mirror of https://github.com/tasks/tasks
Fixing location bugs and null pointer exception for tablet
parent
7aacca7c18
commit
0b3937cde7
@ -0,0 +1,103 @@
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package com.todoroo.astrid.taskrabbit;
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import java.util.Timer;
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import java.util.TimerTask;
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import android.content.Context;
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import android.location.Location;
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import android.location.LocationListener;
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import android.location.LocationManager;
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import android.os.Bundle;
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public class TaskRabbitLocationManager {
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Timer timer1;
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LocationManager lm;
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LocationResult locationResult;
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boolean gps_enabled=false;
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boolean network_enabled=false;
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public boolean getLocation(Context context, LocationResult result)
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{
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//I use LocationResult callback class to pass location value from MyLocation to user code.
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locationResult=result;
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if(lm==null)
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lm = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
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//exceptions will be thrown if provider is not permitted.
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try{gps_enabled=lm.isProviderEnabled(LocationManager.GPS_PROVIDER);}catch(Exception ex){}
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try{network_enabled=lm.isProviderEnabled(LocationManager.NETWORK_PROVIDER);}catch(Exception ex){}
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//don't start listeners if no provider is enabled
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if(!gps_enabled && !network_enabled)
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return false;
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if(gps_enabled)
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lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locationListenerGps);
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if(network_enabled)
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lm.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 0, 0, locationListenerNetwork);
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timer1=new Timer();
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timer1.schedule(new GetLastLocation(), 20000);
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return true;
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}
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LocationListener locationListenerGps = new LocationListener() {
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public void onLocationChanged(Location location) {
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timer1.cancel();
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locationResult.gotLocation(location);
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lm.removeUpdates(this);
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lm.removeUpdates(locationListenerNetwork);
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}
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public void onProviderDisabled(String provider) {}
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public void onProviderEnabled(String provider) {}
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public void onStatusChanged(String provider, int status, Bundle extras) {}
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};
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LocationListener locationListenerNetwork = new LocationListener() {
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public void onLocationChanged(Location location) {
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timer1.cancel();
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locationResult.gotLocation(location);
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lm.removeUpdates(this);
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lm.removeUpdates(locationListenerGps);
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}
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public void onProviderDisabled(String provider) {}
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public void onProviderEnabled(String provider) {}
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public void onStatusChanged(String provider, int status, Bundle extras) {}
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};
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class GetLastLocation extends TimerTask {
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@Override
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public void run() {
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lm.removeUpdates(locationListenerGps);
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lm.removeUpdates(locationListenerNetwork);
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Location net_loc=null, gps_loc=null;
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if(gps_enabled)
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gps_loc=lm.getLastKnownLocation(LocationManager.GPS_PROVIDER);
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if(network_enabled)
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net_loc=lm.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
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//if there are both values use the latest one
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if(gps_loc!=null && net_loc!=null){
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if(gps_loc.getTime()>net_loc.getTime())
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locationResult.gotLocation(gps_loc);
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else
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locationResult.gotLocation(net_loc);
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return;
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}
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if(gps_loc!=null){
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locationResult.gotLocation(gps_loc);
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return;
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}
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if(net_loc!=null){
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locationResult.gotLocation(net_loc);
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return;
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}
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locationResult.gotLocation(null);
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}
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}
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public static abstract class LocationResult{
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public abstract void gotLocation(Location location);
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}
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}
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