getting location in WebView via js
<p>I am trying to create WebView which would get GPS localization via js, but when i click on button which should show localization:
in android 4.1.1(emulator): "Error code 2. Failed to start Geolocation service
in android 4.1.2(phone) just nothing happens
in android 6.0(emulator) the same, just nothing happens</p>

<p>My permissions:</p>

<pre><code>&lt;uses-permission android:name="android.permission.INTERNET" /&gt;
&lt;uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/&gt;
&lt;uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/&gt;
&lt;uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/&gt;
&lt;uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/&gt;
</code></pre>

<p>My settings:</p>

<pre><code>webView.getSettings().setJavaScriptEnabled(true);
        webView.getSettings().setGeolocationEnabled(true);
        webView.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);
        webView.getSettings().setBuiltInZoomControls(true);

        webView.getSettings().setSaveFormData(false);
        webView.getSettings().setSavePassword(false);
        webView.getSettings().setAppCacheEnabled(true);
        webView.getSettings().setDatabaseEnabled(true);
        webView.getSettings().setDomStorageEnabled(true);
        webView.getSettings().setGeolocationDatabasePath(getFilesDir().getPath());
</code></pre>

<p>WebChromeClient:</p>

<pre><code>WebChromeClient webChromeClient = new WebChromeClient(){

            @Override
            public void onGeolocationPermissionsShowPrompt(String origin, GeolocationPermissions.Callback callback) {
                // callback.invoke(String origin, boolean allow, boolean remember);
                callback.invoke(origin, true, false);
            }

            public void openFileChooser(ValueCallback&lt;Uri&gt; uploadMsg, String acceptType, String capture){
                mUploadMessage = uploadMsg;
                Intent i = new Intent(Intent.ACTION_GET_CONTENT);
                i.addCategory(Intent.CATEGORY_OPENABLE);
                i.setType("*/*");
                MainActivity.this.startActivityForResult(Intent.createChooser(i, "File Chooser"), MainActivity.FILECHOOSER_RESULTCODE);

            }

            public boolean onShowFileChooser (WebView webView, ValueCallback&lt;Uri[]&gt; filePathCallback, WebChromeClient.FileChooserParams fileChooserParams){
                Intent i = new Intent(Intent.ACTION_GET_CONTENT);
                i.addCategory(Intent.CATEGORY_OPENABLE);
                i.setType("*/*");
                MainActivity.this.startActivityForResult(Intent.createChooser(i, "File Chooser"), MainActivity.FILECHOOSER_RESULTCODE);
                return false;
            }

        };
</code></pre>

<p>WebViewClient:</p>

<pre><code>WebViewClient webViewClient = new WebViewClient(){
            @Override
            public boolean shouldOverrideUrlLoading(WebView view, String url){
                view.loadUrl(url);
                return true;
            }

            public void onPageFinished(WebView view, String url){
                progressBar.setVisibility(View.GONE);
                webView.setVisibility(View.VISIBLE);
                refreshBtn.setVisibility(View.VISIBLE);
            }
        };
</code></pre>

<p>at the end, i have this line of code:</p>

<pre><code>ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.ACCESS_COARSE_LOCATION}, 0);
</code></pre>

<p>and js code (not my code):</p>

<pre><code>    &lt;script&gt;
function getLocationConstant()
{
  if(navigator.geolocation)
  {
   navigator.geolocation.getCurrentPosition(onGeoSuccess,onGeoError);
  } else {
   alert("Brak obsługi GPS");
  }
}


function onGeoSuccess(event)
{
  document.getElementById("skad").value =  event.coords.latitude+", "+event.coords.longitude;
 document.getElementById('szk').click();

}


function onGeoError(event)
{
  alert("Error code " + event.code + ". " + event.message);
}


&lt;/script&gt;

&lt;input type="text" name="skad" style="width:278px;" id="skad" &gt;
</code></pre>