mirror of
https://codeberg.org/Freeyourgadget/Gadgetbridge
synced 2024-07-04 03:52:02 +02:00
101 lines
3.3 KiB
Java
101 lines
3.3 KiB
Java
/* Copyright (C) 2022 Arjan Schrijver
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This file is part of Gadgetbridge.
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Gadgetbridge is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as published
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by the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Gadgetbridge is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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package nodomain.freeyourgadget.gadgetbridge.externalevents.opentracks;
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import android.app.Activity;
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import android.content.Context;
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import android.database.ContentObserver;
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import android.net.Uri;
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import android.os.Handler;
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import java.util.List;
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public class OpenTracksContentObserver extends ContentObserver {
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private Context mContext;
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private Uri tracksUri;
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private int protocolVersion;
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private int totalTimeMillis;
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private float totalDistanceMeter;
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private long previousTimeMillis = 0;
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private float previousDistanceMeter = 0;
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public int getTotalTimeMillis() {
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return totalTimeMillis;
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}
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public float getTotalDistanceMeter() {
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return totalDistanceMeter;
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}
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public long getTimeMillisChange() {
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/**
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* We don't use the timeMillis received from OpenTracks here, because those updates do not
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* come in very regularly when GPS reception is bad
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*/
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long timeMillisDelta = System.currentTimeMillis() - previousTimeMillis;
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previousTimeMillis = System.currentTimeMillis();
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return timeMillisDelta;
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}
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public float getDistanceMeterChange() {
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float distanceMeterDelta = totalDistanceMeter - previousDistanceMeter;
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previousDistanceMeter = totalDistanceMeter;
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return distanceMeterDelta;
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}
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public OpenTracksContentObserver(Context context, final Uri tracksUri, final int protocolVersion) {
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super(new Handler());
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this.mContext = context;
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this.tracksUri = tracksUri;
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this.protocolVersion = protocolVersion;
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this.previousTimeMillis = System.currentTimeMillis();
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}
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@Override
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public void onChange(final boolean selfChange, final Uri uri) {
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if (uri == null) {
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return; // nothing can be done without an uri
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}
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if (tracksUri.toString().startsWith(uri.toString())) {
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final List<Track> tracks = Track.readTracks(mContext.getContentResolver(), tracksUri, protocolVersion);
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if (!tracks.isEmpty()) {
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final TrackStatistics statistics = new TrackStatistics(tracks);
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totalTimeMillis = statistics.getTotalTimeMillis();
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totalDistanceMeter = statistics.getTotalDistanceMeter();
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}
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}
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}
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public void unregister() {
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if (mContext != null) {
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mContext.getContentResolver().unregisterContentObserver(this);
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}
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}
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public void finish() {
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unregister();
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if (mContext != null) {
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((Activity) mContext).finish();
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mContext = null;
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}
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}
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}
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