Was experimenting with automatic GPX export. Hardcoded path.

These changes are several months old, I am just now committing them
because I want to move on to a different experiment.

app/src/main/AndroidManifest.xml

@@ -2,6 +2,8 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="org.y20k.trackbook">
 
+
+
     <!-- USE GPS AND NETWORK - EXCLUDE NON-GPS DEVICES -->
     <uses-feature android:name="android.hardware.location.gps" android:required="true" />
     <uses-feature android:name="android.hardware.location.network" />
@@ -17,13 +19,15 @@
     <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
     <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
     <uses-permission android:name="android.permission.ACTIVITY_RECOGNITION" />
-
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
     <application
         android:name=".Trackbook"
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
         android:supportsRtl="true"
+        android:requestLegacyExternalStorage="true"
         android:theme="@style/AppTheme">
 
         <!-- MAIN ACTIVITY -->

app/src/main/java/org/y20k/trackbook/Keys.kt

@@ -57,6 +57,7 @@ object Keys {
     const val PREF_USE_IMPERIAL_UNITS: String = "prefUseImperialUnits"
     const val PREF_GPS_ONLY: String = "prefGpsOnly"
     const val PREF_OMIT_RESTS: String = "prefOmitRests"
+    const val PREF_AUTO_EXPORT_INTERVAL: String = "prefAutoExportInterval"
     const val PREF_ALTITUDE_SMOOTHING_VALUE: String = "prefAltitudeSmoothingValue"
     const val PREF_LOCATION_ACCURACY_THRESHOLD: String = "prefLocationAccuracyThreshold"
     const val PREF_LOCATION_AGE_THRESHOLD: String = "prefLocationAgeThreshold"
@@ -99,22 +100,25 @@ object Keys {
     // default values
     val DEFAULT_DATE: Date = Date(0L)
     const val DEFAULT_RFC2822_DATE: String = "Thu, 01 Jan 1970 01:00:00 +0100"  // --> Date(0)
-    const val ONE_HOUR_IN_MILLISECONDS: Int = 3600000
+    const val ONE_SECOND_IN_MILLISECONDS: Long = 1000
+    const val ONE_MINUTE_IN_MILLISECONDS: Long = 60 * ONE_SECOND_IN_MILLISECONDS
+    const val ONE_HOUR_IN_MILLISECONDS: Long = 60 * ONE_MINUTE_IN_MILLISECONDS
     const val EMPTY_STRING_RESOURCE: Int = 0
-    const val REQUEST_CURRENT_LOCATION_INTERVAL: Long = 1000L                   // 1 second in milliseconds
+    const val REQUEST_CURRENT_LOCATION_INTERVAL: Long = 1 * ONE_SECOND_IN_MILLISECONDS
-    const val ADD_WAYPOINT_TO_TRACK_INTERVAL: Long = 1000L                      // 1 second in milliseconds
+    const val ADD_WAYPOINT_TO_TRACK_INTERVAL: Long = 1 * ONE_SECOND_IN_MILLISECONDS
-    const val SAVE_TEMP_TRACK_INTERVAL: Long = 9000L                            // 9 seconds in milliseconds
+    const val SAVE_TEMP_TRACK_INTERVAL: Long = 30 * ONE_SECOND_IN_MILLISECONDS
-    const val SIGNIFICANT_TIME_DIFFERENCE: Long = 120000L                       // 2 minutes in milliseconds
+    const val SIGNIFICANT_TIME_DIFFERENCE: Long = 2 * ONE_MINUTE_IN_MILLISECONDS
-    const val STOP_OVER_THRESHOLD: Long = 300000L                               // 5 minutes in milliseconds
+    const val STOP_OVER_THRESHOLD: Long = 5 * ONE_MINUTE_IN_MILLISECONDS
     const val IMPLAUSIBLE_TRACK_START_SPEED: Double = 250.0                     // 250 km/h
     const val DEFAULT_LATITUDE: Double = 71.172500                              // latitude Nordkapp, Norway
     const val DEFAULT_LONGITUDE: Double = 25.784444                             // longitude Nordkapp, Norway
     const val DEFAULT_ACCURACY: Float = 300f                                    // in meters
     const val DEFAULT_ALTITUDE: Double = 0.0
     const val DEFAULT_TIME: Long = 0L
+    const val DEFAULT_AUTO_EXPORT_INTERVAL: Int = 24
     const val DEFAULT_ALTITUDE_SMOOTHING_VALUE: Int = 13
     const val DEFAULT_THRESHOLD_LOCATION_ACCURACY: Int = 30                     // 30 meters
-    const val DEFAULT_THRESHOLD_LOCATION_AGE: Long = 60000000000L               // one minute in nanoseconds
+    const val DEFAULT_THRESHOLD_LOCATION_AGE: Long = 60_000_000_000L               // one minute in nanoseconds
     const val DEFAULT_THRESHOLD_DISTANCE: Float = 15f                           // 15 meters
     const val DEFAULT_ZOOM_LEVEL: Double = 16.0
     const val MIN_NUMBER_OF_WAYPOINTS_FOR_ELEVATION_CALCULATION: Int = 5

