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Bugfix: NPE fixed because listeners/client were null in some cases.

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TrackRecordingService: before destroying it sends GPS Status NONE to all listeners.
Cleanup Logs used for debugging.
This commit is contained in:
Román
2020-08-14 10:32:34 +02:00
committed by Román Martínez
parent 80a8017a18
commit 32d811b46e
3 changed files with 28 additions and 30 deletions
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src/main/java/de/dennisguse/opentracks/services/handlers/GpsStatus.java
+17 -14
View File
@@ -4,7 +4,6 @@ import android.content.Context;
import android.location.Location;
import android.location.LocationManager;
import android.os.Handler;
import android.util.Log;
import de.dennisguse.opentracks.util.PreferencesUtils;
import de.dennisguse.opentracks.util.UnitConversions;
@@ -12,13 +11,12 @@ import de.dennisguse.opentracks.util.UnitConversions;
/**
* This class handle GPS status according to received locations and some thresholds.
*/
// TODO 2020-07-17 Delete all Log.d messages before merge with main branch. For now it's useful for debugging.
class GpsStatus {
private static final String TAG = GpsStatus.class.getSimpleName();
// The quantity of milliseconds that GpsStatus waits from minimal interval to consider GPS lost.
private static final int SIGNAL_LOST_THRESHOLD = 10000;
private static final int SIGNAL_LOST_THRESHOLD = (int) (10 * UnitConversions.S_TO_MS);
// Threshold for accuracy.
private double signalBadThreshold;
@@ -28,7 +26,10 @@ class GpsStatus {
private GpsStatusValue gpsStatus = GpsStatusValue.GPS_NONE;
private GpsStatusListener client;
private Context context;
// Last location. It can be null.
private Location lastLocation = null;
// The last valid (not null) location. Null value means that there have not been any location yet.
private Location lastValidLocation = null;
private class GpsStatusRunner implements Runnable {
@@ -67,10 +68,10 @@ class GpsStatus {
* The client that uses GpsStatus has to call this method to stop the Runnable if needed.
*/
public void stop() {
client = null;
if (gpsStatusRunner != null) {
gpsStatusRunner.stop();
gpsStatusRunner = null;
client = null;
}
}
@@ -119,24 +120,21 @@ class GpsStatus {
private void checkStatusFromLastLocation() {
if (System.currentTimeMillis() - lastLocation.getTime() > signalLostThreshold && gpsStatus != GpsStatusValue.GPS_SIGNAL_LOST) {
// So much time without receiving signal -> signal lost.
Log.d(TAG, "Signal LOST. signalLostThreshold: " + signalLostThreshold + " - System.currentTimeMillis() - lastLocation.getTime() > " + (System.currentTimeMillis() - lastLocation.getTime()));
GpsStatusValue oldStatus = gpsStatus;
gpsStatus = GpsStatusValue.GPS_SIGNAL_LOST;
client.onGpsStatusChanged(oldStatus, gpsStatus);
sendStatus(oldStatus, gpsStatus);
stopStatusRunner();
} else if (lastLocation.getAccuracy() > signalBadThreshold && gpsStatus != GpsStatusValue.GPS_SIGNAL_BAD) {
// Too little accuracy -> bad signal.
Log.d(TAG, "Signal BAD. signalBadThreshold: " + signalBadThreshold + " - lastLocation.getAccuracy() = " + lastLocation.getAccuracy());
GpsStatusValue oldStatus = gpsStatus;
gpsStatus = GpsStatusValue.GPS_SIGNAL_BAD;
client.onGpsStatusChanged(oldStatus, gpsStatus);
sendStatus(oldStatus, gpsStatus);
startStatusRunner();
} else if (lastLocation.getAccuracy() <= signalBadThreshold && gpsStatus != GpsStatusValue.GPS_SIGNAL_FIX) {
Log.d(TAG, "Signal FIX. signalBadThreshold: " + signalBadThreshold + " - lastLocation.getAccuracy() = " + lastLocation.getAccuracy());
// Gps okay.
GpsStatusValue oldStatus = gpsStatus;
gpsStatus = GpsStatusValue.GPS_SIGNAL_FIX;
client.onGpsStatusChanged(oldStatus, gpsStatus);
sendStatus(oldStatus, gpsStatus);
startStatusRunner();
}
}
@@ -149,10 +147,9 @@ class GpsStatus {
private void checkStatusFromLastValidLocation() {
if (System.currentTimeMillis() - lastValidLocation.getTime() > signalLostThreshold) {
// Too much time without locations -> lost signal? (wait signalLostThreshold from last valid location).
Log.d(TAG, "Signal LOST. signalLostThreshold: " + signalLostThreshold + " - System.currentTimeMillis() - lastValidLocation.getTime() > " + signalLostThreshold);
GpsStatusValue oldStatus = gpsStatus;
gpsStatus = GpsStatusValue.GPS_SIGNAL_LOST;
client.onGpsStatusChanged(oldStatus, gpsStatus);
sendStatus(oldStatus, gpsStatus);
stopStatusRunner();
lastValidLocation = null;
}
@@ -168,7 +165,7 @@ class GpsStatus {
if (locationManager != null && locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)) {
GpsStatusValue oldStatus = gpsStatus;
gpsStatus = GpsStatusValue.GPS_ENABLED;
client.onGpsStatusChanged(oldStatus, gpsStatus);
sendStatus(oldStatus, gpsStatus);
startStatusRunner();
} else {
onGpsDisabled();
@@ -183,13 +180,19 @@ class GpsStatus {
if (gpsStatus != GpsStatusValue.GPS_DISABLED) {
GpsStatusValue oldStatus = gpsStatus;
gpsStatus = GpsStatusValue.GPS_DISABLED;
client.onGpsStatusChanged(oldStatus, gpsStatus);
sendStatus(oldStatus, gpsStatus);
lastLocation = null;
lastValidLocation = null;
stopStatusRunner();
}
}
private void sendStatus(GpsStatusValue prev, GpsStatusValue current) {
if (client != null) {
client.onGpsStatusChanged(prev, current);
}
}
private void startStatusRunner() {
if (gpsStatusRunner == null) {
gpsStatusRunner = new GpsStatusRunner();