Storing global objects in IOS apps?

Question

I am working on an ios app in which in the first viewcontroller the user is asked to provide its name gender age and native language. Then i will use those objects during the whole app. So what is the best way to store the objects so they are easilly accessible from all classes?

Answer 1

Create singleton class say MySingletonClass and define your variable. you can access your variable from any class by singleton object.

// MySingleton.h
@interface MySingletonClass : NSObject

{
    //your global variable here
}

// set property for your variable

+ (MySingletonClass*)sharedInstance; // method for getting object of this singleton class

// In MySingleton.m
//synthesize property for your global variable


+ (MySingletonClass*)sharedInstance
{ 

  if ( !sharedInstance)
  {
      sharedInstance = [[UIController alloc] init];

   }
 return sharedInstance;
}

Now in other class you can access this variable. follow this code to access variable define in MySingletonClass

MySingletonClass* sharedInstance = [MySingletonClass sharedInstance]; // get object of MySingletonClass
sharedInstance.yourVariable; // now you can access variable defined in MySingletonClass by this object.

You can also definde global variable in AppDelegate (not recommended ).