Download all button implementation

OsmAnd-java/src/main/java/net/osmand/map/OsmandRegions.java

@@ -10,6 +10,7 @@ import net.osmand.binary.BinaryMapIndexReader.TagValuePair;
 import net.osmand.data.LatLon;
 import net.osmand.data.QuadRect;
 import net.osmand.data.QuadTree;
+import net.osmand.map.WorldRegion.RegionBoundingBox;
 import net.osmand.util.Algorithms;
 import net.osmand.util.MapAlgorithms;
 import net.osmand.util.MapUtils;
@@ -436,6 +437,7 @@ public class OsmandRegions {
 			cx /= object.getPointsLength();
 			cy /= object.getPointsLength();
 			rd.regionCenter = new LatLon(MapUtils.get31LatitudeY((int) cy), MapUtils.get31LongitudeX((int) cx));
+			rd.boundingBox = findBoundingBox(object);
 		}
 
 		rd.regionParentFullName = mapIndexFields.get(mapIndexFields.parentFullName, object);
@@ -461,6 +463,43 @@ public class OsmandRegions {
 		return rd;
 	}
 
+	private RegionBoundingBox findBoundingBox(BinaryMapDataObject object) {
+		if (object.getPointsLength() == 0) {
+			return new RegionBoundingBox(0, 0, 0, 0);
+		}
+
+		double currentX = object.getPoint31XTile(0);
+		double currentY = object.getPoint31YTile(0);
+		double minX = currentX;
+		double maxX = currentX;
+		double minY = currentY;
+		double maxY = currentY;
+
+		if (object.getPointsLength() > 1) {
+			for (int i = 1; i < object.getPointsLength(); i++) {
+				currentX = object.getPoint31XTile(i);
+				currentY = object.getPoint31YTile(i);
+				if (currentX > maxX) {
+					maxX = currentX;
+				} else if (currentX < minX) {
+					minX = currentX;
+				}
+				if (currentY > maxY) {
+					maxY = currentY;
+				} else if (currentY < minY) {
+					minY = currentY;
+				}
+			}
+		}
+
+		minX = MapUtils.get31LongitudeX((int) minX);
+		maxX = MapUtils.get31LongitudeX((int) maxX);
+		double revertedMinY = MapUtils.get31LatitudeY((int) maxY);
+		double revertedMaxY = MapUtils.get31LatitudeY((int) minY);
+
+		return new RegionBoundingBox(minX, maxX, revertedMinY, revertedMaxY);
+	}
+
 	private String getSearchIndex(BinaryMapDataObject object) {
 		MapIndex mi = object.getMapIndex();
 		TIntObjectIterator<String> it = object.getObjectNames().iterator();

OsmAnd-java/src/main/java/net/osmand/map/WorldRegion.java

@@ -40,6 +40,7 @@ public class WorldRegion implements Serializable {
 	protected String regionDownloadName;
 	protected boolean regionMapDownload;
 	protected LatLon regionCenter;
+	protected RegionBoundingBox boundingBox;
 
 	public static class RegionParams {
 		protected String regionLeftHandDriving;
@@ -182,4 +183,32 @@ public class WorldRegion implements Serializable {
 		}
 		return res;
 	}
+
+	public static boolean isFirstRegionInsideTheSecond(WorldRegion first,
+	                                                   WorldRegion second) {
+		RegionBoundingBox bbox1 = first.boundingBox;
+		RegionBoundingBox bbox2 = second.boundingBox;
+		if ((bbox1.minX > bbox2.minX) && (bbox1.maxX < bbox2.maxX)) {
+			if ((bbox1.minY > bbox2.minY) && (bbox1.maxY < bbox2.maxY)) {
+				return true;
+			}
+		}
+		return false;
+	}
+
+	public static class RegionBoundingBox {
+
+		double minX;
+		double maxX;
+		double minY;
+		double maxY;
+
+		public RegionBoundingBox(double minX, double maxX, double minY, double maxY) {
+			this.minX = minX;
+			this.maxX = maxX;
+			this.minY = minY;
+			this.maxY = maxY;
+		}
+
+	}
 }

OsmAnd/res/values/strings.xml

@@ -12,6 +12,8 @@
 
 -->
 
+    <string name="delete_number_files_question">Delete %1$d files?</string>
+    <string name="shared_strings_all_regions">All regions</string>
     <string name="activity_type_car_name">Car</string>
     <string name="activity_type_motorbike_name">Motorbike</string>
     <string name="activity_type_offroad_name">Off-road</string>

OsmAnd/src/net/osmand/plus/download/AbstractDownloadActivity.java

@@ -17,7 +17,7 @@ public class AbstractDownloadActivity extends ActionBarProgressActivity {
 		downloadValidationManager.startDownload(this, indexItem);
 	}
 
-	public void makeSureUserCancelDownload(IndexItem item) {
+	public void makeSureUserCancelDownload(DownloadItem item) {
 		downloadValidationManager.makeSureUserCancelDownload(this, item);
 	}
 }

OsmAnd/src/net/osmand/plus/download/CustomIndexItem.java

@@ -56,7 +56,8 @@ public class CustomIndexItem extends IndexItem {
 	}
 
 	@Override
-	public File getTargetFile(OsmandApplication ctx) {
+	@NonNull
+	public File getTargetFile(@NonNull OsmandApplication ctx) {
 		String basename = getTranslatedBasename();
 		if (!Algorithms.isEmpty(subfolder)) {
 			basename = subfolder + "/" + basename;

OsmAnd/src/net/osmand/plus/download/DownloadActivity.java

@@ -1,7 +1,6 @@
 package net.osmand.plus.download;
 
 import android.Manifest;
-import android.annotation.SuppressLint;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.content.Intent;

OsmAnd/src/net/osmand/plus/download/DownloadActivityType.java

@@ -18,6 +18,7 @@ import java.io.IOException;
 import java.net.URLEncoder;
 import java.text.ParseException;
 import java.text.SimpleDateFormat;
+import java.util.Collection;
 import java.util.Date;
 import java.util.HashMap;
 import java.util.Locale;
@@ -113,6 +114,10 @@ public class DownloadActivityType {
 	public static DownloadActivityType getIndexType(String tagName) {
 		return byTag.get(tagName);
 	}
+
+	public static Collection<DownloadActivityType> values() {
+		return byTag.values();
+	}
 	
 	protected static String addVersionToExt(String ext, int version) {
 		return "_" + version + ext;
@@ -318,7 +323,7 @@ public class DownloadActivityType {
 		}
 	}
 
-	public String getVisibleDescription(IndexItem indexItem, Context ctx) {
+	public String getVisibleDescription(DownloadItem downloadItem, Context ctx) {
 		if (this == SRTM_COUNTRY_FILE) {
 			return ctx.getString(R.string.download_srtm_maps);
 		} else if (this == WIKIPEDIA_FILE) {
@@ -337,20 +342,20 @@ public class DownloadActivityType {
 		return "";
 	}
 	
-	public String getVisibleName(IndexItem indexItem, Context ctx, OsmandRegions osmandRegions, boolean includingParent) {
+	public String getVisibleName(DownloadItem downloadItem, Context ctx, OsmandRegions osmandRegions, boolean includingParent) {
 		if (this == VOICE_FILE) {
-			String fileName = indexItem.fileName;
+			String fileName = downloadItem.getFileName();
 			if (fileName.endsWith(IndexConstants.VOICE_INDEX_EXT_ZIP)) {
-				return FileNameTranslationHelper.getVoiceName(ctx, getBasename(indexItem));
+				return FileNameTranslationHelper.getVoiceName(ctx, getBasename(downloadItem));
 			} else if (fileName.endsWith(IndexConstants.TTSVOICE_INDEX_EXT_JS)) {
-				return FileNameTranslationHelper.getVoiceName(ctx, getBasename(indexItem));
+				return FileNameTranslationHelper.getVoiceName(ctx, getBasename(downloadItem));
 			}
-			return getBasename(indexItem);
+			return getBasename(downloadItem);
 		}
 		if (this == FONT_FILE) {
-			return FileNameTranslationHelper.getFontName(ctx, getBasename(indexItem));
+			return FileNameTranslationHelper.getFontName(ctx, getBasename(downloadItem));
 		}
-		final String basename = getBasename(indexItem);
+		final String basename = getBasename(downloadItem);
 		if (basename.endsWith(FileNameTranslationHelper.WIKI_NAME)) {
 			return FileNameTranslationHelper.getWikiName(ctx, basename);
 		}
@@ -442,8 +447,8 @@ public class DownloadActivityType {
 	}
 
