setBannerListener method
设置广告Listener:adUnitId 设置后只返回指定广告位相关回调(可选)
Implementation
setBannerListener(TPBannerAdListener listener, {String adUnitId = ""}) {
if (adUnitId.isNotEmpty) {
TPListenerManager.bannerAdListenerMap[adUnitId] = listener;
} else {
TPListenerManager.bannerAdListener = listener;
}
}