我是ios swift 2.2的新手。我尝试使用自定义单元格xib创建一个表视图。我在表格视图中填充了一些数据。我还添加了一个自定义复选框按钮。我正在为该复选框按钮创建单独的类。现在当我点击我的customcell.xib中的按钮时。但是当我点击我的单元格时，我的复选框没有改变。我需要两者兼得。当我点击我的按钮时，它应该更改为选中并取消选中图像。当我点击我的单元格时，我还需要更改我的按钮以选中或取消选中图像
当我向下滚动并再次回到顶部时，我检查的图像会自动切换到正常检查框。
我需要做一些动作，所以为此。当我点击任何单元格时，我的复选框应该检查并取消选中。而且我需要知道哪个行单元格已经检查过图像。这样我就可以单独对我选中的图像行单元格执行某些操作。
这是我的自定义复选框类：
import UIKit
class CheckBoxButton: UIButton {
// Images
let checkedImage = UIImage(named: "CheckBoxChecked")! as UIImage
let uncheckedImage = UIImage(named: "CheckBoxUnChecked")! as UIImage
// Bool property
var isChecked: Bool = false {
didSet{
if isChecked == true {
self.setImage(checkedImage, forState: .Normal)
} else {
self.setImage(uncheckedImage, forState: .Normal)
}
}
}
override func awakeFromNib() {
self.addTarget(self, action: #selector(CheckBoxButton.buttonClicked(_:)), forControlEvents: UIControlEvents.TouchUpInside)
self.isChecked = false
}
func buttonClicked(sender: UIButton) {
if sender == self {
if isChecked == true {
isChecked = false
} else {
isChecked = true
}
}
}
}
Cutom cell.xib类：
import UIKit
class FavCell: UITableViewCell {
@IBOutlet weak var FLabel1: UILabel!
@IBOutlet weak var FLabel2: UILabel!
@IBOutlet weak var checkbox: CheckBoxButton!
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
}
@IBAction func checkboxpress(sender: AnyObject) {
}
}
我的viewcontroller.swift
import UIKit
class FavVC: UIViewController {
@IBOutlet weak var FavTableView: UITableView!
//var FData = [FavouritesData]()
var arrDict :NSMutableArray=[]
let cellSpacingHeight: CGFloat = 5 // cell spacing from each cell in table view
override func viewDidLoad() {
super.viewDidLoad()
self.jsonParsingFromURL()
let nib = UINib(nibName:"FavCell", bundle: nil)
FavTableView.registerNib(nib, forCellReuseIdentifier: "FCell")
}
// web services method
func jsonParsingFromURL ()
{
// let token = NSUserDefaults.standardUserDefaults().valueForKey("access_token") as? String
let url = NSURL(string: "som url")
let session = NSURLSession.sharedSession()
let request = NSURLRequest(URL: url!)
