath == indexPath {
if let cell = tableView.cellForRow(at: indexPath) {
/* Check and toggle selected cell color */
cell.textLabel?.textColor = cell.textLabel?.textColor == .black ? .blue : .black
}
} else {
/* set color of seleted cell */
if let cell = tableView.cellForRow(at: indexPath) {
cell.textLabel?.textColor = .blue
}
}
/* Save which cell is selected */
selectedIndexPath = indexPath
}
override func tableView(_ tableView: UITableView, didDeselectRowAt indexPath: IndexPath) {
/* Remove if deselect same cell */
if selectedIndexPath == indexPath {
selectedIndexPath = nil
}
/* Change color to black */
if let cell = tableView.cellForRow(at: indexPath) {
cell.textLabel?.textColor = .black
}
}
最后一次管理取消了rowat
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
// Toggle if user seleted same cell
if selectedIndexPath == indexPath {
if let cell = tableView.cellForRow(at: indexPath) {
/* Check and toggle selected cell color */
cell.textLabel?.textColor = cell.textLabel?.textColor == .black ? .blue : .black
}
} else {
/* set color of seleted cell */
if let cell = tableView.cellForRow(at: indexPath) {
cell.textLabel?.textColor = .blue
}
}
/* Save which cell is selected */
selectedIndexPath = indexPath
}
override func tableView(_ tableView: UITableView, didDeselectRowAt indexPath: IndexPath) {
/* Remove if deselect same cell */
if selectedIndexPath == indexPath {
selectedIndexPath = nil
}
/* Change color to black */
if let cell = tableView.cellForRow(at: indexPath) {
cell.textLabel?.textColor = .black
}
}
此代码用于一次选择单元格,因此您必须设置
tableView.allowsMultipleSelection = false
希望这能有所帮助。之所以会出现这种情况,是因为当您滚动UITableView时,单元格会出列并被tableView重用。因此,您必须在cellForRowAt delegateI中将该单元格的颜色重置为初始颜色。我还添加了一个答案,请检查。@AbdulRehmanWarraich yup bro其工作谢谢,但是多选呢?