Android and getting a view with id cast as a string

Question

In the Java code of an Android project if you want the reference for a view resource you can do something like:

View addButton = findViewById(R.id.button_0);         


        

Answer 1

int resID = getResources().getIdentifier("button_%i",
    "id", getPackageName());
View addButton = findViewById(resID);

where %i is replaced by some valid index.

The getResources() method belongs to the Context class, so you can use that directly from an Activity. If you are not inside an activity, then use a context to access: (myCtxt.getResources()).