[英]How do select a row from each section of the tableview in swift?
I want to select a row from different sections of the same table-view. 我想从同一个表视图的不同部分中选择一行。 I am getting output that many rows are selecting but I want exactly only one selected row from each section. 我正在获取许多行正在选择的输出,但我只想从每个部分中选择一行。
Here is My Arrays: 这是我的阵列:
var filterFeedUnderAll = ["Complex","NotComplex","Easy"]
var filterFeedUnderAllStocks = ["AllStocks","Portfolio","Watchlist","Sector","Ticker"]
var filterFeedUnderByDate = ["ByDate","ByComments","ByLikes"]
The methods I have used: 我用过的方法:
func numberOfSectionsInTableView(tableView: UITableView) -> Int
{
return 3
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int
{
var count:Int?
if section == 0
{
count = filterFeedUnderAll.count
}
else if section == 1
{
count = filterFeedUnderAllStocks.count
}
else if section == 2
{
count = filterFeedUnderByDate.count
}
return count!
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell
{
let cell = self.m_HomeFeedFilterBaseTableView.dequeueReusableCellWithIdentifier("cell1", forIndexPath: indexPath) as! HomeFeedFIlterBaseTableViewCell
switch (indexPath.section)
{
case 0:
cell.m_TableItemsLabel.text = filterFeedUnderAll[indexPath.row]
case 1:
cell.m_TableItemsLabel.text = self.filterFeedUnderAllStocks[indexPath.row]
case 2:
cell.m_TableItemsLabel.text = filterFeedUnderByDate[indexPath.row]
default:
cell.m_TableItemsLabel.text = "Other"
}
return cell
}
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath)
{
let cell = m_HomeFeedFilterBaseTableView.cellForRowAtIndexPath(indexPath) as! HomeFeedFIlterBaseTableViewCell
for selectedIndexPath: NSIndexPath in tableView.indexPathsForSelectedRows!
{
if selectedIndexPath.section == indexPath.section
{
cell.m_TableItemsLabel.textColor = selectedTextColor
tableView.deselectRowAtIndexPath(indexPath, animated: true)
}
}
}
I want to select one row from each section. 我想从每个部分中选择一行。 Help me to achieve this task. 帮助我完成这项任务。
first of all you need to enable multiple selection in your tableView
and then this is the code that I used to do that, note that I use a Dictionary
with format [String:NSIndexPath]
named selectedRows
where I store one indexPath by section I do this in addSelectedCellWithSection
首先你需要在tableView
启用多个选择,然后这是我以前做过的代码,请注意我使用格式为[String:NSIndexPath]
名为selectedRows
的Dictionary
,其中我按部分存储一个indexPath我这样做在addSelectedCellWithSection
UPDATED for last swift 最后一次快速更新
import UIKit
class ViewController: UIViewController,UITableViewDataSource,UITableViewDelegate,UITextFieldDelegate {
@IBOutlet weak var tableView: UITableView!
var filterFeedUnderAll = ["Complex","NotComplex","Easy"]
var filterFeedUnderAllStocks = ["AllStocks","Portfolio","Watchlist","Sector","Ticker","bla bla bla1","bla bla bla2","bla bla bla3","bla bla bla1","bla bla bla2","bla bla bla3","bla bla bla1","bla bla bla2","bla bla bla3"]
var filterFeedUnderByDate = ["ByDate","ByComments","ByLikes"]
var selectedRows = [String:IndexPath]()
var alert : UIAlertController?
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func numberOfSections(in tableView: UITableView) -> Int
{
return 3
}
func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
return 50;
}
func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
let headerCell = tableView.dequeueReusableCell(withIdentifier: "headerCell") as! mycustomHeader
let layer = CAShapeLayer()
let corners = UIRectCorner.topLeft.union(UIRectCorner.topRight)
layer.path = UIBezierPath(roundedRect: CGRect(x: 0, y: 0, width: headerCell.frame.width, height: headerCell.frame.height), byRoundingCorners: corners, cornerRadii:CGSize(width: 20.0, height: 20.0)).cgPath
headerCell.layer.mask = layer
return headerCell
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int
{
var count:Int?
if section == 0
{
count = filterFeedUnderAll.count
}
else if section == 1
{
count = filterFeedUnderAllStocks.count
}
else if section == 2
{
count = filterFeedUnderByDate.count
}
return count!
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell
{
let cell = self.tableView.dequeueReusableCell(withIdentifier: "cell1", for: indexPath) as! testCell
switch (indexPath.section)
{
case 0:
cell.lblName.text = filterFeedUnderAll[indexPath.row]
case 1:
cell.lblName.text = self.filterFeedUnderAllStocks[indexPath.row]
case 2:
cell.lblName.text = filterFeedUnderByDate[indexPath.row]
default:
cell.lblName.text = "Other"
}
cell.lblName.textColor = UIColor.black
if(self.indexPathIsSelected(indexPath)) {
cell.lblName.textColor = UIColor.red
}
return cell
}
func addSelectedCellWithSection(_ indexPath:IndexPath) ->IndexPath?
{
let existingIndexPath = selectedRows["\(indexPath.section)"]
selectedRows["\(indexPath.section)"]=indexPath;
return existingIndexPath
}
func indexPathIsSelected(_ indexPath:IndexPath) ->Bool {
if let selectedIndexPathInSection = selectedRows["\(indexPath.section)"] {
if(selectedIndexPathInSection.row == indexPath.row) { return true }
}
return false
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
let cell = self.tableView.cellForRow(at: indexPath) as! testCell
let previusSelectedCellIndexPath = self.addSelectedCellWithSection(indexPath);
if(previusSelectedCellIndexPath != nil)
{
let previusSelectedCell = self.tableView.cellForRow(at: previusSelectedCellIndexPath!) as! testCell
previusSelectedCell.lblName.textColor = UIColor.black
cell.lblName.textColor = UIColor.red
tableView.deselectRow(at: previusSelectedCellIndexPath!, animated: true)
}
else
{
cell.lblName.textColor = UIColor.red
}
for selectedIndexPath: IndexPath in tableView.indexPathsForSelectedRows!
{
if selectedIndexPath.section == indexPath.section
{
cell.lblName.textColor = UIColor.red
tableView.deselectRow(at: indexPath, animated: true)
}
}
}
}
Hope this helps you, for me works perfect 希望这对你有所帮助,对我来说是完美的
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