31 lines
1.2 KiB
Swift
31 lines
1.2 KiB
Swift
//
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// String.swift
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// MusicPlayer
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//
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// Created by Mr.Zhou on 2024/4/7.
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//
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import Foundation
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extension String {
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/// 字符串转类type
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func classFromString() -> AnyClass? {
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// 获swift中的命名空间名
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var name = Bundle.main.object(forInfoDictionaryKey: "CFBundleExecutable") as? String
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// 如果包名中有'-'横线这样的字符，在拿到包名后，还需要把包名的'-'转换成'_'下横线
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name = name?.replacingOccurrences(of: "-", with: "_")
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// 拼接命名空间和类名，”包名.类名“
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let fullClassName = name! + "." + self
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// 因为NSClassFromString()返回的AnyClass?，需要给个默认值返回!
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let anyClass: AnyClass? = NSClassFromString(fullClassName)
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// 类type
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return anyClass
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}
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}
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extension Range where Bound == String.Index {
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func toNSRange(in string: String) -> NSRange {
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let utf16IndexStart = string.utf16.distance(from: string.utf16.startIndex, to: lowerBound)
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let utf16IndexEnd = string.utf16.distance(from: string.utf16.startIndex, to: upperBound)
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return NSRange(location: utf16IndexStart, length: utf16IndexEnd - utf16IndexStart)
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}
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}
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