ios - NSStringEncoding到字符串

Question

码

NSString* strFromWeb = [NSString stringWithContentsOfURL:url usedEncoding:&enc error:&error];
NSLog(@"%d", enc);

此打印4，因为

NSUTF8StringEncoding  = 4,

有一些内置函数可以打印NSUTF8StringEncoding或类似的东西吗？

Answer 1

您可以将NSStringEncoding转换为CFStringEncoding，然后从中获取名称:

NSStringEncoding enc;
NSString* strFromWeb = [NSString stringWithContentsOfURL:url usedEncoding:&enc error:&error];
if (strFromWeb) {
    CFStringEncoding cfEnc = CFStringConvertNSStringEncodingToEncoding(enc);
    NSString *name = (NSString *)CFStringGetNameOfEncoding(cfEnc);
    NSLog(@"Encoding = %@", name);
} else {
    // log error
}