setImageResource() Returns null

Question

I am trying to get images from my asset folder and setting them to my variable called insectImage. Here is what I've done:

InsectRecyclerAdapter.InsectHolder insectHolder = holder;
Insect insectItem = (Insect) recyclerViewItems.get(position);

String imageName = insectItem.getImageName();
Log.d("imageName",imageName);
int imageResID = mContext.getResources().getIdentifier(imageName, "drawable", mContext.getPackageName());
Log.d("imageID", ""+imageResID);
insectHolder.insectImage.setImageResource(imageResID);

imageResID returns 0 in the logcat, but the imageName variable is set to one of my images that exist in my assets folder. Logcat is saying that setImageResource(imageResID) is returning null.

How can I set the imageResID to the imageName that's in my asset folder?

Answer 1

If imageResId is zero, that means that getIdentifier cannot find a resource with the name information that you gave.

Reference:

• int getIdentifier (String name, String defType, String defPackage)

That's the root cause of the problem. What happens after that is just "consequences" of the earlier error.

Solution: find out why the resource identifier lookup fails.

• Have you got the name wrong?
• The defType ?
• The defPackage ?
• Is the image resource there?
• Is it in the right place?