Tutorial: Nuestro sitio en una aplicación Android 3

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />

<meta-data
            android:name="com.google.android.gms.version"
            android:value="@integer/google_play_services_version" />
<activity
            android:name="com.google.android.gms.ads.AdActivity"
            android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize"
            android:theme="@android:style/Theme.Translucent" />

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.cicklow.webview.MainActivity"
    android:id="@+id/RelConte" >
    
    <RelativeLayout
        android:id="@+id/RelConte2"
        android:layout_width="match_parent"
        android:layout_height="match_parent" >
    <WebView
        android:id="@+id/webView1"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true" />

    <ProgressBar
        android:id="@+id/progressBar1"
        style="?android:attr/progressBarStyleHorizontal"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_alignParentRight="true"
        android:layout_alignParentTop="true" />

	</RelativeLayout>
	
</FrameLayout>

import com.google.android.gms.ads.AdListener;
import com.google.android.gms.ads.AdRequest;
import com.google.android.gms.ads.AdSize;
import com.google.android.gms.ads.AdView;
import com.google.android.gms.ads.InterstitialAd;

import android.app.Activity;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.FrameLayout;
import android.widget.ProgressBar;
import android.widget.RelativeLayout;

	//Declarar variables
	WebView web;
    ProgressBar progressBar;
    private AdView adView;
    InterstitialAd mInterstitialAd;

        //Cargar ADS
		if(getResources().getString(R.string.idADS).length() > 0){
			// Crear adView.
			adView = new AdView(this);
			adView.setAdUnitId(getResources().getString(R.string.idADS));
			adView.setAdSize(AdSize.SMART_BANNER);

			adView.setAdListener(new AdListener() {
				// Implement AdListener
			  [MENTION=42437]over[/MENTION]ride
				public void onAdLoaded() {
					RelativeLayout SView = (RelativeLayout)findViewById(R.id.RelConte2);
					FrameLayout.LayoutParams layoutParams = (FrameLayout.LayoutParams) SView.getLayoutParams();
					layoutParams.setMargins(0, adView.getHeight() + 10, 0, 0);
					SView.setLayoutParams(layoutParams);
				}
			});
	    
			FrameLayout layout = (FrameLayout)findViewById(R.id.RelConte);
			FrameLayout.LayoutParams adsParams =new FrameLayout.LayoutParams(-1, FrameLayout.LayoutParams.WRAP_CONTENT, android.view.Gravity.TOP|android.view.Gravity.CENTER_HORIZONTAL); 

			layout.addView(adView, adsParams);

			// Iniciar una solicitud genérica.
			AdRequest adRequest = new AdRequest.Builder().addTestDevice(AdRequest.DEVICE_ID_EMULATOR).build();

			// Cargar adView con la solicitud de anuncio.
			adView.loadAd(adRequest);
		}

		if(getResources().getString(R.string.idADS2).length() > 0){
			mInterstitialAd = new InterstitialAd(this);
			mInterstitialAd.setAdUnitId(getResources().getString(R.string.idADS2));
			requestNewInterstitial();
        
			mInterstitialAd.setAdListener(new AdListener() {
			  [MENTION=42437]over[/MENTION]ride
				public void onAdClosed() {
					//Si se cierra la publicidad, pedir una nueva (para no mostrar lo mismo)
					requestNewInterstitial();
				}
			});
		}

        web = (WebView) findViewById(R.id.webView1);
        progressBar = (ProgressBar) findViewById(R.id.progressBar1);
        progressBar.setMax(100);
        
        web.setWebViewClient(new myWebClient());
        web.getSettings().setJavaScriptEnabled(true);
        //Sitio web a cargar
        web.loadUrl("http://www.google.com.ar/");

http://depositfiles.com/files/t1undomgf

\WebView\WebView\AndroidManifest.xml:20: error: Error: No resource found that matches the given name (at 'value' with value '@integer/google_play_services_version')

Create a ProGuard Exception

To prevent ProGuard from stripping away required classes, add the following lines in the /proguard-project.txt file:

-keep class * extends java.util.ListResourceBundle {
    protected Object[][] getContents();
}

-keep public class com.google.android.gms.common.internal.safeparcel.SafeParcelable {
    public static final *** NULL;
}

-keepnames @com.google.android.gms.common.annotation.KeepName class *
-keepclassmembernames class * {
    @com.google.android.gms.common.annotation.KeepName *;
}

-keepnames class * implements android.os.Parcelable {
    public static final ** CREATOR;
}