AdBlock, Android WebView Playing FullScreen, WebView Adblock, WebView Tutoarial

WebView AdBlock android | Block ads when using WebView in android | Adblock for WebView

@MonsterTechnoJune 13, 2020August 1, 2020

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In this post, we are going to learn how we can block ads in webview as browser extensions done in the browser.

When I get the idea on blocking ads in webview that time I search a lot on the internet but did not find any and then I think to make one for the internet and I started coding and find that the whole thing is too big and complex to get understand for everyone and then I think to build a library so everyone can use this easily with some minimum line of codes.

IT’S MY FIRST LIBRARY SO MAYBE IT HAS SOME BUGS IN IT SO IF YOU FACE ANY ISSUE THEN GO AND MAKE AN ISSUE IN THE GITHUB.

So without much-talking let’s start

Step 1

Copy the below code and add it to your project-level build file.

allprojects {
		repositories {
			...
			maven { url 'https://jitpack.io' }
		}
	}

Step 2

Now copy the below code and past in your app-level build file where you add the dependency.

dependencies {
     implementation 'com.github.MonsterTechnoGits:WebViewAdblock:1.1'
   }

Now after adding this sync your project.

Step 3

Once you are done adding this now you have to ad one simple webview in your activity just add the webview tag in the layout xml like below.

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    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=".MainActivity">


    <WebView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/webView"/>

</androidx.constraintlayout.widget.ConstraintLayout>

Now fine it by find view by id in the java file.

WebView webView = findViewById(R.id.webView);

Step 3

Now you have to initialize the webview so just add this line of code after finding the view.

new AdBlockerWebView.init(this).initializeWebView(webView);

Step 4

Now we need to add setWebViewClient for the webview

webView.setWebViewClient(new Browser_home());

now need to add a class that handles this webView client and under this class, we need one override method which handles blocking ads.

So copy this full code and past below the onCrete of your java file

private class Browser_home extends WebViewClient {

        Browser_home() {}

        @SuppressWarnings("deprecation")
        @Override
        public WebResourceResponse shouldInterceptRequest(WebView view, String url) {

            return AdBlockerWebView.blockAds(view,url) ? AdBlocker.createEmptyResource() :
                    super.shouldInterceptRequest(view, url);

        }

    }

Here shouldInterceptRequest override method will handle blocking ads.

Step 4

Now add the loadurl in the concrete and pass one URL which you want to load. and add internet permission in manifest and then we are ready to go.

webView.loadUrl("https://www.monstertechnocodes.com");

Now run the application and you are done blocking ads in your webview application.

FULL CODE OF JAVA FILE

public class MainActivity extends AppCompatActivity {

    WebView webView;

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

        webView = findViewById(R.id.webView);
        new AdBlockerWebView.init(this).initializeWebView(webView);
        webView.setWebViewClient(new Browser_home());
        webView.loadUrl("https://www.monstertechnocodes.com");

    }

    private class Browser_home extends WebViewClient {

        Browser_home() {}

        @SuppressWarnings("deprecation")
        @Override
        public WebResourceResponse shouldInterceptRequest(WebView view, String url) {

            return AdBlockerWebView.blockAds(view,url) ? AdBlocker.createEmptyResource() :
                    super.shouldInterceptRequest(view, url);

        }

        @Override
        public void onPageStarted(WebView view, String url, Bitmap favicon) {
            super.onPageStarted(view, url, favicon);
        }

        @Override
        public void onPageFinished(WebView view, String url) {
            super.onPageFinished(view, url);
        }

    }

}

Thanks for your time happy coding 😀

GitHub link -> WebViewAdblock