app/src/main/java/org/y20k/trackbook/MainActivity.kt

@@ -17,12 +17,16 @@
 
 package org.y20k.trackbook
 
+import android.Manifest
+import android.app.Activity
 import android.content.SharedPreferences
+import android.content.pm.PackageManager
 import android.os.Build
 import android.os.Bundle
 import android.os.StrictMode
 import android.os.StrictMode.VmPolicy
 import androidx.appcompat.app.AppCompatActivity
+import androidx.core.app.ActivityCompat
 import androidx.navigation.fragment.NavHostFragment
 import androidx.navigation.ui.setupWithNavController
 import com.google.android.material.bottomnavigation.BottomNavigationView
@@ -31,6 +35,35 @@ import org.y20k.trackbook.helpers.AppThemeHelper
 import org.y20k.trackbook.helpers.LogHelper
 import org.y20k.trackbook.helpers.PreferencesHelper
 
+private const val REQUEST_EXTERNAL_STORAGE = 1
+private val PERMISSIONS_STORAGE = arrayOf<String>(
+    Manifest.permission.READ_EXTERNAL_STORAGE,
+    Manifest.permission.WRITE_EXTERNAL_STORAGE
+)
+
+/**
+ * Checks if the app has permission to write to device storage
+ *
+ * If the app does not has permission then the user will be prompted to grant permissions
+ *
+ * @param activity
+ */
+fun verifyStoragePermissions(activity: Activity?)
+{
+    // Check if we have write permission
+    val permission = ActivityCompat.checkSelfPermission(activity!!,
+        Manifest.permission.WRITE_EXTERNAL_STORAGE)
+    if (permission != PackageManager.PERMISSION_GRANTED)
+    {
+        // We don't have permission so prompt the user
+        ActivityCompat.requestPermissions(
+            activity,
+            PERMISSIONS_STORAGE,
+            REQUEST_EXTERNAL_STORAGE
+        )
+    }
+}
+
 /*
  * MainActivity class
  */
@@ -48,7 +81,7 @@ class MainActivity : AppCompatActivity() {
     /* Overrides onCreate from AppCompatActivity */
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
-
+        verifyStoragePermissions(this)
         // todo: remove after testing finished
         if (BuildConfig.DEBUG && Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
             StrictMode.setVmPolicy(

app/src/main/java/org/y20k/trackbook/MapFragment.kt

@@ -275,7 +275,7 @@ class MapFragment : Fragment(), YesNoDialog.YesNoDialogListener, MapOverlayHelpe
     private fun handleTrackingManagementMenu() {
         when (trackingState) {
             Keys.STATE_TRACKING_PAUSED -> resumeTracking()
-            Keys.STATE_TRACKING_ACTIVE -> trackerService.stopTracking()
+            Keys.STATE_TRACKING_ACTIVE -> trackerService.pauseTracking()
             Keys.STATE_TRACKING_NOT_STARTED -> startTracking()
         }
     }
@@ -296,9 +296,7 @@ class MapFragment : Fragment(), YesNoDialog.YesNoDialogListener, MapOverlayHelpe
         else
         {
             CoroutineScope(IO).launch {
-                track.save_json(activity as Context)
+                trackerService.saveTrackAndClear(activity as Context)
-                track.save_gpx(activity as Context)
-                trackerService.clearTrack()
                 withContext(Main) {
                     // step 4: open track in TrackFragement
                     openTrack(track)

app/src/main/java/org/y20k/trackbook/SettingsFragment.kt

@@ -123,6 +123,16 @@ class SettingsFragment : PreferenceFragmentCompat(), YesNoDialog.YesNoDialogList
         preferenceOmitRests.summaryOff = getString(R.string.pref_omit_rests_off)
         preferenceOmitRests.setDefaultValue(DEFAULT_OMIT_RESTS)
 
