GenericDataSource.swift

//
//  GenericDataSource.swift
//
//  Created by Haizhen Lee on 15/5/27.
//  Copyright (c) 2015年 banxi1988. All rights reserved.
//

import Foundation

class GenericDataSource<T>:SimpleDataSourceBridge{
    private var items = [T]()
    
    init(items:[T]){
        self.items = items
    }
    
    func updateItems(items:[T]){
        self.items = items
    }
    
    
    func itemAtIndexPath(indexPath:NSIndexPath) -> T{
        return items[indexPath.row]
    }
    
    override func numberOfRows() -> Int {
        return self.items.count
    }
    
}

SimpleDataSourceBridge.swift

//
//  SimpleDataSourceBridge.swift
//  Youjia
//
//  Created by Haizhen Lee on 15/5/27.
//  Copyright (c) 2015年 banxi1988. All rights reserved.
//

import UIKit

class SimpleDataSourceBridge:NSObject,UITableViewDataSource,UICollectionViewDataSource{
    
    // MARK: UITableViewDataSource
    final func numberOfSectionsInTableView(tableView: UITableView) -> Int {
        return 1
    }
    
    final func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return numberOfRows()
    }
    
    final func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
        let cell = tableView.dequeueReusableCellWithIdentifier(self.dynamicType.reuseIdentifier, forIndexPath: indexPath) as! UITableViewCell
        configureTableViewCell(cell, atIndexPath: indexPath)
        return cell
    }
    
    // MARK: UICollectionViewDataSource
    
    final func numberOfSectionsInCollectionView(collectionView: UICollectionView) -> Int {
        return 1
    }
    
    final func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int{
        return numberOfRows()
    }
    
    // The cell that is returned must be retrieved from a call to -dequeueReusableCellWithReuseIdentifier:forIndexPath:
    final func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell{
        let cell = collectionView.dequeueReusableCellWithReuseIdentifier(self.dynamicType.reuseIdentifier, forIndexPath: indexPath) as! UICollectionViewCell
        configureCollectionViewCell(cell, atIndexPath: indexPath)
        return cell
    }
    
    // MARK : Helper
    
    func configureCollectionViewCell(cell:UICollectionViewCell,atIndexPath indexPath:NSIndexPath){
        
    }
    
    func configureTableViewCell(cell:UITableViewCell,atIndexPath indexPath:NSIndexPath){
        
    }
    
    func numberOfRows() -> Int {
        return 0
    }
    
    class var reuseIdentifier:String{
        return "cell"
    }
    
    
}