Dynamically changing the background image after download [closed]

Question

Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.

---

Closed 8 years ago.

• Questions concerning problems with code you've written must describe the specific problem — and include valid code to reproduce it — in the question itself. See SSCCE.org for guidance.
• Questions asking for code must demonstrate a minimal understanding of the problem being solved. Include attempted solutions, why they didn't work, and the expected results. See also: Stack Overflow question checklist

Improve this question

1) I have a android application which has a default background Image()

2) I have a login page where the user selects an item from a drop down list ..and depending on the item i make an API call to download an image.

3) Once the Image is downloaded i want to change the background of that page and also cache it so as to use the same image in rest of the pages

Can anyone suggest a way to do this. AM stuck on finding a solution since hours

Please help!!

Answer 1

1) I have a android application which has a default background Image()

Good start

2) I have a login page where the user selects an item from a drop down list ..and depending on the item i make an API call to download an image

Use AsyncTask to download the image in doInBackground()

3) Once the Image is downloaded i want to change the background of that page and also cache it so as to use the same image in rest of the pages

You can update the background in onPostExecute() of your AsyncTask. Save the image in a DB or maybe just to a file on the device or as a static variable in a Global class (not recommended by most)

I hope this can help you get started