title: Android Studio - Why WebView Doesn't Load Web URL
body: <p>Android Studio - Why WebView Doesn't Load Web URL</p>
  
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  -------------------------------My MainActivity.java-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-js lang-js prettyprint-override"><code>package com.spgisslive;
  
  import android.support.design.widget.TabLayout;
  import android.support.design.widget.FloatingActionButton;
  import android.support.design.widget.Snackbar;
  import android.support.v7.app.AppCompatActivity;
  import android.support.v7.widget.Toolbar;
  
  import android.support.v4.app.Fragment;
  import android.support.v4.app.FragmentManager;
  import android.support.v4.app.FragmentPagerAdapter;
  import android.support.v4.view.ViewPager;
  import android.os.Bundle;
  import android.view.LayoutInflater;
  import android.view.Menu;
  import android.view.MenuItem;
  import android.view.View;
  import android.view.ViewGroup;
  
  import android.webkit.WebSettings;
  import android.webkit.WebView;
  import android.webkit.WebViewClient;
  import android.widget.TextView;
  
  import static com.spgisslive.R.id.webview;
  
  public class MainActivity extends AppCompatActivity {
  
      /**
       * The {@link android.support.v4.view.PagerAdapter} that will provide
       * fragments for each of the sections. We use a
       * {@link FragmentPagerAdapter} derivative, which will keep every
       * loaded fragment in memory. If this becomes too memory intensive, it
       * may be best to switch to a
       * {@link android.support.v4.app.FragmentStatePagerAdapter}.
       */
      private SectionsPagerAdapter mSectionsPagerAdapter;
      private WebView mWebView;
  
      private ViewPager mViewPager;
  
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
  
          setContentView(R.layout.activity_main);
  
          // Create the adapter that will return a fragment for each of the three
          // primary sections of the activity.
          mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());
  
          // Set up the ViewPager with the sections adapter.
          mViewPager = (ViewPager) findViewById(R.id.container);
          mViewPager.setAdapter(mSectionsPagerAdapter);
  
          TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs);
          tabLayout.setupWithViewPager(mViewPager);
  
  
  
  
  
  
  
  
      }
  
  
      @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_main, menu);
          return true;
      }
  
      @Override
      public boolean onOptionsItemSelected(MenuItem item) {
          // Handle action bar item clicks here. The action bar will
          // automatically handle clicks on the Home/Up button, so long
          // as you specify a parent activity in AndroidManifest.xml.
          int id = item.getItemId();
  
          //noinspection SimplifiableIfStatement
          if (id == R.id.action_settings) {
              return true;
          }
  
          return super.onOptionsItemSelected(item);
      }
  
      /**
       * A placeholder fragment containing a simple view.
       */
      public static class PlaceholderFragment extends Fragment {
          /**
           * The fragment argument representing the section number for this
           * fragment.
           */
          private static final String ARG_SECTION_NUMBER = "section_number";
  
          public PlaceholderFragment() {
          }
  
          /**
           * Returns a new instance of this fragment for the given section
           * number.
           */
          public static PlaceholderFragment newInstance(int sectionNumber) {
              PlaceholderFragment fragment = new PlaceholderFragment();
              Bundle args = new Bundle();
              args.putInt(ARG_SECTION_NUMBER, sectionNumber);
              fragment.setArguments(args);
              return fragment;
          }
  
          @Override
          public View onCreateView(LayoutInflater inflater, ViewGroup container,
                                   Bundle savedInstanceState) {
              if (getArguments().getInt(ARG_SECTION_NUMBER) == 1) {
                  View rootView = inflater.inflate(R.layout.fragment_sub_page01, container, false);
                  return rootView;
              }
              else if (getArguments().getInt(ARG_SECTION_NUMBER) == 2) {
                  View rootView = inflater.inflate(R.layout.fragment_sub_page02, container, false);
                  return rootView;
              }
              else if (getArguments().getInt(ARG_SECTION_NUMBER) == 3) {
                  View rootView = inflater.inflate(R.layout.fragment_sub_page03, container, false);
                  return rootView;
              }
              else
              {
                  View rootView = inflater.inflate(R.layout.fragment_main, container, false);
                  return rootView;
              }
          }
      }
  
      /**
       * A {@link FragmentPagerAdapter} that returns a fragment corresponding to
       * one of the sections/tabs/pages.
       */
      public class SectionsPagerAdapter extends FragmentPagerAdapter {
  
          public SectionsPagerAdapter(FragmentManager fm) {
              super(fm);
          }
  
          @Override
          public Fragment getItem(int position) {
              // getItem is called to instantiate the fragment for the given page.
              // Return a PlaceholderFragment (defined as a static inner class below).
              return PlaceholderFragment.newInstance(position + 1);
          }
  
          @Override
          public int getCount() {
              // Show 3 total pages.
              return 3;
          }
  
          @Override
          public CharSequence getPageTitle(int position) {
              switch (position) {
                  case 0:
                      return "Page 01";
                  case 1:
                      return "Page 02";
                  case 2:
                      return "SECTION 3";
              }
              return null;
          }
      }
  }</code></pre>
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  </p>
  
  <p>Sorry I can't speak well. Thank you very much.</p>