+        val preferenceAutoExportInterval: SeekBarPreference = SeekBarPreference(activity as Context)
+        preferenceAutoExportInterval.title = getString(R.string.pref_auto_export_interval_title)
+        preferenceAutoExportInterval.setIcon(R.drawable.ic_bar_chart_24)
+        preferenceAutoExportInterval.key = Keys.PREF_AUTO_EXPORT_INTERVAL
+        preferenceAutoExportInterval.summary = getString(R.string.pref_auto_export_interval_summary)
+        preferenceAutoExportInterval.showSeekBarValue = true
+        preferenceAutoExportInterval.min = 1
+        preferenceAutoExportInterval.max = 24
+        preferenceAutoExportInterval.setDefaultValue(Keys.DEFAULT_ALTITUDE_SMOOTHING_VALUE)
+
         // set up "Altitude Smoothing" preference
 //        val preferenceAltitudeSmoothingValue: SeekBarPreference = SeekBarPreference(activity as Context)
 //        preferenceAltitudeSmoothingValue.title = getString(R.string.pref_altitude_smoothing_value_title)
@@ -190,6 +200,7 @@ class SettingsFragment : PreferenceFragmentCompat(), YesNoDialog.YesNoDialogList
         screen.addPreference(preferenceCategoryAdvanced)
         screen.addPreference(preferenceOmitRests)
 //        screen.addPreference(preferenceAltitudeSmoothingValue)
+        screen.addPreference(preferenceAutoExportInterval)
         screen.addPreference(preferenceResetAdvanced)
         screen.addPreference(preferenceCategoryAbout)
         screen.addPreference(preferenceAppVersion)

app/src/main/java/org/y20k/trackbook/TrackFragment.kt

@@ -49,7 +49,7 @@ import org.y20k.trackbook.helpers.LogHelper
 import org.y20k.trackbook.helpers.MapOverlayHelper
 import org.y20k.trackbook.helpers.TrackHelper
 import org.y20k.trackbook.ui.TrackFragmentLayoutHolder
-
+import java.io.File
 
 class TrackFragment : Fragment(), RenameTrackDialog.RenameTrackListener, YesNoDialog.YesNoDialogListener, MapOverlayHelper.MarkerListener {
 
@@ -138,6 +138,7 @@ class TrackFragment : Fragment(), RenameTrackDialog.RenameTrackListener, YesNoDi
         if (result.resultCode == Activity.RESULT_OK && result.data != null)
         {
             val sourceUri: Uri = layout.track.get_gpx_file(activity as Context).toUri()
+            Toast.makeText(activity as Context, sourceUri.toString(), Toast.LENGTH_LONG).show()
             val targetUri: Uri? = result.data?.data
             if (targetUri != null)
             {
@@ -145,7 +146,8 @@ class TrackFragment : Fragment(), RenameTrackDialog.RenameTrackListener, YesNoDi
                 CoroutineScope(Dispatchers.IO).launch {
                     FileHelper.saveCopyOfFileSuspended(activity as Context, originalFileUri = sourceUri, targetFileUri = targetUri)
                 }
-                Toast.makeText(activity as Context, R.string.toast_message_save_gpx, Toast.LENGTH_LONG).show()
+                Toast.makeText(activity as Context, targetUri.toString(), Toast.LENGTH_LONG).show()
+                // Toast.makeText(activity as Context, R.string.toast_message_save_gpx, Toast.LENGTH_LONG).show()
             }
         }
     }
@@ -211,6 +213,16 @@ class TrackFragment : Fragment(), RenameTrackDialog.RenameTrackListener, YesNoDi
             LogHelper.e(TAG, "Unable to save GPX.")
             Toast.makeText(activity as Context, R.string.toast_message_install_file_helper, Toast.LENGTH_LONG).show()
         }
+        // val context = this.activity as Context
+        // val export_name: String = DateTimeHelper.convertToSortableDateString(layout.track.recordingStart) + Keys.GPX_FILE_EXTENSION
+        // val sourceUri: Uri = layout.track.get_gpx_file(activity as Context).toUri()
+        // // val targetUri: Uri = "file:///storage/emulated/0/Syncthing/GPX".toUri()
+        // val targetUri: Uri = File(File("/storage/emulated/0/Syncthing/GPX"), export_name).toUri()
+        // Toast.makeText(activity as Context, targetUri.toString(), Toast.LENGTH_LONG).show()
+        // CoroutineScope(Dispatchers.IO).launch {
+        //     FileHelper.saveCopyOfFileSuspended(activity as Context, originalFileUri = sourceUri, targetFileUri = targetUri)
+        // }
+        // Toast.makeText(activity as Context, R.string.toast_message_save_gpx, Toast.LENGTH_LONG).show()
     }
 
