• AFN添加网络指示器
• 设置缓存大小 NSURLCache
  只缓存get datatask
• 发送用户名密码后 返回用户token、过期日期 创建模型接收
  发送accesstoken和uid 获取用户列表

 //2.是回调地址,截取code
    //query是回调URL 问号后面的所有字符串
    if let query = request.URL!.query where query.hasPrefix("code=") {
        let code = query.substringFromIndex("code=".endIndex)
        print(code)
        //发送请求 获取accesstoken
        NetworkingTools.sharedTools.loadAccessToken(code).subscribeNext({ (result) -> Void in
            print(result)
            //成功获得accesstoken 和uid
            //通过accesstoken和uid 获取用户数据列表
            NetworkingTools.sharedTools.loadUserInfo(result["access_token"]as!String, uid: result["uid"]as!String).subscribeNext({ (result) -> Void in
                //获得了用户信息 建立用户模型
                print(result)
                }, error: { (error) -> Void in
                    print(error)
            })
            }, error: { (error) -> Void in
                print(error)
            })

• 设置过期日期
  didset

• 通过uid获取用户头像(avatar)、昵称 并把属性加入用户模型中
  loaduserinfo

• description

• 用户模型归档
  遵守NSCoding

  func saveAccount(){
    let path = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true).last
    NSKeyedArchiver.archiveRootObject(self, toFile: path!)
  }
  func encodeWithCoder(aCoder: NSCoder) {
    aCoder.encodeObject(access_token, forKey: "access_token")
    aCoder.encodeObject(uid, forKey: "uid")
    aCoder.encodeObject(name, forKey: "name")
    aCoder.encodeObject(avatar_large, forKey: "avatar_large")
  }
  required init?(coder aDecoder: NSCoder) {
    access_token = aDecoder.decodeObjectForKey("access_token")as?String
    uid = aDecoder.decodeObjectForKey("uid")as?String
    name = aDecoder.decodeObjectForKey("name")as?String
    avatar_large = aDecoder.decodeObjectForKey("avatar_large")as?String
  }
  

• MVVM封装网络
  以前我们获取网络数据 都是在viewcontroller中进行,在MVVM中,viewcontroller不能直接访问模型数据,需要通过Viewmodel

• 加载用户信息 判断过期
  在accountViewModel创建类方法 从沙盒中获取用户PLIST,判断是否有accesstoken

  private static var account:UserAccount?
  class func loadAccount()->UserAccount? {
    if account == nil{
        let path = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true).last!.stringByAppendingString("/account.plist")
       account = NSKeyedUnarchiver.unarchiveObjectWithFile(path)as?UserAccount
        
    }
    return account
  }
  

• 新特性
  创建nwefeatureController继承collectionViewController
  1.init 流水布局

  init(){
    super.init(collectionViewLayout: UICollectionViewFlowLayout())
  
  }
  

2.collectionView代理

  override func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
    return 4
  }
  override func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
    let cell = collectionView.dequeueReusableCellWithReuseIdentifier(DVCollectionCell, forIndexPath: indexPath)as!newFeatureCell
    
  //        cell.frame = view.bounds
    cell.imageIndex = indexPath.item
    cell.backgroundColor = (indexPath.row % 2==0) ? UIColor.redColor() : UIColor.grayColor()
    
    return cell
  }

3.注册cell

  private func setupUI(){
    let layout = collectionView?.collectionViewLayout as! UICollectionViewFlowLayout
    layout.itemSize = view.bounds.size
    layout.minimumInteritemSpacing = 0
    layout.minimumLineSpacing = 0
    layout.scrollDirection = UICollectionViewScrollDirection.Horizontal
    
    collectionView?.pagingEnabled = true
    collectionView?.bounces = false
    collectionView?.showsHorizontalScrollIndicator = false
  }

• 自定义cell

  private class newFeatureCell : UICollectionViewCell{
  
   var imageIndex = 0{
   didSet{
       imageView.image = UIImage(named: "new_feature_\(imageIndex+1)")
       }
     }
     lazy var  imageView = UIImageView()
     override init(frame: CGRect) {
     super.init(frame: frame)
     addSubview(imageView)
     imageView.frame = bounds
   
   }
  

• 显示登入按钮

  func showBTN(){
    button.hidden = false
    button.userInteractionEnabled = false
    button.transform = CGAffineTransformMakeScale(0, 0)
    
    UIView.animateWithDuration(1.2, delay: 0, usingSpringWithDamping: 0.8, initialSpringVelocity: 8, options: [], animations: { () -> Void in
        self.button.transform = CGAffineTransformIdentity
        }) { (_) -> Void in
     button.userInteractionEnabled = true
    }
  }