无法在android活动中显示广告

Question

我正试图在android活动中实现Admob，但在按照firebase-Admob集成指南所做的所有操作之后，在activity.What中显示广告存在问题，我到目前为止所做的工作是：

AndroidManifest.XML

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

XML

  <com.google.android.gms.ads.AdView
    xmlns:ads="http://schemas.android.com/apk/res-auto"
    android:id="@+id/ad_View"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_centerHorizontal="true"
    android:layout_alignParentBottom="true"
    ads:adSize="SMART_BANNER"
    ads:adUnitId="MY_ADUNIT_ID">
</com.google.android.gms.ads.AdView>

Java

public class Ad extends AppCompatActivity {

AdView ad_View;
AdRequest adRequest;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_ad);

    MobileAds.initialize(this,@string/appid);

    ad_View = findViewById(R.id.adView);

    ad_View = new AdView(this);
    ad_View.setAdSize(AdSize.SMART_BANNER);
    ad_View.setAdUnitId(@string/adunit);

   MobileAds.initialize(this, new OnInitializationCompleteListener() {
        @Override
        public void onInitializationComplete(InitializationStatus initializationStatus) {

        }
    });

    adRequest = new AdRequest.Builder().build();
    ad_View.loadAd(adRequest);
   }
}

谁来告诉我我在做什么。任何帮助都将不胜感激。

谢谢

Answer 1

请尝试从代码中删除这一行，

ad_View = new AdView(this);
ad_View.setAdSize(AdSize.SMART_BANNER);
ad_View.setAdUnitId(@string/adunit);

因为您已经在XML中设置了

所以试试这个，

public class Ad extends AppCompatActivity {

AdView ad_View;
AdRequest adRequest;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_ad);

    MobileAds.initialize(this,@string/appid);

    ad_View = findViewById(R.id.adView);

    MobileAds.initialize(this, new OnInitializationCompleteListener() {
        @Override
        public void onInitializationComplete(InitializationStatus initializationStatus) {

        }
    });

    adRequest = new AdRequest.Builder().build();
    ad_View.loadAd(adRequest);
   }
}

注意:请确保在AndroidManifest.xml中添加互联网权限