我尝试使用以下代码在屏幕上呈现简单的 Collection View 。 但是 contentview 中的 subview 不能正常生成
我正在使用 Xcode 7.3.1 在 swift 2.3 中编码 为什么会这样？
这是代码
import Foundation
class CustomerOverdueViewController : BaseViewController , UICollectionViewDelegateFlowLayout {
@IBOutlet weak var collectionView: UICollectionView!
@IBOutlet weak var tableView: UITableView!
@IBOutlet weak var lblTotalOverdue: UILabel!
@IBOutlet weak var lblInvestedFunds: UILabel!
@IBOutlet weak var segmentedControl: UISegmentedControl!
var rangeArray = NSArray()
var selectedOverdueIndex = 0
var selectedColor = UIColor()
override func viewDidLoad() {
super.viewDidLoad()
self.title = "Customer Overdue"
}
@IBAction func segValueChanged(sender: UISegmentedControl) {
}
func numberOfSectionsInCollectionView(collectionView: UICollectionView) -> Int {
return 1
}
func collectionView(collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return 6
}
func collectionView(collectionView: UICollectionView, cellForItemAtIndexPath indexPath: NSIndexPath) -> UICollectionViewCell {
let reuseIdentifier = String("CustomerOverdueCollectionViewCell")
let cell = collectionView.dequeueReusableCellWithReuseIdentifier(reuseIdentifier, forIndexPath: indexPath) as! CustomerOverdueCollectionViewCell
return cell
}
func collectionView(collectionView: UICollectionView, didSelectItemAtIndexPath indexPath: NSIndexPath){
}
func collectionView(collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAtIndexPath indexPath: NSIndexPath) -> CGSize
{
return CGSize(width: collectionView.frame.size.width/2 - 10, height: collectionView.frame.size.height/3 - 10)
}
func collectionView(collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, insetForSectionAtIndex section: Int) -> UIEdgeInsets
{
return UIEdgeInsets(top: 5, left: 5, bottom: 0, right: 5)
}
func collectionView(collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumLineSpacingForSectionAtIndex section: Int) -> CGFloat
{
return 10.0
}
func collectionView(collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, minimumInteritemSpacingForSectionAtIndex section: Int) -> CGFloat
{
return 10.0
}
}
最佳答案
终于找到答案了
覆盖自定义单元格中的布局 subview
override func layoutSubviews() {
super.layoutSubviews()
self.layoutIfNeeded()
}
并在 cellForItemAtIndexpath 中添加以下行
cell.setNeedsLayout()
cell.layoutIfNeeded()
关于ios - 重新加载后 uicollectionviewcell 标签未对齐，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/40718412/