使用搜索栏中的条目加载单元格时图像显示不正确 iOS swift3
image is not displayed correctly while loading cell with entries in searchbar iOS swift3
在这里，我试图在搜索 starts.The 搜索名称时显示过滤后的数据结果，但我不明白如何通过搜索获取图像 display.I 认为错误出现在搜索的过滤器内容中 我是 iOS 的新手，如有任何帮助，我们将不胜感激
import UIKit
import Foundation
import SDWebImage
class TableViewController: UITableViewController,UISearchBarDelegate,UISearchResultsUpdating {
//var sections = ["recent","old"]
var TableData:Array<String> = Array <String>()
//var TableDataRecent:Array<String> = Array <String>()
var TableImage:Array<String> = Array <String>()
var appoid:Array<String> = Array <String>()
var filteredArray:[String]=[]
var filteredImage:[String]=[]
let searchController = UISearchController(searchResultsController:nil)
override func viewDidLoad() {
super.viewDidLoad()
getData()
self.tableView.register(UITableViewCell.self, forCellReuseIdentifier: "cells")
searchController.searchResultsUpdater = self
searchController.dimsBackgroundDuringPresentation=false
definesPresentationContext=true
self.tableView.tableHeaderView = searchController.searchBar
// Do any additional setup after loading the view, typically from a nib.
tableView.reloadData()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
//
// override func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
//
// return sections[section]
//
// }
//
// override func numberOfSections(in tableView: UITableView) -> Int {
// // #warning Incomplete implementation, return the number of sections
//
// return sections.count
//
// }
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if searchController.isActive && !searchController.searchBar.isEqual("") {
return self.filteredArray.count
}
else{
return TableData.count
}
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
//here cells is the identifier name of prototype cell
let cell = self.tableView.dequeueReusableCell(withIdentifier: "cells", for: indexPath)
if searchController.isActive && !searchController.searchBar.isEqual(""){
cell.textLabel?.text = filteredArray[indexPath.row]
//cell.imageView?.image = filteredImage[indexPath.row]
// print("filteredimage")
// print(filteredImage)
// print(indexPath.row)
cell.imageView?.sd_setImage(with: URL(string: TableImage[indexPath.row]), placeholderImage: UIImage(named: "PA"))
print(TableData[indexPath.row])
print(appoid[indexPath.row])
}
else{
cell.textLabel?.text = self.TableData[indexPath.row]
//cell.imageView?.image = self.TableImage[indexPath.row]
cell.imageView?.sd_setImage(with: URL(string: TableImage[indexPath.row]), placeholderImage: UIImage(named: "PA"))
//cell.= appoid[indexPath.row]
}
return cell
}
func filterContentForSearch(searchString:String){
self.filteredArray=self.TableData.filter(){nil != [=11=].range(of:searchString)}
self.filteredImage=self.TableImage.filter(){nil != [=11=].range(of:searchString)}
self.tableView.reloadData()
}
func updateSearchResults(for searchController: UISearchController) {
self.filterContentForSearch(searchString: searchController.searchBar.text!)
}
func getData() {
var request = URLRequest(url: URL(string: "*********")!)
