java.lang.IllegalStateException:在调用 loadAd 之前，必须设置广告尺寸和广告单元

Question

我正在开发新闻应用程序，我已经实现了带有数据绑定的adview，但它给出了以下异常

java.lang.IllegalStateException: The ad size and ad unit ID must be set before loadAd is called.
at com.google.android.gms.internal.ads.zzxv.zza(com.google.android.gms:play-services-ads-lite@@19.1.0:82)
at com.google.android.gms.ads.BaseAdView.loadAd(com.google.android.gms:play-services-ads-lite@@19.1.0:15)
at com.google.android.gms.ads.AdView.loadAd(com.google.android.gms:play-services-ads-lite@@19.1.0:20)
at yodgorbek.komilov.musobaqayangiliklari.ui.TopHeadlinesFragment.initializeAds(TopHeadlinesFragment.kt:95)
at yodgorbek.komilov.musobaqayangiliklari.ui.TopHeadlinesFragment.onViewCreated(TopHeadlinesFragment.kt:56)
at androidx.fragment.app.FragmentStateManager.createView(FragmentStateManager.java:322)
at androidx.fragment.app.FragmentManager.moveToState(FragmentManager.java:1185)
at androidx.fragment.app.FragmentManager.moveToState(FragmentManager.java:1354)
at androidx.fragment.app.FragmentManager.moveFragmentToExpectedState(FragmentManager.java:1432)
at androidx.fragment.app.FragmentManager.moveToState(FragmentManager.java:1495)
at androidx.fragment.app.BackStackRecord.executeOps(BackStackRecord.java:447)
at androidx.fragment.app.FragmentManager.executeOps(FragmentManager.java:2167)
at androidx.fragment.app.FragmentManager.executeOpsTogether(FragmentManager.java:1990)
at androidx.fragment.app.FragmentManager.removeRedundantOperationsAndExecute(FragmentManager.java:1945)
at androidx.fragment.app.FragmentManager.execPendingActions(FragmentManager.java:1847)
at androidx.fragment.app.FragmentManager.dispatchStateChange(FragmentManager.java:2621)
at androidx.fragment.app.FragmentManager.dispatchActivityCreated(FragmentManager.java:2569)
at androidx.fragment.app.FragmentController.dispatchActivityCreated(FragmentController.java:247)
at androidx.fragment.app.FragmentActivity.onStart(FragmentActivity.java:541)
at androidx.appcompat.app.AppCompatActivity.onStart(AppCompatActivity.java:201)
at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1392)
at android.app.Activity.performStart(Activity.java:7252)
at android.app.ActivityThread.handleStartActivity(ActivityThread.java:3000)
at android.app.servertransaction.TransactionExecutor.performLifecycleSequence(TransactionExecutor.java:185)
at android.app.servertransaction.TransactionExecutor.cycleToPath(TransactionExecutor.java:170)
at android.app.servertransaction.TransactionExecutor.executeLifecycleState(TransactionExecutor.java:147)
at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:73)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1858)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:201)
at android.app.ActivityThread.main(ActivityThread.java:6820)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:547)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:922)

但是我已经尝试了以下答案 在调用 loadAd 之前必须设置广告尺寸和广告单元 ID，这 广告尺寸和广告单元 ID 必须在加载之前设置广告以编程方式设置时，这个也包括具有数据绑定的 AdView 和来自 StackOverflow 的 https://github.com/firebase/quickstart-android/blob/master/admob/app/src/main/java/com/google/samples/quickstart/admobexample/kotlin/MainActivity.kt 它没有解决我的问题

在我的 XML 文件下方，我在其中实现了广告视图

<data>
<variable
name="adId"
type="String" />
</data>
<androidx.constraintlayout.widget.ConstraintLayout
xmlns:ads="http://schemas.android.com/apk/res-auto"
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">

<androidx.recyclerview.widget.RecyclerView
android:id="@+id/recyclerView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginBottom="56dp"
app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintTop_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<ProgressBar
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/pb"
android:gravity="center"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<com.google.android.gms.ads.AdView
xmlns:ads="http://schemas.android.com/apk/res-auto"
android:id="@+id/adView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
ads:adSize="BANNER"
ads:adUnitId="@{adId}"
ads:layout_constraintTop_toBottomOf="@+id/pb"
ads:layout_constraintBottom_toBottomOf="@+id/pb"/>

</androidx.constraintlayout.widget.ConstraintLayout>

在我的片段类下面

class TopHeadlinesFragment : Fragment() {
private lateinit var binding: FragmentTopHeadlinesBinding

private val viewModel by viewModel<MainViewModel>()

private lateinit var topHeadlinesAdapter: TopHeadlinesAdapter

//3
override fun onCreateView(
inflater: LayoutInflater,
container: ViewGroup?,
savedInstanceState: Bundle?
): View? {
binding =
DataBindingUtil.inflate(inflater, R.layout.fragment_top_headlines, container, false)
binding.lifecycleOwner = this
topHeadlinesAdapter = TopHeadlinesAdapter()
return binding.root
}
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
super.onViewCreated(view, savedInstanceState)
initViewModel()
initializeAds()


}
private fun initViewModel() {
viewModel.sportList.observe(this, Observer { result ->
when (result) {
is Results.Success -> {
val newList = result.data
if (newList != null) {
topHeadlinesAdapter.updateData(newList)
}
binding.recyclerView.adapter = topHeadlinesAdapter
topHeadlinesAdapter.notifyDataSetChanged()
}
}
})
viewModel.showLoading.observe(this, Observer { showLoading ->
pb.visibility = if (showLoading) View.VISIBLE else View.GONE
})
viewModel.loadNews()
}

private fun initializeAds(){
MobileAds.initialize(context)
// adView.adSize = AdSize.BANNER
binding.adId = "my unit id"
val adRequest = AdRequest.Builder().build()
binding.adView.loadAd(adRequest)
}
}

我想知道我到底在哪里犯了错误，我已经尝试了所有 StackOverflow，甚至文档示例它确实解决了我的问题，我尝试使用 kotlin 和 XML 文件以编程方式设置单位 ID 和大小，它也根本不起作用任何提示将不胜感激。

Answer 1

//Admob banner
MobileAds.initialize(this, new OnInitializationCompleteListener()  {
@Override
public void onInitializationComplete(InitializationStatus initializationStatus) {
}
});
mAdView = findViewById(R.id.adView);
AdRequest adRequest = new AdRequest.Builder().build();
mAdView.loadAd(adRequest);
mAdView.setAdListener(new AdListener() {
@Override
public void onAdLoaded() {
super.onAdLoaded();
mAdView.setVisibility(View.VISIBLE);
}
@Override
public void onAdFailedToLoad(int i) {
super.onAdFailedToLoad(i);
mAdView.setVisibility(View.GONE);
}

});

.xml

<com.google.android.gms.ads.AdView
android:id="@+id/adView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_marginTop="10dp"
android:layout_marginBottom="30dp"
android:visibility="gone"
app:adSize="BANNER"
app:adUnitId="@string/ad_unit_id_banner1" />

清单

<meta-data
android:name="com.google.android.gms.ads.APPLICATION_ID"
android:value="@string/app_id"/>
<meta-data
android:name="com.google.android.gms.ads.AD_MANAGER_APP"
android:value="true" />

Answer 2

你可以这样写：

val adRequest = AdRequest.Builder().build()
binding.adId = "my unit id"
binding.adView.loadAd(adRequest)