回答編集履歴
2
参考サンプルを追記
test
CHANGED
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@@ -41,3 +41,53 @@
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41
41
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42
42
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43
43
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```
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44
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+
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45
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46
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47
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+
追記
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48
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49
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50
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51
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```
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52
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53
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func updateImageView() {
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54
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55
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self.fetchImage(url: URL("https://xxx.xxxx.co.jp/xxx.jpg")!, completionHanlder: { (image, error) in
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56
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57
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/*
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58
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59
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画像取得後の処理。
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60
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61
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*/
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62
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63
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});
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64
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65
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}
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66
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67
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68
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69
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func fetchImage(url: URL, completionHandler: (image: UIImage?, error: NSError?) -> Void) {
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70
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71
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let downloader = ImageDownloader()
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72
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73
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let urlRequest = URLRequest(url: url)
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74
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75
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76
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77
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downloader.download(urlRequest) { response in
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78
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79
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switch response.result {
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80
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81
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case .Success(let image):
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82
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83
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completionHandler(image, nil)
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84
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85
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case .Failure(let error):
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86
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87
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completionHandler(nil, error)
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88
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89
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}
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90
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91
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}
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92
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93
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```
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1
completionHandler引数の修正
test
CHANGED
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@@ -12,7 +12,7 @@
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12
12
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13
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```
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14
14
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15
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-
func fetchImage(url: URL, completionHandler(image: UIImage?)) {
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15
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func fetchImage(url: URL, completionHandler: (image: UIImage?) -> Void) {
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16
16
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let downloader = ImageDownloader()
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18
18
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