 
-	public String getBasename(IndexItem indexItem) {
+	public String getBasename(DownloadItem downloadItem) {
-		String fileName = indexItem.fileName;
+		String fileName = downloadItem.getFileName();
 		if (fileName.endsWith(IndexConstants.EXTRA_ZIP_EXT)) {
 			return fileName.substring(0, fileName.length() - IndexConstants.EXTRA_ZIP_EXT.length());
 		}
@@ -458,7 +463,7 @@ public class DownloadActivityType {
 		if (fileName.endsWith(IndexConstants.SQLITE_EXT)) {
 			return fileName.substring(0, fileName.length() - IndexConstants.SQLITE_EXT.length());
 		}
-		if (indexItem.getType() == WIKIVOYAGE_FILE &&
+		if (downloadItem.getType() == WIKIVOYAGE_FILE &&
 				fileName.endsWith(IndexConstants.BINARY_WIKIVOYAGE_MAP_INDEX_EXT)) {
 			return fileName.substring(0, fileName.length() - IndexConstants.BINARY_WIKIVOYAGE_MAP_INDEX_EXT.length());
 		}

OsmAnd/src/net/osmand/plus/download/DownloadIndexesThread.java

@@ -239,6 +239,16 @@ public class DownloadIndexesThread {
 		}
 	}
 
+	public void cancelDownload(DownloadItem item) {
+		if (item instanceof MultipleIndexItem) {
+			MultipleIndexItem multipleIndexItem = (MultipleIndexItem) item;
+			cancelDownload(multipleIndexItem.getAllIndexes());
+		} else if (item instanceof IndexItem) {
+			IndexItem indexItem = (IndexItem) item;
+			cancelDownload(indexItem);
+		}
+	}
+
 	public void cancelDownload(IndexItem item) {
 		app.logMapDownloadEvent("cancel", item);
 		if (currentDownloadingItem == item) {

OsmAnd/src/net/osmand/plus/download/DownloadItem.java

@@ -0,0 +1,76 @@
+package net.osmand.plus.download;
+
+import android.content.Context;
+
+import androidx.annotation.NonNull;
+
+import net.osmand.map.OsmandRegions;
+import net.osmand.plus.OsmandApplication;
+import net.osmand.plus.R;
+
+import java.io.File;
+import java.util.List;
+import java.util.Locale;
+
+public abstract class DownloadItem {
+
+	protected DownloadActivityType type;
+	protected DownloadResourceGroup relatedGroup;
+
+	public DownloadItem(DownloadActivityType type) {
+		this.type = type;
+	}
+
+	public DownloadActivityType getType() {
+		return type;
+	}
+
+	public void setRelatedGroup(DownloadResourceGroup relatedGroup) {
+		this.relatedGroup = relatedGroup;
+	}
+
+	public DownloadResourceGroup getRelatedGroup() {
+		return relatedGroup;
+	}
+
+	@NonNull
+	public String getSizeDescription(Context ctx) {
+		String pattern = ctx.getString(R.string.ltr_or_rtl_combine_via_space);
+		String size = String.format(Locale.US, "%.2f", getSizeToDownloadInMb());
+		return String.format(pattern, size, "MB");
+	}
+
+	public String getVisibleName(Context ctx, OsmandRegions osmandRegions) {
+		return type.getVisibleName(this, ctx, osmandRegions, true);
+	}
+
+	public String getVisibleName(Context ctx, OsmandRegions osmandRegions, boolean includingParent) {
+		return type.getVisibleName(this, ctx, osmandRegions, includingParent);
+	}
+
+	public String getVisibleDescription(OsmandApplication clctx) {
+		return type.getVisibleDescription(this, clctx);
+	}
+
+	public String getBasename() {
+		return type.getBasename(this);
+	}
+
+	protected abstract double getSizeToDownloadInMb();
+
+	public abstract double getArchiveSizeMB();
+
+	public abstract boolean isDownloaded();
+
+	public abstract boolean isOutdated();
+
+	public abstract boolean hasActualDataToDownload();
+
+	public abstract boolean isDownloading(DownloadIndexesThread thread);
+
+	public abstract String getFileName();
+
+	@NonNull
+	public abstract List<File> getDownloadedFiles(OsmandApplication app);
+
+}

OsmAnd/src/net/osmand/plus/download/DownloadResourceGroup.java

@@ -8,6 +8,7 @@ import net.osmand.map.OsmandRegions;
 import net.osmand.map.WorldRegion;
 import net.osmand.plus.OsmandApplication;
 import net.osmand.plus.R;
+import net.osmand.util.Algorithms;
 
 import java.util.ArrayList;
 import java.util.Collections;
@@ -20,8 +21,8 @@ public class DownloadResourceGroup {
 
 	private final DownloadResourceGroupType type;
 	private final DownloadResourceGroup parentGroup;
-	// ASSERT: individualResources are not empty if and only if groups are empty
+	// ASSERT: individualDisplayItems are not empty if and only if groups are empty
-	private final List<IndexItem> individualResources;
+	private final List<DownloadItem> individualDownloadItems;
 	private final List<DownloadResourceGroup> groups;
 	protected final String id;
 
@@ -107,10 +108,10 @@ public class DownloadResourceGroup {
 	public DownloadResourceGroup(DownloadResourceGroup parentGroup, DownloadResourceGroupType type, String id) {
 		boolean flat = type.containsIndexItem();
 		if (flat) {
-			this.individualResources = new ArrayList<IndexItem>();
+			this.individualDownloadItems = new ArrayList<DownloadItem>();
 			this.groups = null;
 		} else {
-			this.individualResources = null;
+			this.individualDownloadItems = null;
 			this.groups = new ArrayList<DownloadResourceGroup>();
 		}
 		this.id = id;
@@ -173,7 +174,7 @@ public class DownloadResourceGroup {
 			DownloadResourceGroup regionMaps = getSubGroupById(DownloadResourceGroupType.REGION_MAPS.getDefaultId());
 			if(regionMaps != null && regionMaps.size() == 1 && parentGroup != null && parentGroup.getParentGroup() != null && 
 					isEmpty(getSubGroupById(DownloadResourceGroupType.SUBREGIONS.getDefaultId()))) {
-				IndexItem item = regionMaps.individualResources.get(0);
+				IndexItem item = regionMaps.getIndividualResources().get(0);
 				DownloadResourceGroup screenParent = parentGroup.getParentGroup();
 				if(item.getType() == DownloadActivityType.HILLSHADE_FILE) {
 					DownloadResourceGroup hillshades = 
@@ -183,7 +184,7 @@ public class DownloadResourceGroup {
 						screenParent.addGroup(hillshades);
 					}
 					hillshades.addItem(item);
-					regionMaps.individualResources.remove(0);
+					regionMaps.individualDownloadItems.remove(0);
 				} else if (item.getType() == DownloadActivityType.SRTM_COUNTRY_FILE) {
 					DownloadResourceGroup hillshades = screenParent
 							.getSubGroupById(DownloadResourceGroupType.SRTM_HEADER.getDefaultId());
@@ -192,7 +193,7 @@ public class DownloadResourceGroup {
 						screenParent.addGroup(hillshades);
 					}
 					hillshades.addItem(item);
-					regionMaps.individualResources.remove(0);
+					regionMaps.individualDownloadItems.remove(0);
 				}
 				
 			}
@@ -221,35 +222,38 @@ public class DownloadResourceGroup {
 			}
 		}
 		groups.add(g);
-		if (g.individualResources != null) {
+		sortDownloadItems(g.individualDownloadItems);
-			final net.osmand.Collator collator = OsmAndCollator.primaryCollator();
+	}
-			final OsmandApplication app = getRoot().app;
-			final OsmandRegions osmandRegions = app.getRegions();
-			Collections.sort(g.individualResources, new Comparator<IndexItem>() {
-				@Override
-				public int compare(IndexItem lhs, IndexItem rhs) {
-					int lli = lhs.getType().getOrderIndex();
-					int rri = rhs.getType().getOrderIndex();
-					if(lli < rri) {
-						return -1; 
-					} else if(lli > rri) {
-						return 1;
-					}
 
