Adview Size Smart_Banner broke when change orientation
<p>I'm facing a problem that happen when I change orientation screen, the smart_banner doesn't refreshing.</p>

<p>I search about and smart_banner should automatically refresh the banner's size, but they aren't doing this and I can't figure out why.</p>

<p><strong>EDIT: HOW I SOLVE THE PROBLEM</strong></p>

<p>I just remove, re-bind and re-add my Adview through the code on onConfigurationChanged():</p>

<pre><code>@Override
    public void onConfigurationChanged(Configuration newConfig) {
        super.onConfigurationChanged(newConfig);
        // Remove the ad keeping the attributes
        AdView ad = (AdView) findViewById(R.id.ad_view_home);
        RelativeLayout.LayoutParams lp = (RelativeLayout.LayoutParams) (ad != null ? ad.getLayoutParams() : null);
        RelativeLayout parentLayout = (RelativeLayout) (ad != null ? ad.getParent() : null);
        if (parentLayout != null) {
            parentLayout.removeView(ad);
        }

        // Re-initialise the ad
        mAdView.destroy();
        mAdView = new AdView(this);
        mAdView.setAdSize(com.google.android.gms.ads.AdSize.SMART_BANNER);
        mAdView.setAdUnitId(getString(R.string.banner_ad_unit_id_home));
        mAdView.setId(R.id.ad_view_home);
        mAdView.setLayoutParams(lp);
        if (parentLayout != null) {
            parentLayout.addView(mAdView);
        }

        // Re-fetch add and check successful load
        AdRequest adRequest = new AdRequest.Builder()
                .addTestDevice(AdRequest.DEVICE_ID_EMULATOR)
                .addTestDevice(getString(R.string.device_id_test1))
                .build();
        mAdView.loadAd(adRequest);
        mAdView.setAdListener(new AdListener() {
            @Override
            public void onAdLoaded() {
                super.onAdLoaded();
                Utils.setLayoutVisible(mAdView);
            }

            @Override
            public void onAdFailedToLoad(int i) {
                super.onAdFailedToLoad(i);
                Utils.setLayoutInvisible(mAdView);
            }
        });
    }
</code></pre>

<p>AndroidManifest.xml:</p>

<pre><code> &lt;activity
        android:name="com.google.android.gms.ads.AdActivity"
        android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize"
        android:theme="@android:style/Theme.Translucent" /&gt;
</code></pre>

<p>I'm setup adview in XML:</p>

<pre><code>    &lt;RelativeLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:ads="http://schemas.android.com/apk/res-auto"
        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="br.com.adley.myseriesproject.activities.HomeActivity"&gt;
        &lt;content here...&gt;
        &lt;com.google.android.gms.ads.AdView
            android:id="@+id/ad_view_home"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_alignParentBottom="true"
            ads:adSize="SMART_BANNER"
            ads:adUnitId="@string/banner_ad_unit_id_search_show"/&gt;
    &lt;/RelativeLayout&gt;
</code></pre>

<p>In acitivy, I setup like this:</p>

<pre><code>@Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_home);
        activateToolbarWithNavigationView(HomeActivity.this);

        //Ad Config
        // Initialize the Mobile Ads SDK.
        MobileAds.initialize(this, getString(R.string.application_id_ad));

        // Gets the ad view defined in layout/ad_fragment.xml with ad unit ID set in
        // values/strings.xml.
        mAdView = (AdView) findViewById(R.id.ad_view_home);

        // Create an ad request. Check your logcat output for the hashed device ID to
        // get test ads on a physical device. e.g.
        // "Use AdRequest.Builder.addTestDevice("ABCDEF012345") to get test ads on this device."
        mAdRequest = new AdRequest.Builder()
                .addTestDevice(AdRequest.DEVICE_ID_EMULATOR)
                .addTestDevice(getString(R.string.device_id_test1))
                .build();

        // Start loading the ad in the background.
        mAdView.loadAd(mAdRequest);
        mAdView.setAdListener(new AdListener() {
            @Override
            public void onAdLoaded() {
                super.onAdLoaded();
                Utils.setLayoutVisible(mAdView);
            }

            @Override
            public void onAdFailedToLoad(int i) {
                super.onAdFailedToLoad(i);
                Utils.setLayoutInvisible(mAdView);
            }
        });

        // Tabs Setup
        TabLayout tabLayout = (TabLayout) findViewById(R.id.tab_layout);
        final ViewPager viewPager = (ViewPager) findViewById(R.id.home_pager);
        if (tabLayout != null) {
            tabLayout.addTab(tabLayout.newTab().setText(getString(R.string.favorites_label_fragment)));
            tabLayout.addTab(tabLayout.newTab().setText(getString(R.string.air_today_label_fragment)));
            tabLayout.setTabGravity(TabLayout.GRAVITY_FILL);
            final HomePageAdapter adapter = new HomePageAdapter
                    (getSupportFragmentManager(), tabLayout.getTabCount());
            if (viewPager != null) {
                viewPager.setAdapter(adapter);
                viewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(tabLayout));
                tabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
                    @Override
                    public void onTabSelected(TabLayout.Tab tab) {
                        viewPager.setCurrentItem(tab.getPosition());
                    }

                    @Override
                    public void onTabUnselected(TabLayout.Tab tab) {

                    }

                    @Override
                    public void onTabReselected(TabLayout.Tab tab) {

                    }
                });
            }
        }
    }

    @Override
    protected void onRestart() {
        super.onRestart();
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_home_settings, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        int id = item.getItemId();
        if (id == R.id.action_refresh) {
            return false;
        }
        return true;
    }
</code></pre>

<p>And here is my gradle:</p>

<pre><code>apply plugin: 'com.android.application'

    android {
        compileSdkVersion 23
        buildToolsVersion "23.0.3"

        defaultConfig {
            applicationId "br.com.adley.myseriesproject"
            minSdkVersion 17
            targetSdkVersion 23
            versionCode 7
            versionName "Beta 5.0"
        }
        buildTypes {
            release {
                minifyEnabled false
                proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
            }
        }
    }

   dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:appcompat-v7:23.4.0'
    compile 'com.android.support:recyclerview-v7:23.4.0'
    compile 'com.android.support:cardview-v7:23.4.0'
    compile 'com.android.support:design:23.4.0'
    compile 'com.squareup.picasso:picasso:2.5.2'
    compile 'org.ini4j:ini4j:0.5.4'
    compile 'jp.wasabeef:picasso-transformations:2.1.0'
    compile 'com.google.firebase:firebase-core:9.0.0'
    compile 'com.google.firebase:firebase-ads:9.0.0'
    // http://mvnrepository.com/artifact/com.balysv/material-ripple
    compile group: 'com.balysv', name: 'material-ripple', version: '1.0.2'

}

    apply plugin: 'com.google.gms.google-services'
</code></pre>