objective-c - CFURLCreateStringByAddingPercentEscapes 已弃用。替代品？

Question

这是我的代码

CFStringRef escapedStr;

  escapedStr = CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault,
                                                       originalString,
                                                       leaveUnescaped,
                                                       kCharsToForceEscape,
                                                       kCFStringEncodingUTF8);

错误是：

CFURLCreateStringByAddingPercentEscapes 在 ios 9.0 中已弃用，请使用 stringByAddingPercentEncodingWithAllowedCharacters，它始终使用推荐的 UTF-8 设置。

有人可以帮助如何在上面的代码中CFURLCreateStringByAddingPercentEscapes替换。stringByAddingPercentEncodingWithAllowedCharacters

Answer 1

使用下面的代码可能会有所帮助

CFStringRef escapedStr;
escapedStr = (__bridge CFStringRef)([str stringByAddingPercentEncodingWithAllowedCharacters:[kCFAllocatorDefault,originalString,leaveUnescaped,kCharsToForceEscape,kCFStringEncodingUTF8]]);// here str is your NSString