我的应用程序最近从谷歌播放中删除，再次提交之后我注意到我从Admob一无所获，因此我尝试在我的测试设备上运行该应用程序，在每个人中我都让测试广告工作得很好但是当我我试图用我的朋友手机查看他们是否能看到广告（从谷歌播放下载的真实应用），我看不到广告，所以广告现在不适合我 . 这是我的代码：

XML

<com.google.android.gms.ads.AdView
    android:id="@+id/adView"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignParentBottom="true"
    android:layout_centerHorizontal="true"
    ads:adSize="BANNER"
    ads:adUnitId="@string/banner_ad_unit_id"></com.google.android.gms.ads.AdView>

Activity ：

mAdView = (AdView) findViewById(R.id.adView);
AdRequest request = new AdRequest.Builder()
        .addTestDevice("AdRequest.DEVICE_ID_EMULATOR")
        .addTestDevice("207B846CF80A463F4B3150638CF7D2D0")
        .addTestDevice("0C3A7B25110E565DF33D48DCFE71ED05")
        .addTestDevice("49C6ED95F28B7F4413E2F118505A8B5B")
        .addTestDevice("74049DAA476D3FA230CF6FDD6D35CDCC")
        .build();
mAdView.loadAd(request);

Androidmanifest:

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="clash.davidbalas.com.deckrandomizer_clashroyale">

    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.INTERNET" />

    <application
        android:allowBackup="true"
        android:icon="@drawable/images"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <meta-data
            android:name="com.google.android.gms.version"
            android:value="@integer/google_play_services_version" />

        <activity
            android:name=".main2"
            android:label="@string/app_name"
            android:theme="@style/AppTheme.NoActionBar">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity
            android:name=".main3"
            android:label="@string/app_name"></activity>
        <activity
            android:name=".main4"
            android:label="@string/app_name"></activity>
        <activity
            android:name="com.google.android.gms.ads.AdActivity"
            android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize"
            android:theme="@android:style/Theme.Translucent" />
    </application>

</manifest>

Admob最近与firebase集成，我必须在app中更改我的代码才能使用它？

logcat的：

07-08 20:03:33.481 22018-22018/com.clash.deckrandomizer I/Ads: Starting ad request.
07-08 20:03:33.481 22018-22018/com.clash.deckrandomizer I/Ads: Use AdRequest.Builder.addTestDevice("207B846CF80A463F4B3150638CF7D2D0") to get test ads on this device.
07-08 20:03:33.541 22018-22018/com.clash.deckrandomizer D/DynamitePackage: Instantiating com.google.android.gms.ads.ChimeraAdManagerCreatorImpl
07-08 20:03:33.541 22018-22018/com.clash.deckrandomizer I/Ads: Starting ad request.
07-08 20:03:33.541 22018-22018/com.clash.deckrandomizer I/Ads: Use AdRequest.Builder.addTestDevice("207B846CF80A463F4B3150638CF7D2D0") to get test ads on this device.
07-08 20:03:33.721 22018-22029/com.clash.deckrandomizer W/Ads: There was a problem getting an ad response. ErrorCode: 0
07-08 20:03:33.721 22018-22018/com.clash.deckrandomizer W/Ads: Failed to load ad: 0
07-08 20:03:33.751 22018-22210/com.clash.deckrandomizer W/Ads: There was a problem getting an ad response. ErrorCode: 0
07-08 20:03:33.751 22018-22018/com.clash.deckrandomizer W/Ads: Failed to load ad: 0
android admob