在横幅广告中onAdImpression()不再被调用。mAdview=findViewById(R.id.bannertest);mAdview.setAdListener(newAdListener(){@OverridepublicvoidonAdClosed(){super.onAdClosed();Log.w(TAG,"onAdClosed:");}@OverridepublicvoidonAdFailedToLoad(inti){super.onAdFailedToLoad(i);Log.w(TAG,"onAdFailedToLoad:");}@Overridepublic