Android Utililty Methods AES Encrypt

byte[] rawKey = getRawKey(theRawKey.getBytes());
byte[] result = encrypt(rawKey, cleartext.getBytes());
String fromHex = toHex(result);
String base64 = new String(Base64.encodeToString(
        fromHex.getBytes(), 0));
return base64;

byte[] data = null;
try {
    data = content.getBytes("UTF-8");
} catch (Exception e) {
    e.printStackTrace();
data = encrypt(data, password);
String result = byte2hex(data);
...

try {
    KeyGenerator kgen = KeyGenerator.getInstance("AES");
    kgen.init(128, new SecureRandom(password.getBytes()));
    SecretKey secretKey = kgen.generateKey();
    byte[] enCodeFormat = secretKey.getEncoded();
    SecretKeySpec key = new SecretKeySpec(enCodeFormat, "AES");
    Cipher cipher = Cipher.getInstance("AES");
    byte[] byteContent = content.getBytes("utf-8");
...

try {
    KeyGenerator kgen = KeyGenerator.getInstance("AES");
    kgen.init(128, new SecureRandom(password.getBytes()));
    SecretKey secretKey = kgen.generateKey();
    byte[] enCodeFormat = secretKey.getEncoded();
    SecretKeySpec key = new SecretKeySpec(enCodeFormat, "AES");
    Cipher cipher = Cipher.getInstance("AES");
    byte[] byteContent = content.getBytes("utf-8");
...

try {
    KeyGenerator kgen = KeyGenerator.getInstance("AES");
    kgen.init(128, new SecureRandom(password.getBytes()));
    SecretKey secretKey = kgen.generateKey();
    byte[] enCodeFormat = secretKey.getEncoded();
    SecretKeySpec key = new SecretKeySpec(enCodeFormat, "AES");
    Cipher cipher = Cipher.getInstance("AES");
    byte[] byteContent = content.getBytes("utf-8");
...

try {
    SecretKeySpec sks = null;
    byte[] encodedBytes = null;
    SecureRandom sr = SecureRandom.getInstance("SHA1PRNG");
    sr.setSeed(seed.getBytes());
    KeyGenerator kg = KeyGenerator.getInstance("AES");
    kg.init(128, sr);
    sks = new SecretKeySpec((kg.generateKey()).getEncoded(), "AES");
...

IvParameterSpec zeroIv = new IvParameterSpec(ENCRYPT_IV);
SecretKeySpec key = new SecretKeySpec(dataPassword.getBytes(),
        "AES");
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
cipher.init(Cipher.ENCRYPT_MODE, key, zeroIv);
byte[] encryptedData = cipher.doFinal(cleartext.getBytes(CHARSET));
return new String(Base64.encodeBase64(encryptedData));

byte[] keyByte = key.getBytes();
SecretKeySpec keySpec = new SecretKeySpec(keyByte, "AES");
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
IvParameterSpec ivSpec = new IvParameterSpec(iv);
cipher.init(Cipher.ENCRYPT_MODE, keySpec, ivSpec);
byte[] srcByte = src.getBytes();
byte[] encrypted = cipher.doFinal(srcByte);
String result = Base64.encodeToString(encrypted, Base64.DEFAULT);
...

byte[] rawKey = getRawKey(key.getBytes());
byte[] result = encrypt(rawKey, src.getBytes());
return toHex(result);

byte[] result = null;
try {
    byte[] rawkey = getRawKey(seed.getBytes());
    result = encrypt(rawkey, clearText.getBytes());
} catch (Exception e) {
    e.printStackTrace();
String content = toHex(result);
...