当前，我正在将自定义类SAFavoriteBtn应用于UIButton。
我编写了在该类中按下按钮时获取API的代码，我为向UIViewController的变量分配了获取API数据的参数，我想在SAFavoriteBtn中使用该变量。在这种情况下，应如何传递值？
而这种模式正在使用segue？
UIViewController
class StoreViewController: UIViewController,UICollectionViewDataSource,UICollectionViewDelegate, UICollectionViewDelegateFlowLayout,UITableViewDelegate, UITableViewDataSource {
var store_id = ""
var instaId = ""
var store = [Store]()
var photoPath = [Store.photos]()
var tag = [Store.tags]()
var selectedImage : UIImage?
let defaultValues = UserDefaults.standard
@IBOutlet weak var imageCollectionView: UICollectionView!
@IBOutlet weak var mainImage: UIImageView!
@IBOutlet weak var nameLabel: UILabel!
@IBOutlet weak var locationLabel: UILabel!
@IBOutlet weak var UIView: UIView!
@IBOutlet weak var tagCollectionView: UICollectionView!
@IBOutlet weak var tableView: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
//Collectiopn DetaSources
imageCollectionView.dataSource = self
imageCollectionView.delegate = self
tagCollectionView.dataSource = self
tagCollectionView.delegate = self
tableView.dataSource = self
tableView.delegate = self
//Navigation Color
self.navigationController!.navigationBar.setBackgroundImage(UIImage(), for: .default)
self.navigationController!.navigationBar.shadowImage = UIImage()
navigationController!.navigationBar.topItem!.title = ""
navigationController!.navigationBar.tintColor = UIColor.white
//UIView Shadow
let shadowPath = UIBezierPath(rect: UIView.bounds)
UIView.layer.masksToBounds = false
UIView.layer.shadowColor = UIColor.black.cgColor
UIView.layer.shadowOffset = .zero
UIView.layer.shadowOpacity = 0.2
UIView.layer.shadowPath = shadowPath.cgPath
//Request API
let url = URL(string: "http://example.com/store/api?store_id=" + store_id)
let request = URLRequest(url: url!)
let session = URLSession.shared
let encoder: JSONEncoder = JSONEncoder()
encoder.dateEncodingStrategy = .iso8601
encoder.outputFormatting = .prettyPrinted
session.dataTask(with: request){(data, response, error)in if error == nil,
let data = data,
let response = response as? HTTPURLResponse{
let decoder: JSONDecoder = JSONDecoder()
decoder.dateDecodingStrategy = .iso8601
do {
let json = try decoder.decode(Store.self, from: data)
self.store = [json]
self.photoPath = json.photos
self.tag = json.tags
if let imageURL = URL(string: "http://example.com/photos/" + json.photos[0].path){
DispatchQueue.global().async {
let data = try? Data(contentsOf: imageURL)
if let data = data {
let image = UIImage(data: data)
DispatchQueue.main.async {
self.mainImage.image = image
}
}
}
}else if let imageURL = URL(string: "http://example.com/photos/" + json.photos[0].path.addingPercentEncoding(withAllowedCharacters: CharacterSet.urlQueryAllowed)!){
DispatchQueue.global().async {
let data = try? Data(contentsOf: imageURL)
if let data = data {
let image = UIImage(data: data)
DispatchQueue.main.async {
self.mainImage.image = image
}
}
}
}
DispatchQueue.main.async {
self.nameLabel.text = json.name
self.locationLabel.text = json.location
self.tableView.reloadData()
self.imageCollectionView.reloadData()
self.tagCollectionView.reloadData()
}
} catch {
print("error:", error.localizedDescription)
}
}
}.resume()
print(store)
//print(defaultValues.string(forKey: "id"))
// Image Collection view Layout
let itemSize = UIScreen.main.bounds.width/3.62 - 3.62
let layout = UICollectionViewFlowLayout()
layout.sectionInset = UIEdgeInsetsMake(0, 0, 0, 0)
layout.itemSize = CGSize(width: itemSize, height: itemSize)
layout.minimumInteritemSpacing = 1
layout.minimumLineSpacing = 1
imageCollectionView.collectionViewLayout = layout
// Tag Collection View
let tagLayout = UICollectionViewFlowLayout()
tagLayout.minimumLineSpacing = 1
tagLayout.minimumInteritemSpacing = 1
tagLayout.sectionInset = UIEdgeInsetsMake(0, 0, 0, 0)
tagLayout.itemSize = CGSize(width: 80, height: 24)
tagCollectionView.collectionViewLayout = tagLayout
//status bar color
self.setNeedsStatusBarAppearanceUpdate()
}
override var prefersStatusBarHidden: Bool {
return false
}
override var preferredStatusBarStyle: UIStatusBarStyle {
return UIStatusBarStyle.lightContent
}
override func viewDidAppear(_ animated: Bool) {
super.viewDidAppear(animated)
// UI coner redius
let uiViewPath = UIBezierPath(roundedRect: UIView.bounds, byRoundingCorners: [.topLeft, .topRight], cornerRadii: CGSize(width: 8, height: 8))
let uiViewMask = CAShapeLayer()
uiViewMask.path = uiViewPath.cgPath
UIView.layer.mask = uiViewMask
navigationController!.navigationBar.topItem!.title = " "
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
//Collection
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
if collectionView == self.imageCollectionView{
let imageCell:UICollectionViewCell = collectionView.dequeueReusableCell(withReuseIdentifier: "Cell",for: indexPath)
let imageView = imageCell.contentView.viewWithTag(1) as! UIImageView
let textLabel = imageCell.contentView.viewWithTag(2) as! UILabel
let instaBtn = imageCell.contentView.viewWithTag(3) as! UIButton
instaBtn.tag = indexPath.row
if photoPath.count > indexPath.row{
if collectionView == self.imageCollectionView{
let url : String = "http://example.com/photos/" + photoPath[indexPath.row].path
let imageURL = URL(string: url)
print(url)
if imageURL != nil {
DispatchQueue.global().async {
let data = try? Data(contentsOf: imageURL!)
