我有两个部分的标题，第一部分是评估列表，第二部分是公司列表。当过滤器数组的结果为空时，我试图隐藏节标题。如果您看到照片，我有一个显示部分标题的错误。如何修复我的代码以及如何组织它？ 
class HubTableViewController: UITableViewController, UISearchBarDelegate {
// MARK: - Table view data source
override func numberOfSections(in tableView: UITableView) -> Int {
var numberOfsections = 0
if isSearching {
numberOfsections = 2
}
else {
numberOfsections = 2
}
return numberOfsections
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if (self.isSearching ){
switch Device.size() {
case .screen4_7Inch:
if section == 0{
return filteredAssessments!.count
}
else {
return filteredCompanies!.count
}
default:
if section == 0{
return filteredAssessments!.count
}
else {
return filteredCompanies!.count
}
}
}
else {
switch Device.size() {
case .screen4_7Inch:
if section == 0{
return 3
}
else {
return 3
}
default:
if section == 0{
return 3// return filteredAssessments!.count
}
else {
return 3// return filteredCompanies!.count
}
}
}
}
func addDoneButtonOnKeyboard() {
let doneToolbar: UIToolbar = UIToolbar(frame: CGRect.init(x: 0, y: 0, width: UIScreen.main.bounds.width, height: 50))
doneToolbar.barStyle = .default
let flexSpace = UIBarButtonItem(barButtonSystemItem: .flexibleSpace, target: nil, action: nil)
let done: UIBarButtonItem = UIBarButtonItem(title: "Done", style: .done, target: self, action: #selector(self.doneButtonAction))
let items = [flexSpace, done]
doneToolbar.items = items
doneToolbar.sizeToFit()
searchBar.inputAccessoryView = doneToolbar
}
@objc func doneButtonAction(){
noResultView.removeFromSuperview()
self.searchBar.resignFirstResponder()
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
if isSearching {
if indexPath.section == 0{
let cell = tableView.dequeueReusableCell(withIdentifier: "assessmentCell", for: indexPath) as! AssessmentsTableViewCell
if let a = filteredAssessments?[indexPath.row]{
cell.setlblAssessmentName(a.assessmentName)
cell.setlblAssessmentsType(a.assessmenType)
cell.setlblBalance(a.balance)
}
return cell
}else {
let cell = tableView.dequeueReusableCell(withIdentifier: "companyCell", for: indexPath) as! CompanyTableViewCell
if let c = filteredCompanies?[indexPath.row]{
cell.setLblCompanyName(c.companyName)
cell.setLblNumberOfUsers(c.numberofUser)
}
return cell
}
}
else {
if indexPath.section == 0{
let cell = tableView.dequeueReusableCell(withIdentifier: "assessmentCell", for: indexPath) as! AssessmentsTableViewCell
if let a = assessments?[indexPath.row]{
cell.setlblAssessmentName(a.assessmentName)
cell.setlblAssessmentsType(a.assessmenType)
cell.setlblBalance(a.balance)
}
return cell
}else {
let cell = tableView.dequeueReusableCell(withIdentifier: "companyCell", for: indexPath) as! CompanyTableViewCell
if let c = companies?[indexPath.row]{
cell.setLblCompanyName(c.companyName)
cell.setLblNumberOfUsers(c.numberofUser)
}
return cell
}
}
}
override func tableView(_ tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {
if (section == 0){
let view = tableView.dequeueReusableHeaderFooterView(withIdentifier:
"sectionHeader") as! HubCustomHeader
view.title.text = "My Balances"
view.button.setTitle("VIEW ALL", for: .normal)
return view
}
else {
let view = tableView.dequeueReusableHeaderFooterView(withIdentifier:
"sectionHeader") as! HubCustomHeader
view.title.text = "My Customers"
view.button.setTitle("ADD", for: .normal)
return view
}
}
override func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
if section == 0{
return 50
}
else {
return 50
}
}
func searchBar(_ searchBar: UISearchBar, textDidChange searchText: String) {
if searchBar.text == "" {
isSearching = false
noResultView.removeFromSuperview()
hubtableView.reloadData()
} else {
isSearching = true
filteredAssessments = self.assessments?.filter {
$0.assessmentName.range(of: searchText, options: .caseInsensitive) != nil
}
filteredCompanies = self.companies?.filter {
$0.companyName.range(of: searchText, options: .caseInsensitive) != nil
}
hubtableView.reloadData()
if(filteredCompanies!.isEmpty || filteredCompanies!.isEmpty ){
view.backgroundColor = UIColor.white
view.addSubview(noResultView)
noResultView.center = view.center
self.hubtableView.reloadData()
hubtableView.separatorStyle = .none
}
else
{
tableView.reloadData()
}
}
}
}
最佳答案
更新 heightForHeaderInSection当您尝试隐藏标题时返回高度 0 的方法。
var hideHeader = false // toggle this and reload when you want to hide the header.
override func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
hideHeader ? 0 : 50
}
关于ios - 没有结果时隐藏海关部分？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/62718881/