回答編集履歴
1
修正
answer
CHANGED
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@@ -30,4 +30,43 @@
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30
30
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self.presentViewController(alertController, animated: true, completion: nil)
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31
31
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}
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32
32
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33
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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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メソッドの中で他のメソッドを呼ぶには、呼び出す前にメソッドを定義していないとだめなので、先頭で定義して呼び出し時に`self`を付けないと以下のように使用できます。
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36
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+
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37
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```swift
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38
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func jumpTourl(urlString: String){
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39
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40
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func showAlert(message: String){
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41
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// >= ios8
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42
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let alertController = UIAlertController(title: "Error", message: message, preferredStyle: .Alert)
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43
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let defaultAction = UIAlertAction(title: "OK", style: .Default, handler: nil)
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44
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alertController.addAction(defaultAction)
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45
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self.presentViewController(alertController, animated: true, completion: nil)
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46
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}
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47
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48
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49
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if let url = NSURL(string: urlString){
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50
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let urlRequest = NSURLRequest(URL: url)
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51
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self.webView.loadRequest(urlRequest)
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52
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} else {
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53
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showAlert("Invalid URL")
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54
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}
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55
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56
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57
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var urlString = self.textField.text
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58
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urlString = urlString!.stringByTrimmingCharactersInSet(NSCharacterSet.whitespaceCharacterSet())
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59
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if urlString == "" {
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60
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// alert
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61
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showAlert("Please enter URL")
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62
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} else {
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63
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// jumpTourl
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64
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self.jumpTourl(urlString!)
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65
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self.setupButtonsEnabled()
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66
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}
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67
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self.textField.resignFirstResponder()
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68
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return true
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69
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}
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70
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71
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```
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72
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