 

app/src/main/java/org/y20k/trackbook/TrackerService.kt

@@ -58,12 +58,11 @@ class TrackerService: Service(), SensorEventListener
     var useImperial: Boolean = false
     var gpsOnly: Boolean = false
     var omitRests: Boolean = true
+    var autoExportInterval: Int = Keys.DEFAULT_AUTO_EXPORT_INTERVAL
     var currentBestLocation: Location = LocationHelper.getDefaultLocation()
-    var lastSave: Date = Keys.DEFAULT_DATE
+    var lastTempSave: Date = Keys.DEFAULT_DATE
+    var lastAutoExport: Date = Keys.DEFAULT_DATE
     var stepCountOffset: Float = 0f
-    // The resumed flag will be true for the first point that is received after unpausing a
-    // recording, so that the distance travelled while paused is not added to the track.distance.
-    var resumed: Boolean = false
     var track: Track = Track()
     var gpsLocationListenerRegistered: Boolean = false
     var networkLocationListenerRegistered: Boolean = false
@@ -152,7 +151,7 @@ class TrackerService: Service(), SensorEventListener
     fun clearTrack()
     {
         track = Track()
-        resumed = false
+        stepCountOffset = 0f
         FileHelper.delete_temp_file(this as Context)
         trackingState = Keys.STATE_TRACKING_NOT_STARTED
         PreferencesHelper.saveTrackingState(trackingState)
@@ -237,6 +236,7 @@ class TrackerService: Service(), SensorEventListener
         gpsOnly = PreferencesHelper.loadGpsOnly()
         useImperial = PreferencesHelper.loadUseImperialUnits()
         omitRests = PreferencesHelper.loadOmitRests()
+        autoExportInterval = PreferencesHelper.loadAutoExportInterval()
 
         locationManager = getSystemService(Context.LOCATION_SERVICE) as LocationManager
         sensorManager = this.getSystemService(Context.SENSOR_SERVICE) as SensorManager
@@ -259,7 +259,7 @@ class TrackerService: Service(), SensorEventListener
         LogHelper.i(TAG, "onDestroy called.")
         if (trackingState == Keys.STATE_TRACKING_ACTIVE)
         {
-            stopTracking()
+            pauseTracking()
         }
         stopForeground(true)
         notificationManager.cancel(Keys.TRACKER_SERVICE_NOTIFICATION_ID) // this call was not necessary prior to Android 12
@@ -305,7 +305,7 @@ class TrackerService: Service(), SensorEventListener
         }
         else if (intent.action == Keys.ACTION_STOP)
         {
-            stopTracking()
+            pauseTracking()
         }
         else if (intent.action == Keys.ACTION_START)
         {
@@ -363,17 +363,31 @@ class TrackerService: Service(), SensorEventListener
     {
         // load temp track - returns an empty track if there is no temp file.
         track = load_temp_track(this)
-        // try to mark last waypoint as stopover
+        if (track.wayPoints.isNotEmpty()) {
-        if (track.wayPoints.size > 0) {
+            track.wayPoints.last().isStopOver = true
-            val lastWayPointIndex = track.wayPoints.size - 1
-            track.wayPoints[lastWayPointIndex].isStopOver = true
         }
-        resumed = true
+        track.resumed = true
-        // calculate length of recording break
+        track.recordingPaused += (GregorianCalendar.getInstance().time.time - track.recordingStop.time)
-        track.recordingPaused += TrackHelper.calculateDurationOfPause(track.recordingStop)
         startTracking(newTrack = false)
     }
 
+    fun saveTrackAndClear(context: Context)
+    {
+        this.pauseTracking()
+        track.save_all_files(context)
+        this.clearTrack()
+    }
+
+    fun saveTrackAndStartNew(context: Context)
+    {
+        if (track.wayPoints.isNotEmpty())
+        {
+            track.save_all_files(context)
+        }
+        track = Track()
+        FileHelper.delete_temp_file(this as Context)
+    }
+
     private fun startStepCounter()
     {
         val stepCounterAvailable = sensorManager.registerListener(this, sensorManager.getDefaultSensor(Sensor.TYPE_STEP_COUNTER), SensorManager.SENSOR_DELAY_UI)
@@ -390,7 +404,6 @@ class TrackerService: Service(), SensorEventListener
         // set up new track
         if (newTrack) {
             track = Track()
-            resumed = false
             stepCountOffset = 0f
         }
         trackingState = Keys.STATE_TRACKING_ACTIVE
@@ -400,11 +413,10 @@ class TrackerService: Service(), SensorEventListener
         startForeground(Keys.TRACKER_SERVICE_NOTIFICATION_ID, displayNotification())
     }
 
