Import the externally prepared SQLite into the project

First, place the SQLite database file under the Resource folder and allow it to be compiled into the project.

Then execute some code in the Appdelegate, where the code encapsulates a helper:

1 #import "RPDBInitializeHelper.h"2 3 @implementationRpdbinitializehelper4 5+ (void) Initializedatabase {6NSString *dbpath = [Nshomedirectory () stringByAppendingPathComponent:@"Documents/db.sqlite"];7     if(![[Nsfilemanager Defaultmanager] Fileexistsatpath:dbpath]) {8NSString *dbresourcepath = [[[NSBundle Mainbundle] ResourcePath] stringByAppendingPathComponent:@"Db.sqlite"];9 [[Nsfilemanager Defaultmanager] Copyitematpath:dbresourcepath topath:dbpath Error:nil];Ten     } One } A  - @end

First, look for the database file under the documents directory of the sandbox and copy the past from the resource file if it does not exist.