//request.httpMethod = "POST"
//let postString = "date="+x
//request.httpBody = postString.data(using: .utf8)
//print(request.httpBody)
let task = URLSession.shared.dataTask(with: request) { data, response, error in
guard let data = data, error == nil else { // check for fundamental networking error
print("error=\(error)")
return
}
if let httpStatus = response as? HTTPURLResponse, httpStatus.statusCode != 200 { // check for http errors
print("statusCode should be 200, but is \(httpStatus.statusCode)")
print("response = \(response)")
}
let responseString = String(data: data, encoding: .utf8)
print("responseString = \(responseString)")
do{
let json = try JSONSerialization.jsonObject(with: data, options:.allowFragments) as! [String:AnyObject]
if let stations = json["result"] as? [[String: AnyObject]] {
for station in stations {
let name = station["patient_name"] as! String
//self.login = login_value
let profile_pic = station["image"] as! String
let status = station["status"] as! String
let appo_id = station["id"] as! String
// let appo_id = station["appointment_id"] as! String
//let status = station["status"] as! String
//let appo_time = station["appointment_time"] as! String
//let appo_duration = station["time_duration"] as! String
//let reason = station["reason"] as! String
print(name,status)
self.TableData.append(name)
self.TableImage.append(profile_pic)
self.appoid.append(appo_id)
}
print(self.TableData)
print(self.TableImage)
//print(self.items)
//self.do_table_refresh();
self.tableView.reloadData()
}
}catch {
print("Error with Json: \(error)")
}
}
task.resume()
}
}
不要为图像、数据和 appoid 保留单独的数组。创建结构对象并对结构对象进行搜索。
试试这个，
import UIKit
import Foundation
import SDWebImage
struct TableObject {
var name: String = ""
var image: String = ""
var appoId: String = ""
}
class TableViewController: UITableViewController,UISearchBarDelegate,UISearchResultsUpdating {
//var sections = ["recent","old"]
var tableDataSource: [TableObject] = []
var filteredArray: [TableObject] = []
let searchController = UISearchController(searchResultsController:nil)
override func viewDidLoad() {
super.viewDidLoad()
getData()
self.tableView.register(UITableViewCell.self, forCellReuseIdentifier: "cells")
searchController.searchResultsUpdater = self
searchController.dimsBackgroundDuringPresentation=false
definesPresentationContext=true
self.tableView.tableHeaderView = searchController.searchBar
// Do any additional setup after loading the view, typically from a nib.
tableView.reloadData()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
//
// override func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
//
// return sections[section]
//
// }
//
// override func numberOfSections(in tableView: UITableView) -> Int {
// // #warning Incomplete implementation, return the number of sections
//
// return sections.count
//
// }
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if searchController.isActive && !searchController.searchBar.isEqual("") {
return self.filteredArray.count
}
else{
return tableDataSource.count
}
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
//here cells is the identifier name of prototype cell
let cell = self.tableView.dequeueReusableCell(withIdentifier: "cells", for: indexPath)
if searchController.isActive && !searchController.searchBar.isEqual(""){
cell.textLabel?.text = filteredArray[indexPath.row].name
//cell.imageView?.image = filteredImage[indexPath.row]
// print("filteredimage")
// print(filteredImage)
// print(indexPath.row)
cell.imageView?.sd_setImage(with: URL(string: filteredArray[indexPath.row].image), placeholderImage: UIImage(named: "PA"))
}
else{
cell.textLabel?.text = self.TableData[indexPath.row]
//cell.imageView?.image = self.TableImage[indexPath.row]
cell.imageView?.sd_setImage(with: URL(string: tableDataSource[indexPath.row].image), placeholderImage: UIImage(named: "PA"))
//cell.= appoid[indexPath.row]
}
return cell
}
func filterContentForSearch(searchString:String){
self.filteredArray=self.tableDataSource.filter(){nil != [=10=].name.range(of:searchString)}
self.tableView.reloadData()
}
func updateSearchResults(for searchController: UISearchController) {
self.filterContentForSearch(searchString: searchController.searchBar.text!)
}
func getData() {
var request = URLRequest(url: URL(string: "*********")!)
