Question

I am trying to send a file (png to be specific) over sockets from python server to android client. I know that my python server is sending the data, I just can’t figure out how to receive the data on the android side. Here is what the code looks like to receive the file.

    String path = Environment.getExternalStorageDirectory().toString() +"/tmp/test.png";     
        try {
            socket = new Socket("192.168.1.129", 29877);

             is = socket.getInputStream();
             out = new FileOutputStream(path);
            byte[] temp = new byte[1024];
            for(int c = is.read(temp,0,1024); c > 0; c = is.read(temp,0,1024)){
                out.write(temp,0,c);
                Log.d("debug tag", out.toString());
            }
            Log.d("debug tag", temp.toString());

            Bitmap myBitmap = BitmapFactory.decodeByteArray(temp, 0, temp.length);
            imageView.setImageBitmap(myBitmap);

Thanks for any advice.

Answer 1

You are reading from socket in 1K chunks and saving them into a file. Then you try to interpret the last chunk as a bitmap. This doesn’t work.

Either read your image from the file after you saved it, or buffer it all in memory.