CODEWITHSUNDEEP
iosobjective-cclassinstance
Mayankmmmx
Mayankmmmx

Reputation: 115

How to set values to a class without creating an instance of class?

Currently I have 2 ViewController files I want to share common data between, however I want to have a class called GlobalVariables store all of the variables throughout my code. In one of the ViewController files, I want to set the value of a variable (I have created a setVariable method in the GlobalVariables.m file) and from the ViewController, I want to call this method so it sets the variable. How can I do this without creating an instance of GlobalVariables as any changes I make to the instance will not carry over when I create another instance of GlobalVariables in my second ViewController file?

Upvotes: 0

Views: 101

Answers (3)

newacct
newacct

Reputation: 122429

It's unclear what you mean by "set values to a class". There are 3 kinds of variables in Objective-C: global variables, instance variables, and local variables. Local variables are not relevant. If you con't want to create an instance, then instance variables are out. So then you want global variables. They can be set and accessed by any function or method.

Upvotes: 0

Jitendra
Jitendra

Reputation: 5081

Define your varible in AppDelegate. AppDelegate is a Singleton class. And access that variable where you want.

Upvotes: 0

Satish Azad
Satish Azad

Reputation: 2312

Use singleton Design Pattern. It’s an extremely powerful way to share data between different parts of code without having to pass the data around manually. And also it will always be a single instance through out the Application life cycle

Please check this link: Singleton Class

Upvotes: 2

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