showAd method

@protected Future<void> showAd(String methodName, dynamic placementId)

展示广告的通用逻辑

Implementation

@protected
Future<void> showAd(String methodName, placementId) {
  return _channel.invokeMethod(methodName, {
    'ad_unit_id': adUnitId,
    'request_id': requestId,
    'placement_id': placementId,
  });
}