如何使用 Swift 在 UITableview 中加载自定义单元格 (Xib)
How to load Custom cell (Xib) in UITableview using Swift
这是我的代码
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int
{
return 10
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell
{
var cell :UITableViewCell = tableView.dequeueReusableCellWithIdentifier("discovered") as UITableViewCell!
bluetoothlog.registerNib(UINib(nibName: "devicedet", bundle: nil), forCellReuseIdentifier: "discovered")
//NSBundle.mainBundle().loadNibNamed("devicedet", owner: nil, options: nil)[0] as UITableViewCell
cell = blucell
devname.text = peri[indexPath.row]
devstrength.text = signalstrength[indexPath.row]
bluetoothlog.backgroundColor = UIColor.clearColor()
return cell
}
我已经尝试过上面的代码,但在 Tableview 中没有显示任何内容,请帮助我更改此代码工作
谢谢
你的函数 registerNib ,你尝试在 viewDidLoad() 方法中编写并从 cellForRowAtIndexPah 中删除,然后测试你的项目
您的 Cell 实例应该是 CustomCell 实例而不是 UITableView Cell。
var cell :UITableViewCell 应该替换为
可变单元格:devicedet
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell
{
var cell :devicedet = tableView.dequeueReusableCellWithIdentifier("discovered") as UITableViewCell!
bluetoothlog.registerNib(UINib(nibName: "devicedet", bundle: nil), forCellReuseIdentifier: "discovered")
//NSBundle.mainBundle().loadNibNamed("devicedet", owner: nil, options: nil)[0] as UITableViewCell
cell = blucell
devname.text = peri[indexPath.row]
devstrength.text = signalstrength[indexPath.row]
bluetoothlog.backgroundColor = UIColor.clearColor()
return cell
}
- 命令 registerNib 应该在 ViewDidLoad 中调用,而不是在行的每个单元格调用中调用
- 什么是'bluecell'?在你的回调 cellforTable.. 中,你分配 cell = blucell -> 这可能会导致你的问题。
试试这个:
import UIKit
class YourViewController: UITableViewController, UITableViewDataSource, UITableViewDelegate {
override func viewDidLoad() {
super.viewDidLoad()
//call register nib here!!
bluetoothlog.registerNib(UINib(nibName: "devicedet", bundle: nil), forCellReuseIdentifier: "discovered")
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int
{
return peri.count
}
//it seem that you have to add a è
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell!
{
let cell :UITableViewCell = tableView.dequeueReusableCellWithIdentifier("discovered") as UITableViewCell!
/* REMOVE THIS
bluetoothlog.registerNib(UINib(nibName: "devicedet", bundle: nil), forCellReuseIdentifier: "discovered")
//NSBundle.mainBundle().loadNibNamed("devicedet", owner: nil, options: nil)[0] as UITableViewCell
*/
//// THEN, UPDATE YOUR CELL with YOUR DATAs
/* I don't understand what are you doing with this line of code:
cell = blucell
*/
devname.text = peri[indexPath.row]
devstrength.text = signalstrength[indexPath.row]
//Seem that bluetoothlog is the tableview, you should call it in viewdidload or viewwillappear()
bluetoothlog.backgroundColor = UIColor.clearColor()
return cell
}
}
import UIKit
class ViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
//MARK:- Sample Data Array to load in TableView
let sampleArrray: \[String\] = \["val1", "val2", "val3", "val4", "val5"]
//MARK:- Cell reuse identifier
let cellReuseIdentifier = "cell"
//MARK:- UITableView outlet
@IBOutlet var tableView: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
// Registering the custom cell
self.tableView.register(UITableViewCell.self, forCellReuseIdentifier: cellReuseIdentifier)
// Setting delegate and Datasourse as same viewcontroller (this code is not neccessory if we are setting it from storyboard)
tableView.delegate = self
tableView.dataSource = self
}
//UITableview required methods
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return sampleArrray.count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell:UITableViewCell = tableView.dequeueReusableCellWithIdentifier(cellReuseIdentifier) as UITableViewCell!
