更新时间:2023-11-11 14:24:04
首先,我们需要一个 Set
,其中包含代表表情符号的unicode值。
First of all we need a Set
containing the unicode values representing the emoji.
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对于这个答案,我使用的是表情系列(1F601-1F64F)和标志(2702-27B0)向您展示解决方案。但请注意,您应根据需要添加其他范围。
For this answer I am using the range of Emoticons (1F601-1F64F) and Dingbats (2702-27B0) to show you the solution. However keep in mind that you should add further ranges depending on your needs.
现在我们需要一种方法来计算Unicode标量码点一个人物。为此我使用这里提供的解决方案。
extension Character {
private var unicodeScalarCodePoint: Int {
let characterString = String(self)
let scalars = characterString.unicodeScalars
return Int(scalars[scalars.startIndex].value)
}
}
此扩展程序允许您从字符串。
extension String {
var emojis:[Character] {
let emojiRanges = [0x1F601...0x1F64F, 0x2702...0x27B0]
let emojiSet = Set(emojiRanges.flatten())
return self.characters.filter { emojiSet.contains($0.unicodeScalarCodePoint) }
}
}