let dataTask = session.dataTaskWithRequest(request) { (data:NSData?, response:NSURLResponse?, error:NSError?) -> Void in
// print("done, error: \(error)")
if error == nil
{
dispatch_async(dispatch_get_main_queue())
{
self.arrDict=(try! NSJSONSerialization.JSONObjectWithData(data!, options: NSJSONReadingOptions.MutableContainers)) as! NSMutableArray
if (self.arrDict.count>0)
{
self.FavTableView.reloadData()
}
}
}
}
dataTask.resume()
}
func numberOfSectionsInTableView(tableView: UITableView) -> Int
{
// return self.FData.count
return self.arrDict.count
}
// number of rows
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int
{
return 1
}
// height for each cell
func tableView(tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat
{
return cellSpacingHeight
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell
{
let cell:FavCell = self.FavTableView.dequeueReusableCellWithIdentifier("FCell") as! FavCell
cell.FLabel1.text=arrDict[indexPath.section] .valueForKey("favourite_name") as? String
cell.FLabel2.text=arrDict[indexPath.section] .valueForKey("favourite_address") as? String
return cell
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
请帮帮我。
提前致谢
答案 0 :(得分：8)
为了解决您的问题，正如@El Capitan所提到的，您需要使用didSelectRowAtIndexPath方法来更改其状态。你的代码看起来应该是这样的：
// Declare a variable which stores checked rows. UITableViewCell gets dequeued and restored as you scroll up and down, so it is best to store a reference of rows which has been checked
var rowsWhichAreChecked = [NSIndexPath]()
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
let cell:FavCell = tableView.cellForRowAtIndexPath(indexPath) as! FavCell
// cross checking for checked rows
if(rowsWhichAreChecked.contains(indexPath) == false){
cell.checkBox.isChecked = true
rowsWhichAreChecked.append(indexPath)
}else{
cell.checkBox.isChecked = false
// remove the indexPath from rowsWhichAreCheckedArray
if let checkedItemIndex = rowsWhichAreChecked.indexOf(indexPath){
rowsWhichAreChecked.removeAtIndex(checkedItemIndex)
}
}
}
要重新显示在将视图滚动到视图之外之后已检查过的单元格，请在cellForRowAtIndexPath处对rowsWhichAreChecked数组执行相同的检查并相应地设置其状态。
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell:FavCell = self.FavTableView.dequeueReusableCellWithIdentifier("FCell") as! FavCell
cell.FLabel1.text=arrDict[indexPath.section] .valueForKey("favourite_name") as? String
cell.FLabel2.text=arrDict[indexPath.section] .valueForKey("favourite_address") as? String
if(rowsWhichAreChecked.contains(indexPath) == false){
cell.checkBox.isChecked = true
}else{
cell.checkBox.isChecked = false
}
}
return cell
}
编辑回答
我已经让你的代码工作但我必须对你的Checkbox类和ViewController进行一些修改
<强> Checkbox.swift
class CheckBoxButton: UIButton {
// Images
let checkedImage = UIImage(named: "CheckBoxChecked")! as UIImage
let uncheckedImage = UIImage(named: "CheckBoxUnChecked")! as UIImage
// Bool property
var isChecked: Bool = false {
didSet{
if isChecked == true {
self.setImage(uncheckedImage, forState: .Normal)
} else {
self.setImage(checkedImage, forState: .Normal)
}
}
}
override func awakeFromNib() {
self.userInteractionEnabled = false
// self.addTarget(self, action: #selector(CheckBoxButton.buttonClicked(_:)), forControlEvents: UIControlEvents.TouchUpInside)
// self.isChecked = false
}
func buttonClicked(sender: UIButton) {
if sender == self {
if isChecked == true {
isChecked = false
} else {
isChecked = true
}
}
}
}
<强> ViewController.swift
class FavVC: UIViewController, UITableViewDelegate, UITableViewDataSource {
@IBOutlet weak var FavTableView: UITableView!
var rowsWhichAreChecked = [NSIndexPath]()
//var FData = [FavouritesData]()
var arrDict :NSMutableArray=[]
let cellSpacingHeight: CGFloat = 5 // cell spacing from each cell in table view
override func viewDidLoad() {
self.FavTableView.delegate = self
self.FavTableView.dataSource = self
super.viewDidLoad()
self.jsonParsingFromURL()
let nib = UINib(nibName:"FavCell", bundle: nil)
FavTableView.registerNib(nib, forCellReuseIdentifier: "FCell")
}
// web services method
func jsonParsingFromURL ()
{
// let token = NSUserDefaults.standardUserDefaults().valueForKey("access_token") as? String
let url = NSURL(string: "some url")
let session = NSURLSession.sharedSession()
let request = NSURLRequest(URL: url!)
let dataTask = session.dataTaskWithRequest(request) { (data:NSData?, response:NSURLResponse?, error:NSError?) -> Void in
// print("done, error: \(error)")
if error == nil
{
dispatch_async(dispatch_get_main_queue())
{
self.arrDict=(try! NSJSONSerialization.JSONObjectWithData(data!, options: NSJSONReadingOptions.MutableContainers)) as! NSMutableArray
if (self.arrDict.count>0)
{
self.FavTableView.reloadData()
}
}
}
}
dataTask.resume()
//
// let StringUrl = "http"+token!
