How could a module get the images in Resources/images?--android

I develop an android module and need it to get the image in the Directory:Resource/images,but it could not get the image until now... here is the code to use the method which get images in the module:

WT.sendImage('images/appicon.png');

and this is the method code in the module:

public void sendImage(String path)
    {Bitmap bmp = BitmapFactory.decodeFile(path);
//do sth to the bmp

I always get "bitmap decode failed" here. Is there anything wrong in the directory? It works well with 'images/appicon.png' in IOS. I don't know why? Could some guys give me advice? Thx a lot.

Try this

Bitmap bmp = BitmapFactory.decodeFile(path)
return TiBlob.blobFromImage(bmp)

and return type of sendImage mothod TiBlob