如何从服务器设置我的android应用背景？

Question

I'm quite new to android programming and I have the following problem. I want to be able to put an image om my server and then if I use my app it should use that image as a background. From previous research I understand I cant save any files to the drawable file? So is this even possible?

I am now this far:

  URL url = new URL ("http://oranjelan.nl/oranjelan-bg.png");
  InputStream input = url.openStream();
  try { 
     String storagePath = Environment.getExternalStorageDirectory();
     OutputStream output = new FileOutputStream (storagePath + "/oranjelangb.png");
     try {
    byte[] buffer = new byte[1000000];
        int bytesRead = 0;
        while ((bytesRead = input.read(buffer, 0, buffer.length)) >= 0) {
        output.write(buffer, 0, bytesRead);
        }
     } finally {
      output.close();
        }
    } finally {
   input.close();
 }

But I get the following error @ String storagePath = Environment.getExternalStorageDirectory(); The compiller says cannot convert file to string.

Answer 1

It should be possible. Simple steps may include :-

1) Download image file from server, Store it to SDcard or assets folder. links for step 1 >> link1 link2

2) Create a Bitmap from the file you downloaded.

3) Set that bitmap as a Background image.

You can pick steps and search on SO there should be lots of answers available.