Future<void> main() async {
WidgetsFlutterBinding.ensureInitialized();
await Firebase.initializeApp();
final initFuture = MobileAds.instance.initialize();
final adState = Adv(initFuture);
FirebaseMessaging.onBackgroundMessage(_firebaseMessagingBackgroundHandler);
await flutterLocalNotificationsPlugin
.resolvePlatformSpecificImplementation<
AndroidFlutterLocalNotificationsPlugin>()
?.createNotificationChannel(channel);
initScreen = await Authenticate().readStorage('initScreen');
print(initScreen);
await Authenticate().writeStorage('initScreen', "true");
runApp(MyApp(
appRouter: AppRouter(),
connectivity: Connectivity(),
drawerBloc: DrawerBloc(DrawerState(NavItem.homepage)),
));
}
这是我的main.dart代码
import 'dart:io';
import 'package:google_mobile_ads/google_mobile_ads.dart';
class Adv {
Future<InitializationStatus> initialization;
Adv(this.initialization);
static String get categoriesNativeAdUnitId {
if (Platform.isAndroid) {
return 'ca-app-pub-3940256099942544/6300978111';
} else if (Platform.isIOS) {
return 'ca-app-pub-3940256099942544/2934735716';
}
throw new UnsupportedError("Unsupported platform");
}
static String get homeNativeAdUnitId {
if (Platform.isAndroid) {
return 'ca-app-pub-3940256099942544/2247696110';
} else if (Platform.isIOS) {
return 'ca-app-pub-3940256099942544/3986624511';
}
throw new UnsupportedError("Unsupported platform");
}
static String get newsPageNativeAdUnitId {
if (Platform.isAndroid) {
return 'ca-app-pub-3940256099942544/2247696110';
} else if (Platform.isIOS) {
return 'ca-app-pub-3940256099942544/3986624511';
}
throw new UnsupportedError("Unsupported platform");
}
static String get blogsBannerAdUnitId {
if (Platform.isAndroid) {
return 'ca-app-pub-3940256099942544/2247696110';
} else if (Platform.isIOS) {
return 'ca-app-pub-3940256099942544/3986624511';
}
throw new UnsupportedError("Unsupported platform");
}
static String get publisherListPageNativeAdUnitId {
if (Platform.isAndroid) {
return 'ca-app-pub-3940256099942544/2247696110';
} else if (Platform.isIOS) {
return 'ca-app-pub-3940256099942544/3986624511';
}
throw new UnsupportedError("Unsupported platform");
}
}
这是我的 adhelper.dart 的代码
class ShowHomeNews extends StatefulWidget {
final List<NewsModel> newsModel;
final int index;
const ShowHomeNews({
Key key,
@required this.newsModel,
this.index,
}) : super(key: key);
@override
_ShowHomeNewsState createState() => _ShowHomeNewsState();
}
class _ShowHomeNewsState extends State<ShowHomeNews> {
int adCountTrack = 0;
bool _isAdLoaded = false;
List<NativeAd> adList = [];
@override
void initState() {
super.initState();
adLoader();
}
adLoader() {
setState(() {
int len = ((widget.newsModel.length) / 4).floor();
for (int i = 0; i < len; i++) {
print(i.toString());
print("i ki vaues:" + i.toString());
adList.add(
NativeAd(
adUnitId: Adv.homeNativeAdUnitId,
factoryId: 'listTile',
listener: AdListener(
onAdLoaded: (_) {
setState(() {
_isAdLoaded = true;
});
},
onAdFailedToLoad: (ad, error) {
// Releases an ad resource when it fails to load
print(
'Ad load failed (code=${error.code} message=${error.message})');
},
),
request: AdRequest())
..load(),
);
}
});
print("AdList size: " + adList.length.toString());
}
@override
Widget build(BuildContext context) {
return RefreshIndicator(
onRefresh: () async => BlocProvider.of<TabbarblocBloc>(context).add(
PageTapped(index: widget.index),
),
child: SingleChildScrollView(
