Swift UICollectionView节标题和;页脚显示错误的方式-iOS
问题是:Swift UICollectionView节标题和;页脚显示错误的方式-iOS,swift,uicollectionview,sectionheader,Swift,Uicollectionview,Sectionheader,问题是: SupplementaryView上有一个textLabel,但是文本显示在错误的位置,而页眉和页脚以及textLabel正好显示在正确的位置 如图所示,只有第一节页眉有标题,其他页眉或页脚文本看不见(它们在屏幕上,但您必须向下滚动才能看到)。 我不知道怎么解决它 我在viewDidLoad功能中设置了我的collectionview,如下所示: func setupCollectionsView(){ let width:CGFloat = self.view.frame.s
SupplementaryView
上有一个textLabel
,但是文本显示在错误的位置,而页眉和页脚以及textLabel正好显示在正确的位置
如图所示,只有第一节页眉有标题,其他页眉或页脚文本看不见(它们在屏幕上,但您必须向下滚动才能看到)。我不知道怎么解决它 我在
viewDidLoad
功能中设置了我的collectionview,如下所示:
func setupCollectionsView(){
let width:CGFloat = self.view.frame.size.width/4
let flowLayout = UICollectionViewFlowLayout()
flowLayout.minimumInteritemSpacing = 5
flowLayout.minimumLineSpacing = 5
flowLayout.estimatedItemSize = CGSizeMake(width, width)
flowLayout.headerReferenceSize = CGSizeMake(self.view.frame.size.width, 30)
flowLayout.footerReferenceSize = CGSizeMake(self.view.frame.size.width, 30)
flowLayout.scrollDirection = UICollectionViewScrollDirection.Vertical
collectionView = UICollectionView(frame: self.view.frame, collectionViewLayout: flowLayout)
collectionView.dataSource = self
collectionView.delegate = self
collectionView.registerClass(FuncViewCell.self, forCellWithReuseIdentifier: "collectionView")
collectionView.backgroundColor = UIColor.clearColor()
collectionView.registerClass(SupplementaryView.self, forSupplementaryViewOfKind: UICollectionElementKindSectionHeader, withReuseIdentifier: "headerView")
collectionView.registerClass(SupplementaryView.self, forSupplementaryViewOfKind: UICollectionElementKindSectionFooter, withReuseIdentifier: "footerView")
self.view.addSubview(collectionView)
}
对于每个补充视图,我写下以下内容:
func collectionView(collectionView: UICollectionView, viewForSupplementaryElementOfKind kind: String, atIndexPath indexPath: NSIndexPath) -> UICollectionReusableView {
var view:SupplementaryView?
var title:String = ""
switch kind {
case UICollectionElementKindSectionFooter:
view = collectionView.dequeueReusableSupplementaryViewOfKind(kind, withReuseIdentifier: "footerView", forIndexPath: indexPath) as? SupplementaryView
view?.backgroundColor = UIColor ( red: 0.9879, green: 0.3225, blue: 0.4925, alpha: 1.0 )
title = "Footer"
default:
view = collectionView.dequeueReusableSupplementaryViewOfKind(kind, withReuseIdentifier: "headerView", forIndexPath: indexPath) as? SupplementaryView
view?.backgroundColor = UIColor ( red: 0.6571, green: 1.0, blue: 0.8628, alpha: 1.0 )
title = "Header"
}
switch indexPath.section {
case 0:
title = "First \(title)"
default:
title = "Second \(title)"
}
view?.setTitle(title)
return view!
}
我的补充意见是这样实施的:
class SupplementaryView: UICollectionReusableView{
var titleLabel:UILabel!
override init(frame: CGRect) {
super.init(frame: frame)
titleLabel = UILabel(frame: frame)
self.addSubview(titleLabel)
let gesture = UITapGestureRecognizer(target: self, action: #selector(SupplementaryView.tap))
self.addGestureRecognizer(gesture)
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
func setTitle(title:String){
print("Label's frame is\(titleLabel.frame)")
titleLabel.text = title
}
func tap(){
print("\(titleLabel.text!) tapped")
}}
PS:我打印每个文本标签的框架,它们刚好在正确的位置。
.按如下所示更改代码,并查看其是否有效
override init(frame: CGRect) {
super.init(frame: frame)
// There should be self.bounds
titleLabel = UILabel(frame: self.bounds)
self.addSubview(titleLabel)
let gesture = UITapGestureRecognizer(target: self, action: #selector(SupplementaryView.tap))
self.addGestureRecognizer(gesture)
}
按如下所示更改您的代码,并查看它是否有效
override init(frame: CGRect) {
super.init(frame: frame)
// There should be self.bounds
titleLabel = UILabel(frame: self.bounds)
self.addSubview(titleLabel)
let gesture = UITapGestureRecognizer(target: self, action: #selector(SupplementaryView.tap))
self.addGestureRecognizer(gesture)
}
我刚试过,效果很好!你救了我一天!我花了不止一天的时间在这上面!我刚试过,效果很好!你救了我一天!我花了不止一天的时间在这上面!