Access a image dynamically from res folder android

Question

I have a image in res folder like this

I want to access this one dynamically like this

holder.Viewcover.setImageDrawable(Drawable.createFromPath("R.id." + CoverimgUrl.get(position)));

CoverimgUrl is a list which have two image name one is book_cover & and another is blank_image this array is generated dynamically so how can I set this image from that list

In One word how to access a image dynamically which is in drawable folder and I need get that image name from an array list ?

Answer 1

Resources res = getResources();
String mDrawableName = "image_name";
int resourceId = res.getIdentifier(mDrawableName , "drawable", getPackageName());
Drawable drawable = res.getDrawable(resourceId);
icon.setImageDrawable(drawable );

Answer 2

First Make CoverimgUrl list of integer

List<Integer> CoverimgUrl =new ArrayList<Integer>();
            CoverimgUrl.add(R.drawable.book_cover);
            CoverimgUrl.add(R.drawable.blank_image);

Then

holder.Viewcover.setImageResource(CoverimgUrl.get(position));

Answer 3

createFromPath expects a path to the file, not it's ID.

You can use the following:

int id = getResources().getIdentifier(CoverimgUrl.get(position), "id", getPackageName()); holder.Viewcover.setImageDrawable(getResources().getDrawable(id));

getIdentifier() gets the ID from the string. When you use the "R" class, it contains static integers for ids. So R.id.some_name is actually an integer, which is the id of the some_name resource.

once you get this integer with getIdentifier, you can use getResources().getDrawable() to get the drawable with the given ID.

Let me know if this works.