如何从 Siri Intent Extension 拨打网络电话？
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【中文标题】如何从 Siri Intent Extension 拨打网络电话？【英文标题】：How to make network calls from Siri Intent Extension? 【发布时间】：2019-10-15 11:52:46 【问题描述】：我正在尝试从我的应用程序中集成 Siri。实际上我的要求是对我的服务器进行一些 UDP 调用，但由于它没有发生，我尝试使用 URLSession 和 URLRequest 进行简单的网络调用。为了进行测试，我尝试访问 google.com 并打印响应，但是从完成处理程序返回的 data 不能转换为 String 并且返回 nil。我需要在Info.plist 文件或其他地方添加额外的东西以使Intent Extension 中的网络调用成功吗？
在官方文档中也没有提到这一点。我使用的代码实际上很简单，但我仍然将其粘贴在下面：
let session = URLSession.shared
let task = session.dataTask(with: URLRequest(url: URL(string: "https://www.google.com/")!), completionHandler: (tcpData, response, error) in
if error != nil
print("tcp error \(error!.localizedDescription)")
if let res = response as? HTTPURLResponse
print(res.statusCode)
if tcpData != nil
print(String(data: tcpData!, encoding: String.Encoding.utf8) ?? "N/A")
)
task.resume()
completion(TurnOnNodeAppIntentResponse.init(code: TurnOnNodeAppIntentResponseCode.success, userActivity: nil))
这里的响应总是nil，尽管statusCode 是200。
【问题讨论】：
【参考方案1】：您的代码没有任何问题。并非所有数据都可以转换为字符串。您可以在this answer 中阅读更多相关信息。只需点击https://www.google.com/ 不会返回字符串。但是，如果您真的想打印来自https://www.google.com/ 的数据字符串，只需使用print(tcpData!.base64EncodedString())，您会得到类似：PCFkb2N0eXBlIGh0bWw+PGh0bWwgaXRlbXNjb3BlPSIiIGl0ZW10eXBlPSJodHRwOi8vc....
将该 URL 切换到像 SpaceX API 这样的开放 API，您将获得一个有效的字符串。
"flight_number": 83,
"mission_name": "Amos-17",
"mission_id": [
],
"launch_year": "2019",
"launch_date_unix": 1565131920,
"launch_date_utc": "2019-08-06T22:52:00.000Z",
"launch_date_local": "2019-08-06T18:52:00-04:00",
"is_tentative": false,
"tentative_max_precision": "hour",
"tbd": false,
"launch_window": 5280,
"rocket":
"rocket_id": "falcon9",
"rocket_name": "Falcon 9",
"rocket_type": "FT",
"first_stage":
"cores": [
"core_serial": "B1047",
"flight": 3,
"block": 5,
"gridfins": false,
"legs": false,
"reused": true,
"land_success": null,
"landing_intent": false,
"landing_type": null,
"landing_vehicle": null
]
,
"second_stage":
"block": 5,
"payloads": [
"payload_id": "Amos-17",
"norad_id": [
],
"reused": false,
"customers": [
"Spacecom"
],
"nationality": "Israel",
"manufacturer": "Boeing Satellite Systems",
"payload_type": "Satellite",
"payload_mass_kg": 6500,
"payload_mass_lbs": 14330.05,
"orbit": "GTO",
"orbit_params":
"reference_system": "geocentric",
"regime": "geostationary",
"longitude": 17,
"semi_major_axis_km": null,
"eccentricity": null,
"periapsis_km": null,
"apoapsis_km": null,
"inclination_deg": null,
"period_min": null,
"lifespan_years": 15,
"epoch": null,
"mean_motion": null,
"raan": null,
"arg_of_pericenter": null,
"mean_anomaly": null
,
"uid": "UerI6qmZTU2Fx2efDFm3QQ=="
]
,
"fairings":
"reused": false,
"recovery_attempt": true,
"recovered": true,
"ship": "GOMSTREE"
,
"ships": [
"GOMSTREE",
"GONAVIGATOR"
],
"telemetry":
"flight_club": null
,
"launch_site":
"site_id": "ccafs_slc_40",
"site_name": "CCAFS SLC 40",