cell.textLabel?.text = sampleArrray\[indexPath.row\]
return cell
}
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
print("clicked at: \(indexPath.row)")
//Here u can get the selected cell and add action related to this cell seelction
}
添加了从故事板设置数据源和委托的屏幕截图
在viewDidLoad中注册XIB如下图
var userDetailsNIB = UINib(nibName: "UserDetailsCell", bundle: nil)
viewListingTable.registerNib(userDetailsNIB, forCellReuseIdentifier: "UserDetailsViewCellID")
And in func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell{
function use it by access it with Identifier which created in viewDidLoad method
let cell = tableView.dequeueReusableCellWithIdentifier("UserDetailsViewCellID") as UserDetailsViewCell
return cell
如果您想在 swift 的 UITableView 中加载自定义单元格 (Xib),您可以使用以下代码。
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return array.count; //This function returns number of rows in table view
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
var cell:YourTableViewCell! = tableView.dequeueReusableCellWithIdentifier("YourTableViewCell", forIndexPath:indexPath)as! YourTableViewCell
// Do additional code here
}
别忘了在viewDidLoad中注册nib
override func viewDidLoad() {
super.viewDidLoad()
// registering your nib
let yourNibName = UINib(nibName: "YourTableViewCell", bundle: nil)
tableView.registerNib(yourNibName, forCellReuseIdentifier: "YourTableViewCell")
// Do any additional setup after loading the view.
}
使用重用标识符注册您的 NIB:
override func viewDidLoad() {
super.viewDidLoad()
tableView.registerNib(UINib(nibName: "devicedet", bundle: nil), forCellReuseIdentifier: "Cell")
}
然后您的 cellForRowAtIndexPath 将实例化单元格。
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath) as! devicedet
return cell
}
在 Swift
中注册 xib
单元格
override func viewDidLoad() {
super.viewDidLoad()
tableView.register(UINib(nibName: "XibCell", bundle: nil), forCellReuseIdentifier: "Cell")
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell") as! UITableViewCell
return cell
}
我的代码:
override func viewDidLoad() {
super.viewDidLoad()
tableView.register(
UINib(nibName: "XibCell", bundle: nil),
forCellReuseIdentifier: "Cell"
)
}
func tableView(_ tableView: UITableView,
cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell")
return cell as! UITableViewCell
}
这是我的代码
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int
{
return 10
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell
{
var cell :UITableViewCell = tableView.dequeueReusableCellWithIdentifier("discovered") as UITableViewCell!
bluetoothlog.registerNib(UINib(nibName: "devicedet", bundle: nil), forCellReuseIdentifier: "discovered")
//NSBundle.mainBundle().loadNibNamed("devicedet", owner: nil, options: nil)[0] as UITableViewCell
cell = blucell
devname.text = peri[indexPath.row]
devstrength.text = signalstrength[indexPath.row]
bluetoothlog.backgroundColor = UIColor.clearColor()
return cell
}
我已经尝试过上面的代码,但在 Tableview 中没有显示任何内容,请帮助我更改此代码工作
谢谢
你的函数 registerNib ,你尝试在 viewDidLoad() 方法中编写并从 cellForRowAtIndexPah 中删除,然后测试你的项目
您的 Cell 实例应该是 CustomCell 实例而不是 UITableView Cell。 var cell :UITableViewCell 应该替换为 可变单元格:devicedet
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell
{
var cell :devicedet = tableView.dequeueReusableCellWithIdentifier("discovered") as UITableViewCell!
bluetoothlog.registerNib(UINib(nibName: "devicedet", bundle: nil), forCellReuseIdentifier: "discovered")
//NSBundle.mainBundle().loadNibNamed("devicedet", owner: nil, options: nil)[0] as UITableViewCell
cell = blucell
devname.text = peri[indexPath.row]
devstrength.text = signalstrength[indexPath.row]
bluetoothlog.backgroundColor = UIColor.clearColor()
return cell
}
- 命令 registerNib 应该在 ViewDidLoad 中调用,而不是在行的每个单元格调用中调用
- 什么是'bluecell'?在你的回调 cellforTable.. 中,你分配 cell = blucell -> 这可能会导致你的问题。
试试这个:
import UIKit
class YourViewController: UITableViewController, UITableViewDataSource, UITableViewDelegate {
override func viewDidLoad() {
super.viewDidLoad()
//call register nib here!!
bluetoothlog.registerNib(UINib(nibName: "devicedet", bundle: nil), forCellReuseIdentifier: "discovered")
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int
{
return peri.count
}
//it seem that you have to add a è
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell!
