我在android studio中创建了一个基本的应用程序，看看我是否可以展示admobs广告。在consructors中有两个广告，其中一个是横幅，第二个是插页式广告。如果我只使用一个广告代码来执行应用程序，无论是横幅广告还是插页式广告，都没有问题，但如果我执行下面的广告，则会抛出许多错误，其中一个是
`Caused by: java.lang.IllegalStateException: The ad size and ad unit ID must be set before loadAd is called.`
java代码：
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
reklamGoster = (Button)findViewById(R.id.btn_1);
reklamYukle = (Button)findViewById(R.id.btn_2);
mInterstitialAd = new InterstitialAd(this);
mInterstitialAd.setAdUnitId("ca-app-pub-842323422342342342342343245163920/1234233248096");
AdRequest adRequestInter = new AdRequest.Builder().build();
mInterstitialAd.setAdListener(new AdListener() {
@Override
public void onAdLoaded() {
mInterstitialAd.show();
Toast.makeText(getApplicationContext(), "Reklam Yüklendi.", Toast.LENGTH_LONG).show();
reklamGoster.setText("Reklam GösterRR");
reklamGoster.setEnabled(true);
}
@Override
public void onAdFailedToLoad(int errorCode) { //Geçiş Reklam Yüklenemediğinde Çalışır
Toast.makeText(getApplicationContext(), "Reklam Yüklenirken Hata Oluştu.", Toast.LENGTH_LONG).show();
reklamGoster.setText("Reklam Yüklenemedi"+errorCode);
reklamGoster.setEnabled(false);
mInterstitialAd.show();
}
});
mInterstitialAd.loadAd(adRequestInter);
mAdView = (AdView) findViewById(R.id.adView);
AdRequest adRequest = new AdRequest.Builder()
.build();
mAdView.loadAd(adRequest);
}
}
完成错误：
06-26 11:56:23.155 5821-5821/com.example.c0b4n.myapplication E/dalvikvm: Could not find class 'android.os.PersistableBundle', referenced from method com.example.c0b4n.myapplication.MainActivity.access$super
06-26 11:56:23.165 5821-5821/com.example.c0b4n.myapplication E/dalvikvm: Could not find class 'android.os.PersistableBundle', referenced from method com.example.c0b4n.myapplication.MainActivity.access$super
06-26 11:56:23.165 5821-5821/com.example.c0b4n.myapplication E/dalvikvm: Could not find class 'android.media.session.MediaController', referenced from method com.example.c0b4n.myapplication.MainActivity.access$super
06-26 11:56:23.165 5821-5821/com.example.c0b4n.myapplication E/dalvikvm: Could not find class 'android.widget.Toolbar', referenced from method com.example.c0b4n.myapplication.MainActivity.access$super
06-26 11:56:23.185 5821-5821/com.example.c0b4n.myapplication E/dalvikvm: Could not find class 'android.app.ActivityManager$TaskDescription', referenced from method com.example.c0b4n.myapplication.MainActivity.access$super
06-26 11:56:23.195 5821-5821/com.example.c0b4n.myapplication E/dalvikvm: Could not find class 'android.app.SharedElementCallback', referenced from method com.example.c0b4n.myapplication.MainActivity.access$super
06-26 11:56:23.195 5821-5821/com.example.c0b4n.myapplication E/dalvikvm: Could not find class 'android.os.PersistableBundle', referenced from method com.example.c0b4n.myapplication.MainActivity.access$super
06-26 11:56:23.215 5821-5821/com.example.c0b4n.myapplication E/dalvikvm: Could not find class 'android.app.SharedElementCallback', referenced from method com.example.c0b4n.myapplication.MainActivity.access$super
06-26 11:56:23.235 5821-5821/com.example.c0b4n.myapplication E/dalvikvm: Could not find class 'android.app.assist.AssistContent', referenced from method com.example.c0b4n.myapplication.MainActivity.access$super
06-26 11:56:23.235 5821-5821/com.example.c0b4n.myapplication E/dalvikvm: Could not find class 'android.view.SearchEvent', referenced from method com.example.c0b4n.myapplication.MainActivity.access$super
06-26 11:56:23.245 5821-5821/com.example.c0b4n.myapplication E/dalvikvm: Could not find class 'android.os.PersistableBundle', referenced from method com.example.c0b4n.myapplication.MainActivity.access$super
06-26 11:56:24.745 5821-5821/com.example.c0b4n.myapplication E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.c0b4n.myapplication, PID: 5821
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.c0b4n.myapplication/com.example.c0b4n.myapplication.MainActivity}: java.lang.IllegalStateException: The ad size and ad unit ID must be set before loadAd is called.
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2195)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
at android.app.ActivityThread.access$800(ActivityThread.java:135)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5017)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.IllegalStateException: The ad size and ad unit ID must be set before loadAd is called.
at com.google.android.gms.ads.internal.client.zzz.zzda(Unknown Source)
at com.google.android.gms.ads.internal.client.zzz.zza(Unknown Source)
at com.google.android.gms.ads.BaseAdView.loadAd(Unknown Source)
at com.google.android.gms.ads.AdView.loadAd(Unknown Source)
at com.example.c0b4n.myapplication.MainActivity.onCreate(MainActivity.java:61)
at android.app.Activity.performCreate(Activity.java:5231)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245)
at android.app.ActivityThread.access$800(ActivityThread.java:135)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5017)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
at dalvik.system.NativeStart.main(Native Method)
在结论中，请帮助：）