-    fun stopTracking()
+    fun pauseTracking()
     {
         track.recordingStop = GregorianCalendar.getInstance().time
-        val context: Context = this
+        CoroutineScope(IO).launch { track.save_temp_suspended(this@TrackerService) }
-        CoroutineScope(IO).launch { track.save_temp_suspended(context) }
 
         trackingState = Keys.STATE_TRACKING_PAUSED
         PreferencesHelper.saveTrackingState(trackingState)
@@ -439,6 +451,9 @@ class TrackerService: Service(), SensorEventListener
             Keys.PREF_OMIT_RESTS -> {
                 omitRests = PreferencesHelper.loadOmitRests()
             }
+            Keys.PREF_AUTO_EXPORT_INTERVAL -> {
+                autoExportInterval = PreferencesHelper.loadAutoExportInterval()
+            }
         }
     }
     /*
@@ -462,9 +477,10 @@ class TrackerService: Service(), SensorEventListener
     {
         override fun run() {
             // add waypoint to track - step count is continuously updated in onSensorChanged
-            val success = track.add_waypoint(currentBestLocation, omitRests, resumed)
+            val success = track.add_waypoint(currentBestLocation, omitRests, track.resumed)
+            val now: Date = GregorianCalendar.getInstance().time
             if (success) {
-                resumed = false
+                track.resumed = false
 
                 // store previous smoothed altitude
                 val previousAltitude: Double = altitudeValues.getAverage()
@@ -488,11 +504,14 @@ class TrackerService: Service(), SensorEventListener
                 }
 
                 // save a temp track
-                val now: Date = GregorianCalendar.getInstance().time
+                if (now.time - lastTempSave.time > Keys.SAVE_TEMP_TRACK_INTERVAL) {
-                if (now.time - lastSave.time > Keys.SAVE_TEMP_TRACK_INTERVAL) {
+                    lastTempSave = now
-                    lastSave = now
                     CoroutineScope(IO).launch { track.save_temp_suspended(this@TrackerService) }
                 }
+
+            }
+            if (now.time - track.recordingStart.time > (autoExportInterval * Keys.ONE_HOUR_IN_MILLISECONDS)) {
+                saveTrackAndStartNew(this@TrackerService)
             }
             // update notification
             displayNotification()

app/src/main/java/org/y20k/trackbook/core/Track.kt

@@ -16,23 +16,36 @@
 
 package org.y20k.trackbook.core
 
+import android.Manifest
+import android.app.Activity
 import android.content.Context
+import android.content.pm.PackageManager
 import android.location.Location
+import android.net.Uri
+import android.os.Handler
+import android.os.Looper
 import android.os.Parcelable
 import android.util.Log
+import android.widget.Toast
 import androidx.annotation.Keep
+import androidx.core.app.ActivityCompat
+import androidx.core.net.toUri
 import com.google.gson.annotations.Expose
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.parcelize.Parcelize
+import org.y20k.trackbook.Keys
+import org.y20k.trackbook.R
+import org.y20k.trackbook.helpers.DateTimeHelper
+import org.y20k.trackbook.helpers.FileHelper
+import org.y20k.trackbook.helpers.LocationHelper
 import java.io.File
 import java.text.SimpleDateFormat
 import java.util.*
 import kotlin.coroutines.resume
 import kotlin.coroutines.suspendCoroutine
 import kotlin.random.Random
-import kotlinx.parcelize.Parcelize
-import org.y20k.trackbook.Keys
-import org.y20k.trackbook.helpers.DateTimeHelper
-import org.y20k.trackbook.helpers.FileHelper
-import org.y20k.trackbook.helpers.LocationHelper
 
