［已解决］swift实现等分的UI界面组建视图

    init(personContactItem:ContactItem) {
        self.curPersonContactItem = personContactItem
        self.memberList = [ContactItem]()

        self.flowLayout = UICollectionViewFlowLayout()
        self.flowLayout.scrollDirection = UICollectionViewScrollDirection.Horizontal
        self.flowLayout.sectionInset = UIEdgeInsetsMake(20, 20, 20, 20)
        self.flowLayout.itemSize = CGSizeMake(41, 41)

self.collectionView = UICollectionView(frame: CGRectZero, collectionViewLayout: flowLayout)

super.init(nibName: nil, bundle: nil)
}

    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }

    override func viewDidLoad() {
        super.viewDidLoad()

        //person items
        memberList.append(curPersonContactItem)

        let fakeAddContactItem:ContactItem = ContactItem()
        fakeAddContactItem.headerImage = ImageDefaulHeader
        fakeAddContactItem.type = ContactType.Person
        memberList.append(fakeAddContactItem)

        //collection view
        self.collectionView.frame = CGRectMake(
            0,
            0,
            self.view.bounds.width,
            85)
//        self.collectionView.backgroundColor = ColorMessageTableViewBackground
        //for debug
        self.collectionView.backgroundColor = UIColor.whiteColor()

        self.collectionView.delegate = self
        self.collectionView.dataSource = self
        self.collectionView.registerClass(UICollectionViewCell.self,
            forCellWithReuseIdentifier: StrIdPersonContactCollectionViewCell)

        self.view.addSubview(self.collectionView)

        self.view.backgroundColor = ColorMessageTableViewBackground
    }

    func numberOfSectionsInCollectionView(collectionView: UICollectionView) -> Int {
        return 1
    }

    func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return memberList.count
    }

    func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
        let cell:UICollectionViewCell = collectionView.dequeueReusableCellWithReuseIdentifier(StrIdPersonContactCollectionViewCell, forIndexPath: indexPath)

        cell.backgroundColor = UIColor.yellowColor()
        let imageView:UIImageView = UIImageView(image: memberList[indexPath.row].headerImage)
        imageView.center = cell.contentView.center
        cell.contentView.addSubview(imageView)

        return cell

}

效果：