// let url:NSURL = NSURL(string: StringUrl)!
// if let JSONData = NSData(contentsOfURL: url)
// {
// if let json = (try? NSJSONSerialization.JSONObjectWithData(JSONData, options: [])) as? NSDictionary
// {
// for values in json
// {
// self.FData.append()
// }
// if let reposArray = json["data"] as? [NSDictionary]
// {
//
// for item in reposArray
// {
// let itemObj = item as? Dictionary<String,AnyObject>
//
// let b_type = itemObj!["business_type"]?.valueForKey("type")
//
// //self.Resultcount.text = "\(b_type?.count) Results"
//
// if (b_type as? String == "Taxis")
// {
//
// self.FData.append(FavouritesData(json:item))
//
// }
// }
// }
// }
// }
}
func numberOfSectionsInTableView(tableView: UITableView) -> Int
{
// return self.FData.count
return self.arrDict.count
}
// number of rows
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int
{
return 1
}
// height for each cell
func tableView(tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat
{
return cellSpacingHeight
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell
{
let cell:FavCell = self.FavTableView.dequeueReusableCellWithIdentifier("FCell") as! FavCell
cell.FLabel1.text=arrDict[indexPath.section] .valueForKey("favourite_name") as? String
cell.FLabel2.text=arrDict[indexPath.section] .valueForKey("favourite_address") as? String
let isRowChecked = rowsWhichAreChecked.contains(indexPath)
if(isRowChecked == true)
{
cell.checkbox.isChecked = true
cell.checkbox.buttonClicked(cell.checkbox)
}else{
cell.checkbox.isChecked = false
cell.checkbox.buttonClicked(cell.checkbox)
}
return cell
}
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
let cell:FavCell = tableView.cellForRowAtIndexPath(indexPath) as! FavCell
// cross checking for checked rows
if(rowsWhichAreChecked.contains(indexPath) == false){
cell.checkbox.isChecked = true
cell.checkbox.buttonClicked(cell.checkbox)
rowsWhichAreChecked.append(indexPath)
}else{
cell.checkbox.isChecked = false
cell.checkbox.buttonClicked(cell.checkbox)
// remove the indexPath from rowsWhichAreCheckedArray
if let checkedItemIndex = rowsWhichAreChecked.indexOf(indexPath){
rowsWhichAreChecked.removeAtIndex(checkedItemIndex)
}
}
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
答案 1 :(得分：0)
{
let cell:FilterTableViewCell = tableView.dequeueReusableCell(withIdentifier: "filtercell", for: indexPath) as! FilterTableViewCell
// Configure the cell...
cell.lblCategory?.attributedText = FontAttributes.sharedInstance.AttributesString(message: self.filterArray[indexPath.row], color: Textcolor)
cell.BtnIndex?.addTarget(self, action: #selector(checkMarkTapped(_ :)), for: .touchUpInside)
cell.BtnIndex?.tag = indexPath.row
let rowid = indexPath.row
let found = rowsWhichAreChecked.filter{$0.rowId == rowid}.count > 0
if found
{
cell.BtnIndex?.setImage(checkedImage, for: .normal)
}
else
{
cell.BtnIndex?.setImage(uncheckedImage, for: .normal)
}
return cell
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
let cell:FilterTableViewCell = tableView.cellForRow(at: indexPath) as! FilterTableViewCell
let rowid = indexPath.row
let found = rowsWhichAreChecked.filter{$0.rowId == rowid}.count > 0
if found
{
tempArrayFordelete = rowsWhichAreChecked
for obj in tempArrayFordelete
{
if let index = rowsWhichAreChecked.index(where: { $0.rowId == obj.rowId }) {
// removing item
rowsWhichAreChecked.remove(at: index)
cell.BtnIndex?.setImage(uncheckedImage, for: .normal)
}
}
}
else
{
cell.BtnIndex?.setImage(checkedImage, for: .normal)
let objrowId = selectedIndex(rowId: indexPath.row)
rowsWhichAreChecked.append(objrowId)
}
}
答案 2 :(得分：0)
很高兴通知您所有解决以上问题的人
import UIKit
class countrySelection:UITableViewCell{
@IBOutlet weak var imgFlag: UIImageView!
