在Android中将int转换为字节

那这个呢？

public static byte[] intToByteArray(int a){    byte[] ret = new byte[4];    ret[3] = (byte) (a & 0xFF);       ret[2] = (byte) ((a >> 8) & 0xFF);       ret[1] = (byte) ((a >> 16) & 0xFF);       ret[0] = (byte) ((a >> 24) & 0xFF);    return ret;}

和

public static int byteArrayToInt(byte[] b){    return (b[3] & 0xFF) + ((b[2] & 0xFF) << 8) + ((b[1] & 0xFF) << 16) + ((b[0] & 0xFF) << 24);}