Android examples for java.lang:Hex
Convert hex String To Byte Array
public class Main{ public static byte[] hexStringToByteArray(String s) { int len = s.length(); byte[] d = new byte[len / 2]; for (int i = 0; i < len; i += 2) { d[i / 2] = (byte) ((Character.digit(s.charAt(i), 16) << 4) + Character .digit(s.charAt(i + 1), 16)); }//from w w w . j a va2 s . c om return d; } }