How To Prevent The Default WebView Error Page and Show Alert Dialog in Android

Remove Web Page Not Available Default WebView Error Page in Android

public class MyWebViewClient extends WebViewClient {

        @Override
        public void onReceivedError(WebView view, int errorCode,
                String description, String failingUrl) {
            //To Prevent  Web page not available
            if (errorCode == -2) {
            view.loadData("", "", null);
            //To Show Alert Dialog
//SplashScreenActivity.class is the Launcher Activity
 // In Case of Frament instead of Activity Replace ClassName.this and getApplicationContext() with getActivity()       
 
AlertDialog.Builder builder = new AlertDialog.Builder(ClassName.this);
            builder.setCancelable(false);
            builder.setTitle(Html.fromHtml("<font color='#7F02AE'><b>Star Cineplex</b></font>"));
            builder.setMessage(Html.fromHtml("<font color='#120049'>Your data services are not working.Please check your data services.</font>"));
            builder.setPositiveButton(Html.fromHtml("<font color='#7F02AE'><b>OK</b></font>"), new DialogInterface.OnClickListener() {

                @Override
                public void onClick(DialogInterface dialog, int which) {
                       //SplashScreenActivity.class is your Launcher Activity
 // In Case of Fragment instead of Activity Replace getApplicationContext()  with getActivity()
                 
  Intent intent = new Intent(getApplicationContext(), SplashScreenActivity.class);
                        intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
                        intent.putExtra("EXIT", true);
                        startActivity(intent);
            
                                  
                   
                }
            });
                   AlertDialog alert=builder.create();
            alert.show();

Now at OnCreate of the Launcher Activity(eg. SplashScreenActivity.class)

@Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.loading_image_mn);
        //To exit
        if (getIntent().getBooleanExtra("EXIT", false)) {
            SplashScreenActivity.this.finish();
            System.exit(0);
        }
To Get:      
      
                                       

In Stead Of: