[英]Swift: NSURL Session not working with watchOS
我正在使用NSURL会话来获取特定网站的HTML代码。 以下代码在iOS上运行正常(在ViewController.swift中),但在watchOS(在InterfaceController.swift中)始终失败。 代码始终打印else语句:print(“ apple watch:加载nsurlsession时出错”)。
谁能解释给我(为什么会失败,以及)我该如何改变呢? 感谢您的每一个回应!
(我在iOS 11和watchOS 4.0上使用了swift 4.0-已在模拟器中以及与配对的Apple Watch系列2在iPhone 7上进行测试)
码:
func authorizeBase() {
let loginString = NSString(format: "%@:%@", username, password)
let loginData: NSData = loginString.data(using: String.Encoding.utf8.rawValue)! as NSData
let base64LoginString = loginData.base64EncodedString(options: [])
let url: NSURL = NSURL(string: urlPath)!
let request: NSMutableURLRequest = NSMutableURLRequest(url: url as URL)
request.setValue("Basic \(base64LoginString)", forHTTPHeaderField: "Authorization")
request.httpMethod = "GET"
let config = URLSessionConfiguration.default
config.requestCachePolicy = .reloadIgnoringLocalCacheData //deactivate cache
config.urlCache = nil
let authString = "Basic \(base64LoginString)"
config.httpAdditionalHeaders = ["Authorization" : authString]
let session = URLSession(configuration: config)
session.dataTask(with: url as URL) {
( data, response, error) in
if (response as? HTTPURLResponse) != nil {
_ = NSString(data: data!, encoding: String.Encoding.utf8.rawValue)
let contents = String(data: data!, encoding: .ascii)
print("apple watch: Content:", contents!)
self.parseHTMLOverview(content: contents!)
self.updateTable() //!!!
}
else {
print("apple watch: error with loading nsurlsession")
}
}.resume()
}
非常感谢您的提示Srstka!
经过数小时的思考,我终于明白了。 我只是忘记在WatchKit扩展的Info.plist中添加“允许任意加载”。
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