issues make a persistent object in Objective C
- by oden
Attempting to make a NSObject called 'Person' that will hold the login details for my application (nothing to fancy). The app is made of a navigation controller with multiple table views but I am having issues sharing the Person object around.
Attempted to create a static object like this:
+ (Person *)sharedInstance {
static Person *sharedInstance;
@synchronized(self) {
if(!sharedInstance)
sharedInstance = [[Person alloc] init];
return sharedInstance;
}
return nil;
}
And here is the header
// Person.h
#import <Foundation/Foundation.h>
@interface Person : NSObject {
NSString *fullName;
NSString *firstName;
NSString *lastName;
NSString *mobileNumber;
NSString *userPassword;
}
@property(nonatomic, retain) NSString *fullName;
@property(nonatomic, retain) NSString *firstName;
@property(nonatomic, retain) NSString *lastName;
@property(nonatomic, retain) NSString *mobileNumber;
@property(nonatomic, retain) NSString *userPassword;
+ (Person *)sharedInstance;
-(BOOL) setName:(NSString*) fname;
-(BOOL) setMob:(NSString*) mnum;
-(BOOL) setPass:(NSString*) pwd;
@end
This object setters and getters are needed in different parts of the application. I have been attempting to access them like this
Person * ThePerson = [[Person alloc] init];
ThePerson = nil;
NSString * PersonsName;
PersonsName = [[Person sharedInstance] firstName];
Everything works well at the login screen but it dies at the next use. usually EXC_BAD_ACCESS (eek!).
Clearly I am doing something very wrong here. Is there an easier way to share objects between different a number view controllers (both coded and xib)?
