本着分享精神，分享一个工具类的列表，或许你用得到, 需要json文件的评论，秒发
车牌查询TableView列表
import Foundation
import UIKit
import SwiftyJSON
class LicensePlateListViewController: UIViewController {
fileprivate var tableView: UITableView!
fileprivate let licenseData: [String: [Any]]? = {
if let pathURL = Bundle.main.url(forResource: "license_plate", withExtension: "json") {
do {
let data = try Data(contentsOf: pathURL)
let jsonObj = JSON(data: data)
if jsonObj != JSON.null {
var result = [LicensePlate]()
for (_, subJson):(String, JSON) in jsonObj {
let item = LicensePlate(json: subJson)
result.append(item)
}
let alphas = Array(Set(result.map({ $0.firstChar })))
let sortedAlpha = alphas.sorted(by: { $0 < $1 })
var mergedResult = [[LicensePlate]]()
for alpha in sortedAlpha {
let values = result.filter( {$0.firstChar == alpha } )
mergedResult.append(values)
}
return ["alphas":sortedAlpha,"licenses":mergedResult]
}
}
catch {
print(error.localizedDescription)
}
}
return nil
}()
fileprivate var cellDescriptors = [[[String: Any]]]()
fileprivate var visibleRowsPerSection = [[Int]]()
override func viewDidLoad() {
super.viewDidLoad()
self.title = "车牌查询"
self.navigationItem.leftBarButtonItem = UIBarButtonItem(image: UIImage(named: "item_back_white"), style: .done, target: self, action: #selector(backAction(_:)))
let tableView = UITableView(frame: view.bounds, style: .grouped)
tableView.delegate = self
tableView.dataSource = self
tableView.separatorColor = UIColor(hex: "EEEEEE")
view.addSubview(tableView)
self.tableView = tableView
tableView.register(CustomContentCell.self)
loadCellDescriptors()
let vc:UIViewController = UIViewController()
}
func loadCellDescriptors() {
//https://www.appcoda.com.tw/expandable-table-view/
if let data = licenseData {
let result = data["licenses"] as! [[LicensePlate]]
var descriptors = [[[String: Any]]]()
for sameAlphaProvinces in result {
var provinceItem = [[String:Any]]()
for province in sameAlphaProvinces {
var plain = [String: Any]()
let cities = province.cities
// 配置省份cell
plain["value"] = province.province
plain["isExpandable"] = true
plain["isExpanded"] = false
plain["isVisible"] = true
plain["additionalRows"] = cities.count
plain["isProvince"] = true
plain["cellIdentifier"] = "provinceCellID"
// 省份加到第一个
provinceItem.append(plain)
// 配置城市cell
var cityPlain = [String: Any]()
for city in cities {
cityPlain["value"] = city.code + " " + city.name
cityPlain["isExpandable"] = false
cityPlain["isExpanded"] = false
cityPlain["isVisible"] = false
cityPlain["additionalRows"] = 0
cityPlain["isProvince"] = false
cityPlain["cellIdentifier"] = "licensePlateCellID"
// 城市依次往后加
provinceItem.append(cityPlain)
}
}
descriptors.append(provinceItem)
cellDescriptors = descriptors
getIndicesOfVisibleRows()
tableView.reloadData()
}
}
}
func getIndicesOfVisibleRows() {
visibleRowsPerSection.removeAll()
for currentSectionCells in cellDescriptors {
var visibleRows = [Int]()
for row in 0...((currentSectionCells as [[String: AnyObject]]).count - 1) {
if currentSectionCells[row]["isVisible"] as! Bool == true {
visibleRows.append(row)
}
}
visibleRowsPerSection.append(visibleRows)
}
}
func getCellDescriptorFor(indexPath: IndexPath) -> [String: AnyObject] {
let indexOfVisibleRow = visibleRowsPerSection[indexPath.section][indexPath.row]
let cellDescriptor = cellDescriptors[indexPath.section][indexOfVisibleRow] as [String: AnyObject]
return cellDescriptor
}
func backAction(_ item: UIBarButtonItem) {
navigationController?.popViewController(animated: true)
}
}
extension LicensePlateListViewController: UITableViewDataSource {
func numberOfSections(in tableView: UITableView) -> Int {
return cellDescriptors.count
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return visibleRowsPerSection[section].count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell:CustomContentCell = tableView.dequeueReuseableCell(indexPath: indexPath)
let currentCellDescriptor = getCellDescriptorFor(indexPath: indexPath)
if let value = currentCellDescriptor["value"] as? String {
if currentCellDescriptor["isProvince"] as! Bool == true {
cell.accessoryType = .disclosureIndicator
cell.textLabel?.font = UIFont.systemFont(ofSize: 16)
} else {
cell.accessoryType = .none
cell.textLabel?.font = UIFont.systemFont(ofSize: 13)
}
cell.textLabel?.text = value
}
return cell
}
func sectionIndexTitles(for tableView: UITableView) -> [String]? {
if let licenseData = licenseData {
let origin = licenseData["alphas"] as? [String]
let new = origin?.insert(separator: " ")
return new
}
return nil
}
}
extension LicensePlateListViewController: UITableViewDelegate {
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
let indexOfTappedRow = visibleRowsPerSection[indexPath.section][indexPath.row]
if cellDescriptors[indexPath.section][indexOfTappedRow]["isExpandable"] as! Bool == true {
var shouldExpandAndShowSubRows = false
if cellDescriptors[indexPath.section][indexOfTappedRow]["isExpanded"] as! Bool == false {
shouldExpandAndShowSubRows = true
}
cellDescriptors[indexPath.section][indexOfTappedRow]["isExpanded"] = shouldExpandAndShowSubRows
for i in (indexOfTappedRow + 1)...(indexOfTappedRow + (cellDescriptors[indexPath.section][indexOfTappedRow]["additionalRows"] as! Int)) {
cellDescriptors[indexPath.section][i]["isVisible"] = shouldExpandAndShowSubRows
}
} else {
var indexOfParentCell: Int!
for i in stride(from: indexOfTappedRow - 1, through: 0, by: -1) {
if cellDescriptors[indexPath.section][i]["isExpandable"] as! Bool == true {
indexOfParentCell = i
break
}
}
cellDescriptors[indexPath.section][indexOfParentCell]["isExpanded"] = false
for i in (indexOfParentCell + 1)...(indexOfParentCell + (cellDescriptors[indexPath.section][indexOfParentCell]["additionalRows"] as! Int)) {
cellDescriptors[indexPath.section][i]["isVisible"] = false
}
}
getIndicesOfVisibleRows()
tableView.reloadSections(IndexSet(integer: indexPath.section), with: .fade)
tableView.deselectRow(at: indexPath, animated: true)
}
func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
if let licenseData = licenseData {
return licenseData["alphas"]?[section] as? String
}
return ""
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
let currentCellDescriptor = getCellDescriptorFor(indexPath: indexPath)
switch currentCellDescriptor["cellIdentifier"] as! String {
case "provinceCellID":
return 60
default:
return 46
}
}
func tableView(_ tableView: UITableView, willDisplayHeaderView view: UIView, forSection section: Int) {
let header = view as? UITableViewHeaderFooterView
header?.textLabel?.textColor = UIColor(hex: "09BB07")
}
func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
return 30
}
func tableView(_ tableView: UITableView, heightForFooterInSection section: Int) -> CGFloat {
return 0.01
}
}
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