if let data = data {
let image = UIImage(data: data)
DispatchQueue.main.async {
imageCell.layer.masksToBounds = true;
imageCell.layer.cornerRadius = 3
imageView.image = image
textLabel.text = self.photoPath[indexPath.row].username
print(self.photoPath[indexPath.row].username)
}
}
}
}else{
let encodeURL : String = "http://example.com/photos/" + photoPath[indexPath.row].path
let url = URL(string: encodeURL.addingPercentEncoding(withAllowedCharacters: CharacterSet.urlQueryAllowed)!)
DispatchQueue.global().async {
let data = try? Data(contentsOf: url!)
if let data = data {
let image = UIImage(data: data)
DispatchQueue.main.async {
imageCell.layer.masksToBounds = true;
imageCell.layer.cornerRadius = 3
imageView.image = image
textLabel.text = self.photoPath[indexPath.row].username
print(self.photoPath[indexPath.row].username)
}
}
}
}
}
}
instaBtn.addTarget(self, action: #selector(self.instaBtnTapped), for: UIControlEvents.touchUpInside)
imageCell.addSubview(instaBtn)
return imageCell
//Tag collection view
}else if collectionView == self.tagCollectionView{
let tagCell:UICollectionViewCell = collectionView.dequeueReusableCell(withReuseIdentifier: "TagCell",for: indexPath)
let tagLabel = tagCell.contentView.viewWithTag(2) as! UILabel
if tag.count > indexPath.row{
tagLabel.text = tag[indexPath.row].name
}
tagCell.layer.cornerRadius = 12
return tagCell
}else{
return UICollectionViewCell()
}
}
//tapped instaBtn jump insta user page function
@objc func instaBtnTapped(sender: UIButton){
instaId = photoPath[sender.tag].username
let url = URL(string: "https://www.instagram.com/"+instaId+"/")
UIApplication.shared.open(url!, options: [ : ], completionHandler: nil)
print (sender.tag)
}
func numberOfSections(in collectionView: UICollectionView) -> Int {
return 1
}
func collectionView(_ collectionView: UICollectionView,
numberOfItemsInSection section: Int) -> Int {
return photoPath.count > 0 ? 3 : 0
}
func tagcollectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return tag.count > 0 ? tag.count : 0
}
func numberOfSections(in tableView: UITableView) -> Int {
return 3
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
switch section {
case 0:
return store.count > 0 ? 1 : 0
case 1 :
return store.count > 0 ? 1 : 0
case 2 :
return store.count > 0 ? 1 : 0
default:
return 0
}
}
//Collection view tap
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
if collectionView == self.imageCollectionView{
let url : String = "http://example.com/photos/" + photoPath[indexPath.row].path
let imageURL = URL(string: url)
print(url)
if imageURL != nil {
DispatchQueue.global().async {
let data = try? Data(contentsOf: imageURL!)
if let data = data {
let image = UIImage(data: data)
DispatchQueue.main.async {
self.mainImage.image = image
}
}
}
}else{
let encodeURL : String = "http://example.com/photos/" + photoPath[indexPath.row].path
let url = URL(string: encodeURL.addingPercentEncoding(withAllowedCharacters: CharacterSet.urlQueryAllowed)!)
