Handle callbacks from background thread

This page covers the instructions to handle callbacks from a background thread.

GMA Next-Gen SDK runs ad load and event callbacks on a background thread. When performing UI-related operations within these callbacks, ensure you explicitly dispatch them to the UI thread.

The following examples show a toast after an ad loads:

Kotlin

  adView 
 . 
 loadAd 
 ( 
  
 adRequest 
 , 
  
 object 
  
 : 
  
 AdLoadCallback<BannerAd> 
  
 { 
  
 override 
  
 fun 
  
 onAdLoaded 
 ( 
 ad 
 : 
  
 BannerAd 
 ) 
  
 { 
  
 // Show a toast on the UI thread. 
  
 runOnUiThread 
  
 { 
  
 Toast 
 . 
 makeText 
 ( 
 activity 
 , 
  
 "Ad loaded." 
 , 
  
 Toast 
 . 
 LENGTH_SHORT 
 ). 
 show 
 () 
  
 } 
  
 } 
  
 }, 
 ) 
 

Java

  adView 
 . 
 loadAd 
 ( 
  
 adRequest 
 , 
  
 new 
  
 AdLoadCallback<BannerAd> 
 () 
  
 { 
  
 @Override 
  
 public 
  
 void 
  
 onAdLoaded 
 ( 
 @NonNull 
  
 BannerAd 
  
 ad 
 ) 
  
 { 
  
 // Show a toast on the UI thread. 
  
 runOnUiThread 
 (() 
  
 - 
>  
 Toast 
 . 
 makeText 
 ( 
 activity 
 , 
  
 "Ad loaded." 
 , 
  
 Toast 
 . 
 LENGTH_SHORT 
 ). 
 show 
 () 
  
 ); 
  
 } 
  
 }); 
 
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