質問編集履歴
3
内容編集
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@@ -324,6 +324,28 @@
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```
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メソッドの呼び出し
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```ここに言語を入力
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Button(action: {
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appState.getTemperature(date: "2020-11-11")
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}
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) {
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Text("取得")
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}
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346
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```
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実行結果
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```console
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2
追記記入
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test
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@@ -222,9 +222,117 @@
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---
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-
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**追記**
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-
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```swift
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233
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func getTemperature(date: String) -> Double? {
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let semaphore = DispatchSemaphore(value: 0)
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236
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237
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let endpoint: String = "https://sample.com/api/weather_ave_day/?date=(date)"
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let url = URL(string: endpoint)
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var urlRequest = URLRequest(url: url!)
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urlRequest.addValue("token xxxxxxxxxxxxxxxxx", forHTTPHeaderField: "authorization")
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// set up the session
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let config = URLSessionConfiguration.default
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let session = URLSession(configuration: config)
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var temperature: Double = 0.0
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let task = session.dataTask(with: urlRequest) {(data, response, error) in
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guard error == nil else {
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print("error calling GET")
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return
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}
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// make sure we got data
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guard let responseData = data else {
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print("Error: did not receive data")
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return
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280
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}
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283
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DispatchQueue.main.async {
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do{
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self.weatherInfos = try JSONDecoder().decode([WeatherInfos].self, from: responseData)
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for info in self.weatherAveInfos!{
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temperature += Double(info.ave_temp)
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}
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print("weatherInfos:(self.weatherInfos as Any)") // 11.9
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}catch{
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300
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print("Error: did not decode")
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302
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return
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304
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305
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}
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306
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307
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}
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308
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semaphore.signal()
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310
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311
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}
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312
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313
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task.resume()
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314
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315
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semaphore.wait()
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316
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317
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318
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319
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print("returnValue:(temperature as Any)") // 0.0
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320
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321
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return temperature
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322
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323
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}
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324
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+
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325
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+
```
|
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326
|
+
|
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327
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+
実行結果
|
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328
|
+
|
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329
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+
```console
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330
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331
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returnValue:0.0
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332
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333
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weatherInfos:Optional([Sample.WeatherInfos(id: 6, temp: 11.9)])
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334
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+
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335
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+
```
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229
337
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### 補足情報（FW/ツールのバージョンなど）
|
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230
338
|
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1
タイトル編集
test
CHANGED
|
@@ -1 +1 @@
|
|
|
1
|
-
DispatchGroupを利用するwhile文の
|
|
1
|
+
DispatchGroupを利用するwhile文の条件の設定の仕方
|
test
CHANGED
|
File without changes
|