【发布时间】：2017-01-28 03:45:27
【问题描述】：
当我将集合视图与 segmentView 一起使用时遇到问题。
我有一个viewController，它有一个 segmentView，其中包含 4 个元素 (0 => 全部、1 => 照片、2 => 音频、3 => 视频)
这是和示例：
我有一个 collectionView 来显示数据，具体取决于从 segmentController 中点击的类别
它正在工作并显示数据，这是我的 collectionView 显示数据的方法
// MARK: Datasource collection method
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
// All Items
if segmentStatues == 0
{
let cellForAll = collectionView.dequeueReusableCell(withReuseIdentifier: "AllItemsCell", for: indexPath) as! AllItemsCollectionViewCell
// reset elements before declare
cellForAll.cellImage.image = nil
cellForAll.playBtn.isHidden = true
cellForAll.layer.borderWidth = 1
cellForAll.layer.borderColor = UIColor(red:0.93, green:0.93, blue:0.93, alpha:1.0).cgColor
// When type is an image
if sociaPosts[(indexPath as NSIndexPath).row].postType == "image"
{
cellForAll.cellImage.sd_setImage(with: URL(string: sociaPosts[(indexPath as NSIndexPath).row].postUrl))
}else if sociaPosts[(indexPath as NSIndexPath).row].postType == "audio"
{
cellForAll.cellImage.image = UIImage(named: "recorde_icon")
}else if sociaPosts[(indexPath as NSIndexPath).row].postType == "video"
{
cellForAll.cellImage.sd_setImage(with: URL(string: sociaPosts[(indexPath as NSIndexPath).row].thumbURL))
cellForAll.playBtn.isHidden = false
}
return cellForAll
}else{
// Cell if Images or videos or audios
let newCell = collectionView.dequeueReusableCell(withReuseIdentifier: "beepbeep", for: indexPath) as! userProfileImageCollectionViewCell
// If the type is images
if segmentStatues == 1
{
// Set image URL
newCell.cellImage.sd_setImage(with: URL(string: imagesPosts[(indexPath as NSIndexPath).row].postUrl))
// Get image likes and comments and shares
newCell.likeCount.text = String(imagesPosts[(indexPath as NSIndexPath).row].likes_count)
newCell.commentCount.text = String(imagesPosts[(indexPath as NSIndexPath).row].comments_count)
newCell.shareCount.text = String(imagesPosts[(indexPath as NSIndexPath).row].shares_count)
} else if segmentStatues == 3
{
// For Video player
var player = newCell.customVid
player = Bundle.main.loadNibNamed("VieoPlayer", owner: self, options: nil)?.last as? videoPlayer
player?.newIntitVideoPlayer(forViewController: self, videoURL: videosPosts[indexPath.row].postUrl , videoThumbnail: URL(string: videosPosts[indexPath.row].thumbURL), onReady: nil)
// Set video URL and Thumbnail
// Get video likes and comments and shares
newCell.likeCount.text = String(videosPosts[(indexPath as NSIndexPath).row].likes_count)
newCell.commentCount.text = String(videosPosts[(indexPath as NSIndexPath).row].comments_count)
newCell.shareCount.text = String(videosPosts[(indexPath as NSIndexPath).row].shares_count)
}else if segmentStatues == 2
{
// Audio player
let ad = Bundle.main.loadNibNamed("AudioPlayerView", owner: self, options: nil)?.last as! AudioPlayerView
ad.frame = CGRect(x: (newCell.contentView.frame.size.width - newCell.contentView.frame.size.height * 0.6) / 2, y: 20 , width: newCell.contentView.frame.size.height * 0.6, height: newCell.contentView.frame.size.height * 0.6)
ad.playImageView.image = nil
ad.tag = 6666
newCell.contentView.addSubview(ad)
// Set audio URL
ad.audioPath = URL(string: audiosPosts[indexPath.row].postUrl)
ad.viewInitialization()
// Get Audio likes and comments and shares
newCell.likeCount.text = String(audiosPosts[(indexPath as NSIndexPath).row].likes_count)
newCell.commentCount.text = String(audiosPosts[(indexPath as NSIndexPath).row].comments_count)
newCell.shareCount.text = String(audiosPosts[(indexPath as NSIndexPath).row].shares_count)
}
return newCell
}
}
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
if self.segmentStatues == 0
{
return sociaPosts.count
}else if self.segmentStatues == 1
{
return imagesPosts.count
}else if self.segmentStatues == 2
{
return audiosPosts.count
}else
{
return videosPosts.count
}
}
我的收藏视图中有 2 个自定义单元格，一个用于所有项目，另一个用于（图像-音频-视频）视图
我的问题是数据正在显示，但是当我在 userProfileImageCollectionViewCell
中的段之间更改时，单元格重复这两张图说明问题
单击音频段时显示所有音频单元格
但是当我点击像这样复制的图像或视频片段单元格后
仅在音频 - 图像 - 视频中发生**(userProfileImageCollectionViewCell)**
最后是我的 userProfileImageCollectionViewCell 代码：
更新：
import UIKit
import SDWebImage
class userProfileImageCollectionViewCell: UICollectionViewCell {
@IBOutlet weak var customVid: videoPlayer!
@IBOutlet weak var cellImage: UIImageView!
@IBOutlet weak var likeButton: UIButton!
@IBOutlet weak var likeCount: UILabel!
@IBOutlet weak var commentButton: UIButton!
@IBOutlet weak var commentCount: UILabel!
@IBOutlet weak var shareButton: UIButton!
@IBOutlet weak var shareCount: UILabel!
override func prepareForReuse() {
cellImage.sd_setImage(with: nil)
self.customVid.subviews.forEach({ $0.removeFromSuperview() })
}
}
【问题讨论】：
-
In
userProfileImageCollectionViewCellinprepareForReuse()重置所有值（尤其是在一种情况下可能存在但在另一种情况下不存在的值）。否则，您可以在tableView:cellForRowAtIndexPath()执行此操作，但由于您的单元格有一个自定义文件，我建议您在prepareForReuse()执行此操作。 -
segmentedController 操作中的
collectionView.reloadData()应该对您有所帮助。 -
最后一个条件只使用
else而不是else if segmentStatues == 2。 -
@Larme 如何重置我的数据？特别是音频和视频？
-
单元格被重复使用，所以问题是您在视频的情况下添加子视图：
newCell.contentView.addSubview(player)为其添加视图，然后将其删除。如果您滚动很多并使用 3D Hierarchy Debug，您会看到其中有几个在彼此之上。
标签： ios swift uicollectionview uisegmentedcontrol