Android Utililty Methods Hex String to Byte Array Convert

List of utility methods to do Hex String to Byte Array Convert

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Description

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

Method

StringfromHex(String hex)
from Hex 
return new String(toByte(hex));
StringfromHex(String hex)
Get the string based on the hex format 
return new String(toByte(hex));
byte[]hexToBytes(String str)
hex To Bytes 
if (str == null) {
    return null;
} else if (str.length() < 2) {
    return null;
} else {
    int len = str.length() / 2;
    byte[] buffer = new byte[len];
    for (int i = 0; i < len; i++) {
...
byte[]hexToByte(String input)
hex To Byte 
byte[] output = new byte[input.length() / 2];
String input2 = input.toLowerCase();
for (int i = 0; i < input2.length(); i += 2) {
    output[i / 2] = hexToByte(input2.charAt(i),
            input2.charAt(i + 1));
return output;
byte[]hexToBytes(String hexString)
Takes a string in hexidecimal format and converts it to a binary byte array. 
byte[] result = new byte[hexString.length() / 2];
for (int i = 0; i < result.length; ++i) {
    int offset = i * 2;
    result[i] = (byte) Integer.parseInt(
            hexString.substring(offset, offset + 2), 16);
return result;
bytehexToByte(char char1, char char2)
hex To Byte 
byte output = 0x00;
if (char1 == '0') {
    output = 0x00;
} else if (char1 == '1') {
    output = 0x10;
} else if (char1 == '2') {
    output = 0x20;
} else if (char1 == '3') {
...
byte[]hexStringToByteArray(String s)
hex String To Byte Array 
int len = s.length();
byte[] data = new byte[len / 2];
for (int i = 0; i < len; i += 2) {
    data[i / 2] = (byte) ((Character.digit(s.charAt(i), 16) << 4) + Character
            .digit(s.charAt(i + 1), 16));
return data;
byte[]hexStringToBytes(String s)
hex String To Bytes 
int len = s.length();
byte[] data = new byte[len / 2];
for (int i = 0; i < len; i += 2) {
    data[i / 2] = (byte) ((Character.digit(s.charAt(i), 16) << 4) + Character
            .digit(s.charAt(i + 1), 16));
return data;
byte[]hex2bytes(String hex)
hexbytes 
byte[] bytes = new byte[hex.length() / 2];
for (int i = 0; i < bytes.length; i++) {
    bytes[i] = (byte) Integer.parseInt(
            hex.substring(i * 2, (i + 1) * 2), 16);
return bytes;
byte[]hexStr2ByteArr(String paramString)
hex Str Byte Arr 
byte[] arrayOfByte1 = paramString.getBytes();
int i = arrayOfByte1.length;
byte[] arrayOfByte2 = new byte[i / 2];
for (int j = 0; j < i; j += 2) {
    String str = new String(arrayOfByte1, j, 2);
    arrayOfByte2[(j / 2)] = (byte) Integer.parseInt(str, 16);
return arrayOfByte2;
...