-					return collator.compare(lhs.getVisibleName(app.getApplicationContext(), osmandRegions),
+	protected void sortDownloadItems(List<DownloadItem> items) {
-							rhs.getVisibleName(app.getApplicationContext(), osmandRegions));
+		if (Algorithms.isEmpty(items)) return;
+		final net.osmand.Collator collator = OsmAndCollator.primaryCollator();
+		final OsmandApplication app = getRoot().app;
+		final OsmandRegions osmandRegions = app.getRegions();
+		Collections.sort(items, new Comparator<DownloadItem>() {
+			@Override
+			public int compare(DownloadItem firstItem, DownloadItem secondItem) {
+				int firstOrder = firstItem.getType().getOrderIndex();
+				int secondOrder = secondItem.getType().getOrderIndex();
+				if(firstOrder < secondOrder) {
+					return -1;
+				} else if(firstOrder > secondOrder) {
+					return 1;
 				}
-			});
+				String firstName = firstItem.getVisibleName(app, osmandRegions);
-		}
+				String secondName = secondItem.getVisibleName(app, osmandRegions);
+				return collator.compare(firstName, secondName);
+			}
+		});
 	}
 	
-	public void addItem(IndexItem i) {
+	public void addItem(DownloadItem i) {
 		i.setRelatedGroup(this);
-		individualResources.add(i);
+		individualDownloadItems.add(i);
 	}
 	
 	public boolean isEmpty() {
-		return isEmpty(individualResources) && isEmpty(groups);
+		return isEmpty(individualDownloadItems) && isEmpty(groups);
 	}
 
 	private boolean isEmpty(List<?> l) {
@@ -265,7 +269,7 @@ public class DownloadResourceGroup {
 	}
 	
 	public int size() {
-		return groups != null ? groups.size() : individualResources.size();
+		return groups != null ? groups.size() : individualDownloadItems.size();
 	}
 	
 	public DownloadResourceGroup getGroupByIndex(int ind) {
@@ -275,9 +279,9 @@ public class DownloadResourceGroup {
 		return null;
 	}
 	
-	public IndexItem getItemByIndex(int ind) {
+	public DownloadItem getItemByIndex(int ind) {
-		if (individualResources != null && ind >= 0 && ind < individualResources.size()) {
+		if (individualDownloadItems != null && ind >= 0 && ind < individualDownloadItems.size()) {
-			return individualResources.get(ind);
+			return individualDownloadItems.get(ind);
 		}
 		return null;
 	}
@@ -306,8 +310,20 @@ public class DownloadResourceGroup {
 	}
 	
 	public List<IndexItem> getIndividualResources() {
+		List<IndexItem> individualResources = new ArrayList<>();
+		if (individualDownloadItems != null) {
+			for (DownloadItem item : individualDownloadItems) {
+				if (item instanceof IndexItem) {
+					individualResources.add((IndexItem) item);
+				}
+			}
+		}
 		return individualResources;
 	}
+
+	public List<DownloadItem> getIndividualDownloadItems() {
+		return individualDownloadItems;
+	}
 	
 	public WorldRegion getRegion() {
 		return region;

OsmAnd/src/net/osmand/plus/download/DownloadResources.java

@@ -25,10 +25,14 @@ import java.io.InputStream;
 import java.text.DateFormat;
 import java.text.ParseException;
 import java.util.ArrayList;
+import java.util.HashSet;
 import java.util.LinkedHashMap;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
+import java.util.Set;
+
+import static net.osmand.plus.download.DownloadResourceGroup.DownloadResourceGroupType.REGION_MAPS;
 
 public class DownloadResources extends DownloadResourceGroup {
 	private static final String TAG = DownloadResources.class.getSimpleName();
@@ -40,7 +44,7 @@ public class DownloadResources extends DownloadResourceGroup {
 	private Map<String, String> indexFileNames = new LinkedHashMap<>();
 	private Map<String, String> indexActivatedFileNames = new LinkedHashMap<>();
 	private List<IndexItem> rawResources;
-	private Map<WorldRegion, List<IndexItem> > groupByRegion;
+	private Map<WorldRegion, List<IndexItem>> groupByRegion;
 	private List<IndexItem> itemsToUpdate = new ArrayList<>();
 	public static final String WORLD_SEAMARKS_KEY = "world_seamarks";
 	public static final String WORLD_SEAMARKS_NAME = "World_seamarks";
@@ -55,7 +59,7 @@ public class DownloadResources extends DownloadResourceGroup {
 		this.region = app.getRegions().getWorldRegion();
 		this.app = app;
 	}
-	
+
 	public List<IndexItem> getItemsToUpdate() {
 		return itemsToUpdate;
 	}
@@ -260,7 +264,7 @@ public class DownloadResources extends DownloadResourceGroup {
 	}
 
 	private Map<String, String> listWithAlternatives(final java.text.DateFormat dateFormat, File file,
-			final String ext, final Map<String, String> files) {
+	                                                 final String ext, final Map<String, String> files) {
 		if (file.isDirectory()) {
 			file.list(new FilenameFilter() {
 				@Override
@@ -292,7 +296,7 @@ public class DownloadResources extends DownloadResourceGroup {
 		}
 		return file;
 	}
-	
+
 	private void prepareFilesToUpdate() {
 		List<IndexItem> filtered = rawResources;
 		if (filtered != null) {
@@ -307,7 +311,7 @@ public class DownloadResources extends DownloadResourceGroup {
 			}
 		}
 	}
-	
+
 	protected boolean prepareData(List<IndexItem> resources) {
 		this.rawResources = resources;
 
@@ -332,18 +336,18 @@ public class DownloadResources extends DownloadResourceGroup {
 		DownloadResourceGroup nauticalMapsGroup = new DownloadResourceGroup(this, DownloadResourceGroupType.NAUTICAL_MAPS_GROUP);
 		DownloadResourceGroup nauticalMapsScreen = new DownloadResourceGroup(nauticalMapsGroup, DownloadResourceGroupType.NAUTICAL_MAPS);
 		DownloadResourceGroup nauticalMaps = new DownloadResourceGroup(nauticalMapsGroup, DownloadResourceGroupType.NAUTICAL_MAPS_HEADER);
-		
+
 		DownloadResourceGroup wikivoyageMapsGroup = new DownloadResourceGroup(this, DownloadResourceGroupType.TRAVEL_GROUP);
 		DownloadResourceGroup wikivoyageMapsScreen = new DownloadResourceGroup(wikivoyageMapsGroup, DownloadResourceGroupType.WIKIVOYAGE_MAPS);
 		DownloadResourceGroup wikivoyageMaps = new DownloadResourceGroup(wikivoyageMapsGroup, DownloadResourceGroupType.WIKIVOYAGE_HEADER);
 
