TableView Cell的折叠效果 swift版本
ViewController.swift
classViewController:UIViewController,UITableViewDelegate,UITableViewDataSource{
vartableview :UITableView?
varsessionArray :NSMutableArray?
overridefuncviewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
createUi()
}
overridefuncdidReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
funccreateUi()
{
sessionArray=NSMutableArray()
for_in0...4{
letgp =group()
gp.bIsShow=false;
gp.cellArray=NSArray(array: [1,2,3,4,5])
sessionArray?.add(gp)
}
lettbRect =CGRect(x:0, y:70, width:UIScreen.main.bounds.width, height:UIScreen.main.bounds.height-70)
tableview=UITableView(frame: tbRect, style: .grouped)
tableview?.delegate=self
tableview?.dataSource=self
self.view.addSubview(tableview!)
}
publicfunctableView(_tableView:UITableView, numberOfRowsInSection section:Int) ->Int
{
letgp =sessionArray?[section]as! (group)
if(gp.bIsShow)
{
return(gp.cellArray?.count)!
}
else
{
return0
}
}
publicfunctableView(_tableView:UITableView, cellForRowAt indexPath:IndexPath) ->UITableViewCell
{
letcellid ="zdcell"
varcell =tableview?.dequeueReusableCell(withIdentifier: cellid)
if(cell ==nil)
{
cell =UITableViewCell(style: .default, reuseIdentifier: cellid)
}
cell?.textLabel?.text=String(format:"%d",indexPath.row)
returncell!
}
funcnumberOfSections(in tableView:UITableView) ->Int{
return(sessionArray?.count)!
}
functableView(_tableView:UITableView, didSelectRowAt indexPath:IndexPath) {
}
functableView(_tableView:UITableView, viewForHeaderInSection section:Int) ->UIView? {
letheadview =HeadView(frame:CGRect(x:0, y:0, width:UIScreen.main.bounds.width, height:50))
headview.session= section
lettlLabel =UILabel(frame:CGRect(x:0, y:5, width:UIScreen.main.bounds.width, height:50-10))
tlLabel.backgroundColor=UIColor.gray
lettitle =self.tableView(tableView, titleForHeaderInSection: section)!asString
tlLabel.text= title
headview.addSubview(tlLabel)
letgp =sessionArray?[section]as!group
letwh :CGFloat=30
letdirectionImageV =UIImageView(frame:CGRect(x:UIScreen.main.bounds.width-wh-10, y: (50-wh)*0.5, width: wh, height: wh))
if(gp.bIsShow)
{
directionImageV.image=UIImage(named:"arrow_down.png")
}
else
{
directionImageV.image=UIImage(named:"arrow_right.png")
}
headview.imageV= directionImageV
headview.addSubview(directionImageV)
lettap =UITapGestureRecognizer(target:self, action:#selector(handleTapGesture(sender:)))
headview.addGestureRecognizer(tap)
returnheadview
}
funchandleTapGesture(sender:UITapGestureRecognizer){
letheadv = sender.viewas!HeadView
letsession = headv.session
letgp =sessionArray?[session!]as!group
gp.bIsShow=!gp.bIsShow
self.tableview?.reloadData()
}
functableView(_tableView:UITableView, heightForHeaderInSection section:Int) ->CGFloat
{
return50
}
functableView(_tableView:UITableView, heightForFooterInSection section:Int) ->CGFloat
{
return0.1
}
functableView(_tableView:UITableView, titleForHeaderInSection section:Int) ->String?
{
letgp =sessionArray?[section]as!group
if(gp.bIsShow)
{
returnString(format:"第%d组展开",section+1)
}
else
{
returnString(format:"第%d组折叠",section+1)
}
}
}
classHeadView:UIView{
varsession :Int?
varimageV :UIImageView?
}
GroupInfo.swift
classgroup
{
public
varbIsShow :Bool=false
varcellArray :NSArray?
}
