问题描述
我的TableViewCells中的动画出现问题。每当有人越过列表中的项目时，进度条会在4秒钟内从0.0动画到1.0：
func startAnimation() {
let generator = UIImpactFeedbackGenerator(style: .medium)
generator.impactOccurred()
if items![indexRow!].checked {
self.delegate?.changeButton(state: false,indexSection: indexSection!,indexRow: indexRow!,itemID: itemID!)
self.progressBar.setProgress(0.0,animated: false)
self.checkBoxOutlet.setBackgroundImage(#imageLiteral(resourceName: "checkBoxOUTLINE "),for: .normal)
} else {
self.checkBoxOutlet.setBackgroundImage(#imageLiteral(resourceName: "checkBoxFILLED "),for: .normal)
self.tempState = true
UIView.animate(withDuration: 4.0,animations: {
self.progressBar.setProgress(1.0,animated: true)
}) { (finished: Bool) in
self.workItem = dispatchWorkItem {
self.delegate?.changeButton(state: true,indexSection: self.indexSection!,indexRow: self.indexRow!,itemID: self.itemID)
}
dispatchQueue.main.asyncAfter(deadline: .Now() + 3.3,execute: self.workItem!)
}
}
}
这有效，动画效果很好。但是，每当彼此快速检查多个项目时，当触发的第一个动画完成时，动画就会停止。 Here is a screenrecord of the issue.
如您所见，有两个主要问题：
我怀疑问题在于触发的委托方法，而不是此处的动画。这是我的委托方法（用于更新Firestore中的数据）：
func changeButton(state: Bool,indexSection: Int?,indexRow: Int?,itemID: String?) {
if let indexSection = indexSection,let indexRow = indexRow {
sections[indexSection].items[indexRow].checked = state
}
let generator = UIImpactFeedbackGenerator(style: .light)
generator.impactOccurred()
if let itemID = itemID {
let itemRef = db.collection(K.FStore.lists).document(currentListID!).collection(K.FStore.sections).document("\(indexSection!)").collection(K.FStore.items).document(itemID)
if sections[indexSection!].items[indexRow!].checked {
itemRef.updateData([
K.Item.isChecked: true,K.Item.checkedBy: currentUserID!,K.Item.dateChecked: Date()
]) { err in
if let err = err {
print("Error writing document: \(err)")
} else {
print("Document successfully written!")
}
if let indexSection = indexSection,let indexRow = indexRow {
if self.sections[indexSection].items != nil {
let item = self.sections[indexSection].items[indexRow]
let itemRef = self.db.collection(K.FStore.lists).document(self.currentListID!).collection(K.FStore.sections).document("\(indexSection)").collection(K.FStore.items).document(item.itemID!)
itemRef.getDocument { (document,error) in
if let document = document,document.exists {
// Get the properties of the item
let name = document.data()?[K.Item.name] as? String
let uid = document.data()?[K.Item.uid] as? String
let category = document.data()?[K.Item.categoryNumber] as? Int
let isChecked = document.data()?[K.Item.isChecked] as? Bool
let dateCreated = document.data()?[K.Item.date] as? Date
let dateChecked = document.data()?[K.Item.dateChecked] as? Date
let checkedBy = document.data()?[K.Item.checkedBy] as? String
self.db.collection(K.lists).document(self.currentListID!).collection(K.FStore.sectionsChecked).document("\(category!)").collection(K.FStore.items).addDocument(data: [
K.Item.name: name,K.Item.isChecked: isChecked,K.Item.categoryNumber: category,K.Item.date: dateCreated,K.Item.dateChecked: dateChecked,K.Item.checkedBy: checkedBy,K.Item.uid: uid,K.Item.dateDeleted: Date()
]) { err in
if let err = err {
print("Error adding document: \(err)")
} else {
let cell = self.tableView.cellForRow(at: IndexPath(item: indexRow,section: indexSection)) as? TaskCell
if let cell = cell {
cell.progressBar.setProgress(0.0,animated: false)
}
// If successful,delete the item in the normal collection
itemRef.delete() { err in
if let err = err {
print("Error removing document: \(err)")
} else {
print("Document successfully removed!")
}
}
}
}
}
}
}
}
}
} else {
itemRef.updateData([
K.Item.isChecked : false
]) { err in
if let err = err {
print("Error writing document: \(err)")
} else {
print("Document successfully written!")
}
}
}
}
}
这与单元格的刷新有关吗？在这一点上我很迷茫，不知道我在做什么错。
如果有人可以帮助我，那将是非常棒的。
解决方法
暂无找到可以解决该程序问题的有效方法，小编努力寻找整理中！
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