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POHow to run an activity once in 3o mins forever android?
 

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    <p>hi i want this code to be repeated forever, can any body help me pls i am trying a lot but i could not get an explanantion for this i cant understand how to repeate it once for half an hour using alarm method or timer. Can anybody help me? and i dont need a service for this.</p> <p>code:</p> <pre><code>public class gps extends Activity implements LocationListener { LocationManager manager; String closestStation; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); { Calendar cur_cal = Calendar.getInstance(); cur_cal.setTimeInMillis(System.currentTimeMillis()); cur_cal.add(Calendar.MINUTE, 15); Log.d("Testing", "Calender Set time:" + cur_cal.getTime()); Intent intent = new Intent(gps.this, gps_back_process.class); PendingIntent pintent = PendingIntent.getService(gps.this, 0, intent, 0); AlarmManager alarm_manager = (AlarmManager) getSystemService(Context.ALARM_SERVICE); alarm_manager.setRepeating(AlarmManager.RTC_WAKEUP, cur_cal.getTimeInMillis(), 1000 * 60 * 15, pintent); alarm_manager.set(AlarmManager.RTC, cur_cal.getTimeInMillis(), pintent); Log.d("Testing", "alarm manager set"); Toast.makeText(this, "gps_back_process.onCreate()", Toast.LENGTH_LONG).show(); } Intent intent = new Intent("android.location.GPS_ENABLED_CHANGE"); intent.putExtra("enabled", true); this.sendBroadcast(intent); String provider = Settings.Secure.getString(getContentResolver(), Settings.Secure.LOCATION_PROVIDERS_ALLOWED); if(!provider.contains("gps")){ //if gps is disabled final Intent poke = new Intent(); poke.setClassName("com.android.settings", "com.android.settings.widget.SettingsAppWidgetProvider"); poke.addCategory(Intent.CATEGORY_ALTERNATIVE); poke.setData(Uri.parse("3")); this.sendBroadcast(poke); } { //initialize location manager manager = (LocationManager) getSystemService(Context.LOCATION_SERVICE); //check if GPS is enabled //if not, notify user with a toast if (!manager.isProviderEnabled(LocationManager.GPS_PROVIDER)); else { //get a location provider from location manager //empty criteria searches through all providers and returns the best one String providerName = manager.getBestProvider(new Criteria(), true); Location location = manager.getLastKnownLocation(providerName); TextView tv = (TextView)findViewById(R.id.locationResults); if (location != null) { tv.setText(location.getLatitude() + " latitude, " + location.getLongitude() + " longitude"); } else { tv.setText("Last known location not found. Waiting for updated location..."); } manager.requestLocationUpdates(providerName, 1000*60*30 , 1 , this); } } } @Override public void onLocationChanged(Location location) { TextView tv = (TextView)findViewById(R.id.locationResults); if (location != null) { tv.setText(location.getLatitude() + " latitude, " + location.getLongitude() + " longitude"); // I have added this line appendData ( location.getLatitude() + " latitude, " + location.getLongitude() + " longitude" ); } else { tv.setText("Problem getting gps NETWORK ID : " + ""); } } @Override public void onProviderDisabled(String arg0) {} @Override public void onProviderEnabled(String arg0) {} @Override public void onStatusChanged(String arg0, int arg1, Bundle arg2) {} // Find the closest Bart Station public String findClosestBart(Location loc) { double lat = loc.getLatitude(); double lon = loc.getLongitude(); double curStatLat = 0; double curStatLon = 0; double shortestDistSoFar = Double.POSITIVE_INFINITY; double curDist; String curStat = null; String closestStat = null; //sort through all the stations // write some sort of for loop using the API. curDist = Math.sqrt( ((lat - curStatLat) * (lat - curStatLat)) + ((lon - curStatLon) * (lon - curStatLon)) ); if (curDist &lt; shortestDistSoFar) { closestStat = curStat; } return closestStat; } // method to write in file public void appendData(String text) { File dataFile = new File(Environment.getExternalStorageDirectory() + "/GpsData.txt"); if (!dataFile.exists()) { try { dataFile.createNewFile(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } try { //BufferedWriter for performance, true to set append to file flag BufferedWriter buf = new BufferedWriter(new FileWriter(dataFile, true)); SimpleDateFormat sdf = new SimpleDateFormat("HH:mm, dd/MM/yyyy"); String currentDateandTime = sdf.format(new Date()); // text+=","+currentDateandTime; buf.append(text + "," + currentDateandTime); buf.newLine(); buf.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } </code></pre>
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    1. COThis seems to be the **6th** time you are asking this question in various forms. Some have different titles / post contents, etc. But all in all, duplicates. [Question 1](http://stackoverflow.com/q/16371053/450534), [Question 2](http://stackoverflow.com/q/16352048/450534), [Question 3](http://stackoverflow.com/q/16370089/450534), [Question 4](http://stackoverflow.com/q/16354919/450534) _and_ [Question 5](http://stackoverflow.com/q/16336028/450534).
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    2. COYou mean, you want an Activity to popup from nowhere on a user's device every 30 minutes? Are you sure about this?
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    3. COagreed with @IceMAN .. PureIndianDeveloper read the FAQ pls... -1
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