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package com.mapbox.mapboxsdk.testapp.activity.userlocation;
import android.animation.AnimatorListenerAdapter;
import android.animation.TypeEvaluator;
import android.animation.ValueAnimator;
import android.location.Location;
import com.mapbox.android.core.location.LocationEngine;
import com.mapbox.android.core.location.LocationEngineListener;
import timber.log.Timber;
/**
* Sample LocationEngine that provides mocked LOCATIONS simulating GPS updates
*/
public class MockLocationEngine extends LocationEngine {
private static MockLocationEngine INSTANCE;
private final LocationAnimator locationAnimator;
private boolean running;
private static int counter;
MockLocationEngine(Location start, Location end) {
locationAnimator = new LocationAnimator(start, end, animation -> {
for (LocationEngineListener listener : locationListeners) {
listener.onLocationChanged((Location) animation.getAnimatedValue());
}
});
}
public static synchronized MockLocationEngine getInstance() {
if (INSTANCE == null) {
INSTANCE = new MockLocationEngine(
MockLocationEngine.createLocation(40.416913, -3.703861),
MockLocationEngine.createLocation(39.461643, -0.368041)
);
}
return INSTANCE;
}
public static Location createLocation(double latitude, double longitude) {
Location location = new Location(MockLocationEngine.class.getSimpleName());
location.setLatitude(latitude);
location.setLongitude(longitude);
return location;
}
@Override
public void activate() {
// "Connection" is immediate here
for (LocationEngineListener listener : locationListeners) {
listener.onConnected();
}
}
@Override
public void deactivate() {
}
@Override
public boolean isConnected() {
return true; // Always connected
}
@Override
public Location getLastLocation() {
return null;
}
@Override
public void requestLocationUpdates() {
if (!running) {
locationAnimator.start();
running = true;
}
}
@Override
public void removeLocationUpdates() {
if (running) {
locationAnimator.stop();
running = false;
Timber.e("LOC %s", counter);
}
}
@Override
public Type obtainType() {
return Type.MOCK;
}
private static class LocationAnimator extends AnimatorListenerAdapter {
private static final long DURATION_ANIMATION = 10000;
private final ValueAnimator locationAnimator;
private long animationTime;
LocationAnimator(Location start, Location end, ValueAnimator.AnimatorUpdateListener listener) {
locationAnimator = ValueAnimator.ofObject(new LocationEvaluator(), start, end);
locationAnimator.setDuration(DURATION_ANIMATION);
locationAnimator.addUpdateListener(listener);
locationAnimator.addListener(this);
}
void start() {
locationAnimator.start();
locationAnimator.setCurrentPlayTime(animationTime);
}
void stop() {
animationTime = locationAnimator.getCurrentPlayTime();
locationAnimator.cancel();
}
private static class LocationEvaluator implements TypeEvaluator<Location> {
private Location location = new Location(MockLocationEngine.class.getSimpleName());
@Override
public Location evaluate(float fraction, Location startValue, Location endValue) {
counter++;
location.setLatitude(startValue.getLatitude()
+ ((endValue.getLatitude() - startValue.getLatitude()) * fraction));
location.setLongitude(startValue.getLongitude()
+ ((endValue.getLongitude() - startValue.getLongitude()) * fraction));
return location;
}
}
}
}
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