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POAlert Dialog Error in Android app
 

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  1. POAlert Dialog Error in Android app
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    <p>I'm having problems properly displaying an alert in my Android app. The goal is to send GPS coordinates to a database, but first check to see if the user is in a defined area. If the user is outside of the area, I want to display the alert. I keep getting problems on the line <code>AlertDialog.Builder alert = new AlertDialog.Builder(this);</code> with the error <code>The constructor AlertDialog.Builder(new LocationListener(){}) is undefined</code> I asked a similar question previously, but the solutions did not work and I think it's because I failed to include enough code. I'd appreciate any suggestions! </p> <pre><code> import java.io.BufferedReader; public class FindLocation { protected static final Context SendLocation = null; private LocationManager locManager; private LocationListener locListener; private class SendLocation extends AsyncTask&lt;String, Void, String&gt; { protected String doInBackground(String... params) { String lat = params[0]; String lon = params[1]; String usr_id2 = params[2]; HttpClient httpclient = new DefaultHttpClient(); HttpPost httppost = new HttpPost("http://example.com/example.php"); try { List&lt;NameValuePair&gt; nameValuePairs = new ArrayList&lt;NameValuePair&gt;(2); nameValuePairs.add(new BasicNameValuePair("lat", lat)); nameValuePairs.add(new BasicNameValuePair("lon", lon)); nameValuePairs.add(new BasicNameValuePair("id", usr_id2)); httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); httpclient.execute(httppost); } catch (ClientProtocolException e) { // TODO Auto-generated catch block } catch (IOException e) { // TODO Auto-generated catch block } return lon; } } public void startLocation(Context context, String usr_id2) { //changed context to final when AlertDialog was added final String usr = usr_id2; //get a reference to the LocationManager locManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE); //checked to receive updates from the position locListener = new LocationListener() { public void onLocationChanged(Location loc) { String lat = String.valueOf(loc.getLatitude()); String lon = String.valueOf(loc.getLongitude()); Double latitude = loc.getLatitude(); Double longitude = loc.getLongitude(); if (latitude &gt;= 39.15296 &amp;&amp; longitude &gt;= -86.547546 &amp;&amp; latitude &lt;= 39.184901 &amp;&amp; longitude &lt;= -86.504288) { Log.i("Test", "Yes"); CityActivity check = new CityActivity(); check.checkDataBase(usr); SendLocation task = new SendLocation(); task.execute(lat, lon, usr); } else { Log.i("Test", "No"); AlertDialog.Builder alert = new AlertDialog.Builder(this); //****error here***** alert.setTitle("Warning"); alert.setMessage("Sorry"); alert.setPositiveButton("OK", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { // here you can add functions } }); alert.show(); } } public void onProviderDisabled(String provider){ } public void onProviderEnabled(String provider){ } public void onStatusChanged(String provider, int status, Bundle extras){ } }; locManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 1000, 0, locListener); } </code></pre>
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