小编Bri*_*Tum的帖子

我试图在 a 中动态调用广告listview，但抛出此错误：

If you placed this AdWidget in a list, make sure you create a new instance in the builder function with a unique ad object.
Make sure you are not using the same ad object in more than one AdWidget. 

这是代码

导入包google_mobile_ads

import 'package:google_mobile_ads/google_mobile_ads.dart';

然后实例化包

NativeAd _nativeAd;

final Completer<NativeAd> nativeAdCompleter = Completer<NativeAd>();

我的功能是加载广告

loadAd(){
    _nativeAd = NativeAd(
      adUnitId: "ca-app-pub-3940256099942544/1044960115",
      request: AdRequest(),
      factoryId: 'adFactoryExample',
      listener: AdListener(
        onAdLoaded: (Ad ad) {
          print('$NativeAd loaded.');
          nativeAdCompleter.complete(ad as NativeAd); …