KMZ exporting: checks waypoints images exists before parse kml.

src/main/java/de/dennisguse/opentracks/io/file/exporter/KmlTrackWriter.java

@@ -32,6 +32,7 @@ import de.dennisguse.opentracks.content.data.TrackPoint;
 import de.dennisguse.opentracks.content.data.Waypoint;
 import de.dennisguse.opentracks.content.provider.ContentProviderUtils;
 import de.dennisguse.opentracks.content.sensor.SensorDataSet;
+import de.dennisguse.opentracks.util.FileUtils;
 import de.dennisguse.opentracks.util.StringUtils;
 
 /**
@@ -162,7 +163,8 @@ public class KmlTrackWriter implements TrackWriter {
     @Override
     public void writeWaypoint(Waypoint waypoint) {
         if (printWriter != null && exportTrackDetail) {
-            if (waypoint.hasPhoto() && exportPhotos) {
+            boolean existsPhoto = FileUtils.getPhotoFileIfExists(context, waypoint.getTrackId(), waypoint.getPhotoURI()) != null;
+            if (waypoint.hasPhoto() && exportPhotos && existsPhoto) {
                 float heading = getHeading(waypoint.getTrackId(), waypoint.getLocation());
                 writePhotoOverlay(waypoint.getName(), waypoint.getCategory(), waypoint.getDescription(), waypoint.getLocation(), waypoint.getPhotoUrl(), heading);
             } else {

src/main/java/de/dennisguse/opentracks/io/file/exporter/KmzTrackExporter.java

@@ -112,7 +112,11 @@ public class KmzTrackExporter implements TrackExporter {
                         }
                         Waypoint waypoint = contentProviderUtils.createWaypoint(cursor);
                         if (waypoint.hasPhoto()) {
-                            addImage(context, zipOutputStream, waypoint.getPhotoUrl());
+                            Uri uriPhoto = waypoint.getPhotoURI();
+                            boolean existsPhoto = FileUtils.getPhotoFileIfExists(context, track.getId(), uriPhoto) != null;
+                            if (existsPhoto) {
+                                addImage(context, zipOutputStream, uriPhoto);
+                            }
                         }
 
                         cursor.moveToNext();
@@ -122,9 +126,7 @@ public class KmzTrackExporter implements TrackExporter {
         }
     }
 
-    private void addImage(Context context, ZipOutputStream zipOutputStream, String photoUrl) throws IOException {
-        Uri uri = Uri.parse(photoUrl);
-
+    private void addImage(Context context, ZipOutputStream zipOutputStream, Uri uri) throws IOException {
         try (InputStream inputStream = context.getContentResolver().openInputStream(uri)) {
             ZipEntry zipEntry = new ZipEntry(buildKmzImageFilePath(uri));
             zipOutputStream.putNextEntry(zipEntry);

src/main/java/de/dennisguse/opentracks/io/file/importer/AbstractFileTrackImporter.java

@@ -380,20 +380,8 @@ abstract class AbstractFileTrackImporter extends DefaultHandler implements Track
             return null;
         }
 
-        Uri externalPhotoUri = Uri.parse(externalPhotoUrl);
-        if (externalPhotoUri == null) {
-            Log.w(TAG, "Could not parse external photo url.");
-            return null;
-        }
-        String filename = externalPhotoUri.getLastPathSegment();
-        if (filename == null) {
-            Log.w(TAG, "External photo contains no filename.");
-            return null;
-        }
-
-        File dir = FileUtils.getPhotoDir(context, importTrackId);
-        File file = new File(dir, filename);
-        if (file.exists()) {
+        File file = FileUtils.getPhotoFileIfExists(context, importTrackId, Uri.parse(externalPhotoUrl));
+        if (file != null) {
             Uri photoUri = FileUtils.getUriForFile(context, file);
             return "" + photoUri;
         }

src/main/java/de/dennisguse/opentracks/util/FileUtils.java

@@ -250,4 +250,34 @@ public class FileUtils {
     public static Uri getUriForFile(Context context, File file) {
         return FileProvider.getUriForFile(context, FileUtils.FILEPROVIDER, file);
     }
+
+    /**
+     * Checks that there is a file inside track photo directory whose name is the same that uri file.
+     * If there is a file inside photo directory whose name is the same that uri then returns File. Otherwise returns null.
+     *
+     * @param context the Context.
+     * @param trackId the id of the Track.
+     * @param uri     the uri to check.
+     * @return        File object or null.
+     */
+    public static File getPhotoFileIfExists(Context context, long trackId, Uri uri) {
+        if (uri == null) {
+            Log.w(TAG, "URI object is null.");
+            return null;
+        }
+
+        String filename = uri.getLastPathSegment();
+        if (filename == null) {
+            Log.w(TAG, "External photo contains no filename.");
+            return null;
+        }
+
+        File dir = FileUtils.getPhotoDir(context, trackId);
+        File file = new File(dir, filename);
+        if (!file.exists()) {
+            return null;
+        }
+
+        return file;
+    }
 }