在配置文件屏幕中,从firestore中检索用户名、电子邮件ID、汽车类别的数据。这里的汽车类别是紧凑型、小型、中型和全尺寸。并将carCategory参数值存储为字符串(即:carCategory:“1”,这意味着
car category
is
“0”
then its
compact car
if
car category value
is
“1”
then its small.)。
在用户更新页面中,汽车类别是一个集合视图流布局是旋转视图
如果汽车类别单元格索引路径值为1,则显示单元格详细信息而不滚动。
以下是我例外的屏幕截图:
我的问题是如何在集合视图单元中加载特定的单元索引。
这是我迄今为止尝试过的代码:
**collection view and carousel view**
var car=[string]()
var carcategory=[“紧凑型”、“小型”、“中型”、“全型”、“厢式货车/皮卡车”]
var carCategoryImage=[“CompactCar”,“SmallCar”,“MediumCar”,“FullCar”,“VanPickup”]
var carcategorymeter=[“3.5-4.5 m”,“2.5-3.5 m”,“4-5 m”,“5-5.5 m”,“5.5-6.5 m”]
var carcategorylabel:uilabel?
变量CarmetersLabel:uiLabel?
var carCategoryImageLabel:uiImageView?
var currentpagevalue:字符串?
var当前单元格:int?
func集合视图(uCollectionView:uiCollectionView,NumberOfitemsInSection:int)->int{
返回carcategory.count
}
func集合视图(uCollectionView:uiCollectionView,cellForItemAt indexPath:indexPath)->uiCollectionViewCell{
让cell=collectionview.dequeuerusablecell(带有reuseIdentifier:“cell”,用于:indexPath)作为!汽车收藏设置收藏查看单元
cell.carName.text=carCategory[indexPath.row]
打印(“carCategoryIndex\(carCategory)”)
cell.carImage.image=uiImage(名称:carCategoryImage[indexPath.row])
cell.carmeters.text=carCategoryMeter[indexPath.row]
返回单元格
}
fileprivate var pagesize:cgsize{
让layout=self.carcollection.collectionviewlayout作为!上转盘下布局
var pagesize=layout.itemsize
如果layout.scrollDirection=.horizontal{
pagesize.width+=布局。最小行距
}其他{
pagesize.height+=布局。最小行距
}
返回页面大小
}
func scrollview双端减速(u scrollview:uiscrollview){
让layout=carcollection.collectionviewlayout作为!上转盘下布局
让pageside=(layout.scrollDirection==.horizontal)?self.pagesize.width:self.pagesize.height
设为offset=(layout.scrolldirection==.horizontal)?scrollview.contentoffset.x:scrollview.contentoffset.y
当前页=int(楼层((偏移-页边/2)/页边)+1)
打印(“当前页::::\(当前页)”)
}
fileprivate var当前页:int!{
迪塞特{
当前页=self.currentCell
打印(“当前页::::\(当前页)”)
让character=self.carcategory[self.currentpage!]
打印(“字符::::\(字符)”)
}
}
func loadUserData()。{
中的api.user.observecurrentuser(user)
如果self.username.text!=零{
self.username.text=用户名
print(“用户名::\(字符串(描述:user.username))”)
}
如果让photourlstring=user.profileimageurl{
让photourl=url(字符串:photourl string)
self.profileimage.sd_setimage(带:photourl)
}
如果self.email.text!=零{
self.email.text=用户.email
}
切换user.carcategory{
案例“0”:
Self.Carcategorylabel?.text=“紧凑型”
Self.CarmetersLabel?.text=“3.5-4.5米”
self.carCategoryImageLabel?.image=uiimage(命名为“CompactCar”)
self.currentCell=0
print(“currentCell::\(string(describing:self.currentCell))”)
self.carcollection.reloaddata()。
案例“1”:
Self.Carcategorylabel?.text=“小”
Self.CarmetersLabel?.text=“2.5-3.5米”
self.carCategoryImageLabel?.image=uiimage(命名为:“smallcar”)
Self.Carcategorylabel?.text=“1”
self.currentCell=1
print(“currentCell::\(string(describing:self.currentCell))”)
self.carcollection.reloaddata()。
案例“2”:
Self.Carcategorylabel?.text=“中型”
Self.CarmetersLabel?.text=“4-5米”
self.carCategoryImageLabel?.image=uiimage(命名为“mediumcar”)
self.currentCell=2个
print(“currentCell::\(string(describing:self.currentCell))”)
self.carcollection.reloaddata()。
案例“3”:
Self.Carcategorylabel?.text=“满”
Self.CarmetersLabel?.text=“5-5.5米”
self.carCategoryImageLabel?.image=uiimage(命名为“fullcar”)
self.currentcell=3个
print(“currentCell::\(string(describing:self.currentCell))”)
self.carcollection.reloaddata()。
案例“4”:
Self.Carcategorylabel?.text=“货车/皮卡车”
Self.CarmetersLabel?.text=“5.5-6.5米”
self.carCategoryImageLabel?.image=uiimage(命名为:“vanpickup”)
self.currentCell=4个
print(“currentCell::\(string(describing:self.currentCell))”)
self.carcollection.reloaddata()。
违约:
Self.Carcategorylabel?.text=“”
Self.CarmetersLabel?.text=“”
self.carCategoryImageLabel?.image=uiimage(名称:“”)
打破
}
}
}//加载用户数据
汽车类别是“0”那么它的小型汽车如果汽车类别值是“1”然后是小的)。
在用户更新页面中,汽车类别是集合视图流布局是旋转视图
如果汽车类别单元格索引路径值为1,则显示单元格详细信息而不滚动。
以下是我的截图:
我的问题是如何在集合视图单元中加载特定的单元索引。
这是我迄今为止尝试的代码:
**collection view and carousel view**
var car = [String]()
var carCategory = [ "Compact","small", "Midsize", "Full", "Van/Pick-up" ]
var carCategoryImage = ["compactCar", "smallCar", "mediumCar", "fullCar", "vanPickup"]
var carCategoryMeter = ["3.5 - 4.5m", "2.5 - 3.5m", "4 - 5m", "5 - 5.5m", "5.5 - 6.5m"]
var carCategoryLabel: UILabel?
