cocos2d中移除微信昵称中的特殊字符（ios与android）

因项目需求，微信呢称中需要去掉特殊。直接上代码了。希望对大家有帮助

ios版：

const char* IosHelper::removeEmoji(const char* str)
{
std::string strLen = str;
NSString* username = [[NSString alloc] initWithBytes:str length:strLen.length() encoding:NSUTF8StringEncoding];
cocos2d::log("IosHelper::removeEmoji username0 = %s",str);
NSLog(@"IosHelper::removeEmoji username1 = %@",username);
//NSString *regex = @"^[a-zA-Z0-9_\u4e00-\u9fa5]+$";
NSString *regex = @"[\u0020-\u007e\u4e00-\u9fa5]";
//NSString *regex = @"^[a-zA-Z\u4e00-\u9fa5]+";
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF MATCHES %@", regex];
NSString *temp = nil;
//NSLog(@"IosHelper::removeEmoji username = %d",[username length]);
for(int i = 0; i < [username length]; i++)
{
temp = [username substringWithRange:NSMakeRange(i, 1)];
//NSLog(@"i = %d char = %x str = %@",i, temp,temp);
if ([predicate evaluateWithObject:temp]) {
//NSLog(@"This character is OK");
} else {
NSRange range = NSMakeRange(i, 1);
username = [username stringByReplacingCharactersInRange:range withString:@" "];
}
}

NSString *withoutEmojiUsername = [username stringByReplacingOccurrencesOfString:@" " withString:@""];
NSLog(@"IosHelper::removeEmoji username2 = %@",withoutEmojiUsername);
const char* retStr = [withoutEmojiUsername UTF8String];
cocos2d::log("IosHelper::removeEmoji username3 = %s",retStr);
return retStr;
}android
public static String RemoveEmoji(String str)
{
//String regEx = "[^A-Za-z0-9\u4e00-\u9fa5]";
String regEx = "[^\u0020-\u007e\u4e00-\u9fa5]";
Pattern p = Pattern.compile(regEx);
Matcher m = p.matcher(str);
return m.replaceAll("").trim();
}