@IBOutlet weak var lblCountryName: UILabel!
@IBOutlet weak var btnSelection: UIButton!
}
class ViewController: UIViewController {
var listingDict=[[String:String]]()
var radioOption:Int?// Only used :: if u are 2. RadioButton Functionality implement
@IBOutlet weak var tableView: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
tableView.dataSource=self
tableView.delegate=self
fillCountryData()
// Do any additional setup after loading the view.
}
func fillCountryData(){
self.fillJsonData(imgName: "india_flag", countryName: "India")
self.fillJsonData(imgName: "pakistan_flag", countryName: "Pakistan")
self.fillJsonData(imgName: "israel_flag", countryName: "Israel")
self.fillJsonData(imgName: "albania_flag", countryName: "Albania")
self.fillJsonData(imgName: "america_flag", countryName: "America")
self.fillJsonData(imgName: "belize_flag", countryName: "Belize")
self.fillJsonData(imgName: "brunei_flag", countryName: "Brunei")
self.fillJsonData(imgName: "comoros_flag", countryName: "Comoros")
self.fillJsonData(imgName: "congo_flag", countryName: "Congo")
self.fillJsonData(imgName: "ecuador_flag", countryName: "Ecuador")
self.fillJsonData(imgName: "haiti_flag", countryName: "Haiti")
self.fillJsonData(imgName: "jamaica_flag", countryName: "Jamaica")
self.fillJsonData(imgName: "kenya_flag", countryName: "Kenya")
self.fillJsonData(imgName: "mali_flag", countryName: "Mali")
self.tableView.reloadData()
}
func fillJsonData(imgName:String,countryName:String){
var dictData=[String:String]()
dictData["img"]=imgName
dictData["country"]=countryName
dictData["check"]="false"
listingDict.append(dictData)
}
}
extension ViewController:UITableViewDataSource,UITableViewDelegate{
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return listingDict.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell=tableView.dequeueReusableCell(withIdentifier: "countrySelection") as! countrySelection
let dictVal=listingDict[indexPath.row]
cell.lblCountryName.text=dictVal["country"]
cell.imgFlag.image=UIImage(named:dictVal["img"]!)
/*//Check Box Functionality
if dictVal["check"] == "false"{
cell.btnSelection.setImage(UIImage(named: "checkbox_UnSelect"), for: .normal)
} else{
cell.btnSelection.setImage(UIImage(named: "checkbox_Select"), for: .normal)
}*/
//RadioButton Functionality
if radioOption==indexPath.row{
listingDict[indexPath.row]["check"]="true"
cell.btnSelection.setImage(UIImage(named: "radioButton_Select"), for: .normal)
} else{
listingDict[indexPath.row]["check"]="false"
cell.btnSelection.setImage(UIImage(named: "radioButton_UnSelect"), for: .normal)
}
return cell
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
/*//CheckBox Functionality
if listingDict[indexPath.row]["check"]=="true"{
listingDict[indexPath.row]["check"]="false"
} else{
listingDict[indexPath.row]["check"]="true"
}*/
//RadioButton Functionality
print("RadioButton",listingDict)
if listingDict[indexPath.row]["check"]=="true"{
radioOption=nil
} else{
radioOption=indexPath.row
}
self.tableView.reloadData()
}
}