-		Map<WorldRegion, List<IndexItem> > groupByRegion = new LinkedHashMap<WorldRegion, List<IndexItem>>();
+		Map<WorldRegion, List<IndexItem>> groupByRegion = new LinkedHashMap<>();
 		OsmandRegions regs = app.getRegions();
 		for (IndexItem ii : resources) {
 			if (ii.getType() == DownloadActivityType.VOICE_FILE) {
-				if (ii.getFileName().endsWith(IndexConstants.TTSVOICE_INDEX_EXT_JS)){
+				if (ii.getFileName().endsWith(IndexConstants.TTSVOICE_INDEX_EXT_JS)) {
 					voiceTTS.addItem(ii);
-				} else if (ii.getFileName().endsWith(IndexConstants.VOICE_INDEX_EXT_ZIP)){
+				} else if (ii.getFileName().endsWith(IndexConstants.VOICE_INDEX_EXT_ZIP)) {
 					voiceRec.addItem(ii);
 				}
 				continue;
@@ -377,7 +381,7 @@ public class DownloadResources extends DownloadResourceGroup {
 				groupByRegion.get(wg).add(ii);
 			} else {
 				if (ii.getFileName().startsWith("World_")) {
-					if (ii.getFileName().toLowerCase().startsWith(WORLD_SEAMARKS_KEY) || 
+					if (ii.getFileName().toLowerCase().startsWith(WORLD_SEAMARKS_KEY) ||
 							ii.getFileName().toLowerCase().startsWith(WORLD_SEAMARKS_OLD_KEY)) {
 						nauticalMaps.addItem(ii);
 					} else {
@@ -402,22 +406,22 @@ public class DownloadResources extends DownloadResourceGroup {
 		LinkedList<DownloadResourceGroup> parent = new LinkedList<DownloadResourceGroup>();
 		DownloadResourceGroup worldSubregions = new DownloadResourceGroup(this, DownloadResourceGroupType.SUBREGIONS);
 		addGroup(worldSubregions);
-		for(WorldRegion rg : region.getSubregions()) {
+		for (WorldRegion rg : region.getSubregions()) {
 			queue.add(rg);
 			parent.add(worldSubregions);
 		}
-		while(!queue.isEmpty()) {
+		while (!queue.isEmpty()) {
 			WorldRegion reg = queue.pollFirst();
 			DownloadResourceGroup parentGroup = parent.pollFirst();
 			List<WorldRegion> subregions = reg.getSubregions();
 			DownloadResourceGroup mainGrp = new DownloadResourceGroup(parentGroup, DownloadResourceGroupType.REGION, reg.getRegionId());
 			mainGrp.region = reg;
 			parentGroup.addGroup(mainGrp);
-			
+
 			List<IndexItem> list = groupByRegion.get(reg);
-			if(list != null) {
+			if (list != null) {
-				DownloadResourceGroup flatFiles = new DownloadResourceGroup(mainGrp, DownloadResourceGroupType.REGION_MAPS);
+				DownloadResourceGroup flatFiles = new DownloadResourceGroup(mainGrp, REGION_MAPS);
-				for(IndexItem ii : list) {
+				for (IndexItem ii : list) {
 					flatFiles.addItem(ii);
 				}
 				mainGrp.addGroup(flatFiles);
@@ -425,10 +429,10 @@ public class DownloadResources extends DownloadResourceGroup {
 			DownloadResourceGroup subRegions = new DownloadResourceGroup(mainGrp, DownloadResourceGroupType.SUBREGIONS);
 			mainGrp.addGroup(subRegions);
 			// add to processing queue
-			for(WorldRegion rg : subregions) {
+			for (WorldRegion rg : subregions) {
 				queue.add(rg);
 				parent.add(subRegions);
-			}	
+			}
 		}
 		// Possible improvements
 		// 1. if there is no subregions no need to create resource group REGIONS_MAPS - objection raise diversity and there is no value
@@ -455,8 +459,8 @@ public class DownloadResources extends DownloadResourceGroup {
 		}
 		otherGroup.addGroup(voiceScreenTTS);
 		otherGroup.addGroup(voiceScreenRec);
-		
+
-		
+
 		if (fonts.getIndividualResources() != null) {
 			otherGroup.addGroup(fontScreen);
 		}
@@ -465,9 +469,87 @@ public class DownloadResources extends DownloadResourceGroup {
 		createHillshadeSRTMGroups();
 		trimEmptyGroups();
 		updateLoadedFiles();
+		collectMultipleIndexesItems(region);
 		return true;
 	}
 
+	private void collectMultipleIndexesItems(@NonNull WorldRegion region) {
+		List<WorldRegion> subRegions = region.getSubregions();
+		if (Algorithms.isEmpty(subRegions)) return;
+
+		DownloadResourceGroup group = getRegionMapsGroup(region);
+		if (group != null) {
+			boolean listModified = false;
+			List<IndexItem> indexesList = group.getIndividualResources();
+			for (DownloadActivityType type : DownloadActivityType.values()) {
+				if (!doesListContainIndexWithType(indexesList, type)) {
+					List<IndexItem> indexesFromSubRegions = collectIndexesOfType(subRegions, type);
+					if (indexesFromSubRegions != null) {
+						group.addItem(new MultipleIndexItem(region, indexesFromSubRegions, type));
+						listModified = true;
+					}
+				}
+			}
+			if (listModified) {
+				sortDownloadItems(group.getIndividualDownloadItems());
+			}
+		}
+		for (WorldRegion subRegion : subRegions) {
+			collectMultipleIndexesItems(subRegion);
+		}
+	}
+
+	private DownloadResourceGroup getRegionMapsGroup(WorldRegion region) {
+		DownloadResourceGroup group = getRegionGroup(region);
+		if (group != null) {
+			return group.getSubGroupById(REGION_MAPS.getDefaultId());
+		}
+		return null;
+	}
+
+	@Nullable
+	private List<IndexItem> collectIndexesOfType(@NonNull List<WorldRegion> regions,
+	                                             @NonNull DownloadActivityType type) {
+		Map<WorldRegion, IndexItem> collectedIndexes = new LinkedHashMap<>();
+		for (WorldRegion region : regions) {
+			List<IndexItem> regionIndexes = getIndexItems(region);
+			boolean found = false;
+			if (regionIndexes != null) {
+				for (IndexItem index : regionIndexes) {
+					if (index.getType() == type) {
+						found = true;
+						collectedIndexes.put(region, index);
+						break;
+					}
+				}
+			}
+			if (!found) return null;
+		}
+		return removeDuplicates(collectedIndexes);
+	}
+
+	private List<IndexItem> removeDuplicates(Map<WorldRegion, IndexItem> collectedIndexes) {
+		List<WorldRegion> regions = new ArrayList<>(collectedIndexes.keySet());
+		// collect duplicates
+		Set<WorldRegion> duplicates = new HashSet<>();
+		for (int i = 0; i < regions.size() - 1; i++) {
+			WorldRegion firstRegion = regions.get(i);
+			for (int j = i + 1; j < regions.size(); j++) {
+				WorldRegion secondRegion = regions.get(j);
+				if (WorldRegion.isFirstRegionInsideTheSecond(firstRegion, secondRegion)) {
+					duplicates.add(firstRegion);
+				} else if (WorldRegion.isFirstRegionInsideTheSecond(secondRegion, firstRegion)) {
+					duplicates.add(secondRegion);
+				}
+			}
+		}
+		// remove duplicates
+		for (WorldRegion key : duplicates) {
+			collectedIndexes.remove(key);
+		}
+		return new ArrayList<>(collectedIndexes.values());
+	}
+
 	private void buildRegionsGroups(WorldRegion region, DownloadResourceGroup group) {
 		LinkedList<WorldRegion> queue = new LinkedList<WorldRegion>();
 		LinkedList<DownloadResourceGroup> parent = new LinkedList<DownloadResourceGroup>();
@@ -485,7 +567,7 @@ public class DownloadResources extends DownloadResourceGroup {
 				CustomRegion customRegion = (CustomRegion) reg;
 				List<IndexItem> indexItems = customRegion.loadIndexItems();
 				if (!Algorithms.isEmpty(indexItems)) {
-					DownloadResourceGroup flatFiles = new DownloadResourceGroup(mainGrp, DownloadResourceGroupType.REGION_MAPS);
+					DownloadResourceGroup flatFiles = new DownloadResourceGroup(mainGrp, REGION_MAPS);
 					for (IndexItem ii : indexItems) {
 						flatFiles.addItem(ii);
 					}
@@ -557,7 +639,11 @@ public class DownloadResources extends DownloadResourceGroup {
 		return res;
 	}
 
-	public static List<IndexItem> findIndexItemsAt(OsmandApplication app, List<String> names, DownloadActivityType type, boolean includeDownloaded, int limit) {
+	public static List<IndexItem> findIndexItemsAt(OsmandApplication app,
+	                                               List<String> names,
+	                                               DownloadActivityType type,
+	                                               boolean includeDownloaded,
+	                                               int limit) {
 		List<IndexItem> res = new ArrayList<>();
 		OsmandRegions regions = app.getRegions();
 		DownloadIndexesThread downloadThread = app.getDownloadThread();
@@ -573,8 +659,12 @@ public class DownloadResources extends DownloadResourceGroup {
 		return res;
 	}
 
-	private static boolean isIndexItemDownloaded(DownloadIndexesThread downloadThread, DownloadActivityType type, WorldRegion downloadRegion, List<IndexItem> res) {
+	private static boolean isIndexItemDownloaded(DownloadIndexesThread downloadThread,
-		List<IndexItem> otherIndexItems = new ArrayList<>(downloadThread.getIndexes().getIndexItems(downloadRegion));
+	                                             DownloadActivityType type,
+	                                             WorldRegion downloadRegion,
+	                                             List<IndexItem> res) {
+		List<IndexItem> otherIndexItems =
+				new ArrayList<>(downloadThread.getIndexes().getIndexItems(downloadRegion));
 		for (IndexItem indexItem : otherIndexItems) {
 			if (indexItem.getType() == type && indexItem.isDownloaded()) {
 				return true;
@@ -584,8 +674,24 @@ public class DownloadResources extends DownloadResourceGroup {
 				&& isIndexItemDownloaded(downloadThread, type, downloadRegion.getSuperregion(), res);
 	}
 
