Ios 我该如何修复错误：“quot；线程1:EXC_BAD_访问（代码=2，地址=0x7ffee0761ed8）"；
我正在使用swift在Xcode中构建一个应用程序。它构建得很好，但是当它运行时，它停止并在LocationService.swift中的declare my delegate（这一行：“弱var delegate:LocationActions？”）行上给我一个错误。以下是错误： 线程1:EXC_坏访问（代码=2，地址=0x7ffee0761ed8） 我尝试了很多方法，但都没能找到答案。有人能帮我解决这个问题吗？如果可以，非常感谢这是我的代码： 定位服务。swiftIos 我该如何修复错误：“quot；线程1:EXC_BAD_访问（代码=2，地址=0x7ffee0761ed8）"；,ios,swift,swiftui,moya,yelp-fusion-api,Ios,Swift,Swiftui,Moya,Yelp Fusion Api,我正在使用swift在Xcode中构建一个应用程序。它构建得很好，但是当它运行时，它停止并在LocationService.swift中的declare my delegate（这一行：“弱var delegate:LocationActions？”）行上给我一个错误。以下是错误： 线程1:EXC_坏访问（代码=2，地址=0x7ffee0761ed8） 我尝试了很多方法，但都没能找到答案。有人能帮我解决这个问题吗？如果可以，非常感谢这是我的代码： 定位服务。swift import CoreDa
import CoreData
import Moya
import CoreLocation
import Alamofire
protocol LocationActions: class {
func didChangeLocationAuthorizationRD()
}
class LocationService:NSObject, ObservableObject, CLLocationManagerDelegate {
weak var delegate: LocationActions?
var newLocation: ((Result<CLLocation>) -> Void)?
let locationManager: CLLocationManager
lazy var latitude = Double(locationManager.location?.coordinate.latitude ?? 100000.00)
lazy var longitude = Double(locationManager.location?.coordinate.longitude ?? 100000.00)
lazy var tempLatitude = Double(locationManager.location?.coordinate.latitude ?? 100000.00)
let jsonDecoder = JSONDecoder()
var lat = 0.0
var long = 0.0
let dataSource = DataSource()
func requestLocationAuthorization() {
locationManager.requestWhenInUseAuthorization()
}
func getLocation() {
locationManager.requestLocation()
}
var didChangeStatus: ((Bool) -> Void)?
func locationManager(_ manager: CLLocationManager, didChangeAuthorization status: CLAuthorizationStatus) {
switch status {
case .notDetermined, .restricted, .denied:
didChangeStatus?(false)
case .authorizedAlways, .authorizedWhenInUse:
didChangeStatus?(true)
self.delegate?.didChangeLocationAuthorizationRD()
}
}
override init() {
self.locationManager = CLLocationManager()
super.init()
self.locationManager.delegate = self
}
func setup(latOrLong : String) -> Double {
self.locationManager.requestWhenInUseAuthorization()
if CLLocationManager.headingAvailable() {
self.locationManager.startUpdatingLocation()
}
if latOrLong == "lat" {
return self.latitude
}else if latOrLong == "long" {
return self.longitude
} else {
print("error enter either lat or long in the paramaters for the function setup located in LocationServices.swift")
return 3.141592653
}
}
}
import UIKit
import CoreData
import Moya
import Alamofire
import AlamofireImage
import Foundation
import CoreLocation
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate, CLLocationManagerDelegate {
var theViewModels = [RestrauntListViewModel]()
let locationService = LocationService()
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
// Override point for customization after application launch.
let locationServices = LocationService()
let lat = locationServices.setup(latOrLong: "lat")
let long = locationServices.setup(latOrLong: "long")
locationServices.lat = lat
locationServices.long = long
let dataSource = DataSource()
loadBusinesses(lat: lat, long: long)
print("this is the view models in appDelegate: \(theViewModels)")
locationService.didChangeStatus = { [weak self] success in
if success {
self?.locationService.getLocation()
}
}
locationService.newLocation = { [weak self] result in
switch result {
case .success(let location):
self?.loadBusinesses(lat: location.coordinate.latitude, long: location.coordinate.longitude)
case .failure(let error):
assertionFailure("Error getting the users location \(error)")
}
}
locationService.delegate = self
return true
}
func loadBusinesses (lat: Double, long: Double) {
var contentView = ContentView()
let service = MoyaProvider<YelpService.BusinessProvider>()
let jsonDecoder = JSONDecoder()
let restrauntView = RestrauntView()
let appDelegate = AppDelegate()
print("The latitude of u is \(lat) and the long of you is \(long)")
if CLLocationManager.locationServicesEnabled() {
switch CLLocationManager.authorizationStatus() {
case .notDetermined, .restricted, .denied:
print("No access")
contentView.tapToDecideText = "Please allow us to use your location in settings so that we can show you restraunts near by. Once you have let us use your location please restart the application."
