Swift 如何识别哪个单元格被点击一次,哪个单元格被点击两次
那里!我想知道哪个单元格被点击一次,哪个单元格被点击两次。我有两个类,一个用于TableViewController,另一个用于TableViewCell。我想操纵有关触摸的细胞,但我无法获得它们的信息 TableViewController:Swift 如何识别哪个单元格被点击一次,哪个单元格被点击两次,swift,uitableview,Swift,Uitableview,那里!我想知道哪个单元格被点击一次,哪个单元格被点击两次。我有两个类,一个用于TableViewController,另一个用于TableViewCell。我想操纵有关触摸的细胞,但我无法获得它们的信息 TableViewController: import UIKit var elements: [[Int16]] = Array(repeating:Array(repeating:0, count:2), count:10) class ViewController: UIViewCon
import UIKit
var elements: [[Int16]] = Array(repeating:Array(repeating:0, count:2), count:10)
class ViewController: UIViewController, UITableViewDelegate, UITableViewDataSource
{
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int
{
return elements.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell
{
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! TableViewCell
if(elements[indexPath.row][1] == 1) //if red
{
cell.Label.text = String(elements[indexPath.row][0] * 3)
cell.Circle.backgroundColor = UIColor.red
}
else //if blue
{
cell.Label.text = String(elements[indexPath.row][0])
cell.Circle.backgroundColor = UIColor.blue
}
return cell
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat
{
return UIScreen.main.bounds.height/10
}
override func viewWillAppear(_ animated: Bool)
{
for i in 0..<elements.count
{
elements[i][0] = Int16(Int(arc4random_uniform(10)))
elements[i][1] = Int16(Int(arc4random_uniform(2)))
}
Memory().save(entity: elements)
}
override func viewDidLoad()
{
super.viewDidLoad()
}
override func didReceiveMemoryWarning()
{
super.didReceiveMemoryWarning()
}
}
在单元格内,我有一个标签,存储一个从0到10的随机数(标签),旁边有一个圆圈-蓝色或红色(它们在开始时也是随机的)。如果圆圈为红色,则数字(标签)显示乘以三的数字。所有这些都在那里
现在。。。我想通过触摸一次单元格来更改数字,并通过触摸两次将其设置为0
TableViewController:
import UIKit
var elements: [[Int16]] = Array(repeating:Array(repeating:0, count:2), count:10)
class ViewController: UIViewController, UITableViewDelegate, UITableViewDataSource
{
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int
{
return elements.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell
{
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! TableViewCell
if(elements[indexPath.row][1] == 1) //if red
{
cell.Label.text = String(elements[indexPath.row][0] * 3)
cell.Circle.backgroundColor = UIColor.red
}
else //if blue
{
cell.Label.text = String(elements[indexPath.row][0])
cell.Circle.backgroundColor = UIColor.blue
}
return cell
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat
{
return UIScreen.main.bounds.height/10
}
override func viewWillAppear(_ animated: Bool)
{
for i in 0..<elements.count
{
elements[i][0] = Int16(Int(arc4random_uniform(10)))
elements[i][1] = Int16(Int(arc4random_uniform(2)))
}
Memory().save(entity: elements)
}
override func viewDidLoad()
{
super.viewDidLoad()
}
override func didReceiveMemoryWarning()
{
super.didReceiveMemoryWarning()
}
}
从这里引用
可能与ok重复,这样更好,但是现在如何获取被点击单元格的indexPath?您可以使用委托协议获取indexPath
var elements: [[Int16]] = Array(repeating: Array(repeating:0, count:2), count:10)
class ViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
//MARK: - UIViewController LifeCycle
override func viewDidLoad() {
super.viewDidLoad()
}
override func viewWillAppear(_ animated: Bool) {
for i in 0..<elements.count {
elements[i][0] = Int16(Int(arc4random_uniform(10)))
elements[i][1] = Int16(Int(arc4random_uniform(2)))
}
Memory().save(entity: elements)
}
//MARK: - UITableView Delegate & DataSource
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return elements.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath) as! TableViewCell
if elements[indexPath.row][1] == 1 {
cell.Label.text = String(elements[indexPath.row][0] * 3)
cell.Circle.backgroundColor = UIColor.red
}
else {
cell.Label.text = String(elements[indexPath.row][0])
cell.Circle.backgroundColor = UIColor.blue
}
return cell
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return UIScreen.main.bounds.height/10
}
}
class TableViewCell: UITableViewCell {
@IBOutlet weak var Label: UILabel!
@IBOutlet weak var Circle: UIView!
private var tapCounter = 0
override func awakeFromNib() {
super.awakeFromNib()
Circle.layer.cornerRadius = Circle.frame.width / 2
let tap = UITapGestureRecognizer(target: self, action: #selector(tapAction))
addGestureRecognizer(tap)
}
override func setSelected(_ selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
}
@objc func tapAction() {
if tapCounter == 0 {
DispatchQueue.global(qos: .background).async {
usleep(250000)
if self.tapCounter > 1 {
self.tappedTwice()
}
else {
self.tappedOnce()
}
self.tapCounter = 0
}
}
tapCounter += 1
}
func tappedOnce() {
print("1111111")
}
func tappedTwice() {
print("2222222")
}
}