回答編集履歴
2
ソースコードの修正
test
CHANGED
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@@ -16,36 +16,100 @@
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16
16
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17
17
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```
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18
18
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19
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-
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19
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+
weak var timer: Timer!
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20
20
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21
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-
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21
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+
var startTime = Date()
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22
22
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23
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-
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23
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+
var totalTime = 0.0
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24
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-
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25
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-
}
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29
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-
@IBAction func st
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27
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+
@IBAction func startTImer(_ sender: Any) {
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30
28
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31
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-
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29
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+
if timer != nil {
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32
30
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33
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-
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31
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timer.invalidate()
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34
32
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33
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}
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35
34
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35
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+
else {
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36
36
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37
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-
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37
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+
startTime = Date();
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38
38
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39
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-
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39
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}
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40
40
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41
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-
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41
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timer = Timer.scheduledTimer(
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42
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43
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timeInterval: 0.01,
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45
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target: self,
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46
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45
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-
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47
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selector: #selector(self.timerCounter),
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46
48
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47
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-
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49
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userInfo: nil,
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48
50
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51
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repeats: true)
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52
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49
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-
}
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53
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}
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54
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55
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+
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56
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+
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57
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@IBAction func stopTimer(_ sender: Any) {
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58
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59
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if timer != nil {
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60
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+
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61
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totalTime += Date().timeIntervalSince(startTime)
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62
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+
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63
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timer.invalidate()
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64
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65
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timer = nil
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66
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67
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}
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68
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+
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69
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displayTime(totalTime)
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70
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71
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}
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72
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73
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74
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75
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@IBAction func resetTimer(_ sender: Any) {
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76
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77
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startTime = Date();
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78
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79
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totalTime = 0.0
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80
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81
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displayTime(totalTime)
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82
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83
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}
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84
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85
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86
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87
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@objc func timerCounter() {
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88
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89
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let currentTime = totalTime + Date().timeIntervalSince(startTime)
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90
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91
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displayTime(currentTime)
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92
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93
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}
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94
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+
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95
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96
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97
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func displayTime(_ time: TimeInterval) {
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98
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99
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let minute = (Int)(fmod((time/60), 60))
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100
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101
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let second = (Int)(fmod(time, 60))
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102
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103
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let msec = (Int)((time - floor(time))*100)
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104
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105
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106
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107
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timerMinute.text = String(format:"%02d", minute)
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108
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109
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timerSecond.text = String(format:"%02d", second)
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110
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111
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timerMSec.text = String(format:"%02d", msec)
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112
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113
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}
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50
114
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51
115
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```
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1
入力途中で送信したため
test
CHANGED
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@@ -6,11 +6,13 @@
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6
6
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7
7
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- startTimer で startTime を現在時刻にする → それまでの計測はなくなる
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8
8
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9
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-
- startTimer で startTime をセットしない →
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9
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+
- startTimer で startTime をセットしない → そもそも計測スタートできない
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10
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11
11
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12
12
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13
13
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なので，それまでの計測時間の累計を覚えておく変数を用意し，累計に startTime と現在時刻の差を合わせたものを表示する必要があります．
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14
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+
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15
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+
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14
16
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15
17
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```
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16
18
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|
@@ -34,7 +36,15 @@
|
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34
36
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35
37
|
@IBAction func resetTimer(_ sender: Any) {
|
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36
38
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|
37
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-
// to
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39
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+
// totalTime を 0 にリセット
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40
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+
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41
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+
}
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42
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+
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43
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+
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44
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+
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45
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+
@objc func timerCounter() {
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46
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+
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47
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+
// startTime と現在時刻の差と totalTime を加算したものを画面に表示
|
|
38
48
|
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39
49
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}
|
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40
50
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