public static Object get(Context context, String fileName, String key, Cipher cipher) {
try {
String hex = get(context, fileName, key, (String) null);
if (hex == null) return null;
byte[] bytes = HexUtil.decodeHex(hex.toCharArray());
if (cipher != null) bytes = cipher.decrypt(bytes);
Object obj = ByteUtil.byteToObject(bytes);
Log.i(TAG, key + " get: " + obj);
return obj;
} catch (Exception e) {
e.printStackTrace();
}
return null;
}
public static void put(Context context, String fileName, String key, Object ser, Cipher cipher) {
SharedPreferences sp = context.getSharedPreferences(fileName, Context.MODE_PRIVATE);
try {
Log.i(TAG, key + " put: " + ser);
if (ser == null) {
sp.edit().remove(key).commit();
} else {
byte[] bytes = ByteUtil.objectToByte(ser);
if (cipher != null) bytes = cipher.encrypt(bytes);
put(context, fileName, key, HexUtil.encodeHexStr(bytes));
}
} catch (Exception e) {
e.printStackTrace();
}
}