Global variables for iOS development

In ios development, global variables are set and called as follows: In the AppDelegate. h file, set global variables:

 
 


  
  
@ Interface *** AppDelegate {

  
  
NSString * myName;

  
  
}

  
  
@ Property (nonatomic, retain) NSString * myName;

  
  
@ End

 
 

Implement the global variable in the AppDelegate. m file: @ synthesize myName; if called on the CallBack page, include the AppDelegate. h file in CallBack. m and define a proxy instance, as shown below:

 
 


  
  
# Import "AppDelegate. h"

  
  
In-void )****{

  
  
AppDelegate * myDelegate = [[UIApplication sharedApplication] delegate];

  
  
MyDelegte. myName = @" 123 ";

  
  
}