 /*
  * Track data class
@@ -50,6 +63,9 @@ data class Track (
     @Expose var recordingStart: Date = GregorianCalendar.getInstance().time,
     @Expose var dateString: String = DateTimeHelper.convertToReadableDate(recordingStart),
     @Expose var recordingStop: Date = recordingStart,
+    // The resumed flag will be true for the first point that is received after unpausing a
+    // recording, so that the distance travelled while paused is not added to the track.distance.
+    @Expose var resumed: Boolean = false,
     @Expose var maxAltitude: Double = 0.0,
     @Expose var minAltitude: Double = 0.0,
     @Expose var positiveElevation: Double = 0.0,
@@ -165,22 +181,29 @@ data class Track (
         return File(context.getExternalFilesDir(Keys.FOLDER_GPX), basename)
     }
 
+    fun get_export_gpx_file(context: Context): File
+    {
+        val basename: String = DateTimeHelper.convertToSortableDateString(this.recordingStart) + Keys.GPX_FILE_EXTENSION
+        return File(File("/storage/emulated/0/Syncthing/GPX"), basename)
+    }
+
     fun get_json_file(context: Context): File
     {
         val basename: String = this.id.toString() + Keys.TRACKBOOK_FILE_EXTENSION
         return File(context.getExternalFilesDir(Keys.FOLDER_TRACKS), basename)
     }
 
-    fun save_both(context: Context)
+    fun save_all_files(context: Context)
     {
         this.save_json(context)
         this.save_gpx(context)
+        this.save_export_gpx(context)
     }
 
-    suspend fun save_both_suspended(context: Context)
+    suspend fun save_all_files_suspended(context: Context)
     {
         return suspendCoroutine { cont ->
-            cont.resume(this.save_both(context))
+            cont.resume(this.save_all_files(context))
         }
     }
 
@@ -198,6 +221,23 @@ data class Track (
         }
     }
 
+    fun save_export_gpx(context: Context)
+    {
+        val gpx: String = this.to_gpx()
+        val outputfile: File = this.get_export_gpx_file(context)
+        FileHelper.write_text_file_noblank(gpx, outputfile)
+        Handler(Looper.getMainLooper()).post {
+            Toast.makeText(context, outputfile.toString(), Toast.LENGTH_SHORT).show()
+        }
+    }
+
+    suspend fun save_export_gpx_suspended(context: Context)
+    {
+        return suspendCoroutine { cont ->
+            cont.resume(this.save_export_gpx(context))
+        }
+    }
+
     fun save_json(context: Context)
     {
         val json: String = this.to_json()

app/src/main/java/org/y20k/trackbook/helpers/FileHelper.kt

@@ -55,7 +55,8 @@ object FileHelper {
     suspend fun renameTrackSuspended(context: Context, track: Track, newName: String) {
         return suspendCoroutine { cont ->
             track.name = newName
-            track.save_both(context)
+            track.save_json(context)
+            track.save_gpx(context)
             cont.resume(Unit)
         }
     }
@@ -71,7 +72,7 @@ object FileHelper {
 
 
     /* Copies file to specified target */
-    private fun copyFile(context: Context, originalFileUri: Uri, targetFileUri: Uri, deleteOriginal: Boolean = false) {
+    fun copyFile(context: Context, originalFileUri: Uri, targetFileUri: Uri, deleteOriginal: Boolean = false) {
         val inputStream = context.contentResolver.openInputStream(originalFileUri)
         val outputStream = context.contentResolver.openOutputStream(targetFileUri)
         if (outputStream != null) {

app/src/main/java/org/y20k/trackbook/helpers/PreferencesHelper.kt

@@ -71,9 +71,11 @@ object PreferencesHelper {
         return sharedPreferences.getBoolean(Keys.PREF_OMIT_RESTS, true)
     }
 
-//    /* Load altitude smoothing value */
+    fun loadAutoExportInterval(): Int {
+        return sharedPreferences.getInt(Keys.PREF_AUTO_EXPORT_INTERVAL, Keys.DEFAULT_AUTO_EXPORT_INTERVAL)
+    }
+
 //    fun loadAltitudeSmoothingValue(): Int {
-//        // load current setting
 //        return sharedPreferences.getInt(Keys.PREF_ALTITUDE_SMOOTHING_VALUE, Keys.DEFAULT_ALTITUDE_SMOOTHING_VALUE)
 //    }
 

app/src/main/java/org/y20k/trackbook/helpers/TrackHelper.kt

@@ -32,10 +32,6 @@ object TrackHelper {
 
     /* Adds given locatiom as waypoint to track */
 
-
-    /* Calculates time passed since last stop of recording */
-    fun calculateDurationOfPause(recordingStop: Date): Long = GregorianCalendar.getInstance().time.time - recordingStop.time
-
     /* Toggles starred flag for given position */
     fun toggle_waypoint_starred(context: Context, track: Track, latitude: Double, longitude: Double)
     {

