How to access a variable from inner class

Question

 //MainClass.m 

 @interface InnerClass : NSObject{

 }
 @end

 @implementation InnerClass

 -(void)run{
      while(isActive){//want to access this variable which defined in MainClass
      //do something
      }
 }

 @end

 @interface MainClass : NSObject{
      BOOL isActive;
 }
 @end

 @implementation MainClass


 @end

I have MainClass and it has an inner class (InnerClass). I want to access the boolean type variable (isActive) defined in MainClass class from the inner class. What I am trying to do is that the inner class will run on a separate thread and will keep checking the isActive variable on the main class and if isActive is false then it will stop running the new thread.. Thanks in advance...

Answer 1

Objective-C doesn't have inner classes. Consider making isActive a property of MainClass, give InnerClass a pointer to an instance of MainClass, and let InnerClass simply access the property.