Question

我有这个UICollectionViewController类代码：

class ViewController1: UICollectionViewController  , UICollectionViewDelegateFlowLayout{

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.

        self.collectionView?.backgroundColor = UIColor(white: 0.95, alpha: 1)
        self.collectionView?.alwaysBounceVertical = true
        collectionView?.registerClass(Cell.self, forCellWithReuseIdentifier: "cellid")
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
    override func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {

        return 1
    }
    override func  collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {

        return collectionView.dequeueReusableCellWithReuseIdentifier("cellid", forIndexPath: indexPath)
    }

    func collectionView(collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAtIndexPath indexPath: NSIndexPath) -> CGSize {


        return CGSize(width: view.frame.width, height: 100)


    }

}


class Cell :UICollectionViewCell   {

    //var i : Int = 0

    override init(frame: CGRect) {

        super.init(frame: frame)


        self.setupViews()

    }

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

    var namelabel : UILabel = {

        let label = UILabel()
        label.text = "test"
        //label.font = UIFont.boldSystemFontOfSize(14)
        label.translatesAutoresizingMaskIntoConstraints = false
        return label
    }()

    var distanzalabel : UILabel = {

        let label = UILabel()
        label.text = "200KM"
        //label.font = UIFont.boldSystemFontOfSize(14)
        label.translatesAutoresizingMaskIntoConstraints = false
        return label
    }()

    var imageV : UIImageView = {

        let imageView =  UIImageView()

        //imageView.frame = CGRectMake(0, 0, 450 , 150);
        imageView.image = UIImage(named: "2.jpg")
        imageView.contentMode = .ScaleAspectFit
        //imageView.clipsToBounds = true
        imageView.backgroundColor = UIColor.greenColor()
        imageView.translatesAutoresizingMaskIntoConstraints = false

        return imageView


    }()

    var imageV1 : UIImageView = {

        let imageView =  UIImageView()

        imageView.frame = CGRectMake(0, 0, 20 , 20);
        imageView.image = UIImage(named: "User Male Filled.png")
        imageView.contentMode = .ScaleAspectFit
        //imageView.clipsToBounds = true
        imageView.backgroundColor = UIColor.blackColor()
        imageView.translatesAutoresizingMaskIntoConstraints = false

        return imageView


    }()


    func setupViews(){


        backgroundColor = UIColor.whiteColor()

        self.addSubview(namelabel)
        self.addSubview(distanzalabel)
        self.addSubview(imageV)
        self.addSubview(imageV1)

        let lunghezza = self.frame.width
        let result = lunghezza - 100

        addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("H:|-0-[v0(\(lunghezza))]|", options: NSLayoutFormatOptions(), metrics: nil, views: ["v0" : imageV]))


addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("H:|-\(result)-[v0(30)]|", options: NSLayoutFormatOptions(), metrics: nil, views: ["v0" : imageV1]))

       addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("V:|-5-[v0(33)]-4-[v1]|", options: NSLayoutFormatOptions(), metrics: nil, views: ["v0" : imageV , "v1" : namelabel]))

        addConstraints(NSLayoutConstraint.constraintsWithVisualFormat("V:|-5-[v0(33)]-4-[v1]|", options: NSLayoutFormatOptions(), metrics: nil, views: ["v0" : imageV , "v1" : imageV1]))

      }}

我的问题是，当我执行此代码时，我得到了这个：

http://postimg.org/image/jqwjt0o2f/

从图像中可以看出，这两个图像对于UIImageview的大小来说太小了，我希望这样，例如，如果我有UIImageView＆＃39;大小为30x30，图像填充所有imageView。

我为两个ImageView选择颜色，以显示此UIImageView

的实际大小

如何解决这个问题？

Answer 1

如果他们只有两种模式可以满足你的需要。填充和缩放（或调整大小）模式。

填充模式：保留图像，但可以剪切图像的某些部分。调整大小或缩放模式：将调整图像大小以适合图像视图

ImageView问题中的图像Swift

1 个答案: