回答編集履歴
2
参考サンプルを追記
answer
CHANGED
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@@ -19,4 +19,29 @@
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19
19
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}
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20
20
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}
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21
21
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22
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+
```
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23
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+
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24
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+
追記
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25
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+
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26
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+
```
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27
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func updateImageView() {
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28
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self.fetchImage(url: URL("https://xxx.xxxx.co.jp/xxx.jpg")!, completionHanlder: { (image, error) in
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29
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/*
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30
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画像取得後の処理。
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31
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+
*/
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32
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});
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33
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+
}
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34
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+
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35
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func fetchImage(url: URL, completionHandler: (image: UIImage?, error: NSError?) -> Void) {
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36
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let downloader = ImageDownloader()
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37
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let urlRequest = URLRequest(url: url)
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38
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+
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39
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+
downloader.download(urlRequest) { response in
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40
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switch response.result {
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41
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case .Success(let image):
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42
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completionHandler(image, nil)
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43
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+
case .Failure(let error):
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44
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completionHandler(nil, error)
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45
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+
}
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46
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+
}
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22
47
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```
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1
completionHandler引数の修正
answer
CHANGED
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@@ -5,7 +5,7 @@
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5
5
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6
6
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7
7
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```
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8
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-
func fetchImage(url: URL, completionHandler(image: UIImage?)) {
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8
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+
func fetchImage(url: URL, completionHandler: (image: UIImage?) -> Void) {
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9
9
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let downloader = ImageDownloader()
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10
10
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let urlRequest = URLRequest(url: url)
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11
11
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