-	private static boolean addIndexItem(DownloadIndexesThread downloadThread, DownloadActivityType type, WorldRegion downloadRegion, List<IndexItem> res) {
+	private boolean doesListContainIndexWithType(List<IndexItem> indexItems,
-		List<IndexItem> otherIndexItems = new ArrayList<>(downloadThread.getIndexes().getIndexItems(downloadRegion));
+	                                             DownloadActivityType type) {
+		if (indexItems != null) {
+			for (IndexItem indexItem : indexItems) {
+				if (indexItem.getType() == type) {
+					return true;
+				}
+			}
+		}
+		return false;
+	}
+
+	private static boolean addIndexItem(DownloadIndexesThread downloadThread,
+	                                    DownloadActivityType type,
+	                                    WorldRegion downloadRegion,
+	                                    List<IndexItem> res) {
+		List<IndexItem> otherIndexItems =
+				new ArrayList<>(downloadThread.getIndexes().getIndexItems(downloadRegion));
 		for (IndexItem indexItem : otherIndexItems) {
 			if (indexItem.getType() == type
 					&& !res.contains(indexItem)) {

OsmAnd/src/net/osmand/plus/download/DownloadValidationManager.java

@@ -192,7 +192,7 @@ public class DownloadValidationManager {
 	}
 
 
-	public void makeSureUserCancelDownload(FragmentActivity ctx, final IndexItem item) {
+	public void makeSureUserCancelDownload(FragmentActivity ctx, final DownloadItem item) {
 		AlertDialog.Builder bld = new AlertDialog.Builder(ctx);
 		bld.setTitle(ctx.getString(R.string.shared_string_cancel));
 		bld.setMessage(R.string.confirm_interrupt_download);

OsmAnd/src/net/osmand/plus/download/IndexItem.java

@@ -1,12 +1,9 @@
 package net.osmand.plus.download;
 
-import android.content.Context;
-
 import androidx.annotation.NonNull;
 
 import net.osmand.IndexConstants;
 import net.osmand.PlatformUtil;
-import net.osmand.map.OsmandRegions;
 import net.osmand.plus.OsmandApplication;
 import net.osmand.plus.R;
 import net.osmand.plus.helpers.FileNameTranslationHelper;
@@ -16,9 +13,11 @@ import org.apache.commons.logging.Log;
 import java.io.File;
 import java.io.IOException;
 import java.text.DateFormat;
+import java.util.ArrayList;
 import java.util.Date;
+import java.util.List;
 
-public class IndexItem implements Comparable<IndexItem> {
+public class IndexItem extends DownloadItem implements Comparable<IndexItem> {
 	private static final Log log = PlatformUtil.getLog(IndexItem.class);
 	
 	String description;
@@ -27,43 +26,44 @@ public class IndexItem implements Comparable<IndexItem> {
 	long timestamp;
 	long contentSize;
 	long containerSize;
-	DownloadActivityType type;
 	boolean extra;
 	
 	// Update information
 	boolean outdated;
 	boolean downloaded;
 	long localTimestamp;
-	DownloadResourceGroup relatedGroup;
 
-
+	public IndexItem(String fileName,
-	public IndexItem(String fileName, String description, long timestamp, String size, long contentSize,
+	                 String description,
-			long containerSize, @NonNull DownloadActivityType tp) {
+	                 long timestamp,
+	                 String size,
+	                 long contentSize,
+	                 long containerSize,
+	                 @NonNull DownloadActivityType type) {
+		super(type);
 		this.fileName = fileName;
 		this.description = description;
 		this.timestamp = timestamp;
 		this.size = size;
 		this.contentSize = contentSize;
 		this.containerSize = containerSize;
-		this.type = tp;
-	}
-
-	public DownloadActivityType getType() {
-		return type;
-	}
-	
-	public void setRelatedGroup(DownloadResourceGroup relatedGroup) {
-		this.relatedGroup = relatedGroup;
-	}
-	
-	public DownloadResourceGroup getRelatedGroup() {
-		return relatedGroup;
 	}
 
+	@Override
 	public String getFileName() {
 		return fileName;
 	}
 
+	@NonNull
+	@Override
+	public List<File> getDownloadedFiles(OsmandApplication app) {
+		File targetFile = getTargetFile(app);
+		List<File> result = new ArrayList<>();
+		if (targetFile.exists()) {
+			result.add(targetFile);
+		}
+		return result;
+	}
 
 	public String getDescription() {
 		return description;
@@ -89,10 +89,14 @@ public class IndexItem implements Comparable<IndexItem> {
 		return ((double)containerSize) / (1 << 20);
 	}
 
-	public String getSizeDescription(Context ctx) {
+	@Override
-		return ctx.getString(R.string.ltr_or_rtl_combine_via_space, size, "MB");
+	protected double getSizeToDownloadInMb() {
+		try {
+			return Double.parseDouble(size);
+		} catch (Exception e) {
+			return 0;
+		}
 	}
-	
 
 	public DownloadEntry createDownloadEntry(OsmandApplication ctx) {
 		String fileName = this.fileName;
@@ -132,11 +136,8 @@ public class IndexItem implements Comparable<IndexItem> {
 		return type.getTargetFileName(this);
 	}
 
-	public String getBasename() {
+	@NonNull
-		return type.getBasename(this);
+	public File getTargetFile(@NonNull OsmandApplication ctx) {
-	}
-
-	public File getTargetFile(OsmandApplication ctx) {
 		String basename = getTranslatedBasename();
 		return new File(type.getDownloadFolder(ctx, this), basename + type.getUnzipExtension(ctx, this));
 	}
@@ -190,7 +191,7 @@ public class IndexItem implements Comparable<IndexItem> {
 				&& getType() != DownloadActivityType.HILLSHADE_FILE
 				&& getType() != DownloadActivityType.SLOPE_FILE;
 	}
-	
+
 	public void setOutdated(boolean outdated) {
 		this.outdated = outdated;
 	}
@@ -198,7 +199,12 @@ public class IndexItem implements Comparable<IndexItem> {
 	public void setDownloaded(boolean downloaded) {
 		this.downloaded = downloaded;
 	}
-	
+
+	@Override
+	public boolean hasActualDataToDownload() {
+		return !isDownloaded() || isOutdated();
+	}
+
 	public void setLocalTimestamp(long localTimestamp) {
 		this.localTimestamp = localTimestamp;
 	}
@@ -211,20 +217,11 @@ public class IndexItem implements Comparable<IndexItem> {
 		return downloaded;
 	}
 
-	public String getVisibleName(Context ctx, OsmandRegions osmandRegions) {
+	@Override
-		return type.getVisibleName(this, ctx, osmandRegions, true);
+	public boolean isDownloading(DownloadIndexesThread thread) {
+		return thread.isDownloading(this);
 	}
 
-	public String getVisibleName(Context ctx, OsmandRegions osmandRegions, boolean includingParent) {
-		return type.getVisibleName(this, ctx, osmandRegions, includingParent);
-	}
-
-	public String getVisibleDescription(OsmandApplication clctx) {
-		return type.getVisibleDescription(this, clctx);
-	}
-
-	
-
 	public String getDate(java.text.DateFormat format) {
 		return format.format(new Date(timestamp));
 	}

