How to read drawable bits as InputStream

Question

There\'s say some ImageView object. I want to read bits/raw data of this object as InputStream. How to do that?

Answer 1

First get Background image of the imageview as an object of Drawable

iv.getBackground();

Then convert Drwable image into bitmap using

BitmapDrawable bitDw = ((BitmapDrawable) d);
        Bitmap bitmap = bitDw.getBitmap();

Now use ByteArrayOutputStream to get the bitmap into the stream and get bytearray[] convert bytearray into ByteArrayInputStream

you can use the following code to get inputstream from imageview

Full Source code

ImageView iv = (ImageView) findViewById(R.id.splashImageView);
    Drawable d =iv.getBackground();
    BitmapDrawable bitDw = ((BitmapDrawable) d);
    Bitmap bitmap = bitDw.getBitmap();
    ByteArrayOutputStream stream = new ByteArrayOutputStream();
    bitmap.compress(Bitmap.CompressFormat.JPEG, 100, stream);
    byte[] imageInByte = stream.toByteArray();
    System.out.println("........length......"+imageInByte);
    ByteArrayInputStream bis = new ByteArrayInputStream(imageInByte);

Thanks Deepak