效果图
Paste_Image.png Paste_Image.png代码
import UIKit
class ViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
var tableView: UITableView?
var allnames: Dictionary<Int, [String]>?
var adHeaders: [String]?
override func viewDidLoad() {
super.viewDidLoad()
//初始化数据,这一次数据,我们放在属性列表文件里
self.allnames = [
0:[String] ([
"UILabel 标签",
"UITextField 文本框",
"UIButton 按钮"]),
1:[String]([
"UIDatePiker 日期选择器",
"UIToolbar 工具条",
"UITableView 表格视图"])
];
self.adHeaders = [
"常见 UIKit 控件",
"高级 UIKit 控件"
]
//创建表视图
let viewBounds: CGRect = CGRectMake(0,20,
UIScreen.mainScreen().bounds.width,
UIScreen.mainScreen().bounds.height-20)
self.tableView = UITableView(frame:viewBounds, style:UITableViewStyle.Grouped)
self.tableView!.delegate = self
self.tableView!.dataSource = self
//创建一个重用的单元格
self.tableView!.registerClass(UITableViewCell.self,
forCellReuseIdentifier: "SwiftCell")
self.view.addSubview(self.tableView!)
//创建表头标签
let headerLabel = UILabel(frame: CGRectMake(0, 0, self.view.bounds.size.width, 30))
headerLabel.backgroundColor = UIColor.blackColor()
headerLabel.textColor = UIColor.whiteColor()
headerLabel.numberOfLines = 0
headerLabel.lineBreakMode = NSLineBreakMode.ByWordWrapping
headerLabel.text = "高级 UIKit 控件"
headerLabel.font = UIFont.italicSystemFontOfSize(20)
self.tableView!.tableHeaderView = headerLabel
}
func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 2
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
let data = self.allnames![section]
return data!.count
}
// UITableViewDataSource协议中的方法,该方法的返回值决定指定分区的头部
func tableView(tableView: UITableView, titleForHeaderInSection section: Int)
-> String? {
var headers = self.adHeaders!;
return headers[section];
}
// UITableViewDataSource协议中的方法,该方法的返回值决定指定分区的尾部
func tableView(tableView:UITableView, titleForFooterInSection
section:Int)->String?
{
let data = self.allnames?[section]
return "有\(data!.count)个控件"
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
//为了提供表格显示性能,已创建完成的单元需重复使用
let identify:String = "SwiftCell"
let secno = indexPath.section
var data = self.allnames?[secno]
if (secno == 0) {
//同一形式的单元格重复使用,在声明时已注册
let cell = tableView.dequeueReusableCellWithIdentifier(
identify, forIndexPath: indexPath) as UITableViewCell
cell.accessoryType = UITableViewCellAccessoryType.DisclosureIndicator
let image = UIImage(named: "tabbar_home")
cell.imageView?.image = image
cell.textLabel?.text = data![indexPath.row]
return cell
} else {
//第二个分组表格使用详细标签
let adCell = UITableViewCell(style: .Subtitle, reuseIdentifier: "SwiftCell")
adCell.textLabel?.text = data![indexPath.row]
adCell.detailTextLabel?.text = "这是\(data![indexPath.row])的说明"
return adCell
}
}
// UITableViewDelegate 方法,处理列表项的选中事件
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
self.tableView?.deselectRowAtIndexPath(indexPath, animated: true)
let itemString = self.allnames![indexPath.section]![indexPath.row]
let alertController = UIAlertController(title: "提示!",
message: "你选中了【\(itemString)】",
preferredStyle: .Alert)
let cancelAction = UIAlertAction(title: "确定", style: .Cancel, handler: nil)
alertController.addAction(cancelAction)
self.presentViewController(alertController, animated: true, completion: nil)
}
}
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