WebView处理网页位置请求

 
  id="demo">Click the button to get your coordinates:

  Onclick="getLocation()">Try It

 

 

final WebView webView = new WebView(this);
addContentView(webView, new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT) );
WebSettings settings = webView.getSettings();
settings.setJavascriptEnabled(true);
settings.setGeolocationEnabled(true);
settings.setGeolocationDatabasePath(getFilesDir().getPath());
 
webView.setWebChromeClient(new WebChromeClient() {
 @Override
 public void onGeolocationPermissionsHidePrompt() {
 super.onGeolocationPermissionsHidePrompt();
 Log.i(LOGTAG, "onGeolocationPermissionsHidePrompt");
 }

 @Override
 public void onGeolocationPermissionsShowPrompt(final String origin,
 final Callback callback) {
 AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
 builder.setMessage("Allow to access location information?");
 OnClickListener dialogButtonOnClickListener = new OnClickListener() {

 @Override
 public void onClick(DialogInterface dialog, int clickedButton) {
 if (DialogInterface.BUTTON_POSITIVE == clickedButton) {
 callback.invoke(origin, true, true);
 } else if (DialogInterface.BUTTON_NEGATIVE == clickedButton) {
 callback.invoke(origin, false, false);
 }
 }
 };
 builder.setPositiveButton("Allow", dialogButtonOnClickListener);
 builder.setNegativeButton("Deny", dialogButtonOnClickListener);
 builder.show();
 super.onGeolocationPermissionsShowPrompt(origin, callback);
 Log.i(LOGTAG, "onGeolocationPermissionsShowPrompt");
 }
});
webView.loadUrl("file:///android_asset/geolocation.html");

private void testGeolocationOK() {
 LocationManager manager = (LocationManager)getSystemService(Context.LOCATION_SERVICE);
 boolean gpsProviderOK = manager.isProviderEnabled(LocationManager.GPS_PROVIDER);
 boolean networkProviderOK = manager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
 boolean geolocationOK = gpsProviderOK && networkProviderOK;
 Log.i(LOGTAG, "gpsProviderOK = " + gpsProviderOK + "; networkProviderOK = " + networkProviderOK + "; geoLocatiOnOK=" + geolocationOK);
}

Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
startActivity(intent);