If i try to integrate Google AdMobs my app crashes

Question

I tried to integrade Google AdMobs into my application.

I wrote that in my XML:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:ads="http://schemas.android.com/apk/res-auto"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent">

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

And this in my MainActivity

@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        AdView adView = (AdView)findViewById(R.id.adView);
        AdRequest adRequest = new AdRequest.Builder().build();
        adView.loadAd(adRequest);

I already integrated

1. compile 'com.google.android.gms:play-services-ads:10.2.0' in my build.gradle
2. <string name="banner_ad_unit_id">*censored*</string> in my string.xml
3. <uses-permission android:name="android.permission.INTERNET" /> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/> in my Manifest.

I think the problem is either in my MainActivity or in my XML.

Why does my app crash?

~Aaron

Answer 1

I think you had not initialized Mobile ads. Add this in onCreate before loading ad...

 MobileAds.initialize(this, "YOUR_ADMOB_APP_ID");