Во-первых, вы должны сохранить свои байты в файле. После сохранения изображения для преобразования в Multipart
File file = new File(fileUri);
RequestBody reqFile = RequestBody.create(MediaType.parse("image*//*"), file);
MultipartBody.Part body = MultipartBody.Part.createFormData(AppConstants.IMAGE, file.getName(), reqFile);
private File saveImage(byte[] bytes, int rotate) {
try {
Bitmap bitmap = decodeSampledBitmapFromResource(bytes, bytes.length, 800, 600, rotate);
return createFile(bitmap);
} catch (Exception e) {
Log.e("Picture", "Exception in photoCallback", e);
}
return null;
}
public Bitmap decodeSampledBitmapFromResource(byte[] bytes, int length, int reqWidth,
int reqHeight, int rotate) {
final BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeByteArray(bytes, 0, length, options);
options.inSampleSize = calculateInSampleSize(options, reqWidth, reqHeight);
options.inJustDecodeBounds = false;
Bitmap bm = BitmapFactory.decodeByteArray(bytes, 0, length, options);
Bitmap rotatedBitmap = null;
if (isFrontfaceing) {
if (rotate == 90 || rotate == 270) {
rotatedBitmap = rotateImage(bm, -rotate);
} else {
rotatedBitmap = rotateImage(bm, rotate);
}
} else {
rotatedBitmap = rotateImage(bm, rotate);
}
rotatedBitmap = Bitmap.createScaledBitmap(rotatedBitmap, reqWidth, reqHeight, true);
ByteArrayOutputStream out = new ByteArrayOutputStream();
rotatedBitmap.compress(Bitmap.CompressFormat.PNG, 100, out);
return rotatedBitmap;
}
public int calculateInSampleSize(BitmapFactory.Options options, int reqWidth,
int reqHeight) {
// Raw height and width of image
final int height = options.outHeight;
final int width = options.outWidth;
int inSampleSize = 1;
if (height > reqHeight || width > reqWidth) {
final int halfHeight = height / 2;
final int halfWidth = width / 2;
// Calculate the largest inSampleSize value that is a power of 2 and keeps both
// height and width larger than the requested height and width.
while ((halfHeight / inSampleSize) > reqHeight
|| (halfWidth / inSampleSize) > reqWidth) {
inSampleSize *= 2;
}
}
return inSampleSize;
}
public File createFile(Bitmap bitmap) {
File photo =
new File(getWorkingDirectory().getAbsolutePath()+"yourFileName" + ".jpg");
FileOutputStream fos = null;
try {
fos = new FileOutputStream(photo.getPath());
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, fos);
fos.close();
} catch (Exception e) {
e.printStackTrace();
return null;
}
return photo;
}