Android access to resources outside of activity

Question

I would like to know - are there ways to access android resources and/or assets files (or files from any other folder) outside of an Activity (without passing context

Answer 1

If the folders are included in the Project Build Path, you can use ClassLoader access files under them outside the android.content.Context, for instance, from a POJO (in case if you don't want to pass a reference of android.content.Context):

String file = "res/raw/test.txt";
InputStream in = this.getClass().getClassLoader().getResourceAsStream(file);

• The res folder is included into Project Build Path by default by all Android SDK version so far.
• The assets folder was included into Project Build Path by default before Android SDK r14.

To add folders into Project Build Path, right click your project -- Build Path -- Configure Build Path, add your folder (for example, assets if using later SDK version) as a Source folder in build path.

Check out the similar question I answered before at here.

Answer 2

Android framework when compile your app create static class call:

your.namespace.project.R

you can statically call this class like:

your.namespace.project.R.string.my_prop

this.context.findViewById(your.namespace.project.R.id.my_id_prop);

---

Maybe you can access dynamic resources this way:

Resources res = this.context.getResources();
int id = res.getIdentifier("bar"+Integer.toString(i+1), "id", this.context.getPackageName());