// called when an ad is loaded
public void onPrerollAdLoaded(View prerollAd);
 
// called when there is no ad
Public void onPrerollAdFailed(View prerollAd,LVDOAdRequest.LVDOErrorCode errorCode
);
 
// called when an ad is clicked
public void onPrerollAdClicked(View prerollAd);
 
// called when an ad is completed
public void onPrerollAdCompleted(View prerollAd);
 
// called when the main content is prepared and ready to play
public void onPrepareMainContent(MediaPlayer player);
 
// called when an error occurred while main content was playing
public void onErrorMainContent(MediaPlayer player, int code);
 
// called when playing of the main content is completed
public void onCompleteMainContent(MediaPlayer player);