{
let cell :UITableViewCell = tableView.dequeueReusableCellWithIdentifier("discovered") as UITableViewCell!
/* REMOVE THIS
bluetoothlog.registerNib(UINib(nibName: "devicedet", bundle: nil), forCellReuseIdentifier: "discovered")
//NSBundle.mainBundle().loadNibNamed("devicedet", owner: nil, options: nil)[0] as UITableViewCell
*/
//// THEN, UPDATE YOUR CELL with YOUR DATAs
/* I don't understand what are you doing with this line of code:
cell = blucell
*/
devname.text = peri[indexPath.row]
devstrength.text = signalstrength[indexPath.row]
//Seem that bluetoothlog is the tableview, you should call it in viewdidload or viewwillappear()
bluetoothlog.backgroundColor = UIColor.clearColor()
return cell
}
}
import UIKit
class ViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
//MARK:- Sample Data Array to load in TableView
let sampleArrray: \[String\] = \["val1", "val2", "val3", "val4", "val5"]
//MARK:- Cell reuse identifier
let cellReuseIdentifier = "cell"
//MARK:- UITableView outlet
@IBOutlet var tableView: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
// Registering the custom cell
self.tableView.register(UITableViewCell.self, forCellReuseIdentifier: cellReuseIdentifier)
// Setting delegate and Datasourse as same viewcontroller (this code is not neccessory if we are setting it from storyboard)
tableView.delegate = self
tableView.dataSource = self
}
//UITableview required methods
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return sampleArrray.count
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell:UITableViewCell = tableView.dequeueReusableCellWithIdentifier(cellReuseIdentifier) as UITableViewCell!
cell.textLabel?.text = sampleArrray\[indexPath.row\]
return cell
}
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
print("clicked at: \(indexPath.row)")
//Here u can get the selected cell and add action related to this cell seelction
}
添加了从故事板设置数据源和委托的屏幕截图
在viewDidLoad中注册XIB如下图
var userDetailsNIB = UINib(nibName: "UserDetailsCell", bundle: nil)
viewListingTable.registerNib(userDetailsNIB, forCellReuseIdentifier: "UserDetailsViewCellID")
And in func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell{
function use it by access it with Identifier which created in viewDidLoad method
let cell = tableView.dequeueReusableCellWithIdentifier("UserDetailsViewCellID") as UserDetailsViewCell
return cell
如果您想在 swift 的 UITableView 中加载自定义单元格 (Xib),您可以使用以下代码。
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return array.count; //This function returns number of rows in table view
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
var cell:YourTableViewCell! = tableView.dequeueReusableCellWithIdentifier("YourTableViewCell", forIndexPath:indexPath)as! YourTableViewCell
// Do additional code here
}
别忘了在viewDidLoad中注册nib
override func viewDidLoad() {
super.viewDidLoad()
// registering your nib
let yourNibName = UINib(nibName: "YourTableViewCell", bundle: nil)
tableView.registerNib(yourNibName, forCellReuseIdentifier: "YourTableViewCell")
// Do any additional setup after loading the view.
}
使用重用标识符注册您的 NIB:
override func viewDidLoad() { super.viewDidLoad() tableView.registerNib(UINib(nibName: "devicedet", bundle: nil), forCellReuseIdentifier: "Cell") }
然后您的 cellForRowAtIndexPath 将实例化单元格。
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell { let cell = tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath) as! devicedet return cell }
在 Swift
中注册xib
单元格
override func viewDidLoad() {
super.viewDidLoad()
tableView.register(UINib(nibName: "XibCell", bundle: nil), forCellReuseIdentifier: "Cell")
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell") as! UITableViewCell
return cell
}
我的代码:
override func viewDidLoad() {
super.viewDidLoad()
tableView.register(
UINib(nibName: "XibCell", bundle: nil),
forCellReuseIdentifier: "Cell"
)
}
func tableView(_ tableView: UITableView,
cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell")
return cell as! UITableViewCell
}