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Padding(
padding: const EdgeInsets.fromLTRB(10, 5, 10, 0),
child: Text(
"Trending",
style: TextStyle(fontWeight: FontWeight.w600),
),
),
Padding(
padding: const EdgeInsets.all(8.0),
child: Container(
height: 200,
child: ListView.builder(
physics: ClampingScrollPhysics(),
primary: false,
itemCount: widget.newsModel.length,
shrinkWrap: true,
scrollDirection: Axis.horizontal,
itemBuilder: (context, index) {
return TrendingTile(
newsModel: widget.newsModel[index],
);
},
),
),
),
Container(
child: ListView.builder(
primary: false,
itemCount: widget.newsModel.length,
shrinkWrap: true,
itemBuilder: (context, index) {
print(widget.newsModel.length);
if (index % 4 == 0 && adCountTrack < adList.length) {
return Padding(
padding: const EdgeInsets.all(8.0),
child: Container(
height: 120.0,
width: 120.0,
decoration: BoxDecoration(
color: whiteTextColor,
borderRadius: BorderRadius.circular(12),
boxShadow: [
BoxShadow(
spreadRadius: 1,
blurRadius: 5.0, // soften the shadow
offset: Offset(
1.0, // Move to right 10 horizontally
2.0, // Move to bottom 10 Vertically
),
color: Colors.grey[350])
],
),
child: AdWidget(
ad: adList[adCountTrack++],
),
),
);
} else if (widget.newsModel[index].views <=
compareTotalViewForGrid) {
return Padding(
padding: const EdgeInsets.all(8.0),
child: NewsTileSmall(
newsModel: widget.newsModel[index],
),
);
} else {
return Padding(
padding: const EdgeInsets.all(8.0),
child: NewsTileBig(
newsModel: widget.newsModel[index],
),
);
}
}),
),
],
),
),
);
}
}
这是我的文件代码，我在其中尝试在列表中显示原生广告，但没有原生广告。显示。
下面我添加了调试控制台日志
D/DynamitePackage(19276): Instantiating com.google.android.gms.ads.ChimeraAdLoaderBuilderCreatorImpl I/Ads
(19276): Use RequestConfiguration.Builder().setTestDeviceIds(Arrays.asList("FA6C491A794C3455DA1F640FE2E82C3A")) to get test ads on this device. I/DynamiteModule(19276): Considering local module com.google.android.gms.ads.dynamite:0 and remote module com.google.android.gms.ads.dynamite:210890500 I/DynamiteModule(19276): Selected remote version of com.google.android.gms.ads.dynamite, version >= 210890500 W/Parcel (19276): **** enforceInterface() expected 'com.google.android.gms.ads.clearcut.IClearcut' but read 'com.google.android.gms.gass.internal.clearcut.IClearcut' I/DynamiteModule(19276): Considering local module com.google.android.gms.ads.dynamite:0 and remote module com.google.android.gms.ads.dynamite:210890500 I/DynamiteModule(19276): Selected remote version of com.google.android.gms.ads.dynamite, version >= 210890500 I/DynamiteModule(19276): Considering local module com.google.android.gms.ads.dynamite:0 and remote module com.google.android.gms.ads.dynamite:210890500 I/DynamiteModule(19276): Selected remote version of com.google.android.gms.ads.dynamite, version >= 210890500 W/Parcel (19276): **** enforceInterface() expected 'com.google.android.gms.ads.clearcut.IClearcut' but read 'com.google.android.gms.gass.internal.clearcut.IClearcut' I/AudioManager(19276): In isSpeakerphoneOn(), calling application: com.indiary.indiary D/DynamitePackage(19276): Instantiating com.google.android.gms.ads.ChimeraAdLoaderBuilderCreatorImpl I/Ads
(19276): Use RequestConfiguration.Builder().setTestDeviceIds(Arrays.asList("FA6C491A794C3455DA1F640FE2E82C3A")) to get test ads on this device. I/AudioManager(19276): In isSpeakerphoneOn(), calling application: com.indiary.indiary I/flutter (19276): 26 D/DynamitePackage(19276): Instantiating com.google.android.gms.ads.ChimeraAdLoaderBuilderCreatorImpl I/Ads