//request.httpMethod = "POST"
//let postString = "date="+x
//request.httpBody = postString.data(using: .utf8)
//print(request.httpBody)
let task = URLSession.shared.dataTask(with: request) { data, response, error in
guard let data = data, error == nil else { // check for fundamental networking error
print("error=\(error)")
return
}
if let httpStatus = response as? HTTPURLResponse, httpStatus.statusCode != 200 { // check for http errors
print("statusCode should be 200, but is \(httpStatus.statusCode)")
print("response = \(response)")
}
let responseString = String(data: data, encoding: .utf8)
print("responseString = \(responseString)")
do{
let json = try JSONSerialization.jsonObject(with: data, options:.allowFragments) as! [String:AnyObject]
if let stations = json["result"] as? [[String: AnyObject]] {
for station in stations {
let name = station["patient_name"] as! String
//self.login = login_value
let profile_pic = station["image"] as! String
let status = station["status"] as! String
let appo_id = station["id"] as! String
// let appo_id = station["appointment_id"] as! String
//let status = station["status"] as! String
//let appo_time = station["appointment_time"] as! String
//let appo_duration = station["time_duration"] as! String
//let reason = station["reason"] as! String
print(name,status)
let tableData = TableObject(name: name, image: profile_pic, appoId: appo_id)
self.tableDataSource.append(tableData)
}
//print(self.items)
//self.do_table_refresh();
self.tableView.reloadData()
}
}catch {
print("Error with Json: \(error)")
}
}
task.resume()
}
}
关注这些
不要创建单独的数组：
let arrData = [Any]() // these combined array
获取数据时更改
if let stations = json["result"] as? [[String: AnyObject]] {
for station in stations {
arrData.append(station)
}
TableViewDatasource 的变化
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if searchController.isActive && !searchController.searchBar.isEqual("") {
return self.filteredArray.count
}
else{
return arrData.count
}
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
//here cells is the identifier name of prototype cell
let cell = self.tableView.dequeueReusableCell(withIdentifier: "cells", for: indexPath)
if searchController.isActive && !searchController.searchBar.isEqual(""){
let dictObjects = filteredArray[indexPath.row] as [String: AnyObject]
cell.textLabel?.text = dictObjects["name"]
cell.imageView?.sd_setImage(with: URL(string: dictObjects["image"]), placeholderImage: UIImage(named: "PA"))
}
else{
let dictObjects = arrData[indexPath.row] as [String: AnyObject]
cell.textLabel?.text = dictObjects["name"]
cell.imageView?.sd_setImage(with: URL(string: dictObjects["image"]), placeholderImage: UIImage(named: "PA"))
//cell.= appoid[indexPath.row]
}
return cell
}
使用这个过滤器
let namePredicate = NSPredicate(format: "name like %@","yourstring");
filteredArray = arrData.filter { namePredicate.evaluate(with: [=13=]) };
print("names = ,\(filteredArray)");
在这里，我试图在搜索 starts.The 搜索名称时显示过滤后的数据结果，但我不明白如何通过搜索获取图像 display.I 认为错误出现在搜索的过滤器内容中 我是 iOS 的新手，如有任何帮助，我们将不胜感激
import UIKit
import Foundation
import SDWebImage
class TableViewController: UITableViewController,UISearchBarDelegate,UISearchResultsUpdating {
//var sections = ["recent","old"]
var TableData:Array<String> = Array <String>()
//var TableDataRecent:Array<String> = Array <String>()
var TableImage:Array<String> = Array <String>()
var appoid:Array<String> = Array <String>()
var filteredArray:[String]=[]
var filteredImage:[String]=[]
let searchController = UISearchController(searchResultsController:nil)
override func viewDidLoad() {
super.viewDidLoad()
getData()
self.tableView.register(UITableViewCell.self, forCellReuseIdentifier: "cells")
searchController.searchResultsUpdater = self
searchController.dimsBackgroundDuringPresentation=false
definesPresentationContext=true
self.tableView.tableHeaderView = searchController.searchBar
// Do any additional setup after loading the view, typically from a nib.