case .authorizedAlways, .authorizedWhenInUse:
print("Access")
service.request(.search(lat: lat, long: long)) { (result) in
switch result{
case.success(let response):
print("yaya")
let root = try? jsonDecoder.decode(Root.self, from: response.data)
let viewModels = root?.businesses.compactMap(RestrauntListViewModel.init)
let dataSource = DataSource()
dataSource.arrayOfImages.removeAll()
for image in viewModels! {
Alamofire.request(image.imageURL).responseImage { response in
if let image = response.result.value {
print("image downloadedline 59 appdelegate")
dataSource.arrayOfImages.append(image)
print(dataSource.arrayOfImages)
} else {
print("ERROR: image does not = response.result.value")
}
}
}
self.theViewModels = (root?.businesses.compactMap(RestrauntListViewModel.init))!
print(" restrauntView.theViewModels is here \(restrauntView.theViewModels)")
print("the constant theViewModels in the appdelegate has \(appDelegate.theViewModels.count) values")
case .failure(let error):
print("Error: \(error)")
}
}
@unknown default:
break
}
} else {
print("Location services are not enabled")
}
}
// MARK: UISceneSession Lifecycle
func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration {
// Called when a new scene session is being created.
// Use this method to select a configuration to create the new scene with.
return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role)
}
func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set<UISceneSession>) {
// Called when the user discards a scene session.
// If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions.
// Use this method to release any resources that were specific to the discarded scenes, as they will not return.
}
// MARK: - Core Data stack
lazy var persistentContainer: NSPersistentContainer = {
/*
The persistent container for the application. This implementation
creates and returns a container, having loaded the store for the
application to it. This property is optional since there are legitimate
error conditions that could cause the creation of the store to fail.
*/
let container = NSPersistentContainer(name: "Actrual_Food_Circle")
container.loadPersistentStores(completionHandler: { (storeDescription, error) in
if let error = error as NSError? {
// Replace this implementation with code to handle the error appropriately.
// fatalError() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.
/*
Typical reasons for an error here include:
* The parent directory does not exist, cannot be created, or disallows writing.
* The persistent store is not accessible, due to permissions or data protection when the device is locked.
* The device is out of space.
* The store could not be migrated to the current model version.
Check the error message to determine what the actual problem was.
*/
fatalError("Unresolved error \(error), \(error.userInfo)")
}
})
return container
}()
// MARK: - Core Data Saving support
func saveContext () {
let context = persistentContainer.viewContext
if context.hasChanges {
do {
try context.save()
} catch {
// Replace this implementation with code to handle the error appropriately.
// fatalError() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.
let nserror = error as NSError
fatalError("Unresolved error \(nserror), \(nserror.userInfo)")
}
}
}
}
extension AppDelegate: LocationActions{
func didChangeLocationAuthorizationRD() {
locationService.requestLocationAuthorization()
}
}
导入核心数据
进口莫亚
导入核心定位
进口阿拉莫菲尔
协议位置操作：类{
func didChangeLocationAuthorizationRD（）
}
类LocationService:NSObject、ObservableObject、CLLocationManagerDelegate{
弱var委托：LocationActions？
var newLocation:（（结果）->无效）？
让locationManager:CLLocationManager
延迟变量纬度=双（locationManager.location？坐标纬度？100000.00）
延迟变量经度=双精度（locationManager.location？坐标经度？100000.00）
惰性变量模板度=双精度（locationManager.location？.coordinate.latitude？100000.00）
让jsonDecoder=jsonDecoder（）
var lat=0.0
var long=0.0
让dataSource=dataSource（）
func requestLocationAuthorization（）{
locationManager.RequestWhenUseAuthorization（）
}
func getLocation（）{
locationManager.requestLocation（）
}
var didChangeStatus:（（Bool）->无效）？
func locationManager（\ manager:CLLocationManager，didChangeAuthorization状态：CLAuthorizationStatus）{
开关状态{
案例.未确定、.限制、.拒绝：
didChangeStatus？（假）
案例.authorizedWays、.authorizedWhenUse：
didChangeStatus？（真）
self.delegate？.didChangeLocationAuthorizationRD（）
}
}
重写init（）{
self.locationManager=CLLocationManager（）
super.init（）
self.locationManager.delegate=self
}
func设置（latOrLong:字符串）->Double{
self.locationManager.requestWhenUseAuthorization（）
如果CLLocationManager.headingAvailable（）{
self.locationManager.startUpdatingLocation（）
}
如果latOrLong==“lat”{
返回自纬度
}如果latOrLong==“long”，则为else{
返回自我经度
}否则{
打印（“在LocationServices.swift中的功能设置参数中输入lat或long时出错”）
返回3.141592653
}
}
}
import CoreData
import Moya
import CoreLocation
import Alamofire
protocol LocationActions: class {
func didChangeLocationAuthorizationRD()
}
class LocationService:NSObject, ObservableObject, CLLocationManagerDelegate {
weak var delegate: LocationActions?
