Android set dynamic image on Imagebutton

Question

I want to set image dynamically on the ImageButton in android. However, I have more than 200 images. What would be the good solution for that?

The best idea is that I can use the name of image to call different images. i.e. imagebutton.setImage("/res/abc.png"); however, it seems to me that it is not trivial to do so.. please help me to solve these problems.

score 1 · Answer 1 · edited May 05 '12 at 09:46

You can take the images in your resource folder. After that follow this simple code:

try {               
                Class<drawable> res = R.drawable.class;
                if(str!=null){                                   
                Field field = res.getField(str);
                int drawableId = field.getInt(null);
                bengalidaypng.setImageResource(drawableId);              
                }
            }
            catch (Exception e) {
                      System.out.println("Image not found in drawable folder");
            }

A more detailed sample can be found here.

Peter Knego · Accepted Answer · 2010-11-12T08:05:20.883

1

You could use Typed Array resource. There is an example at the end of the link how to use it for drawables (images).

Edited:

Resources can be accessed as raw data: use AssetManager.open(..) Then you can use BitmapFactory.decodeStream(..) to create a Bitmap from the data stream.

edited Nov 12 '10 at 08:05

answered Nov 11 '10 at 17:04

Peter Knego

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do you know how can i access images from drawable folder? – justicepenny Nov 11 '10 at 17:53
i mean not using R.id.XXX.png but like (res/drawable/xxx.png)? – justicepenny Nov 11 '10 at 17:53
drawable folder is inside .apk package and can not be accessed directly, except via resource methods – Peter Knego Nov 11 '10 at 18:53
The example at the end of the link explains how to load image resources without explicitly addressing each one by it's name. Is there any other reason why you can not use this approach? – Peter Knego Nov 11 '10 at 18:56

score 0 · Answer 3 · edited May 23 '17 at 11:56

0

You could store the images into a database, then pull the images into the ListView when you are binding each row.

edited May 23 '17 at 11:56

Community

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answered Nov 11 '10 at 17:01

Bryan Denny

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then where should i put my images if there is no database? – justicepenny Nov 11 '10 at 17:52

Android set dynamic image on Imagebutton

3 Answers3