How To Add Data To App To Test Core Data Model

I have some discussion in this question regarding my core data model objects, etc : How To Achieve This Using Core Data

I want to know if and how I can add data to my App Delegate to mock the data that users will input into the app. I can then setup all the tableviews and views that use core data and make sure everything 开发者_运维知识库is working and hooking up properly.

Then once everything is all set, I can remove this data and switch it to input data from the user.

Can anyone help with this? Thanks!

You need to create a Data class where you can set the properties of variables or in your case arrays (for displaying data in UITableView). Implement a class method in data class which checks that object has been instantiated or not. If not, it does that. It is something like this :

//DataClass.h    

@interface DataClass : NSObject {  

NSMutableArray *nameArray;  
NSMutableArray *placeArray;     

}  
@property(nonatomic,retain)NSMutableArray *nameArray;  
@property(nonatomic,retain)NSMutableArray *placeArray;  
+(DataClass*)getInstance;  
@end  


//DataClass.m  
@implementation DataClass  
@synthesize nameArray;  
@synthesize placeArray;  
static DataClass *instance =nil;  
+(DataClass *)getInstance  
{  
    @synchronized(self)  
    {  
        if(instance==nil)  
        {  

            instance= [DataClass new];  
        }  
    }  
    return instance;  
}  

Now in your view controller you need to call this method as :

DataClass *obj=[DataClass getInstance];  

And use the arrays.
This way you can assign data without disturbing AppDelegate, which is a good practice.