Upload compressed image

Question

I am new to android. I have created one app to upload an image to server. It works perfectly for small size images but for larger images(>1 MB), this does not work. Here is

Answer 1

1. For compressing an image use this library that is on GitHub (reduce size):

   https://github.com/zetbaitsu/Compressor

2. Encode to base64:

public String encodeBase64(Bitmap image){
    ByteArrayOutputStream byteArrayOS = new ByteArrayOutputStream();
    image.compress(Bitmap.CompressFormat.PNG, 100, byteArrayOS);
    return Base64.encodeToString(byteArrayOS.toByteArray(), Base64.DEFAULT);
}

3. Send base64 String to server via volley request (Post or Get method):

   https://developer.android.com/training/volley/simple.html

Answer 2

You need to do this man:

1: Get Image and check size. For example: if fileSize<=1MB

2: ShrinkBitmap (So that large image won't cause memory issues. See ShrinkBitmap() below.

3: If you want to Encode to base64 or else then you can do it and compress to 100%. See Encodetobase64() below

4: Send to Server

public Bitmap ShrinkBitmap(String file, int width, int height)
{
    BitmapFactory.Options bmpFactoryOptions = new BitmapFactory.Options();
    bmpFactoryOptions.inJustDecodeBounds = true;
    Bitmap bitmap = BitmapFactory.decodeFile(file, bmpFactoryOptions);

    int heightRatio = (int) Math.ceil(bmpFactoryOptions.outHeight / (float) height);
    int widthRatio = (int) Math.ceil(bmpFactoryOptions.outWidth / (float) width);

    if(heightRatio > 1 || widthRatio > 1)
    {
        if(heightRatio > widthRatio)
        {
            bmpFactoryOptions.inSampleSize = heightRatio;
        }
        else
        {
            bmpFactoryOptions.inSampleSize = widthRatio;
        }
    }

    bmpFactoryOptions.inJustDecodeBounds = false;
    bitmap = BitmapFactory.decodeFile(file, bmpFactoryOptions);
    return bitmap;
}  



    public String encodeTobase64(Bitmap image)
{
    String byteImage = null;
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    image.compress(Bitmap.CompressFormat.JPEG, 100, baos);
    byte[] b = baos.toByteArray();
    try
    {
        System.gc();
        byteImage = Base64.encodeToString(b, Base64.DEFAULT);
    }
    catch (Exception e)
    {
        e.printStackTrace();
    }
    catch (OutOfMemoryError e)
    {
        baos = new ByteArrayOutputStream();
        image.compress(Bitmap.CompressFormat.JPEG, 100, baos);
        b = baos.toByteArray();
        byteImage = Base64.encodeToString(b, Base64.DEFAULT);
        Log.e("Bitmap", "Out of memory error catched");
    }
    return byteImage;
}  

This encoding function is compressing bitmap also.

Goodluck!!

Answer 3

In my app too i face this problem.what i have done was, i uploaded the images and set that to imageview and i gave static height and width to be 300*300. and saved the bitmap in server.

bitmap = Bitmap.createScaledBitmap(bitmap,desiredImageWidth,desiredImageHeight,true);

sace this in server. here desiredImageWidth, desiredImageHeight are static values.