app/src/main/java/org/y20k/trackbook/helpers/UiHelper.kt

@@ -104,7 +104,6 @@ object UiHelper {
 
         override fun getSwipeDirs(recyclerView: RecyclerView, viewHolder: RecyclerView.ViewHolder): Int {
             // disable swipe for statistics element
-            if (viewHolder is TracklistAdapter.ElementStatisticsViewHolder) return 0
             return super.getSwipeDirs(recyclerView, viewHolder)
         }
 

app/src/main/java/org/y20k/trackbook/tracklist/TracklistAdapter.kt

@@ -75,64 +75,39 @@ class TracklistAdapter(private val fragment: Fragment) : RecyclerView.Adapter<Re
     /* Overrides onCreateViewHolder from RecyclerView.Adapter */
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerView.ViewHolder
     {
-        when (viewType) {
+        val v = LayoutInflater.from(parent.context).inflate(R.layout.element_track, parent, false)
-            Keys.VIEW_TYPE_STATISTICS -> {
+        return ElementTrackViewHolder(v)
-                val v = LayoutInflater.from(parent.context).inflate(R.layout.element_statistics, parent, false)
-                return ElementStatisticsViewHolder(v)
-            }
-            else -> {
-                val v = LayoutInflater.from(parent.context).inflate(R.layout.element_track, parent, false)
-                return ElementTrackViewHolder(v)
-            }
-        }
     }
 
 
     /* Overrides getItemViewType */
     override fun getItemViewType(position: Int): Int {
-        if (position == 0) {
+        return Keys.VIEW_TYPE_TRACK
-            return Keys.VIEW_TYPE_STATISTICS
-        } else {
-            return Keys.VIEW_TYPE_TRACK
-        }
     }
 
 
     /* Overrides getItemCount from RecyclerView.Adapter */
     override fun getItemCount(): Int {
-        // +1 because of the total statistics element
+        return tracklist.tracks.size
-        return tracklist.tracks.size + 1
     }
 
 
     /* Overrides onBindViewHolder from RecyclerView.Adapter */
     override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int)
     {
-        when (holder)
+        val positionInTracklist: Int = position
-        {
+        val elementTrackViewHolder: ElementTrackViewHolder = holder as ElementTrackViewHolder
-            // CASE STATISTICS ELEMENT
+        elementTrackViewHolder.trackNameView.text = tracklist.tracks[positionInTracklist].name
-            is ElementStatisticsViewHolder -> {
+        elementTrackViewHolder.trackDataView.text = createTrackDataString(positionInTracklist)
-                val elementStatisticsViewHolder: ElementStatisticsViewHolder = holder
+        when (tracklist.tracks[positionInTracklist].starred) {
-                elementStatisticsViewHolder.totalDistanceView.text = LengthUnitHelper.convertDistanceToString(tracklist.get_total_distance(), useImperial)
+            true -> elementTrackViewHolder.starButton.setImageDrawable(ContextCompat.getDrawable(context, R.drawable.ic_star_filled_24dp))
-            }
+            false -> elementTrackViewHolder.starButton.setImageDrawable(ContextCompat.getDrawable(context, R.drawable.ic_star_outline_24dp))
-
+        }
-            // CASE TRACK ELEMENT
+        elementTrackViewHolder.trackElement.setOnClickListener {
-            is ElementTrackViewHolder -> {
+            tracklistListener.onTrackElementTapped(tracklist.tracks[positionInTracklist])
-                val positionInTracklist: Int = position - 1 // Element 0 is the statistics element.
+        }
-                val elementTrackViewHolder: ElementTrackViewHolder = holder
+        elementTrackViewHolder.starButton.setOnClickListener {
-                elementTrackViewHolder.trackNameView.text = tracklist.tracks[positionInTracklist].name
+            toggleStarred(it, positionInTracklist)
-                elementTrackViewHolder.trackDataView.text = createTrackDataString(positionInTracklist)
-                when (tracklist.tracks[positionInTracklist].starred) {
-                    true -> elementTrackViewHolder.starButton.setImageDrawable(ContextCompat.getDrawable(context, R.drawable.ic_star_filled_24dp))
-                    false -> elementTrackViewHolder.starButton.setImageDrawable(ContextCompat.getDrawable(context, R.drawable.ic_star_outline_24dp))
-                }
-                elementTrackViewHolder.trackElement.setOnClickListener {
-                    tracklistListener.onTrackElementTapped(tracklist.tracks[positionInTracklist])
-                }
-                elementTrackViewHolder.starButton.setOnClickListener {
-                    toggleStarred(it, positionInTracklist)
-                }
-            }
         }
     }
 
