Differential D87 Diff 300 src/it/reyboz/bustorino/middleware/AppLocationManager.java

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src/it/reyboz/bustorino/middleware/AppLocationManager.java

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	import android.location.LocationListener;			import android.location.LocationListener;
	import android.location.LocationManager;			import android.location.LocationManager;
	import android.location.LocationProvider;			import android.location.LocationProvider;
	import android.os.Bundle;			import android.os.Bundle;
	import android.util.Log;			import android.util.Log;
	import android.widget.Toast;			import android.widget.Toast;

	import androidx.core.content.ContextCompat;			import androidx.core.content.ContextCompat;
				import androidx.core.location.LocationManagerCompat;
				import androidx.core.location.LocationRequestCompat;

	import it.reyboz.bustorino.util.LocationCriteria;			import it.reyboz.bustorino.util.LocationCriteria;
	import it.reyboz.bustorino.util.Permissions;			import it.reyboz.bustorino.util.Permissions;

	import java.lang.ref.WeakReference;			import java.lang.ref.WeakReference;
	import java.util.ArrayList;			import java.util.ArrayList;
	import java.util.ListIterator;			import java.util.ListIterator;

	/**			/**
	* Singleton class used to access location. Possibly extended with other location sources.			* Singleton class used to access location. Possibly extended with other location sources.
	*/			*/
	public class AppLocationManager implements LocationListener {			public class AppLocationManager implements LocationListener {

	public static final int LOCATION_GPS_AVAILABLE = 22;			public static final int LOCATION_GPS_AVAILABLE = 22;
	public static final int LOCATION_UNAVAILABLE = -22;			public static final int LOCATION_UNAVAILABLE = -22;

	private final Context appContext;			private final Context appContext;
	private final LocationManager locMan;			private final LocationManager locMan;
	public static final String DEBUG_TAG = "BUSTO LocAdapter";			public static final String DEBUG_TAG = "BUSTO LocAdapter";
	private final String BUNDLE_LOCATION = "location";			private final String BUNDLE_LOCATION = "location";
	private static AppLocationManager instance;			private static AppLocationManager instance;
	private int oldGPSLocStatus = LOCATION_UNAVAILABLE;			private int oldGPSLocStatus = LOCATION_UNAVAILABLE;
	private int minimum_time_milli = -1;			private int minimum_time_milli = -1;

	private boolean isLocationPermissionGiven = false;

	private final ArrayList<WeakReference<LocationRequester>> requestersRef = new ArrayList<>();			private final ArrayList<WeakReference<LocationRequester>> requestersRef = new ArrayList<>();


	private AppLocationManager(Context context) {			private AppLocationManager(Context context) {
	this.appContext = context.getApplicationContext();			this.appContext = context.getApplicationContext();
	locMan = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);			locMan = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
	isLocationPermissionGiven = checkLocationPermission(context);			boolean isLocationPermissionGiven = checkLocationPermission(context);
	}			}

	public static AppLocationManager getInstance(Context con) {			public static AppLocationManager getInstance(Context con) {
	if(instance==null) instance = new AppLocationManager(con);			if(instance==null) instance = new AppLocationManager(con);
	return instance;			return instance;
	}			}

	public static boolean checkLocationPermission(Context context){			public static boolean checkLocationPermission(Context context){
	return ContextCompat.checkSelfPermission(context,			return ContextCompat.checkSelfPermission(context,
	Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED;			Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED;
	}			}


	private void requestGPSPositionUpdates() throws SecurityException{			private void requestGPSPositionUpdates() throws SecurityException{
	final int timeinterval = (minimum_time_milli>0 && minimum_time_milli<Integer.MAX_VALUE)? minimum_time_milli : 2000;			final int timeinterval = (minimum_time_milli>0 && minimum_time_milli<Integer.MAX_VALUE)? minimum_time_milli : 2000;

	locMan.removeUpdates(this);			locMan.removeUpdates(this);
				if(locMan.getAllProviders().contains("gps"))
	locMan.requestLocationUpdates(LocationManager.GPS_PROVIDER, timeinterval, 5, this);			locMan.requestLocationUpdates(LocationManager.GPS_PROVIDER, timeinterval, 5, this);
				/*LocationManagerCompat.requestLocationUpdates(locMan, LocationManager.GPS_PROVIDER,
				new LocationRequestCompat.Builder(timeinterval).setMinUpdateDistanceMeters(5.F).build(),this, );
				TODO: find a way to do this
				*/

	}			}
	private void cleanAndUpdateRequesters(){			private void cleanAndUpdateRequesters(){
	minimum_time_milli = Integer.MAX_VALUE;			minimum_time_milli = Integer.MAX_VALUE;
	ListIterator<WeakReference<LocationRequester>> iter = requestersRef.listIterator();			ListIterator<WeakReference<LocationRequester>> iter = requestersRef.listIterator();
	while(iter.hasNext()){			while(iter.hasNext()){
	final LocationRequester cReq = iter.next().get();			final LocationRequester cReq = iter.next().get();
	if(cReq==null) iter.remove();			if(cReq==null) iter.remove();
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