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POFiguring out alarm manager
 

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  1. POFiguring out alarm manager
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    <p>I am trying to create an app that will send some data to a webserver after x mins. I was told that an alarm manager would be the best solution and just call the same alarm function with an extra x mins inside the alarm so that it will constantly send the data even in the background.</p> <p>However I have only seen alarms open intents within the project. Does that mean it will switch to the new intent after x mins or will everything work in the background? </p> <p>The background data should be sent without having to switch between intents so I would prefer it to just call a function inside one of my activities. How should I go about doing this?</p> <p>Here is the function I would like to call every x mins.</p> <p>Thanks</p> <pre><code>public class updateloc extends AsyncTask&lt;Void, Void, Void&gt; { protected void onPostExecute(String response) { if (response != null) { // check if this does anything later } progressDialog.dismiss(); } @Override protected void onPreExecute() { super.onPreExecute(); progressDialog = ProgressDialog.show(ImTracking.this, "", "Updating Data..."); } @Override protected Void doInBackground(Void... arg0) { SharedPreferences prefs = getSharedPreferences("Settings", 0); final String id = prefs.getString("ID", ""); DefaultHttpClient httpclient = new DefaultHttpClient(); HttpPost httpost = new HttpPost( "http://iphone-radar.com/gps/gps_locations"); JSONObject holder = new JSONObject(); try { holder.put("id", id); LocationManager locationManager = (LocationManager) getSystemService(LOCATION_SERVICE); Criteria criteria = new Criteria(); criteria.setAccuracy(Criteria.ACCURACY_FINE); String bestProvider = locationManager.getBestProvider(criteria, false); LocationListener loc_listener = new LocationListener() { @Override public void onStatusChanged(String provider, int status, Bundle extras) { } }; try { Looper.prepare(); locationManager.requestLocationUpdates(bestProvider, 0, 0, loc_listener); } catch (Exception e) { e.printStackTrace(); } Location location = locationManager .getLastKnownLocation(bestProvider); Calendar c = Calendar.getInstance(); SimpleDateFormat sdf = new SimpleDateFormat( "hh:mmaa MM/dd/yyyy"); holder.put("time", sdf.format(c.getTime())); holder.put("time_since_epoch", System.currentTimeMillis()); try { holder.put("lat", location.getLatitude()); holder.put("lon", location.getLongitude()); } catch (NullPointerException e) { try { holder.put("lat", -1.0); holder.put("lon", -1.0); } catch (JSONException e1) { e1.printStackTrace(); } } StringEntity se = new StringEntity(holder.toString()); httpost.setEntity(se); httpost.setHeader("Accept", "application/json"); httpost.setHeader("Content-type", "application/json"); ResponseHandler responseHandler = new BasicResponseHandler(); String response = httpclient.execute(httpost, responseHandler); org.json.JSONObject obj; obj = new org.json.JSONObject(response); } catch (JSONException e) { e.printStackTrace(); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } catch (ClientProtocolException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } progressDialog.dismiss(); return null; } } </code></pre>
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    1. USSiddharth
    1. USSean
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    1. COCheck out `http://stackoverflow.com/questions/16128091/setting-up-alarm-manager-is-creating-2-instances-of-my-main-activity/16134932#16134932` it works for me.
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      1. USSiddharth
 

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