var newLocation: ((Result<CLLocation>) -> Void)?
let locationManager: CLLocationManager
lazy var latitude = Double(locationManager.location?.coordinate.latitude ?? 100000.00)
lazy var longitude = Double(locationManager.location?.coordinate.longitude ?? 100000.00)
lazy var tempLatitude = Double(locationManager.location?.coordinate.latitude ?? 100000.00)
let jsonDecoder = JSONDecoder()
var lat = 0.0
var long = 0.0
let dataSource = DataSource()
func requestLocationAuthorization() {
locationManager.requestWhenInUseAuthorization()
}
func getLocation() {
locationManager.requestLocation()
}
var didChangeStatus: ((Bool) -> Void)?
func locationManager(_ manager: CLLocationManager, didChangeAuthorization status: CLAuthorizationStatus) {
switch status {
case .notDetermined, .restricted, .denied:
didChangeStatus?(false)
case .authorizedAlways, .authorizedWhenInUse:
didChangeStatus?(true)
self.delegate?.didChangeLocationAuthorizationRD()
}
}
override init() {
self.locationManager = CLLocationManager()
super.init()
self.locationManager.delegate = self
}
func setup(latOrLong : String) -> Double {
self.locationManager.requestWhenInUseAuthorization()
if CLLocationManager.headingAvailable() {
self.locationManager.startUpdatingLocation()
}
if latOrLong == "lat" {
return self.latitude
}else if latOrLong == "long" {
return self.longitude
} else {
print("error enter either lat or long in the paramaters for the function setup located in LocationServices.swift")
return 3.141592653
}
}
}
import UIKit
import CoreData
import Moya
import Alamofire
import AlamofireImage
import Foundation
import CoreLocation
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate, CLLocationManagerDelegate {
var theViewModels = [RestrauntListViewModel]()
let locationService = LocationService()
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
// Override point for customization after application launch.
let locationServices = LocationService()
let lat = locationServices.setup(latOrLong: "lat")
let long = locationServices.setup(latOrLong: "long")
locationServices.lat = lat
locationServices.long = long
let dataSource = DataSource()
loadBusinesses(lat: lat, long: long)
print("this is the view models in appDelegate: \(theViewModels)")
locationService.didChangeStatus = { [weak self] success in
if success {
self?.locationService.getLocation()
}
}
locationService.newLocation = { [weak self] result in
switch result {
case .success(let location):
self?.loadBusinesses(lat: location.coordinate.latitude, long: location.coordinate.longitude)
case .failure(let error):
assertionFailure("Error getting the users location \(error)")
}
}
locationService.delegate = self
return true
}
func loadBusinesses (lat: Double, long: Double) {
var contentView = ContentView()
let service = MoyaProvider<YelpService.BusinessProvider>()
let jsonDecoder = JSONDecoder()
let restrauntView = RestrauntView()
let appDelegate = AppDelegate()
print("The latitude of u is \(lat) and the long of you is \(long)")
if CLLocationManager.locationServicesEnabled() {
switch CLLocationManager.authorizationStatus() {
case .notDetermined, .restricted, .denied:
print("No access")
contentView.tapToDecideText = "Please allow us to use your location in settings so that we can show you restraunts near by. Once you have let us use your location please restart the application."
case .authorizedAlways, .authorizedWhenInUse:
print("Access")
service.request(.search(lat: lat, long: long)) { (result) in
switch result{
case.success(let response):
print("yaya")
let root = try? jsonDecoder.decode(Root.self, from: response.data)
let viewModels = root?.businesses.compactMap(RestrauntListViewModel.init)
let dataSource = DataSource()
dataSource.arrayOfImages.removeAll()
for image in viewModels! {
Alamofire.request(image.imageURL).responseImage { response in
if let image = response.result.value {
print("image downloadedline 59 appdelegate")
dataSource.arrayOfImages.append(image)
print(dataSource.arrayOfImages)
} else {
print("ERROR: image does not = response.result.value")
}
}
}
self.theViewModels = (root?.businesses.compactMap(RestrauntListViewModel.init))!
print(" restrauntView.theViewModels is here \(restrauntView.theViewModels)")
print("the constant theViewModels in the appdelegate has \(appDelegate.theViewModels.count) values")
case .failure(let error):
print("Error: \(error)")
}
}
@unknown default:
break
}
} else {
print("Location services are not enabled")
}
}
// MARK: UISceneSession Lifecycle
func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration {
// Called when a new scene session is being created.
