how to locate files in a android library project

Question

I have a android library project in which a ImageButton is used. The image file is located in src/assets/img. How to use imageButton.setImageUri() to set the image for this button? The library project will be exported as a jar file which will be used for other project. any idea?

code:

try 
{
    // get input stream
    InputStream ims = mContext.getAssets().open("pause.png");
    // load image as Drawable
    Drawable d = Drawable.createFromStream(ims, null);
    // set image to ImageView
    mPauseButton.setImageDrawable(d);
}
catch(IOException ex) 
{
}

the above code is in the lib project. there is another project called ProjectA. projectA will pass its context to mContext for the lib project.

Techfist · Answer 1 · 2013-12-12T09:41:31.280

0

Try below code.

try 
    {
        // get input stream
        InputStream ims = getAssets().open("<Your file name>.<Extension>");
        // load image as Drawable
        Drawable d = Drawable.createFromStream(ims, null);
        // set image to ImageView
        mImage.setImageDrawable(d);
    }
    catch(IOException ex) 
    {
        return;
    }

edited Dec 12 '13 at 09:41

answered Dec 12 '13 at 09:27

Techfist

4,314
6
22
32

thank you for your quick response. but I got filenotfound exception. I put play.png under project_root/assets. I can see this file in the exported jar. does getAssets() in your code mean Context.getAssets()? – David Dec 12 '13 at 09:40
If you writing this code under a activity then call it directly, otherwise it has to be called via a valid context reference, make sure you change the file name inside .open("") to yours file name. – Techfist Dec 12 '13 at 09:42
I am sure the file name is correct. the context might not be correct. I use this jar file in projectA, so there is no image there. how can I use the lib project's context? – David Dec 12 '13 at 09:47
after I put the image into projectA/assets, it works. But I need the images under lib project. – David Dec 12 '13 at 09:49

score 0 · Accepted Answer · answered Dec 12 '13 at 09:53

0

You cannot get the assets from a jar file. Try to write a function inside the library project to retrieve the assets image.

answered Dec 12 '13 at 09:53

Ashwin S Ashok

3,623
2
29
36

i don't know what the file path is when the jar is imported in another project – David Dec 12 '13 at 09:55
The image is in library project? Then you just write a function to get the assets file in tht library project and then call that function in your main project. – Ashwin S Ashok Dec 12 '13 at 09:59
yes, the image is in lib project. do you mean I have a function in lib project such as loadSkin(parentDir), then I call this function in projectA and pass current apk dir to this func? if so, what is the specified path for the image? – David Dec 12 '13 at 10:05
Path should be your library project's assets/filename.png. – Ashwin S Ashok Dec 12 '13 at 10:07

how to locate files in a android library project

2 Answers2