"site_name_long": "Cape Canaveral Air Force Station Space Launch Complex 40"
,
"launch_success": true,
"links":
"mission_patch": "https://images2.imgbox.com/a0/ab/XUoByiuR_o.png",
"mission_patch_small": "https://images2.imgbox.com/f1/4a/WAkSmKfY_o.png",
"reddit_campaign": "https://www.reddit.com/r/spacex/comments/cjaawx/amos17_launch_campaign_thread",
"reddit_launch": "https://www.reddit.com/r/spacex/comments/cmedgn/rspacex_amos17_official_launch_discussion_updates",
"reddit_recovery": null,
"reddit_media": "https://www.reddit.com/r/spacex/comments/cmppne/rspacex_amos17_media_thread_videos_images_gifs",
"presskit": "https://www.spacex.com/sites/spacex/files/amos-17_mission_press_kit_8_6_2019.pdf",
"article_link": "https://spaceflightnow.com/2019/08/07/spacex-launches-israeli-owned-telecom-satellite/",
"wikipedia": "https://en.wikipedia.org/wiki/Spacecom",
"video_link": "https://youtu.be/fZh82-WcCuo",
"youtube_id": "fZh82-WcCuo",
"flickr_images": [
"https://live.staticflickr.com/65535/48478269312_58dd3dc446_o.jpg",
"https://live.staticflickr.com/65535/48478269747_353dcb2e62_o.jpg",
"https://live.staticflickr.com/65535/48478119901_2de0441026_o.jpg",
"https://live.staticflickr.com/65535/48478120646_ab72c2c6c3_o.jpg",
"https://live.staticflickr.com/65535/48478120031_5aae1f6131_o.jpg",
"https://live.staticflickr.com/65535/48478269442_08479bed36_o.jpg"
]
,
"details": "SpaceX will launch Boeing built Amos-17, a geostationary communications satellite for Israeli company Spacecom. The satellite will be delivered to GTO from KSC LC-39A or possibly CCAFS SLC-40, and will replace the defunct Amos-5 at 17° E. Amos-17 carries multi-band high throughput and regional beams servicing Africa, Europe and the Middle East. The cost of this launch is covered for Spacecom by SpaceX credit following the Amos-6 incident. A recovery of the booster for this mission is not expected.",
"upcoming": false,
"static_fire_date_utc": "2019-08-01T00:00:00.000Z",
"static_fire_date_unix": 1564617600,
"timeline": null,
"crew": null
此外，您可能希望停止强制展开，而是使用 if let 或 guard
let session = URLSession.shared
let task = session.dataTask(with: URLRequest(url: URL(string: "https://api.spacexdata.com/v3/launches/latest")!), completionHandler: (tcpData, response, error) in
if let err = error
print("tcp error \(err.localizedDescription)")
if let res = response as? HTTPURLResponse
print(res.statusCode)
if let data = tcpData
print(String(data: data, encoding: String.Encoding.utf8) ?? "N/A")
)
task.resume()
completion(TurnOnNodeAppIntentResponse.init(code: TurnOnNodeAppIntentResponseCode.success, userActivity: nil))
【讨论】：
那么Siri Intent Extension目标不需要做额外的工作吗？从目标的能力来看，没有什么比得上“背景模式”了吗？网络呼叫可以开箱即用地扩展意图吗？ 您的请求已经通过，只是没有返回字符串数据。使用print(tcpData!.base64EncodedString()) 查看数据响应。不过，您可能希望启用后台获取。以上是关于如何从 Siri Intent Extension 拨打网络电话？的主要内容，如果未能解决你的问题，请参考以下文章
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