(19276): Use RequestConfiguration.Builder().setTestDeviceIds(Arrays.asList("FA6C491A794C3455DA1F640FE2E82C3A")) to get test ads on this device. I/AudioManager(19276): In isSpeakerphoneOn(), calling application: com.indiary.indiary D/DynamitePackage(19276): Instantiating com.google.android.gms.ads.ChimeraAdLoaderBuilderCreatorImpl /Ads
(19276): Use RequestConfiguration.Builder().setTestDeviceIds(Arrays.asList("FA6C491A794C3455DA1F640FE2E82C3A")) to get test ads on this device. I/AudioManager(19276): In isSpeakerphoneOn(), calling application: com.indiary.indiary 2 I/flutter (19276): 26 D/DynamitePackage(19276): Instantiating com.google.android.gms.ads.ChimeraAdLoaderBuilderCreatorImpl I/Ads
(19276): Use RequestConfiguration.Builder().setTestDeviceIds(Arrays.asList("FA6C491A794C3455DA1F640FE2E82C3A")) to get test ads on this device. I/flutter (19276): 26 I/AudioManager(19276): In isSpeakerphoneOn(), calling application: com.indiary.indiary D/DynamitePackage(19276): Instantiating com.google.android.gms.ads.ChimeraAdLoaderBuilderCreatorImpl I/Ads
(19276): Use RequestConfiguration.Builder().setTestDeviceIds(Arrays.asList("FA6C491A794C3455DA1F640FE2E82C3A")) to get test ads on this device. I/AudioManager(19276): In isSpeakerphoneOn(), calling application: com.indiary.indiary W/pool-30-thread-(19276): type=1400 audit(0.0:6476): avc: granted { execute } for path="/data/data/com.indiary.indiary/app_pccache/5/CCFA22EBAF6E1880534512380E8EF01170FD9593/pcam.jar" dev="dm-14" ino=5090217 scontext=u:r:untrusted_app:s0:c250,c257,c512,c768 tcontext=u:object_r:app_data_file:s0:c250,c257,c512,c768 tclass=file app=com.indiary.indiary 7 I/flutter (19276): 26 E/flutter (19276): [ERROR:flutter/shell/platform/android/platform_view_android_jni_impl.cc(49)] java.lang.IllegalStateException: PlatformView#getView() returned null, but an Android view reference was expected. E/flutter (19276): at io.flutter.plugin.platform.PlatformViewsController.initializePlatformViewIfNeeded(PlatformViewsController.java:717) E/flutter (19276): at io.flutter.plugin.platform.PlatformViewsController.onDisplayPlatformView(PlatformViewsController.java:746) E/flutter (19276): at io.flutter.embedding.engine.FlutterJNI.onDisplayPlatformView(FlutterJNI.java:1195) E/flutter (19276): at android.os.MessageQueue.nativePollOnce(Native Method) E/flutter (19276): at android.os.MessageQueue.next(MessageQueue.java:335) E/flutter (19276): at android.os.Looper.loop(Looper.java:183) E/flutter (19276): at android.app.ActivityThread.main(ActivityThread.java:8010) E/flutter (19276): at java.lang.reflect.Method.invoke(Native Method) E/flutter (19276): at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:631) E/flutter (19276): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:978) E/flutter (19276): F/flutter (19276): [FATAL:flutter/shell/platform/android/platform_view_android_jni_impl.cc(1395)] Check failed: CheckException(env). F/libc (19276): Fatal signal 6 (SIGABRT), code -6 (SI_TKILL) in tid 19276 (indiary.indiary), pid 19276 (indiary.indiary)
我尝试使用 google_mobile_ads sdk 显示谷歌原生广告，我想在列表之间显示 n 个广告，就像在每 4 个项目原生广告应该显示之后一样，但我无法显示它们，我的应用程序崩溃了？
最佳答案
改变
List<Object> adList;
对此:
List<NativeAd> adList = [];
由于您收到空错误，这意味着您正在尝试将 NativeAd 对象添加到您的列表中，但它仍未初始化。
关于flutter - 无法在 listView.builder 中显示原生广告？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/67345072/