Reference resource id from resource

Issue

I have a project with multiple flavors, apple and banana. It references a file that is stored in the raw resource directory. I would prefer to avoid naming each one database.sqlite and instead keep the name relevant to the flavor, apple.sqlite and banana.sqlite. In my code, I have a line that reads as

getResources().openRawResource(R.raw.apple);

Is it possible to create an integer resource that could essentially link to the right id, or would I be better off making a class in each flavor that would have the link to it?

Solution

You can create dedicated source sets for build types, product flavors (such as apple and banana), and build variants. You can create resource aliases, to give a resource another identifier. You should be able to mash these up to get what you want.

I assume, from your question, that you have apple/res/raw/apple.sqlite and banana/res/raw/banana.sqlite in your project. If so, then:

• Create apple/res/values/ids.xml, and in there have <item type="raw" name="whatever">@raw/apple</item>

• Create banana/res/values/ids.xml, and in there have <item type="raw" name="whatever">@raw/banana</item>

• Use R.raw.whatever to identify this resource in your code in main

(where you can replace whatever with, like, whatever)

Here, you are setting up a common alias (whatever) for the resource, pointing the flavor-specific definition of the alias to the flavor-specific resource.

Answered By - CommonsWare