Android Utililty Methods String to Hex String Convert

List of utility methods to do String to Hex String Convert

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Description

The list of methods to do String to Hex String Convert are organized into topic(s).

Method

StringtoHex(String txt)
to Hex 
return toHex(txt.getBytes());
StringtoHex(byte[] buf)
to Hex 
if (buf == null)
    return "";
StringBuffer result = new StringBuffer(2 * buf.length);
for (int i = 0; i < buf.length; i++) {
    appendHex(result, buf[i]);
return result.toString();
StringtoHexString(String str)
to Hex String 
byte[] byteArray;
try {
    byteArray = str.getBytes("utf-8");
} catch (UnsupportedEncodingException e) {
    e.printStackTrace();
    byteArray = str.getBytes();
return bytesToHexString(byteArray);
...
StringhexStr2Str(String hexStr)
hex Str Str 
String str = "0123456789ABCDEF";
char[] hexs = hexStr.toCharArray();
byte[] bytes = new byte[hexStr.length() / 2];
int n;
for (int i = 0; i < bytes.length; i++) {
    n = str.indexOf(hexs[2 * i]) * 16;
    n += str.indexOf(hexs[2 * i + 1]);
    bytes[i] = (byte) (n & 0xff);
...
StringhexStringToCommonString(String hexString)
hex String To Common String 
byte[] bytes = hexStringToBytes(hexString);
try {
    return new String(bytes, "gbk");
} catch (UnsupportedEncodingException e) {
    e.printStackTrace();
    return new String(bytes);
StringtoHex(String txt)
to Hex 
return toHex(txt.getBytes());
StringtoHex(String txt)
Retrieve a string's hex format 
return toHex(txt.getBytes());
byte[]parseHexStr2Byte(String hexStr)
parse Hex Str Byte 
if (hexStr.length() < 1)
    return null;
byte[] result = new byte[hexStr.length() / 2];
for (int i = 0; i < hexStr.length() / 2; i++) {
    int high = Integer.parseInt(hexStr.substring(i * 2, i * 2 + 1),
            16);
    int low = Integer.parseInt(
            hexStr.substring(i * 2 + 1, i * 2 + 2), 16);
...
byte[]stringToHex(String string)
Converts the string to a hex representation with leading 0 byte and 2 null terminating byte 
ByteArrayOutputStream stream = new ByteArrayOutputStream();
byte name_bytes_temp[] = string.getBytes();
int length = name_bytes_temp.length;
for (int i = 0; i < (length + 1) * 2; ++i) {
    if (i % 2 == 1 && (i - 1) / 2 < length) {
        stream.write(name_bytes_temp[(i - 1) / 2]);
    } else
        stream.write((byte) 0);
...
Stringstr2HexStr(String str)
str Hex Str 
char[] chars = "0123456789ABCDEF".toCharArray();
StringBuilder sb = new StringBuilder("");
byte[] bs = str.getBytes();
int bit;
for (int i = 0; i < bs.length; i++) {
    bit = (bs[i] & 0x0f0) >> 4;
    sb.append("0x");
    sb.append(chars[bit]);
...