// Use this method to select a configuration to create the new scene with.
return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role)
}
func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set<UISceneSession>) {
// Called when the user discards a scene session.
// If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions.
// Use this method to release any resources that were specific to the discarded scenes, as they will not return.
}
// MARK: - Core Data stack
lazy var persistentContainer: NSPersistentContainer = {
/*
The persistent container for the application. This implementation
creates and returns a container, having loaded the store for the
application to it. This property is optional since there are legitimate
error conditions that could cause the creation of the store to fail.
*/
let container = NSPersistentContainer(name: "Actrual_Food_Circle")
container.loadPersistentStores(completionHandler: { (storeDescription, error) in
if let error = error as NSError? {
// Replace this implementation with code to handle the error appropriately.
// fatalError() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.
/*
Typical reasons for an error here include:
* The parent directory does not exist, cannot be created, or disallows writing.
* The persistent store is not accessible, due to permissions or data protection when the device is locked.
* The device is out of space.
* The store could not be migrated to the current model version.
Check the error message to determine what the actual problem was.
*/
fatalError("Unresolved error \(error), \(error.userInfo)")
}
})
return container
}()
// MARK: - Core Data Saving support
func saveContext () {
let context = persistentContainer.viewContext
if context.hasChanges {
do {
try context.save()
} catch {
// Replace this implementation with code to handle the error appropriately.
// fatalError() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development.
let nserror = error as NSError
fatalError("Unresolved error \(nserror), \(nserror.userInfo)")
}
}
}
}
extension AppDelegate: LocationActions{
func didChangeLocationAuthorizationRD() {
locationService.requestLocationAuthorization()
}
}
导入UIKit
导入CoreData
进口莫亚
进口阿拉莫菲尔
导入阿拉莫菲图像
进口基金会
导入核心定位
@UIApplicationMain
类AppDelegate:UIResponder、UIApplicationDelegate、CLLocationManagerDelegate{
var theViewModels=[RestrauntListViewModel]（）
设locationService=locationService（）
func应用程序（application:UIApplication，didFinishLaunchingWithOptions launchOptions:[UIApplication.launchOptions键：任意]？）->Bool{
//应用程序启动后自定义的覆盖点。
设locationServices=LocationService（）
设lat=locationServices.setup（latOrLong：“lat”）
let long=locationServices.setup（latOrLong：“long”）
locationServices.lat=lat
locationServices.long=long
让dataSource=dataSource（）
装载业务（纬度：纬度，长：长）
打印（“这是appDelegate:\（视图模型）中的视图模型”）
locationService.didChangeStatus={[弱自我]成功
如果成功{
self？.locationService.getLocation（）
}
}
locationService.newLocation={[weak self]导致
切换结果{
成功案例（出租位置）：
self？loadbusiness（纬度：location.coordinate.lation，长：location.coordinate.longitude）
案例。失败（let错误）：
断言失败（“获取用户位置时出错\（错误）”）
}
}
locationService.delegate=self
返回真值
}
func LoadBusiness（横向：双精度，纵向：双精度）{
var contentView=contentView（）
let service=MoyaProvider（）
让jsonDecoder=jsonDecoder（）
让restrauntView=restrauntView（）
让appDelegate=appDelegate（）
打印（“u的纬度是\（纬度），你们的长度是\（长）”）
如果CLLocationManager.locationServicesEnabled（）{
开关CLLocationManager.authorizationStatus（）{
案例.未确定、.限制、.拒绝：
打印（“无访问权限”）
contentView.tapToDecideText=“请允许我们在设置中使用您的位置，以便我们可以向您显示附近的重新启动。允许我们使用您的位置后，请重新启动应用程序。”
案例.authorizedWays、.authorizedWhenUse：
打印（“访问”）
请求（.search（lat:lat，long:long））{（result）in
切换结果{
成功案例（让我们回答）：
印刷品（“雅雅”）
让root=try？jsonDecoder.decode（root.self，from:response.data）
让viewModels=root？.business.compactMap（RestrauntListViewModel.init）
让dataSource=dataSource（）
dataSource.arrayOfImages.removeAll（）
用于viewModels中的图像{
请求（image.imageURL）.responseImage{中的响应
如果让image=response.result.value{
打印（“图像下载行59 appdelegate”）