java - Android Studio 模拟器不显示测试 ADS

Question

您好，我的问题是模拟器没有显示我的测试广告，这是我的代码。

Activity

    package project.chawki.anew.enwproject;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import com.google.android.gms.ads.AdRequest;
import com.google.android.gms.ads.AdView;

public class MainActivity extends AppCompatActivity {
    private AdView mAdView;

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

        mAdView = (AdView) 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="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerHorizontal="true"
            android:layout_alignParentBottom="true"
            ads:adSize="BANNER"
            ads:adUnitId="ca-app-pub-3940256099942544/6300978111">
        </com.google.android.gms.ads.AdView>

Gradle

apply plugin: 'com.android.application'

android {
    compileSdkVersion 26
    buildToolsVersion "26.0.1"
    defaultConfig {
        applicationId "project.chawki.anew.enwproject"
        minSdkVersion 14
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })
    compile 'com.android.support:appcompat-v7:26.+'
    compile 'com.android.support.constraint:constraint-layout:1.0.2'
    testCompile 'junit:junit:4.12'
    compile 'com.google.android.gms:play-services-ads:11.0.4'
}

这是我得到的错误:

08-01 10:00:53.160 3210-3367/com.example.chawkii.myapplication W/Ads: There was a problem getting an ad response. ErrorCode: 0
08-01 10:00:53.160 3210-3210/com.example.chawkii.myapplication W/Ads: Failed to load ad: 0
08-01 10:01:43.200 3210-3210/com.example.chawkii.myapplication E/Ads: JS engine could not be obtained. Cancelling ad request

我正在学习开发，我看不到错误，而且权限也很好，但我的测试广告无法在 Android 设备模拟器中加载。有什么帮助吗？

Answer 1

经过大量研究，我找到了这个错误的解决方案，问题不是代码，实际上是在我的模拟器中，我必须下载最后一个 API 并将 google play 服务更新到最后一个版本，以便我可以看到广告