https://github.com/potato512/SYSwiftLearning

// MARK: - 数据
func setLocalData()
{
        self.mainArray = NSMutableArray()
        
        for number in 1...10
        {
            let rowArray:NSMutableArray = NSMutableArray()
            for rowNumber in 1...5
            {
                let rowNumberTmp = random() % 1000 + rowNumber
                rowArray.addObject(String(rowNumberTmp))
            }
            
            let dict:NSMutableDictionary = NSMutableDictionary()
            // cell值
            dict.setObject(rowArray,forKey: "rowCell")
            // 页眉，页脚标题
            let numberTmp = random() % 1000 + number
            dict.setObject(String(format: "headerTitle：%@",arguments: [String(numberTmp)]),forKey: "rowHeader")
            dict.setObject(String(format: "footerTitle：%@",forKey: "rowFooter")
            // cell展开，或收起来状态
            dict.setObject(((number % 2 == 0) ? true : false),forKey: "rowStatus")
            
            self.mainArray.addObject(dict)
        }
}

// MARK: - 视图
func setUI()
{
        // 列表样式分plain，grouped，其中grouped在列表有页眉，页脚时会随cell滚动，而plain则是先固定后滚动
        self.mainTableView = UITableView(frame: self.view.bounds,style: UITableViewStyle.Grouped)
        self.view.addSubview(self.mainTableView)
        self.mainTableView.backgroundColor = UIColor.clearColor()
        self.mainTableView.delegate = self
        self.mainTableView.dataSource = self
        self.mainTableView.autoresizingMask = UIViewAutoresizing.FlexibleHeight
        self.mainTableView.tableFooterView = UIView()
}

// MARK: - statusClick
func statusClick(button:UIButton)
{
        let section = button.tag
        
        let dict:NSMutableDictionary! = self.mainArray[section] as! NSMutableDictionary
        let status:Bool! = dict.objectForKey("rowStatus") as! Bool
        dict.setObject((status.boolValue ? false : true),forKey: "rowStatus")

        self.mainArray.replaceObjectAtIndex(section,withObject: dict)
        
        self.mainTableView.reloadSections(NSIndexSet(index: section),withRowAnimation: .None)
}

// MARK: - UITableViewDataSource,UITableViewDelegate
    
// 分组
func numberOfSectionsInTableView(tableView: UITableView) -> Int {
        return self.mainArray.count
}
    
// MARK: 页眉视图
func tableView(tableView: UITableView,heightForHeaderInSection section: Int) -> CGFloat {
        return 40.0
}
    
//    func tableView(tableView: UITableView,titleForHeaderInSection section: Int) -> String? {
//        
//        let dict:NSDictionary! = self.mainArray[section] as! NSDictionary
//        let title:String! = dict.objectForKey("rowHeader") as! String
//        
//        return title
//    }
    
// 自定义页眉（注意：自定义时，高度与代理方法中的高度一致，同时代理方法中的标题失效）
func tableView(tableView: UITableView,viewForHeaderInSection section: Int) -> UIView? {
        
        let view = UIButton(frame: CGRectMake(0.0,0.0,CGRectGetWidth(self.mainTableView.frame),40.0))
        view.backgroundColor = UIColor.greenColor()
        view.contentHorizontalAlignment = .Center
        view.setTitleColor(UIColor.blackColor(),forState: .Normal)
        view.setTitleColor(UIColor.redColor(),forState: .Highlighted)
        
        // 响应事件，用于修改cell显示状态，即打开，或收起来
        view.tag = section
        view.addTarget(self,action: Selector("statusClick:"),forControlEvents: .TouchUpInside)
        
        let dict:NSDictionary! = self.mainArray[section] as! NSDictionary
        let title:String! = dict.objectForKey("rowHeader") as! String
        view.setTitle(title,forState: .Normal)
        
        return view
}
    
// MARK: 页脚视图
func tableView(tableView: UITableView,heightForFooterInSection section: Int) -> CGFloat {
        return 20.0
}
    
//    func tableView(tableView: UITableView,titleForFooterInSection section: Int) -> String? {
//        
//        let dict:NSDictionary! = self.mainArray[section] as! NSDictionary
//        let title:String! = dict.objectForKey("rowFooter") as! String
//        
//        return title
//    }
    
// 自定义页脚（注意：自定义时，高度与代理方法中的高度一致，同时代理方法中的标题失效）
func tableView(tableView: UITableView,viewForFooterInSection section: Int) -> UIView? {
        
        let view = UILabel(frame: CGRectMake(0.0,40.0))
        view.backgroundColor = UIColor.yellowColor()
        view.textAlignment = .Center
        
        let dict:NSDictionary! = self.mainArray[section] as! NSDictionary
        let title:String! = dict.objectForKey("rowFooter") as! String
        view.text = title
        
        return view
}
    
// MARK: cell单元格
func tableView(tableView: UITableView,numberOfRowsInSection section: Int) -> Int {
        
        let dict:NSDictionary! = self.mainArray[section] as! NSDictionary
        let status:Bool! = dict.objectForKey("rowStatus") as! Bool
        if status.boolValue
        {
            let array:NSArray! = dict.objectForKey("rowCell") as! NSArray
            return array.count
        }
        
        return 0
}
    
func tableView(tableView: UITableView,heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
        return 60.0
}
    
func tableView(tableView: UITableView,cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
        var cell:UITableViewCell! = tableView.dequeueReusableCellWithIdentifier("UITableViewCell")
        if cell == nil
        {
            cell = UITableViewCell(style: UITableViewCellStyle.Subtitle,reuseIdentifier: "UITableViewCell")
            
            cell.textLabel!.adjustsFontSizeToFitWidth = true
            cell.textLabel!.font = UIFont.systemFontOfSize(12.0)
            
            cell.detailTextLabel!.font = UIFont.systemFontOfSize(20.0)
            cell.detailTextLabel!.textColor = UIColor.redColor()
        }
        
        let text = String(format: "%@",arguments: [indexPath])
        cell.textLabel!.text = text
        
        let dict:NSDictionary! = self.mainArray[indexPath.section] as! NSDictionary
        let array:NSArray! = dict.objectForKey("rowCell") as! NSArray
        let title:String! = array.objectAtIndex(indexPath.row) as! String
        cell.detailTextLabel!.text = title
        
        return cell
}
    
func tableView(tableView: UITableView,didSelectRowAtIndexPath indexPath: NSIndexPath) {
        tableView.deselectRowAtIndexPath(indexPath,animated: true)
}