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In .NET land I would normally query the database and populate a generic List kind of collection. Then the app would use this.
In Android land I have been reading about DB access and use in apps. Why do most of the docs show the use of a cursor and use of constants to access it? Is this to save on resources perhaps?
Exactly. + performance.
The general rule is to avoid creating objects w/o necessity as you are limited on memory, cpu power (and resulting battery life) and garbage collection is rather expensive.