Google 移动广告实施减慢了 Flutter App

问题描述

我一直在我的 Flutter 应用程序上实施横幅广告，我设法成功显示横幅广告，但我的应用程序运行非常缓慢，以至于它崩溃并关闭。我一直在寻找解决此问题的方法很多，但似乎找不到任何解决方案，尽管很多人都遇到了同样的问题。如果你们能帮助我，我将不胜感激。

我的代码如下：

adhelper.dart

import 'dart:io';
import 'package:google_mobile_ads/google_mobile_ads.dart';

class AdHelper {

  Future<InitializationStatus> initialization;

  AdHelper(this.initialization);

  static String get bannerAdUnitId => Platform.isAndroid
  ? 'ca-app-pub-3940256099942544/6300978111' \\Test ads
  : 'ca-app-pub-3940256099942544/2934735716'; \\Test ads


}

主页.dart

class _MainPageState extends State<MainPage>...

  final Completer<BannerAd> bannerCompleter = Completer<BannerAd>();

...

  BannerAd banner;

...

@override
  void didChangeDependencies(){
    super.didChangeDependencies();
    final adHelper = Provider.of<AdHelper>(context);
    adHelper.initialization.then((status){
      setState(() {
        banner ??= BannerAd(
        adUnitId: AdHelper.bannerAdUnitId,size: AdSize.banner,request: AdRequest(),listener: AdListener(
            onAdLoaded: (Ad ad) {
              print('Ad loaded: $BannerAd.');
              bannerCompleter.complete(ad as BannerAd);
              },onAdFailedToLoad: (Ad ad,LoadAdError error) {
              print('Ad Failed to load: $BannerAd,$error');
              bannerCompleter.completeError(null);
              },onAdOpened: (Ad ad) => print('Ad opened: $BannerAd.'),onAdClosed: (Ad ad) => print('Ad closed: $BannerAd.'),onApplicationExit: (Ad ad) => print('App Exit: $BannerAd.'),),);
          Future<void>.delayed(Duration(seconds: 1),() => banner?.load());
      });
    });
  }

@override
  void dispose() {
    super.dispose();
    banner?.dispose();
    banner = null;
  }

@override
  Widget build(BuildContext context) {
    return FutureBuilder<BannerAd>(
      future: bannerCompleter.future,builder: (BuildContext context,AsyncSnapshot<BannerAd> snapshot) {
        Widget child;

        switch (snapshot.connectionState) {
          case ConnectionState.none:
          case ConnectionState.waiting:
          case ConnectionState.active:
            child = Container();
            break;
          case ConnectionState.done:
            if (snapshot.hasData) {
              child = AdWidget(ad: banner);
            } else {
              child = Text('Error loading $BannerAd');
            }
        }
...

                      if (banner == null)
                        SizedBox(height: 50,)
                      else
                        Container(
                        width: banner.size.width.todouble(),height: banner.size.height.todouble(),child: child,

和我的 main.dart

Future<void> main() async {
  WidgetsFlutterBinding.ensureInitialized();
  final initFuture = MobileAds.instance.initialize();
  final adHelper = AdHelper(initFuture);

....

runApp(
      Provider.value(
          value: adHelper,builder: (context,child) => MyApp(),

解决方法

此问题仅出现在使用 Android 10 或更低版本的设备上，我的设备（使用 android 10）也遇到了同样的问题。我推荐使用这个插件，它为我和很多其他人解决了这个问题。

native_admob_flutter

android android googlemobileads ios ios