bitmap <-> string

GSON으로 bitmap을 보관하기 위한 conversion

 

public static String bitmap2string(Bitmap bitmap) {
ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.PNG, 100, outputStream); // Adjust quality as needed
byte[] bitmapBytes = outputStream.toByteArray();
return Base64.encodeToString(bitmapBytes, Base64.NO_WRAP);
}

public static Bitmap string2bitmap (String base64String) {
byte[] decodedBytes = Base64.decode(base64String, Base64.NO_WRAP);
return BitmapFactory.decodeByteArray(decodedBytes, 0, decodedBytes.length);
}