GoogleMobileAds Framework Reference
    
    
      
    
    
      
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            GADSignal
              
                
                  
@interface GADSignal : NSObject
                 
               
            A signal that can be used as input in a server-to-server ad request.
          
          
            
              
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                        Signal string used in a server-to-server ad request. 
 
                        Declaration
                          Swift var signal: String { get }
 
 
                          Objective-C @property (nonatomic, readonly, nonnull) NSString *signalString;
 
 
 
 
             
              
              
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                        Unavailable. An instance of this class will be returned when generating a signal. 
 
                        Declaration
                          Objective-C - (nonnull instancetype)init;
 
 
 
 
           
        
      
     
  
  
  
    
  
 
  
    
    
      
       
    
    
  
  
  Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.
  Last updated 2025-08-20 UTC.
  
  
  
    
      [null,null,["Last updated 2025-08-20 UTC."],[],["GADSignal is a class providing a signal string for server-to-server ad requests.  The key attribute is `signalString`, a read-only string used as input in the ad request.  Instances of GADSignal are not directly created via initialization; instead, they are returned when a signal is generated. The `init` method for direct initialization is therefore unavailable.\n"]]