DispatchQueue.global().async {
let data = try? Data(contentsOf: url!)
if let data = data {
let image = UIImage(data: data)
DispatchQueue.main.async {
self.mainImage.image = image
}
}
}
}
}
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = UITableViewCell()
switch indexPath.section {
case 0 :
//Price Cell
guard let priceCell = tableView.dequeueReusableCell(withIdentifier: "priceCell", for: indexPath) as? priceTableViewCell else { return UITableViewCell()}
if let price:String = store[indexPath.row].price{
priceCell.priceLabel.text! = price
}else{
priceCell.priceLabel.text! = "-"
}
return priceCell
case 1 :
//timeCell
guard let timeCell = tableView.dequeueReusableCell(withIdentifier: "timeCell", for: indexPath) as? timeTableViewCell else{return UITableViewCell()}
if let time:String = store[indexPath.row].open_time{
timeCell.timeLabel.text! = time
}else{
timeCell.timeLabel.text! = "-"
}
return timeCell
case 2 :
//closedayCell
guard let closedayCell = tableView.dequeueReusableCell(withIdentifier: "closedayCell", for: indexPath) as? closedayTableViewCell else { return UITableViewCell() }
if let closeday:String = store[indexPath.row].closed_day{
closedayCell.closedayLabel.text! = closeday
}else{
closedayCell.closedayLabel.text! = "-"
}
return closedayCell
default :
print("Default Selected")
}
return cell
}
@IBAction func moreImageBtn(_ sender: Any) {
let store_id = self.store_id
self.performSegue(withIdentifier: "toStorePhotoViewController", sender: store_id)
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if segue.identifier == "toStorePhotoViewController"{
let storePhotoViewController = segue.destination as! StorePhotoViewController
storePhotoViewController.store_id = sender as! String
}
}
//This is SAFavoriteBtn
//Bookmark Button
@IBAction func bookmarkBtn(_ sender: SAFavoriteBtn) {
}
@IBAction func locationBtn(_ sender: Any) {
let lat = store[0].lat
let lng = store[0].lng
if UIApplication.shared.canOpenURL(URL(string:"comgooglemaps://")!){
let urlStr : String = "comgooglemaps://?daddr=\(lat),\(lng)&directionsmode=walking&zoom=14"
UIApplication.shared.open(URL(string:urlStr)!,options: [:], completionHandler: nil)
}else{
let daddr = String(format: "%f,%f", lat, lng)
let urlString = "http://maps.apple.com/?daddr=\(daddr)&dirflg=w"
let encodeUrl = urlString.addingPercentEncoding(withAllowedCharacters:NSCharacterSet.urlQueryAllowed)!
let url = URL(string: encodeUrl)!
UIApplication.shared.open(url,options: [:], completionHandler: nil)
}
}
}
SAFavoriteBtn
import UIKit
class SAFavoriteBtn: UIButton {
var isOn = false
let defaultValues = UserDefaults.standard
//Want to use the variable of UIViewController with UIButton custom class in this part
var storeId = ""
override init(frame: CGRect) {
super.init(frame:frame)
initButton()
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
initButton()
}
func initButton() {
setImage(UIImage(named:"bookmark.png"), for: UIControlState.normal)
addTarget(self, action: #selector(SAFavoriteBtn.buttonPressed), for: .touchUpInside)
}
@objc func buttonPressed() {
activateBtn(bool: !isOn)
}
func activateBtn(bool : Bool){
isOn = bool
//UI
let image = bool ? "bookmark_after.png" : "bookmark.png"
setImage(UIImage(named: image), for: UIControlState.normal)
//API
bool ? favorite() : deleteFavorite()
}
func favorite(){
let user_id = defaultValues.string(forKey: "userId")
let url = URL(string: "http://example.com/api/store/favorite?")
var request = URLRequest(url: url!)
request.httpMethod = "POST"
let postParameters = "user_id=" + user_id! + "&store_id=" + storeId
request.httpBody = postParameters.data(using: .utf8)
let session = URLSession.shared
session.dataTask(with: request) { (data, response, error) in
if error == nil, let data = data, let response = response as? HTTPURLResponse {
print("Content-Type: \(response.allHeaderFields["Content-Type"] ?? "")")
print("statusCode: \(response.statusCode)")
print(String(data: data, encoding: .utf8) ?? "")
}
}.resume()
print("favorite")
}
func deleteFavorite(){
let user_id = defaultValues.string(forKey: "userId")
let url = URL(string: "http://example.com/api/store/favorite?")
var request = URLRequest(url: url!)
request.httpMethod = "POST"
let postParameters = "user_id=" + user_id! + "&store_id=" + storeId
request.httpBody = postParameters.data(using: .utf8)
let session = URLSession.shared
session.dataTask(with: request) { (data, response, error) in
if error == nil, let data = data, let response = response as? HTTPURLResponse {
print("Content-Type: \(response.allHeaderFields["Content-Type"] ?? "")")
print("statusCode: \(response.statusCode)")
print(String(data: data, encoding: .utf8) ?? "")
}
}.resume()
print("delete")
}
}