title: Unable to share on Whatsapp from my WebView . Getting The webpage at whatsapp://send?text= could not be load because net::ERR_UNKNOWN_URL_SCHEME
body: <p>Getting Error while sharing a news on whatsapp using my Webview App</p>
  
  <p>**package com.agraleaks.imgauravanimator;</p>
  
  <pre><code>import android.app.Notification;
  import android.app.NotificationManager;
  import android.app.PendingIntent;
  import android.app.ProgressDialog;
  import android.content.BroadcastReceiver;
  import android.content.Context;
  import android.content.Intent;
  import android.content.IntentFilter;
  import android.net.Uri;
  import android.support.v4.app.NotificationCompat;
  import android.support.v4.content.LocalBroadcastManager;
  import android.support.v7.app.AppCompatActivity;
  import android.os.Bundle;
  import android.util.Log;
  import android.view.KeyEvent;
  import android.webkit.WebChromeClient;
  import android.webkit.WebView;
  import android.webkit.WebViewClient;
  import android.view.View;
  import android.graphics.Bitmap;
  import android.os.Handler;
  import android.support.v4.widget.SwipeRefreshLayout;
  import android.support.v4.widget.SwipeRefreshLayout.OnRefreshListener;
  
  
  
  import com.agraleaks.imgauravanimator.Common.Config;
  
  
  public class MainActivity extends AppCompatActivity implements OnRefreshListener {
  
      private WebView webView;
      private ProgressDialog dialog;
      private BroadcastReceiver mRegistrationBroadcastReceiver;
      private SwipeRefreshLayout swipeLayout;
  
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.activity_main);
          swipeLayout = (SwipeRefreshLayout) findViewById(R.id.swipe_container);
          swipeLayout.setOnRefreshListener(this);
          swipeLayout.setColorScheme(android.R.color.holo_blue_bright,
                  android.R.color.holo_green_light,
                  android.R.color.holo_orange_light,
                  android.R.color.holo_red_light);
  
  
  
  
  
          //WebView
          webView = (WebView)findViewById(R.id.webView);
          webView.getSettings().setJavaScriptEnabled(true);
          webView.setWebChromeClient(new WebChromeClient());
          webView.setWebViewClient(new WebViewClient() {
  
              @Override
              public void onPageFinished(WebView view, String url) {
                  //hide loading image
                  findViewById(R.id.imageView1).setVisibility(View.GONE);
                  findViewById(R.id.progressBar1).setVisibility(View.GONE);
                  //show webview
                  findViewById(R.id.webView).setVisibility(View.VISIBLE);
              }
  
  
          });
  
          webView.loadUrl("http://www.agraleaks.com/");
          webView.setHorizontalScrollBarEnabled(false);
          webView.setScrollBarStyle(View.SCROLLBARS_OUTSIDE_OVERLAY);
          webView.setBackgroundColor(128);
  
  
  
  
  
  
          mRegistrationBroadcastReceiver = new BroadcastReceiver() {
              @Override
              public void onReceive(Context context, Intent intent) {
                  if (intent.getAction().equals(Config.STR_PUSH))
                  {
                      String message = intent.getStringExtra(Config.STR_PUSH);
                      showNotification ("Agra Leaks- Fastest News Channel in the City",message);
                  }
              }
          };
  
          onNewIntent(getIntent());
  
      }
      @Override
      public void onPageStarted(WebView view, String url, Bitmap favicon) {
          // TODO Auto-generated method stub
          super.onPageStarted(view, url, favicon);
      }
  
      @Override
      public boolean shouldOverrideUrlLoading(WebView view, String url) {
          // TODO Auto-generated method stub
  
  
  
          if(url != null &amp;&amp; url.startsWith("whatsapp://"))
          {
               Intent sendIntent = new Intent();
          sendIntent.setAction(Intent.ACTION_SEND);
          sendIntent.putExtra(Intent.EXTRA_TEXT, "Agra Leaks - Digital Newspaper.");
          sendIntent.setType("text/plain");
          sendIntent.setPackage("com.whatsapp");
          startActivity(sendIntent);
              return true;
  
          }else
          {
              return false;
          }
  
  
  
      }
      private void showNotification(String title, String message) {
  
          Intent intent = new Intent(getBaseContext(),MainActivity.class);
          intent.putExtra(Config.STR_KEY,message);
          intent.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);
          PendingIntent contentIntent = PendingIntent.getActivity(getBaseContext(),0,intent,PendingIntent.FLAG_UPDATE_CURRENT);
          NotificationCompat.Builder builder = new NotificationCompat.Builder(getBaseContext());
          builder.setAutoCancel(true)
                  .setWhen(System.currentTimeMillis())
                  .setDefaults(Notification.DEFAULT_ALL)
                  .setSmallIcon(R.mipmap.ic_launcher_round)
                  .setContentTitle(title)
                  .setContentText(message)
                  .setContentIntent(contentIntent);
          NotificationManager notificationManager = (NotificationManager)getBaseContext().getSystemService(Context.NOTIFICATION_SERVICE);
          notificationManager.notify(1,builder.build());
      }
  
  
  
  
      @Override
      public boolean onKeyDown(int keyCode, KeyEvent event) {
          if (event.getAction()== KeyEvent.ACTION_DOWN){
  
              switch (keyCode){
  
                  case KeyEvent.KEYCODE_BACK:
                      if (webView.canGoBack()){
  
                          webView.goBack();
                      }
                      else {
  
                          finish();
                      }
                      return true;
              }
          }
          return super.onKeyDown(keyCode, event);
      }
  
      @Override
      protected void onPause() {
          LocalBroadcastManager.getInstance(this).unregisterReceiver(mRegistrationBroadcastReceiver);
          super.onPause();
      }
  
      @Override
      protected void onResume() {
          super.onResume();
          LocalBroadcastManager.getInstance(this).registerReceiver(mRegistrationBroadcastReceiver,new IntentFilter("registrationComplete"));
          LocalBroadcastManager.getInstance(this).registerReceiver(mRegistrationBroadcastReceiver,new IntentFilter(Config.STR_PUSH));
      }
  
  
      @Override
      public void onRefresh() {
          new Handler().postDelayed(new Runnable() {
              @Override public void run() {
                 // webView.reload();
                 swipeLayout.setRefreshing(false);
                  webView.loadUrl( "javascript:window.location.reload( true )" );
  
              }
          }, 5000);
      }
  
  
  
  
  
  
  }**
  </code></pre>
  
  <p>These are my code 
  Unable to share on Whatsapp from my WebView. Getting Error - The webpage at whatsapp://send?text= could not be load because net::ERR_UNKNOWN_URL_SCHEME.</p>
  
  <p>here is my activity_main</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;RelativeLayout 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="com.agraleaks.imgauravanimator.MainActivity"&gt;
  
      &lt;android.support.v4.widget.SwipeRefreshLayout
          xmlns:android="http://schemas.android.com/apk/res/android"
          android:id="@+id/swipe_container"
          android:layout_width="match_parent"
          android:layout_height="match_parent"&gt;
  
          &lt;WebView
              android:id="@+id/webView"
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"  /&gt;
  
  
  
  
  
      &lt;/android.support.v4.widget.SwipeRefreshLayout&gt;
  
   &lt;ImageView
          android:id="@+id/imageView1"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:src="@drawable/splash" /&gt;
  
  
      &lt;ProgressBar
          android:id="@+id/progressBar1"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:layout_below="@+id/imageView1"
          android:layout_centerHorizontal="true" /&gt;
  
  
  &lt;/RelativeLayout&gt;
  </code></pre>