Android data storage - File vs SQLite

Question

I am developing an application that periodically sends information to an external server. I make a local copy of the data being sent, for backup purposes.

What is t

Answer 1

I have no idea in terms of battery life directly but one criteria would be which is easier to manage? Fewer operations to manage the data would mean fewer CPU cycles and in turn longer battery life.

I would say the SQLite option is easier. You can put a date column in the SQLite table which stores your data which makes removing old submissions which you don't need any more very easy - and all handled via the native SQL library. Managing a whole load of file - or worse a single file - with your own Java code would be much more work.

Additionally, you can write data the to database and just forget about it until you need to read it again. If you're storing data in files, you'll need to work out when you should be reading and writing files in terms on the Android application life cycle. If you're worried about battery you probably wouldn't want to write files more often than you should, and cache data in memory, but you'd need to make sure you didn't lose any data when your app is Paused or Destroyed. In my opinion it's much easier to use an SQLite database and not worry about any of this.