@@ -140,18 +115,16 @@ class TracklistAdapter(private val fragment: Fragment) : RecyclerView.Adapter<Re
     /* Get track name for given position */
     fun getTrackName(positionInRecyclerView: Int): String
     {
-        // Minus 1 because first position is always the statistics element
+        return tracklist.tracks[positionInRecyclerView].name
-        return tracklist.tracks[positionInRecyclerView - 1].name
     }
 
-    fun delete_track_at_position(context: Context, ui_index: Int)
+    fun delete_track_at_position(context: Context, index: Int)
     {
-        val track_index = ui_index - 1 // position 0 is the statistics element
+        val track = tracklist.tracks[index]
-        val track = tracklist.tracks[track_index]
         track.delete(context)
         tracklist.tracks.remove(track)
-        notifyItemChanged(0)
+        notifyItemRemoved(index)
-        notifyItemRemoved(ui_index)
+        notifyItemRangeChanged(index, this.itemCount);
     }
 
     suspend fun delete_track_at_position_suspended(context: Context, position: Int)
@@ -167,10 +140,12 @@ class TracklistAdapter(private val fragment: Fragment) : RecyclerView.Adapter<Re
         if (index == -1) {
             return
         }
-        delete_track_at_position(context, index + 1)
+        tracklist.tracks[index].delete(context)
+        tracklist.tracks.removeAt(index)
+        notifyItemRemoved(index)
+        notifyItemRangeChanged(index, this.itemCount);
     }
 
-    /* Returns if the adapter is empty */
     fun isEmpty(): Boolean {
         return tracklist.tracks.size == 0
     }
@@ -249,16 +224,4 @@ class TracklistAdapter(private val fragment: Fragment) : RecyclerView.Adapter<Re
     /*
      * End of inner class
      */
-
-
-    /*
-     * Inner class: ViewHolder for a statistics element
-     */
-    inner class ElementStatisticsViewHolder (elementStatisticsLayout: View): RecyclerView.ViewHolder(elementStatisticsLayout) {
-        val totalDistanceView: TextView = elementStatisticsLayout.findViewById(R.id.total_distance_data)
-    }
-    /*
-     * End of inner class
-     */
-
 }

app/src/main/java/org/y20k/trackbook/ui/TrackFragmentLayoutHolder.kt

@@ -187,7 +187,7 @@ data class TrackFragmentLayoutHolder(private var context: Context, private var m
             mapView.overlays.add(trackSpecialMarkersOverlay)
         }
         // save track
-        CoroutineScope(Dispatchers.IO).launch { track.save_both_suspended(context) }
+        CoroutineScope(Dispatchers.IO).launch { track.save_all_files_suspended(context) }
     }
 
 

app/src/main/res/values/strings.xml

@@ -85,6 +85,8 @@
     <string name="pref_accuracy_threshold_title">Accuracy Threshold</string>
     <string name="pref_altitude_smoothing_value_summary" translatable="false">Number of waypoints used to smooth the elevation curve.</string>
     <string name="pref_altitude_smoothing_value_title" translatable="false">Altitude Smoothing</string>
+    <string name="pref_auto_export_interval_summary">Automatically export GPX file after this many hours.</string>
+    <string name="pref_auto_export_interval_title">Auto Export Interval</string>
     <string name="pref_advanced_title">Advanced</string>
     <string name="pref_delete_non_starred_summary">Delete all recordings in \"Tracks\" that are not starred.</string>
     <string name="pref_delete_non_starred_title">Delete Non-Starred Recordings</string>
@@ -98,7 +100,7 @@
     <string name="pref_imperial_measurement_units_title">Use Imperial Measurements</string>
     <string name="pref_omit_rests_on">Waypoints will not be recorded if they are too close to the previous waypoint.</string>
     <string name="pref_omit_rests_off">All waypoints will be recorded, even while standing still.</string>
-    <string name="pref_omit_rests_title">Omit points during rests</string>
+    <string name="pref_omit_rests_title">Omit repeated points</string>
     <string name="pref_report_issue_summary">Report bugs and suggest improvements on GitHub.</string>
     <string name="pref_report_issue_title">Report Issue</string>
     <string name="pref_reset_advanced_summary">Reset advanced settings to defaults.</string>