tableView.reloadData()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
//
// override func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
//
// return sections[section]
//
// }
//
// override func numberOfSections(in tableView: UITableView) -> Int {
// // #warning Incomplete implementation, return the number of sections
//
// return sections.count
//
// }
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if searchController.isActive && !searchController.searchBar.isEqual("") {
return self.filteredArray.count
}
else{
return TableData.count
}
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
//here cells is the identifier name of prototype cell
let cell = self.tableView.dequeueReusableCell(withIdentifier: "cells", for: indexPath)
if searchController.isActive && !searchController.searchBar.isEqual(""){
cell.textLabel?.text = filteredArray[indexPath.row]
//cell.imageView?.image = filteredImage[indexPath.row]
// print("filteredimage")
// print(filteredImage)
// print(indexPath.row)
cell.imageView?.sd_setImage(with: URL(string: TableImage[indexPath.row]), placeholderImage: UIImage(named: "PA"))
print(TableData[indexPath.row])
print(appoid[indexPath.row])
}
else{
cell.textLabel?.text = self.TableData[indexPath.row]
//cell.imageView?.image = self.TableImage[indexPath.row]
cell.imageView?.sd_setImage(with: URL(string: TableImage[indexPath.row]), placeholderImage: UIImage(named: "PA"))
//cell.= appoid[indexPath.row]
}
return cell
}
func filterContentForSearch(searchString:String){
self.filteredArray=self.TableData.filter(){nil != [=11=].range(of:searchString)}
self.filteredImage=self.TableImage.filter(){nil != [=11=].range(of:searchString)}
self.tableView.reloadData()
}
func updateSearchResults(for searchController: UISearchController) {
self.filterContentForSearch(searchString: searchController.searchBar.text!)
}
func getData() {
var request = URLRequest(url: URL(string: "*********")!)
//request.httpMethod = "POST"
//let postString = "date="+x
//request.httpBody = postString.data(using: .utf8)
//print(request.httpBody)
let task = URLSession.shared.dataTask(with: request) { data, response, error in
guard let data = data, error == nil else { // check for fundamental networking error
print("error=\(error)")
return
}
if let httpStatus = response as? HTTPURLResponse, httpStatus.statusCode != 200 { // check for http errors
print("statusCode should be 200, but is \(httpStatus.statusCode)")
print("response = \(response)")
}
let responseString = String(data: data, encoding: .utf8)
print("responseString = \(responseString)")
do{
let json = try JSONSerialization.jsonObject(with: data, options:.allowFragments) as! [String:AnyObject]
if let stations = json["result"] as? [[String: AnyObject]] {
for station in stations {
let name = station["patient_name"] as! String
//self.login = login_value
let profile_pic = station["image"] as! String
let status = station["status"] as! String
let appo_id = station["id"] as! String
// let appo_id = station["appointment_id"] as! String
//let status = station["status"] as! String
//let appo_time = station["appointment_time"] as! String
//let appo_duration = station["time_duration"] as! String
//let reason = station["reason"] as! String
print(name,status)
self.TableData.append(name)
self.TableImage.append(profile_pic)
self.appoid.append(appo_id)
}
print(self.TableData)
print(self.TableImage)
//print(self.items)
//self.do_table_refresh();
self.tableView.reloadData()
}
}catch {
print("Error with Json: \(error)")
}
}
task.resume()
}
}
不要为图像、数据和 appoid 保留单独的数组。创建结构对象并对结构对象进行搜索。 试试这个，
import UIKit
import Foundation
import SDWebImage
struct TableObject {
var name: String = ""
var image: String = ""
var appoId: String = ""
}
class TableViewController: UITableViewController,UISearchBarDelegate,UISearchResultsUpdating {
//var sections = ["recent","old"]
var tableDataSource: [TableObject] = []
var filteredArray: [TableObject] = []
let searchController = UISearchController(searchResultsController:nil)
override func viewDidLoad() {
super.viewDidLoad()
getData()
self.tableView.register(UITableViewCell.self, forCellReuseIdentifier: "cells")
searchController.searchResultsUpdater = self
searchController.dimsBackgroundDuringPresentation=false
definesPresentationContext=true
self.tableView.tableHeaderView = searchController.searchBar
// Do any additional setup after loading the view, typically from a nib.
