質問編集履歴
3
文章の修正
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test
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@@ -136,6 +136,14 @@
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}
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if let item = item as? Item {
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return item.childrens.count
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}
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return 0
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}
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2
文章の追記
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test
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@@ -30,6 +30,200 @@
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30
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私が書いたコードとしては以下のようなものになります。
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35
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``` swift3
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36
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37
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import Cocoa
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38
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+
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39
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40
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41
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class ViewController: NSViewController, NSOutlineViewDataSource, NSOutlineViewDelegate {
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42
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43
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44
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45
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let items: [Item] = {
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46
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return Item.itemsForNumberOf(parents: 5, childrens: 3)
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49
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}()
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@IBOutlet var outlineView: NSOutlineView!
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54
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55
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56
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57
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override func viewDidLoad() {
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58
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59
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super.viewDidLoad()
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60
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61
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62
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63
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// Do any additional setup after loading the view.
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64
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65
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self.outlineView.delegate = self
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66
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67
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self.outlineView.dataSource = self
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68
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69
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}
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70
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71
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72
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73
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override var representedObject: Any? {
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74
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75
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didSet {
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76
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77
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// Update the view, if already loaded.
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78
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79
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}
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80
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81
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}
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82
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83
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84
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85
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func outlineView(_ outlineView: NSOutlineView, child index: Int, ofItem item: Any?) -> Any
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86
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87
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{
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88
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89
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if item == nil {
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90
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91
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return items[index]
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92
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93
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}
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94
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95
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96
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97
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if let item = item as? Item, item.childrens.count > index {
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98
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99
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return item.childrens[index]
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100
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101
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}
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102
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103
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104
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105
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return ""
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106
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107
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}
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108
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109
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110
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111
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func outlineView(_ outlineView: NSOutlineView, isItemExpandable item: Any) -> Bool
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112
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113
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{
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114
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115
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guard let item = item as? Item else {
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116
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117
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return false
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118
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119
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}
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120
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121
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122
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123
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return !item.childrens.isEmpty
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124
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125
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}
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126
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+
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127
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128
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129
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func outlineView(_ outlineView: NSOutlineView, numberOfChildrenOfItem item: Any?) -> Int
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130
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131
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{
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132
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133
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if item == nil {
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134
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135
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return items.count
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136
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+
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137
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+
}
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138
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+
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139
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+
return 0
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140
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+
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141
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+
}
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142
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+
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143
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+
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144
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+
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145
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func outlineView(_ outlineView: NSOutlineView, viewFor tableColumn: NSTableColumn?, item: Any) -> NSView?
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146
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+
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147
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+
{
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148
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+
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149
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+
guard let item = item as? Item else {
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150
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+
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151
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+
return nil
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|
152
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+
|
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153
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+
}
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|
154
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+
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155
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+
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156
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+
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157
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+
let v = outlineView.make(withIdentifier: "HeaderCell", owner: self) as? NSTableCellView
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|
158
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+
|
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159
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+
|
|
160
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+
|
|
161
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+
if let tf = v?.textField {
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|
162
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+
|
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163
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+
tf.stringValue = item.name
|
|
164
|
+
|
|
165
|
+
}
|
|
166
|
+
|
|
167
|
+
return v
|
|
168
|
+
|
|
169
|
+
}
|
|
170
|
+
|
|
171
|
+
|
|
172
|
+
|
|
173
|
+
struct Item {
|
|
174
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+
|
|
175
|
+
let name: String
|
|
176
|
+
|
|
177
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+
var childrens: [Item] = []
|
|
178
|
+
|
|
179
|
+
|
|
180
|
+
|
|
181
|
+
/// Create a helper function to recursivly create items
|
|
182
|
+
|
|
183
|
+
///
|
|
184
|
+
|
|
185
|
+
/// - Parameters:
|
|
186
|
+
|
|
187
|
+
/// - parents: number of parent items
|
|
188
|
+
|
|
189
|
+
/// - childrens: number of children for each parent item
|
|
190
|
+
|
|
191
|
+
/// - Returns: array of Item
|
|
192
|
+
|
|
193
|
+
static func itemsForNumberOf(parents: Int, childrens: Int) -> [Item] {
|
|
194
|
+
|
|
195
|
+
var items: [Item] = []
|
|
196
|
+
|
|
197
|
+
for parentID in 1...parents {
|
|
198
|
+
|
|
199
|
+
var parent = Item(name: "Index \(parentID)",childrens: [])
|
|
200
|
+
|
|
201
|
+
for childrenID in 1...childrens {
|
|
202
|
+
|
|
203
|
+
let children = Item(name: "Index \(parentID).\(childrenID)",childrens: [])
|
|
204
|
+
|
|
205
|
+
parent.childrens.append(children)
|
|
206
|
+
|
|
207
|
+
}
|
|
208
|
+
|
|
209
|
+
items.append(parent)
|
|
210
|
+
|
|
211
|
+
}
|
|
212
|
+
|
|
213
|
+
|
|
214
|
+
|
|
215
|
+
return items
|
|
216
|
+
|
|
217
|
+
}
|
|
218
|
+
|
|
219
|
+
}
|
|
220
|
+
|
|
221
|
+
}
|
|
222
|
+
|
|
223
|
+
```
|
|
224
|
+
|
|
225
|
+
|
|
226
|
+
|
|
33
227
|
もし分かる方がいましたら教えていただけないでしょうか？
|
|
34
228
|
|
|
35
229
|
よろしくお願い致します。
|
1
文字修正
test
CHANGED
|
File without changes
|
test
CHANGED
|
@@ -16,6 +16,8 @@
|
|
|
16
16
|
|
|
17
17
|
子アイテムが表示されません。
|
|
18
18
|
|
|
19
|
+
（正しく動作するイメージとしてはindex 2項目の下に「index 2.1」、「index2.2」、「index2.3」と子項目を表示したいと考えて居ます。）
|
|
20
|
+
|
|
19
21
|
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20
22
|
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|
21
23
|
|