OsmAnd/src/net/osmand/plus/download/MultipleIndexItem.java

@@ -0,0 +1,122 @@
+package net.osmand.plus.download;
+
+import androidx.annotation.NonNull;
+
+import net.osmand.map.WorldRegion;
+import net.osmand.plus.OsmandApplication;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.List;
+
+public class MultipleIndexItem extends DownloadItem {
+
+	private final List<IndexItem> items;
+
+	public MultipleIndexItem(@NonNull WorldRegion region,
+	                         @NonNull List<IndexItem> items,
+	                         @NonNull DownloadActivityType type) {
+		super(type);
+		this.items = items;
+	}
+
+	public List<IndexItem> getAllIndexes() {
+		return items;
+	}
+
+	@Override
+	public boolean isOutdated() {
+		for (IndexItem item : items) {
+			if (item.isOutdated()) {
+				return true;
+			}
+		}
+		return false;
+	}
+
+	@Override
+	public boolean isDownloaded() {
+		for (IndexItem item : items) {
+			if (item.isDownloaded()) {
+				return true;
+			}
+		}
+		return false;
+	}
+
+	@Override
+	public boolean isDownloading(DownloadIndexesThread thread) {
+		for (IndexItem item : items) {
+			if (thread.isDownloading(item)) {
+				return true;
+			}
+		}
+		return false;
+	}
+
+	@Override
+	public String getFileName() {
+		// The file name is used in many places.
+		// But in the case of a Multiple Indexes element it's not use in most cases.
+		// File is not created for Multiple Indexes element,
+		// and all file names are available in internal IndexItem elements.
+
+		// The only one place where a filename may be needed
+		// is to generate the base and display names.
+		// Since these names are generated based on the filename.
+		// But now we don't need a name for display,
+		// because on all screens where we now use multiple elements item,
+		// for display used a type name instead of a file name.
+
+		// Later, if you need a file name,
+		// you can try to create it based on the WorldRegion
+		// and file name of one of the internal IndexItem elements.
+		return "";
+	}
+
+	@NonNull
+	@Override
+	public List<File> getDownloadedFiles(OsmandApplication app) {
+		List<File> result = new ArrayList<>();
+		for (IndexItem item : items) {
+			result.addAll(item.getDownloadedFiles(app));
+		}
+		return result;
+	}
+
+	public List<IndexItem> getIndexesToDownload() {
+		List<IndexItem> indexesToDownload = new ArrayList<>();
+		for (IndexItem item : items) {
+			if (item.hasActualDataToDownload()) {
+				indexesToDownload.add(item);
+			}
+		}
+		return indexesToDownload;
+	}
+
+	@Override
+	public boolean hasActualDataToDownload() {
+		return getIndexesToDownload().size() > 0;
+	}
+
+	@Override
+	public double getSizeToDownloadInMb() {
+		double totalSizeMb = 0.0d;
+		for (IndexItem item : items) {
+			if (item.hasActualDataToDownload()) {
+				totalSizeMb += Double.parseDouble(item.size);
+			}
+		}
+		return totalSizeMb;
+	}
+
+	@Override
+	public double getArchiveSizeMB() {
+		double result = 0.0d;
+		for (IndexItem item : items) {
+			result += item.getArchiveSizeMB();
+		}
+		return result;
+	}
+
+}

OsmAnd/src/net/osmand/plus/download/ui/DownloadResourceGroupAdapter.java

@@ -10,9 +10,9 @@ import android.widget.TextView;
 import net.osmand.plus.R;
 import net.osmand.plus.activities.OsmandBaseExpandableListAdapter;
 import net.osmand.plus.download.CustomIndexItem;
+import net.osmand.plus.download.DownloadItem;
 import net.osmand.plus.download.DownloadActivity;
 import net.osmand.plus.download.DownloadResourceGroup;
-import net.osmand.plus.download.IndexItem;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -52,9 +52,9 @@ public class DownloadResourceGroupAdapter extends OsmandBaseExpandableListAdapte
 	public View getChildView(final int groupPosition, final int childPosition, boolean isLastChild,
 	                         View convertView, ViewGroup parent) {
 		final Object child = getChild(groupPosition, childPosition);
-		if (child instanceof IndexItem) {
+		if (child instanceof DownloadItem) {
 
-			IndexItem item = (IndexItem) child;
+			DownloadItem item = (DownloadItem) child;
 			DownloadResourceGroup group = getGroupObj(groupPosition);
 			ItemViewHolder viewHolder;
 			if (convertView != null && convertView.getTag() instanceof ItemViewHolder) {

OsmAnd/src/net/osmand/plus/download/ui/ItemViewHolder.java

@@ -17,11 +17,14 @@ import android.widget.ProgressBar;
 import android.widget.TextView;
 import android.widget.Toast;
 
+import androidx.annotation.NonNull;
 import androidx.appcompat.app.AlertDialog;
 import androidx.appcompat.widget.PopupMenu;
 import androidx.core.view.ViewCompat;
 
+import net.osmand.map.OsmandRegions;
 import net.osmand.map.WorldRegion;
+import net.osmand.plus.OsmandApplication;
 import net.osmand.plus.R;
 import net.osmand.plus.Version;
 import net.osmand.plus.activities.LocalIndexHelper.LocalIndexType;
@@ -31,11 +34,13 @@ import net.osmand.plus.activities.PluginsFragment;
 import net.osmand.plus.chooseplan.ChoosePlanDialogFragment;
 import net.osmand.plus.download.CityItem;
 import net.osmand.plus.download.CustomIndexItem;
+import net.osmand.plus.download.DownloadItem;
 import net.osmand.plus.download.DownloadActivity;
 import net.osmand.plus.download.DownloadActivityType;
 import net.osmand.plus.download.DownloadResourceGroup;
 import net.osmand.plus.download.DownloadResources;
 import net.osmand.plus.download.IndexItem;
+import net.osmand.plus.download.MultipleIndexItem;
 import net.osmand.plus.download.ui.LocalIndexesFragment.LocalIndexOperationTask;
 import net.osmand.plus.helpers.FileNameTranslationHelper;
 import net.osmand.plus.inapp.InAppPurchaseHelper;
@@ -43,6 +48,8 @@ import net.osmand.util.Algorithms;
 
 import java.io.File;
 import java.text.DateFormat;
+import java.util.ArrayList;
+import java.util.List;
 
 public class ItemViewHolder {
 
@@ -137,24 +144,24 @@ public class ItemViewHolder {
 		depthContoursPurchased = InAppPurchaseHelper.isDepthContoursPurchased(context.getMyApplication());
 	}
 
-	public void bindIndexItem(final IndexItem indexItem) {
+	public void bindIndexItem(final DownloadItem downloadItem) {
-		bindIndexItem(indexItem, null);
+		bindIndexItem(downloadItem, null);
 	}
 