var carMetersLabel: UILabel?
var carCategoryImageLabel: UIImageView?
var currentPageValue: String?
var currentCell: Int?
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return carCategory.count
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "Cell", for: indexPath) as! carCollectionSettingCollectionViewCell
cell.carName.text = carCategory[indexPath.row]
print("carcategoryIndex\(carCategory)")
cell.carImage.image = UIImage(named: carCategoryImage[indexPath.row])
cell.carMeters.text = carCategoryMeter[indexPath.row]
return cell
}
fileprivate var pageSize: CGSize {
let layout = self.carCollection.collectionViewLayout as! UPCarouselFlowLayout
var pageSize = layout.itemSize
if layout.scrollDirection == .horizontal {
pageSize.width += layout.minimumLineSpacing
} else {
pageSize.height += layout.minimumLineSpacing
}
return pageSize
}
func scrollViewDidEndDecelerating(_ scrollView: UIScrollView) {
let layout = carCollection.collectionViewLayout as! UPCarouselFlowLayout
let pageSide = (layout.scrollDirection == .horizontal) ? self.pageSize.width : self.pageSize.height
let offset = (layout.scrollDirection == .horizontal) ? scrollView.contentOffset.x : scrollView.contentOffset.y
currentPage = Int(floor((offset - pageSide / 2) / pageSide) + 1)
print("currentpage::::\(currentPage)")
}
fileprivate var currentPage: Int! {
didSet {
currentPage = self.currentCell
print("currentapge::::\(currentPage)")
let character = self.carCategory[self.currentPage!]
print("character::::\(character)")
}
}
func loadUserData(){
API.User.observeCurrentUser { (user) in
if self.userName.text != nil {
self.userName.text = user.username
print("username:::\(String(describing: user.username))")
}
if let photoUrlString = user.profileImageURL {
let photoUrl = URL(string: photoUrlString)
self.profileImage.sd_setImage(with: photoUrl)
}
if self.email.text != nil {
self.email.text = user.email
}
switch user.carCategory {
case "0":
self.carCategoryLabel?.text = "Compact"
self.carMetersLabel?.text = "3.5 - 4.5m"
self.carCategoryImageLabel?.image = UIImage(named: "compactCar")
self.currentCell = 0
print("currentCell:::\(String(describing: self.currentCell))")
self.carCollection.reloadData()
case "1":
self.carCategoryLabel?.text = "Small"
self.carMetersLabel?.text = "2.5 - 3.5m"
self.carCategoryImageLabel?.image = UIImage(named: "smallCar")
self.carCategoryLabel?.text = "1"
self.currentCell = 1
print("currentCell:::\(String(describing: self.currentCell))")
self.carCollection.reloadData()
case "2":
self.carCategoryLabel?.text = "Midsize"
self.carMetersLabel?.text = "4 - 5m"
self.carCategoryImageLabel?.image = UIImage(named: "mediumCar")
self.currentCell = 2
print("currentCell:::\(String(describing: self.currentCell))")
self.carCollection.reloadData()
case "3":
self.carCategoryLabel?.text = "Full"
self.carMetersLabel?.text = "5 - 5.5m"
self.carCategoryImageLabel?.image = UIImage(named: "fullCar")
self.currentCell = 3
print("currentCell:::\(String(describing: self.currentCell))")
self.carCollection.reloadData()
case "4":
self.carCategoryLabel?.text = "Van/Pick-up"
self.carMetersLabel?.text = "5.5 - 6.5m"
self.carCategoryImageLabel?.image = UIImage(named: "vanPickup")
self.currentCell = 4
print("currentCell:::\(String(describing: self.currentCell))")
self.carCollection.reloadData()
default:
self.carCategoryLabel?.text = ""
self.carMetersLabel?.text = ""
self.carCategoryImageLabel?.image = UIImage(named: "")
break
}
}
}//loaduserData
