objective-c - 如何将 NSString 从 CamelCase 转换为 TitleCase， 'playerName' 转换为 'Player Name'？

Question

我正在寻找将字符串从驼峰格式转换为首字母大写格式的最简单方法。

如何将“playerName”更改为“Player Name”？

Answer 1

NSString *str = @"playerName";
NSMutableString *str2 = [NSMutableString string];

for (NSInteger i=0; i<str.length; i++){
    NSString *ch = [str substringWithRange:NSMakeRange(i, 1)];
    if ([ch rangeOfCharacterFromSet:[NSCharacterSet uppercaseLetterCharacterSet]].location != NSNotFound) {
        [str2 appendString:@" "];
    }
    [str2 appendString:ch];
}
NSLog(@"%@", str2.capitalizedString);