-	public void bindIndexItem(final IndexItem indexItem, final String cityName) {
+	public void bindIndexItem(final DownloadItem downloadItem, final String cityName) {
 		initAppStatusVariables();
-		boolean isDownloading = context.getDownloadThread().isDownloading(indexItem);
+		boolean isDownloading = downloadItem.isDownloading(context.getDownloadThread());
 		int progress = -1;
-		if (context.getDownloadThread().getCurrentDownloadingItem() == indexItem) {
+		if (context.getDownloadThread().getCurrentDownloadingItem() == downloadItem) {
 			progress = context.getDownloadThread().getCurrentDownloadingItemProgress();
 		}
-		boolean disabled = checkDisabledAndClickAction(indexItem);
+		boolean disabled = checkDisabledAndClickAction(downloadItem);
 		/// name and left item
 		String name;
 		if(showTypeInName) {
-			name = indexItem.getType().getString(context);
+			name = downloadItem.getType().getString(context);
 		} else {
-			name = indexItem.getVisibleName(context, context.getMyApplication().getRegions(), showParentRegionName);
+			name = downloadItem.getVisibleName(context, context.getMyApplication().getRegions(), showParentRegionName);
 		}
 		String text = (!Algorithms.isEmpty(cityName) && !cityName.equals(name) ? cityName + "\n" : "") + name;
 		nameTextView.setText(text);
@@ -164,43 +171,78 @@ public class ItemViewHolder {
 			nameTextView.setTextColor(textColorSecondary);
 		}
 		int color = textColorSecondary;
-		if(indexItem.isDownloaded() && !isDownloading) {
+		if(downloadItem.isDownloaded() && !isDownloading) {
-			int colorId = indexItem.isOutdated() ? R.color.color_distance : R.color.color_ok;
+			int colorId = downloadItem.isOutdated() ? R.color.color_distance : R.color.color_ok;
 			color = context.getResources().getColor(colorId);
 		}
-		if (indexItem.isDownloaded()) {
+		if (downloadItem.isDownloaded()) {
 			leftImageView.setImageDrawable(getContentIcon(context,
-					indexItem.getType().getIconResource(), color));
+					downloadItem.getType().getIconResource(), color));
 		} else if (disabled) {
 			leftImageView.setImageDrawable(getContentIcon(context,
-					indexItem.getType().getIconResource(), textColorSecondary));
+					downloadItem.getType().getIconResource(), textColorSecondary));
 		} else {
 			leftImageView.setImageDrawable(getContentIcon(context,
-					indexItem.getType().getIconResource()));
+					downloadItem.getType().getIconResource()));
 		}
 		descrTextView.setTextColor(textColorSecondary);
 		if (!isDownloading) {
 			progressBar.setVisibility(View.GONE);
 			descrTextView.setVisibility(View.VISIBLE);
-			if (indexItem instanceof CustomIndexItem && (((CustomIndexItem) indexItem).getSubName(context) != null)) {
+			if (downloadItem instanceof CustomIndexItem && (((CustomIndexItem) downloadItem).getSubName(context) != null)) {
-				descrTextView.setText(((CustomIndexItem) indexItem).getSubName(context));
+				descrTextView.setText(((CustomIndexItem) downloadItem).getSubName(context));
-			} else if (indexItem.getType() == DownloadActivityType.DEPTH_CONTOUR_FILE && !depthContoursPurchased) {
+			} else if (downloadItem.getType() == DownloadActivityType.DEPTH_CONTOUR_FILE && !depthContoursPurchased) {
 				descrTextView.setText(context.getString(R.string.depth_contour_descr));
-			} else if ((indexItem.getType() == DownloadActivityType.SRTM_COUNTRY_FILE
+			} else if ((downloadItem.getType() == DownloadActivityType.SRTM_COUNTRY_FILE
-					|| indexItem.getType() == DownloadActivityType.HILLSHADE_FILE
+					|| downloadItem.getType() == DownloadActivityType.HILLSHADE_FILE
-					|| indexItem.getType() == DownloadActivityType.SLOPE_FILE) && srtmDisabled) {
+					|| downloadItem.getType() == DownloadActivityType.SLOPE_FILE) && srtmDisabled) {
 				if (showTypeInName) {
 					descrTextView.setText("");
 				} else {
-					descrTextView.setText(indexItem.getType().getString(context));
+					descrTextView.setText(downloadItem.getType().getString(context));
 				}
-			} else if (showTypeInDesc) {
+			} else if (downloadItem instanceof MultipleIndexItem) {
-				descrTextView.setText(indexItem.getType().getString(context) +
+				MultipleIndexItem item = (MultipleIndexItem) downloadItem;
-						" • " + indexItem.getSizeDescription(context) +
+				String allRegionsHeader = context.getString(R.string.shared_strings_all_regions);
-						" • " + (showRemoteDate ? indexItem.getRemoteDate(dateFormat) : indexItem.getLocalDate(dateFormat)));
+				String regionsHeader = context.getString(R.string.regions);
+				String allRegionsCount = String.valueOf(item.getAllIndexes().size());
+				String leftToDownloadCount = String.valueOf(item.getIndexesToDownload().size());
+				String header;
+				String count;
+				if (item.hasActualDataToDownload()) {
+					if (!item.isDownloaded()) {
+						header = allRegionsHeader;
+						count = leftToDownloadCount;
+					} else {
+						header = regionsHeader;
+						count = String.format(
+								context.getString(R.string.ltr_or_rtl_combine_via_slash),
+								leftToDownloadCount,
+								allRegionsCount);
+					}
+				} else {
+					header = allRegionsHeader;
+					count = allRegionsCount;
+				}
+				String fullDescription =
+						context.getString(R.string.ltr_or_rtl_combine_via_colon, header, count);
+				if (item.hasActualDataToDownload()) {
+					fullDescription = context.getString(
+							R.string.ltr_or_rtl_combine_via_bold_point, fullDescription,
+							item.getSizeDescription(context));
+				}
+				descrTextView.setText(fullDescription);
 			} else {
-				descrTextView.setText(indexItem.getSizeDescription(context) + " • " +
+				IndexItem item = (IndexItem) downloadItem;
-						(showRemoteDate ? indexItem.getRemoteDate(dateFormat) : indexItem.getLocalDate(dateFormat)));
+				String pattern = context.getString(R.string.ltr_or_rtl_combine_via_bold_point);
+				String type = item.getType().getString(context);
+				String size = item.getSizeDescription(context);
+				String date = showRemoteDate ? item.getRemoteDate(dateFormat) : item.getLocalDate(dateFormat);
+				String fullDescription = String.format(pattern, size, date);
+				if (showTypeInDesc) {
+					fullDescription = String.format(pattern, type, fullDescription);
+				}
+				descrTextView.setText(fullDescription);
 			}
 
 		} else {
@@ -209,18 +251,19 @@ public class ItemViewHolder {
 			progressBar.setProgress(progress);
 			
 			if (showProgressInDesc) {
-				double mb = indexItem.getArchiveSizeMB();
+				double mb = downloadItem.getArchiveSizeMB();
 				String v ;
 				if (progress != -1) {
 					v = context.getString(R.string.value_downloaded_of_max, mb * progress / 100, mb);
 				} else {
 					v = context.getString(R.string.file_size_in_mb, mb);
 				}
-				if(showTypeInDesc && indexItem.getType() == DownloadActivityType.ROADS_FILE) {
+				String fullDescription = v;
-					descrTextView.setText(indexItem.getType().getString(context) + " • " + v);
+				if(showTypeInDesc && downloadItem.getType() == DownloadActivityType.ROADS_FILE) {
-				} else {
+					fullDescription = context.getString(R.string.ltr_or_rtl_combine_via_bold_point,
-					descrTextView.setText(v);
+							downloadItem.getType().getString(context), fullDescription);
 				}
+				descrTextView.setText(fullDescription);
 				descrTextView.setVisibility(View.VISIBLE);
 			} else {
 				descrTextView.setVisibility(View.GONE);
@@ -241,44 +284,7 @@ public class ItemViewHolder {
 		}
 	}
 
-	protected void download(IndexItem indexItem, DownloadResourceGroup parentOptional) {
+	private boolean checkDisabledAndClickAction(final DownloadItem item) {
-		boolean handled = false;
-		if(parentOptional != null) {
-			WorldRegion region = DownloadResourceGroup.getRegion(parentOptional);
-			context.setDownloadItem(region, indexItem.getTargetFile(context.getMyApplication()).getAbsolutePath());
-		}
-		if (indexItem.getType() == DownloadActivityType.ROADS_FILE && parentOptional != null) {
-			for (IndexItem ii : parentOptional.getIndividualResources()) {
-				if (ii.getType() == DownloadActivityType.NORMAL_FILE) {
-					if (ii.isDownloaded()) {
-						handled = true;
-						confirmDownload(indexItem);
-					}
-					break;
-				}
-			}
-		}		
-		if(!handled) {
-			context.startDownload(indexItem);
-		}
-	}
-	private void confirmDownload(final IndexItem indexItem) {
-		AlertDialog.Builder builder = new AlertDialog.Builder(context);
-		builder.setTitle(R.string.are_you_sure);
-		builder.setMessage(R.string.confirm_download_roadmaps);
-		builder.setNegativeButton(R.string.shared_string_cancel, null).setPositiveButton(
-				R.string.shared_string_download, new DialogInterface.OnClickListener() {
-					@Override
-					public void onClick(DialogInterface dialog, int which) {
-						if (indexItem != null) {
-							context.startDownload(indexItem);
-						}
-					}
-				});
-		builder.show();
-	}
-
-	private boolean checkDisabledAndClickAction(final IndexItem item) {
 		RightButtonAction clickAction = getClickAction(item);
 		boolean disabled = clickAction != RightButtonAction.DOWNLOAD;
 		OnClickListener action = getRightButtonAction(item, clickAction);
@@ -290,15 +296,15 @@ public class ItemViewHolder {
 		} else {
 			rightButton.setVisibility(View.GONE);
 			rightImageButton.setVisibility(View.VISIBLE);
-			final boolean isDownloading = context.getDownloadThread().isDownloading(item);
+			final boolean isDownloading = item.isDownloading(context.getDownloadThread());
 			if (isDownloading) {
 				rightImageButton.setImageDrawable(getContentIcon(context, R.drawable.ic_action_remove_dark));
 				rightImageButton.setContentDescription(context.getString(R.string.shared_string_cancel));
-			} else if(item.isDownloaded() && !item.isOutdated()) {
+			} else if(!item.hasActualDataToDownload()) {
 				rightImageButton.setImageDrawable(getContentIcon(context, R.drawable.ic_overflow_menu_white));
 				rightImageButton.setContentDescription(context.getString(R.string.shared_string_more));
 			} else {
-				rightImageButton.setImageDrawable(getContentIcon(context, R.drawable.ic_action_import));
+				rightImageButton.setImageDrawable(getContentIcon(context, getDownloadActionIconId(item)));
 				rightImageButton.setContentDescription(context.getString(R.string.shared_string_download));
 			}
 			rightImageButton.setOnClickListener(action);
@@ -307,31 +313,37 @@ public class ItemViewHolder {
 		return disabled;
 	}
 
