回答編集履歴
4
もしくは。
test
CHANGED
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@@ -122,7 +122,7 @@
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122
122
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123
123
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124
124
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125
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-
sorted[section][0]でセクションの内容、
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125
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+
sorted[section][0]でセクションの内容（もしくは、arrayYearMonth[section]）、
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126
126
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127
127
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sorted[section][row+1]でセルの内容を取り出せます。
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128
128
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3
print修正。
test
CHANGED
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@@ -68,7 +68,9 @@
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68
68
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69
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var sorted = [Array<String>]()
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70
70
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71
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-
print(
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71
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print(sorted)
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72
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+
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73
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+
//=> []
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72
74
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73
75
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74
76
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@@ -80,7 +82,9 @@
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80
82
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81
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}.unique()
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82
84
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83
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-
print(
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85
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print(arrayYearMonth)
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86
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87
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//=> ["2016/08", "2016/07", "2016/05", "2015/02"]
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84
88
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85
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86
90
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@@ -92,7 +96,9 @@
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92
96
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}
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98
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print(
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99
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print(sorted)
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100
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101
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//=> [["2016/08"], ["2016/07"], ["2016/05"], ["2015/02"]]
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96
102
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97
103
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98
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@@ -108,17 +114,9 @@
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108
114
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109
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}
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110
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111
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-
print(
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print(sorted)
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112
118
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113
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-
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114
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-
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115
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-
//=> sorted(initialize): []
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-
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117
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-
//=> arrayYearMonth ["2016/08", "2016/07", "2016/05", "2015/02"]
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-
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-
//=> sorted(initialized): [["2016/08"], ["2016/07"], ["2016/05"], ["2015/02"]]
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-
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121
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-
//=>
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//=> [["2016/08", "26", "26", "26", "01"], ["2016/07", "27"], ["2016/05", "26", "25"], ["2015/02", "21"]]
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122
120
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123
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```
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122
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2
やり直し。
test
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@@ -1,21 +1,131 @@
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1
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-
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1
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+
# 目標
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2
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-
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3
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-
let date = "2016/08/26"
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4
2
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5
3
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6
4
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7
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-
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5
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+
最終的にこういう形を目指します。
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8
6
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9
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-
print(date.substringFromIndex(date.startIndex.advancedBy(9-1))) //0-originなので-1
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10
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-
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11
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-
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7
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+
色々と都合が良かったので年月と日を同じ配列に入れることにしました。
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12
8
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13
9
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10
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15
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-
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11
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+
```
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12
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17
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-
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13
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[
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18
14
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15
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["2016/08", "26", "26", "26", "01"],
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16
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19
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-
/
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17
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["2016/07", "27"],
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18
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["2016/05", "26", "25"],
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21
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["2016/02", "21"],
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22
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23
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]
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20
24
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21
25
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```
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26
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+
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27
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29
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+
# コード
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30
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31
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32
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33
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+
教えていただいたuniqueを使ってます。
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34
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35
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+
もっとSwiftらしいカッコイイ書き方が出来るかも知れませんが、
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36
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+
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37
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+
ヘッポコなのでこんな感じです。
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38
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+
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39
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+
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40
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41
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+
```swift
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42
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+
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43
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+
//元データ（日付順に並んでいるものとします）
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44
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45
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let array = [
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46
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47
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"2016/08/26",
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48
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49
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"2016/08/26",
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50
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51
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"2016/08/26",
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52
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53
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"2016/08/01",
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54
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55
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"2016/07/27",
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56
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57
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"2016/05/26",
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58
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59
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"2016/05/25",
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60
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+
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61
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"2015/02/21",
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62
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+
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63
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]
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64
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+
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65
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+
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66
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+
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67
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+
//振り分けArray
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68
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+
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69
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+
var sorted = [Array<String>]()
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70
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+
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71
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print("sorted(initialize):", sorted)
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72
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+
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73
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+
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74
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+
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75
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+
//重複削除済みの年月Arrayを生成
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76
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+
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77
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+
let arrayYearMonth = array.map {
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78
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+
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79
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+
$0.substringToIndex($0.startIndex.advancedBy(7))
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80
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+
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81
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+
}.unique()
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82
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+
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83
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+
print("arrayYearMonth", arrayYearMonth)
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84
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+
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85
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+
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86
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+
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87
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+
//振り分けArrayを初期化(先頭に年月を入れておく)
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88
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+
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89
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+
for yearMonth in arrayYearMonth {
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90
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+
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91
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+
sorted.append([yearMonth])
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92
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+
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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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+
print("sorted(initialized):", sorted)
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96
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+
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97
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+
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98
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+
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99
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+
//日を振り分け
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100
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+
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101
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+
for date in array {
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102
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+
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103
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+
let yearMonth: String = date.substringToIndex(date.startIndex.advancedBy(7))
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104
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+
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105
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+
let day: String = date.substringFromIndex(date.endIndex.advancedBy(-2))
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106
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+
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107
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+
sorted[arrayYearMonth.indexOf(yearMonth)!].append(day)
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|
108
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+
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109
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+
}
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|
110
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+
|
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111
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+
print("sorted:", sorted)
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|
112
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+
|
|
113
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+
|
|
114
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+
|
|
115
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+
//=> sorted(initialize): []
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|
116
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+
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|
117
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+
//=> arrayYearMonth ["2016/08", "2016/07", "2016/05", "2015/02"]
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|
118
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+
|
|
119
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+
//=> sorted(initialized): [["2016/08"], ["2016/07"], ["2016/05"], ["2015/02"]]
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120
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+
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121
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+
//=> sorted: [["2016/08", "26", "26", "26", "01"], ["2016/07", "27"], ["2016/05", "26", "25"], ["2015/02", "21"]]
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|
122
|
+
|
|
123
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+
```
|
|
124
|
+
|
|
125
|
+
|
|
126
|
+
|
|
127
|
+
sorted[section][0]でセクションの内容、
|
|
128
|
+
|
|
129
|
+
sorted[section][row+1]でセルの内容を取り出せます。
|
|
130
|
+
|
|
131
|
+
|
1
前からも。
test
CHANGED
|
@@ -1,11 +1,21 @@
|
|
|
1
1
|
```swift
|
|
2
2
|
|
|
3
|
-
let date = "
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3
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+
let date = "2016/08/26"
|
|
4
4
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5
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+
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6
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+
|
|
7
|
+
//前から9文字目以降を取り出す
|
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8
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+
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|
9
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+
print(date.substringFromIndex(date.startIndex.advancedBy(9-1))) //0-originなので-1
|
|
10
|
+
|
|
11
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+
//=> 26
|
|
12
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+
|
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13
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+
|
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14
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+
|
|
5
|
-
//後ろから
|
|
15
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+
//後ろから2文字を切り出す
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6
16
|
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7
17
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print(date.substringFromIndex(date.endIndex.advancedBy(-2)))
|
|
8
18
|
|
|
9
|
-
//=>
|
|
19
|
+
//=> 26
|
|
10
20
|
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|
11
21
|
```
|