调整单元格大小以适应所有屏幕? [英] Adjust cellsize for fit all screens?

问题描述

我正在尝试使我的应用适应所有屏幕尺寸，但我不知道如何去做.是否可以根据屏幕调整单元格的大小?目前我只配置我的 UICollectionView 如下:

I'm trying to fit my app to all screensize, however I can't figure out how to. Is it possible to resize the cell depending on the screen? At the moment I just configure my UICollectionView as followed:

 func numberOfSections(in collectionView: UICollectionView) -> Int {
        // #warning Incomplete implementation, return the number of sections
        return 1
    }


    func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        // #warning Incomplete implementation, return the number of items
        return fields.count
    }

    func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "Cell", for: indexPath) as! FieldDistributionCollectionViewCell


        cell.frame.size = CGSize(width: ?, height: ?)
        return cell
    }

有推荐的方法吗?还是我需要确定手机的版本并手动设置尺寸?在较小的屏幕(4、4s)上，我只想要 2 列，但在(5、5s、6、6s)上需要 3 列.我基本上只是希望单元格大小适合正确的分辨率.

Is there a recommended way? Or do I need to determine the version of the phone and set the size manually? On the smaller screen (4, 4s) I only want 2 columns, but 3 columns on the (5, 5s, 6, 6s). I basically just want the cell size to fit the right resolution.

推荐答案

试试这个代码:

从collectionView的协议中实现以下功能:

Implement the following functions from collectionView's protocol:

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

  // To get 1 column
 return CGSize(width: view.frame.size.width, height: view.frame.size.width)

 // To get 2 column
 //return CGSize(width: view.frame.size.width/2, height: view.frame.size.width/2)

 // To get 3 column
 // return CGSize(width: view.frame.size.width/3, height: view.frame.size.width/3)

 // Toget 4 column
 // return CGSize(width: view.frame.size.width/4, height: view.frame.size.width/4)
  }

...view 是控制器的(超级)视图

...where view is your controller's (super) view

 // inter-spacing

func collectionView(collectionView: UICollectionView,
    layout collectionViewLayout: UICollectionViewLayout,
    minimumInteritemSpacingForSectionAtIndex section: Int) -> CGFloat {
return 2.0
}

// line-spacing

func collectionView(collectionView: UICollectionView, layout
    collectionViewLayout: UICollectionViewLayout,
    minimumLineSpacingForSectionAtIndex section: Int) -> CGFloat {
return 2.0
}

CollectionView 布局原理.

CollectionView layout principle.

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