我正在尝试实施AdMob Banner 广告 . 测试ID工作正常 . 但对于我的广告ID，它显示了在logcat下发布的错误 .

主要活动

MobileAds.initialize(this, "MY_APP_ID");
mAdView = findViewById(R.id.adView);
AdRequest adRequest = new AdRequest.Builder().build();
mAdView.loadAd(adRequest);

XML

<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"
    ads:adSize="SMART_BANNER"
    ads:adUnitId="MY_AD_ID" />

表现

<meta-data
        android:name="com.google.android.gms.ads.APPLICATION_ID"
        android:value="MY_APP_ID"/>

PROJECT.GRADLE

repositories {
    google()
    jcenter()
    maven {
        url "https://maven.google.com"
    }
}

APP.GRADLE

implementation 'com.google.android.gms:play-services-ads:15.0.1'

logcat的

10-10 15：47：21.430 29883-30587 /？电子广告：等待未来出错 . java.util.concurrent.ExecutionException：com.google.android.gms.ads.internal.util.future.af.get中的java.util.concurrent.TimeoutException（：com.google.android.gms @ 14366007 @ 14.3.66 （020304-213742215）：18）在com.google.android.gms.ads.internal.util.future.ga(:com.google.android.gms @ 14366007 @ 14.3.66（020304-213742215）：11）at com.google.android.gms.ads.internal.request.service.ca(:com.google.android.gms @ 14366007 @ 14.3.66（020304-213742215）：36）com.google.android.gms.ads .internal.request.service.ca（：com.google.android.gms @ 14366007 @ 14.3.66（020304-213742215）：169）at com.google.android.gms.ads.internal.request.service.f . run（：com.google.android.gms @ 14366007 @ 14.3.66（020304-213742215）：1）at java.util.concurrent.Executors $ runnableAdapter.call（Executors.java:422）at java.util.concurrent . java中的java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1112）中的FutureTask.run（FutureTask.java:237）java.util.concurrent.ThreadPoolExecutor $ Worker.run（ThreadPoolExecutor.java:587） . lang.Thread.run（Thread.java:818）由java.util上的com.google.android.gms.ads.internal.util.future.m.run（未知来源）引起的：java.util.concurrent.TimeoutException .concurrent.Executors $ RunnableAdapter.call（Executors.java:422）at java.util.concurrent.FutureTask.run（FutureTask.java:237）at java.util.concurrent.ScheduledThreadPoolExecutor $ ScheduledFutureTask.access $ 201（ScheduledThreadPoolExecutor.java： 152）at java.util.concurrent.cheduledThreadPoolExecutor $ ScheduledFutureTask.run（ScheduledThreadPoolExecutor.java:265）java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1112）at java.util.concurrent.ThreadPoolExecutor $ Worker.run （ThreadPoolExecutor.java:587）at java.lang.Thread.run（Thread.java:818)10-10 15:47:22.280 13964-13979 / com.ashleytobeybuttons.whosyourdaddyboy I / Ads：广告服务器没有填充 . 10-10 15：47：22.300 13964-13964 / com.ashleytobeybuttons.whosyourdaddyboy W / Ads：无法加载广告：3

java android admob ads