按钮可在模拟器上使用,但不能在真实手机上使用

问题描述

我有一个按钮,当它按下时会显示横幅广告,还有一个按钮,当按下时会显示插页广告。在模拟器上一切正常,但是当我在手机上安装apk时,按钮不起作用。没有广告展示。 这是代码

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import com.google.android.gms.ads.AdRequest;
import com.google.android.gms.ads.AdView;
import com.google.android.gms.ads.MobileAds;
import com.google.android.gms.ads.initialization.InitializationStatus;
import com.google.android.gms.ads.initialization.OnInitializationCompleteListener;
import com.google.android.gms.ads.InterstitialAd;

public class MainActivity extends AppCompatActivity {
    AdView mAdView;

    AdRequest adRequest = new AdRequest.Builder().build();

    InterstitialAd mInterstitialAd;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        MobileAds.initialize(this,new OnInitializationCompleteListener() {
            @Override
            public void onInitializationComplete(InitializationStatus initializationStatus) {
            }
        });
        mAdView = findViewById(R.id.adView);

        mInterstitialAd = new InterstitialAd(this);
        mInterstitialAd.setAdUnitId("ca-app-pub-3390312271613671/2240901449");

        Button buttonBanner = (Button) findViewById(R.id.buttonBanner);
        Button buttonIntertitial = (Button) findViewById(R.id.buttonInterstitial);

        buttonBanner.setonClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                mAdView.loadAd(adRequest);
            }
        });

        buttonIntertitial.setonClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                mInterstitialAd.loadAd(new AdRequest.Builder().build());
                if (mInterstitialAd.isLoaded()) {
                    mInterstitialAd.show();
                } else {
                    Log.d("TAG","The interstitial wasn't loaded yet.");
                }
            }
        });

    }
}

这是xml代码

<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <Button
        android:id="@+id/buttonInterstitial"
        android:layout_width="210dp"
        android:layout_height="57dp"
        android:layout_marginEnd="105dp"
        android:layout_marginStart="100dp"
        android:layout_marginTop="45dp"
        android:background="@drawable/bcgrimg"
        android:text="Interstitial ads"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/buttonBanner" />

    <Button
        android:id="@+id/buttonBanner"
        android:layout_width="203dp"
        android:layout_height="57dp"
        android:layout_marginBottom="45dp"
        android:layout_marginEnd="100dp"
        android:layout_marginStart="100dp"
        android:layout_marginTop="130dp"
        android:background="@drawable/bcgrimg"
        android:text="banner ads"
        app:layout_constraintBottom_toTopOf="@+id/buttonInterstitial"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <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"
        android:layout_marginBottom="200dp"
        android:layout_marginEnd="45dp"
        android:layout_marginStart="45dp"
        app:adSize="BANNER"
        app:adUnitId="ca-app-pub-3390312271613671/3145970768"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.333"
        app:layout_constraintStart_toStartOf="parent"></com.google.android.gms.ads.AdView>
</androidx.constraintlayout.widget.ConstraintLayout>

请帮助我。预先感谢

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