Question

q) what is the best method of storing persons complete details i.e.

steve > details contain :name address,dob, other details etc..
john > details contain :name address,dob, other details etc..

and many more records max would be around 200 tops.

now i want to display these individually and with the option to add them what is the suggested way?

i had a look at core data,userdefaults and NSFileManager but not sure what would be best way to implement such nested texts for save and load.

Answer 1

if you want to search or query them I would always recommend going with core data from the get go.
You’ll only end up wishing you add gone down that route in a few months and then would have to factor in a migration.
For core data I use https://github.com/magicalpanda/MagicalRecord for new projects, it does most of the heavy lifting for you.

For a recent app I used NSUserDefaults. Basically keeping all my ‘person’ objects as NSDictionaries in an NSArray. This suited the app as the data was low, c100 records in use max.
I could just as easily have used a save to disk method, but as I did’t have any other use for saving small amounts of preference data, it was just a convenience.
(remember, accessing NSUserDefaults brings back all its contents, not just the particular object you are interested in).

Hope this helps.