tableView.reloadData()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
//
// override func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
//
// return sections[section]
//
// }
//
// override func numberOfSections(in tableView: UITableView) -> Int {
// // #warning Incomplete implementation, return the number of sections
//
// return sections.count
//
// }
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if searchController.isActive && !searchController.searchBar.isEqual("") {
return self.filteredArray.count
}
else{
return tableDataSource.count
}
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
//here cells is the identifier name of prototype cell
let cell = self.tableView.dequeueReusableCell(withIdentifier: "cells", for: indexPath)
if searchController.isActive && !searchController.searchBar.isEqual(""){
cell.textLabel?.text = filteredArray[indexPath.row].name
//cell.imageView?.image = filteredImage[indexPath.row]
// print("filteredimage")
// print(filteredImage)
// print(indexPath.row)
cell.imageView?.sd_setImage(with: URL(string: filteredArray[indexPath.row].image), placeholderImage: UIImage(named: "PA"))
}
else{
cell.textLabel?.text = self.TableData[indexPath.row]
//cell.imageView?.image = self.TableImage[indexPath.row]
cell.imageView?.sd_setImage(with: URL(string: tableDataSource[indexPath.row].image), placeholderImage: UIImage(named: "PA"))
//cell.= appoid[indexPath.row]
}
return cell
}
func filterContentForSearch(searchString:String){
self.filteredArray=self.tableDataSource.filter(){nil != [=10=].name.range(of:searchString)}
self.tableView.reloadData()
}
func updateSearchResults(for searchController: UISearchController) {
self.filterContentForSearch(searchString: searchController.searchBar.text!)
}
func getData() {
var request = URLRequest(url: URL(string: "*********")!)
//request.httpMethod = "POST"
//let postString = "date="+x
//request.httpBody = postString.data(using: .utf8)
//print(request.httpBody)
let task = URLSession.shared.dataTask(with: request) { data, response, error in
guard let data = data, error == nil else { // check for fundamental networking error
print("error=\(error)")
return
}
if let httpStatus = response as? HTTPURLResponse, httpStatus.statusCode != 200 { // check for http errors
print("statusCode should be 200, but is \(httpStatus.statusCode)")
print("response = \(response)")
}
let responseString = String(data: data, encoding: .utf8)
print("responseString = \(responseString)")
do{
let json = try JSONSerialization.jsonObject(with: data, options:.allowFragments) as! [String:AnyObject]
if let stations = json["result"] as? [[String: AnyObject]] {
for station in stations {
let name = station["patient_name"] as! String
//self.login = login_value
let profile_pic = station["image"] as! String
let status = station["status"] as! String
let appo_id = station["id"] as! String
// let appo_id = station["appointment_id"] as! String
//let status = station["status"] as! String
//let appo_time = station["appointment_time"] as! String
//let appo_duration = station["time_duration"] as! String
//let reason = station["reason"] as! String
print(name,status)
let tableData = TableObject(name: name, image: profile_pic, appoId: appo_id)
self.tableDataSource.append(tableData)
}
//print(self.items)
//self.do_table_refresh();
self.tableView.reloadData()
}
}catch {
print("Error with Json: \(error)")
}
}
task.resume()
}
}
关注这些
不要创建单独的数组：
let arrData = [Any]() // these combined array
获取数据时更改
if let stations = json["result"] as? [[String: AnyObject]] {
for station in stations {
arrData.append(station)
}
TableViewDatasource 的变化
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
if searchController.isActive && !searchController.searchBar.isEqual("") {
return self.filteredArray.count
}
else{
return arrData.count
}
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
//here cells is the identifier name of prototype cell
let cell = self.tableView.dequeueReusableCell(withIdentifier: "cells", for: indexPath)
if searchController.isActive && !searchController.searchBar.isEqual(""){
let dictObjects = filteredArray[indexPath.row] as [String: AnyObject]
cell.textLabel?.text = dictObjects["name"]
cell.imageView?.sd_setImage(with: URL(string: dictObjects["image"]), placeholderImage: UIImage(named: "PA"))
}
else{
let dictObjects = arrData[indexPath.row] as [String: AnyObject]
cell.textLabel?.text = dictObjects["name"]
cell.imageView?.sd_setImage(with: URL(string: dictObjects["image"]), placeholderImage: UIImage(named: "PA"))
//cell.= appoid[indexPath.row]
}
return cell
}
使用这个过滤器
let namePredicate = NSPredicate(format: "name like %@","yourstring");
filteredArray = arrData.filter { namePredicate.evaluate(with: [=13=]) };
print("names = ,\(filteredArray)");