中英文混合的字符串长度计算

//源字符串长度
String string = "phil安卓";
Logger.d(string.length());//输出6
try {
    String newString = new String(string.getBytes("GB2312"), "ISO-8859-1");
    Logger.d(newString.length());//输出8
} catch (UnsupportedEncodingException e) {
    e.printStackTrace();
}