我正在尝试清除我的应用程序中的内存泄漏问题，但有几个问题我不太理解：
为什么在我启动应用程序后30秒会调用 Alamofire 函数
Request.serializeResponseJSON：我没有触摸任何东西或导航到任何地方，屏幕保持静态。为什么会出现内存泄漏？
为什么我的代码存在内存泄漏问题？
当屏幕加载时，我也会遇到相同的内存泄漏问题。
我已经尝试过以下方法：
自动释放池；
以所有可能的方式向数组添加和初始化；
将所有变量（类、函数）更改为可选/非可选/弱引用；
在
UIViewController中初始化类；在主线程中初始化类；
在互联网上搜索这些问题。
使用 Xcode 内存工具，我发现它与
_ContiguousArrayStorage有关，但我不理解它是什么以及它的实际作用。
我已经没有任何想法了，希望能得到一些提示。
以下是所有相关代码：我的通用 API 请求：
public func requestWithLocation(_ httpmethod: Alamofire.HTTPMethod, URL: String, parameters: [String: AnyObject]?, completionHandler: @escaping CompletionHandler) -> (){
var header: HTTPHeaders = [:]
var location: [String: Double] = [:]
let locationManager = CLLocationManager()
if (CLLocationManager.authorizationStatus() == .authorizedWhenInUse
|| CLLocationManager.authorizationStatus() == .authorizedAlways) && locationManager.location != nil {
location = [
"lon" : locationManager.location!.coordinate.longitude,
"lat" : locationManager.location!.coordinate.latitude
]
}
if User.sharedInstance.token != "" {
header["Authorization"] = User.sharedInstance.token
}
var parametersWithLocation = parameters ?? [:]
parametersWithLocation["location"] = location as AnyObject
Alamofire.request("\(serverAddress)/\(URL)", method: httpmethod, parameters: parametersWithLocation, encoding: JSONEncoding.default, headers: header).validate().responseJSON { response in
var data: JSON?
if response.result.value != nil {
data = JSON(response.result.value!)
}
if User.sharedInstance.token == "" {
User.sharedInstance.token = response.response?.allHeaderFields["Authorization"] as! String
} else {
if let header = response.response?.allHeaderFields["Authorization"] as? String {
if User.sharedInstance.token != header {
User.sharedInstance.token = header
}
}
}
completionHandler(data, response.result.error as NSError?)
}
}
我的屏幕请求
class func requestMainScreen(handler: @escaping ([ShortRestaurant], [ShortRestaurant], [ShortRestaurant]) -> ()) {
var dataForBestChoise: [ShortRestaurant] = []
var dataForTop: [ShortRestaurant] = []
var dataForNearest: [ShortRestaurant] = []
let group = DispatchGroup()
group.enter()
APIModel.sharedInstance.requestWithLocation(.post, URL: "restaurants/near", parameters: nil, completionHandler: {(data, error) in
guard let `data` = data else {
group.leave()
return
}
for JSON in data["restaurants"].arrayValue {
dataForNearest.append(ShortRestaurant.initFromJSON(JSON)) //here is leak
}
group.leave()
})
group.enter()
APIModel.sharedInstance.requestWithLocation(.post, URL: "restaurants/top", parameters: nil, completionHandler: {(data, error) in
guard let `data` = data else {
group.leave()
return
}
for JSON in data["restaurants"].arrayValue {
dataForTop.append(ShortRestaurant.initFromJSON(JSON))//here is leak
}
group.leave()
})
group.enter()
APIModel.sharedInstance.requestWithLocation(.post, URL: "restaurants/personal", parameters: nil, completionHandler: {(data, error) in
guard let `data` = data else {
group.leave()
return
}
for JSON in data["restaurants"].arrayValue {
dataForBestChoise.append(ShortRestaurant.initFromJSON(JSON)) //here is leak
}
group.leave()
})
group.notify(queue: DispatchQueue.main) {
handler(dataForBestChoise, dataForTop, dataForNearest)
}
}
我的类（我知道这种初始化方式有点不对，但我已经改成init(data: JSON)了 - 没有帮助：
class func initFromJSON(_ data: JSON) -> ShortRestaurant {
let restaurant = ShortRestaurant()
restaurant.id = data["id"].stringValue
restaurant.name = data["name"].stringValue
restaurant.image = data["img"].stringValue
restaurant.description = data["shortDesc"].stringValue
restaurant.nameOfMetrostatin = data["address"]["metro"]["name"].stringValue
restaurant.mapType = data["mapType"].stringValue
restaurant.address = data["address"]["street"].stringValue
restaurant.longitude = data["address"]["location"][0].doubleValue
restaurant.latitude = data["address"]["location"][1].doubleValue
restaurant.phone = data["phone"].stringValue
restaurant.workTime = data["currentWork"].stringValue
restaurant.avarageBill = data["price"].stringValue
restaurant.peopleInfo = data["croud"].stringValue
restaurant.rating = data["rating"].stringValue
restaurant.ratingTrend = data["trend"].stringValue
restaurant.distance = data["distance"].doubleValue
restaurant.isFavourited = data["isFavourited"].bool ?? false
restaurant.specialOfferDescription = data["discounts"]["name"].string
restaurant.specialOfferName = data["discounts"]["type"].string
restaurant.alertText = data["label"]["name"].string
restaurant.alertIcon = data["label"]["type"].string
restaurant.alertBackground = data["label"]["color"].string
restaurant.avaliableDates = ReservationSchedule.initArrayFrom(data: data["availableDates"])
restaurant.avaliableTimes = data["scheduleRes"].arrayObject as? [String] ?? []
restaurant.doesHaveDiscount = data["discounts"]["id"].string != nil
restaurant.doesHaveEvent = data["events"]["id"].string != nil
restaurant.weeklyTop = data["weeklyTop"].bool ?? false
restaurant.monthlyTop = data["monthlyTop"].bool ?? false
restaurant.yearTop = data["yearTop"].bool ?? false
restaurant.isActive = data["isActive"].bool ?? true
return restaurant
}
这些泄漏的数组：
class ReservationSchedule {
var description: String
var data: String
var dayTitle: String
var fullTitle: String
init(data: JSON) {
self.data = data["value"].stringValue
self.dayTitle = data["day"].stringValue
self.description = data["label"].stringValue
self.fullTitle = data["title"].stringValue
}
class func initArrayFrom(data: JSON) -> [ReservationSchedule] {
var schedule: [ReservationSchedule] = []
for day in data.arrayValue {
schedule.append(ReservationSchedule.init(data: day)) //here is leak
}
return schedule
}
}