Objective c 在Swift 2中创建AFHTTPSessionManager子类的正确方法
我已经在objective-c中编写了AFHTTPSessionManager并将其子类化,因此它看起来是这样的:Objective c 在Swift 2中创建AFHTTPSessionManager子类的正确方法,objective-c,swift,afnetworking,Objective C,Swift,Afnetworking,我已经在objective-c中编写了AFHTTPSessionManager并将其子类化,因此它看起来是这样的: + (APIClient *)sharedAPIClient { static APIClient *_sharedAPIClient = nil; static dispatch_once_t onceToken; dispatch_once(&onceToken, ^{ _sharedAPIClient = [[self all
+ (APIClient *)sharedAPIClient
{
static APIClient *_sharedAPIClient = nil;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
_sharedAPIClient = [[self alloc] initWithBaseURL:[NSURL URLWithString:BaseURL]];
});
return _sharedAPIClient;
}
- (instancetype)initWithBaseURL:(NSURL *)url
{
self = [super initWithBaseURL:url];
if (self) {
self.responseSerializer = [AFJSONResponseSerializer serializer];
self.requestSerializer = [AFJSONRequestSerializer serializer];
}
return self;
}
我可以通过以下方式获得该类的实例:
var objAPIClient = APIClient()
objAPIClient = APIClient.sharedAPIClient()
我已经查看了有关堆栈溢出的以下资源:
通过实现以下代码:
let _sharedAPIManager = APIManager(baseURL: NSURL(string: API_URL)!)
class APIManager: AFHTTPSessionManager {
/**
* Singleton service
* (https://github.com/hpique/SwiftSingleton)
*/
class var sharedInstance : APIManager {
return _sharedAPIManager
}
init(baseURL url: NSURL!) {
super.init(baseURL: url, sessionConfiguration: nil)
self.responseSerializer = AFJSONResponseSerializer() as AFJSONResponseSerializer
self.requestSerializer = AFJSONRequestSerializer() as AFJSONRequestSerializer
self.requestSerializer.setValue(API_KEY, forHTTPHeaderField: "X-Api-Key")
self.requestSerializer.setValue("3", forHTTPHeaderField: "X-Api-Version")
}
// this was inserted by XCode
required init(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
}
它是否返回一个实际的单例,因为init应该是私有的?如何生成此代码的实例<代码>var x=APIManager.sharedInstance
将_sharedapimager移出类是错误的吗?这段代码是否完全像我的objective-c版本一样工作,而且在我的objective-c实现中它只运行一个 您可以将
\u sharedAPIManager
移动到APIManager
内部,并将其重命名为sharedInstance
。然后可以将初始值设定项声明为私有:
class APIManager: AFHTTPSessionManager {
static let sharedInstance = APIManager(baseURL: NSURL(string: API_URL)!)
private init(baseURL url: NSURL!) {
您可以通过
apimager.sharedInstance
访问singleton实例,那么如何获取实例<代码>变量x=apimager.sharedInstance?那么我可以删除这个吗class var sharedInstance:APIManager{return\u sharedAPIManager}
是,删除原始的sharedInstance
。访问将是相同的:apimager.sharedInstance