Function getutf8Length

core/android/JNIUtil.cpp:111–119

}

static int getutf8Length(char header) {
    int len = 0;
    char mask = (char)0x80;
    while(header & mask) {
        header <<= 1;
        len++;
    }
    return len == 0 ? 1 : len;
}

static int oneUtf8Convert2Utf16(const std::string &utf8Str, int start, char *output) {
    char b1, b2, b3;