回答編集履歴
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追記
test
CHANGED
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@@ -79,3 +79,63 @@
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79
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}
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```
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---
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86
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87
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88
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89
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Thread を使う方法も書いておきます。
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90
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91
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92
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```swift
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94
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95
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@IBAction func countWords() {
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96
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97
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let str = """
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98
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99
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Alice was beginning to get very tired of sitting by her sister on the bank, and of having nothing to do. Once or twice she had peeped into the book her sister was reading, but it had no pictures or conversations in it, "and what is the use of a book," thought Alice, "without pictures or conversations?"
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100
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101
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"""
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let arr: [String] = str.components(separatedBy: " ")
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105
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106
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107
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Thread.detachNewThread {
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108
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109
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// バックグラウンドスレッドで処理を行う。
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110
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111
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for i in 0..<arr.count {
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112
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113
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let word = arr[i]
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114
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115
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let count = arr.filter { $0 == word }.count
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print(i)
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118
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print("(word)が(count)個ありました")
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120
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121
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122
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// UI の更新はメインスレッドで行う必要がある。
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124
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DispatchQueue.main.async {
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126
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127
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self.totalCountLabel.text = "計(i)個"
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}
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133
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Thread.sleep(forTimeInterval: 0.1)
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}
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136
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137
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}
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138
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139
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}
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```
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