+	private int getDownloadActionIconId(@NonNull DownloadItem item) {
+		return item instanceof MultipleIndexItem ?
+				R.drawable.ic_action_multi_download :
+				R.drawable.ic_action_import;
+	}
+
 	@SuppressLint("DefaultLocale")
-	public RightButtonAction getClickAction(final IndexItem indexItem) {
+	public RightButtonAction getClickAction(final DownloadItem item) {
 		RightButtonAction clickAction = RightButtonAction.DOWNLOAD;
-		if (indexItem.getBasename().toLowerCase().equals(DownloadResources.WORLD_SEAMARKS_KEY)
+		if (item.getBasename().toLowerCase().equals(DownloadResources.WORLD_SEAMARKS_KEY)
 				&& nauticalPluginDisabled) {
 			clickAction = RightButtonAction.ASK_FOR_SEAMARKS_PLUGIN;
-		} else if ((indexItem.getType() == DownloadActivityType.SRTM_COUNTRY_FILE
+		} else if ((item.getType() == DownloadActivityType.SRTM_COUNTRY_FILE
-				|| indexItem.getType() == DownloadActivityType.HILLSHADE_FILE
+				|| item.getType() == DownloadActivityType.HILLSHADE_FILE
-				|| indexItem.getType() == DownloadActivityType.SLOPE_FILE) && srtmDisabled) {
+				|| item.getType() == DownloadActivityType.SLOPE_FILE) && srtmDisabled) {
 			if (srtmNeedsInstallation) {
 				clickAction = RightButtonAction.ASK_FOR_SRTM_PLUGIN_PURCHASE;
 			} else {
 				clickAction = RightButtonAction.ASK_FOR_SRTM_PLUGIN_ENABLE;
 			}
 
-		} else if (indexItem.getType() == DownloadActivityType.WIKIPEDIA_FILE
+		} else if (item.getType() == DownloadActivityType.WIKIPEDIA_FILE
 				&& !Version.isPaidVersion(context.getMyApplication())) {
 			clickAction = RightButtonAction.ASK_FOR_FULL_VERSION_PURCHASE;
-		} else if (indexItem.getType() == DownloadActivityType.DEPTH_CONTOUR_FILE && !depthContoursPurchased) {
+		} else if (item.getType() == DownloadActivityType.DEPTH_CONTOUR_FILE && !depthContoursPurchased) {
 			clickAction = RightButtonAction.ASK_FOR_DEPTH_CONTOURS_PURCHASE;
 		}
 		return clickAction;
 	}
 
-	public OnClickListener getRightButtonAction(final IndexItem item, final RightButtonAction clickAction) {
+	public OnClickListener getRightButtonAction(final DownloadItem item, final RightButtonAction clickAction) {
 		if (clickAction != RightButtonAction.DOWNLOAD) {
 			return new View.OnClickListener() {
 				@Override
@@ -370,7 +382,7 @@ public class ItemViewHolder {
 				}
 			};
 		} else {
-			final boolean isDownloading = context.getDownloadThread().isDownloading(item);
+			final boolean isDownloading = item.isDownloading(context.getDownloadThread());
 			return new View.OnClickListener() {
 				@Override
 				public void onClick(View v) {
@@ -380,8 +392,8 @@ public class ItemViewHolder {
 						} else {
 							context.makeSureUserCancelDownload(item);
 						}
-					} else if(item.isDownloaded() && !item.isOutdated()){
+					} else if(!item.hasActualDataToDownload()){
-						contextMenu(v, item, item.getRelatedGroup());
+						showContextMenu(v, item, item.getRelatedGroup());
 					} else {
 						download(item, item.getRelatedGroup());
 					}
@@ -390,52 +402,21 @@ public class ItemViewHolder {
 		}
 	}
 
-	protected void contextMenu(View v, final IndexItem indexItem, final DownloadResourceGroup parentOptional) {
+	protected void showContextMenu(View v,
-		final PopupMenu optionsMenu = new PopupMenu(context, v);
+	                               final DownloadItem downloadItem,
+	                               final DownloadResourceGroup parentOptional) {
+		OsmandApplication app = context.getMyApplication();
+		PopupMenu optionsMenu = new PopupMenu(context, v);
 		MenuItem item;
-		
+
-		final File fl = indexItem.getTargetFile(context.getMyApplication());
+		final List<File> downloadedFiles = downloadItem.getDownloadedFiles(app);
-		if (fl.exists()) {
+		if (!Algorithms.isEmpty(downloadedFiles)) {
-			item = optionsMenu.getMenu().add(R.string.shared_string_remove).setIcon(
+			item = optionsMenu.getMenu().add(R.string.shared_string_remove)
-							context.getMyApplication().getUIUtilities().getThemedIcon(R.drawable.ic_action_remove_dark));
+					.setIcon(getThemedIcon(context, R.drawable.ic_action_remove_dark));
 			item.setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
 				@Override
 				public boolean onMenuItemClick(MenuItem item) {
-					LocalIndexType tp = LocalIndexType.MAP_DATA;
+					confirmRemove(downloadItem, downloadedFiles);
-					if (indexItem.getType() == DownloadActivityType.HILLSHADE_FILE) {
-						tp = LocalIndexType.TILES_DATA;
-					} else if (indexItem.getType() == DownloadActivityType.SLOPE_FILE) {
-						tp = LocalIndexType.TILES_DATA;
-					} else if (indexItem.getType() == DownloadActivityType.ROADS_FILE) {
-						tp = LocalIndexType.MAP_DATA;
-					} else if (indexItem.getType() == DownloadActivityType.SRTM_COUNTRY_FILE) {
-						tp = LocalIndexType.SRTM_DATA;
-					} else if (indexItem.getType() == DownloadActivityType.WIKIPEDIA_FILE) {
-						tp = LocalIndexType.MAP_DATA;
-					} else if (indexItem.getType() == DownloadActivityType.WIKIVOYAGE_FILE) {
-						tp = LocalIndexType.MAP_DATA;
-					} else if (indexItem.getType() == DownloadActivityType.TRAVEL_FILE) {
-						tp = LocalIndexType.MAP_DATA;
-					} else if (indexItem.getType() == DownloadActivityType.FONT_FILE) {
-						tp = LocalIndexType.FONT_DATA;
-					} else if (indexItem.getType() == DownloadActivityType.VOICE_FILE) {
-						tp = indexItem.getBasename().contains("tts") ? LocalIndexType.TTS_VOICE_DATA
-								: LocalIndexType.VOICE_DATA;
-					}
-					final LocalIndexInfo info = new LocalIndexInfo(tp, fl, false, context.getMyApplication());
-					AlertDialog.Builder confirm = new AlertDialog.Builder(context);
-					confirm.setPositiveButton(R.string.shared_string_yes, new DialogInterface.OnClickListener() {
-						@Override
-						public void onClick(DialogInterface dialog, int which) {
-							new LocalIndexOperationTask(context, null, LocalIndexOperationTask.DELETE_OPERATION)
-									.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, info);
-						}
-					});
-					confirm.setNegativeButton(R.string.shared_string_no, null);
-					String fn = FileNameTranslationHelper.getFileName(context, context.getMyApplication().getRegions(),
-							indexItem.getVisibleName(context, context.getMyApplication().getRegions()));
-					confirm.setMessage(context.getString(R.string.delete_confirmation_msg, fn));
-					confirm.show();
 					return true;
 				}
 			});
@@ -445,14 +426,144 @@ public class ItemViewHolder {
 		item.setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
 			@Override
 			public boolean onMenuItemClick(MenuItem item) {
-				download(indexItem, parentOptional);
+				download(downloadItem, parentOptional);
 				return true;
 			}
 		});
-		
+
 		optionsMenu.show();
 	}
 
+	protected void download(DownloadItem item, DownloadResourceGroup parentOptional) {
+		boolean handled = false;
+		if (parentOptional != null && item instanceof IndexItem) {
+			IndexItem indexItem = (IndexItem) item;
+			WorldRegion region = DownloadResourceGroup.getRegion(parentOptional);
+			context.setDownloadItem(region, indexItem.getTargetFile(context.getMyApplication()).getAbsolutePath());
+		}
+		if (item.getType() == DownloadActivityType.ROADS_FILE && parentOptional != null) {
+			for (IndexItem ii : parentOptional.getIndividualResources()) {
+				if (ii.getType() == DownloadActivityType.NORMAL_FILE) {
+					if (ii.isDownloaded()) {
+						handled = true;
+						confirmDownload(item);
+					}
+					break;
+				}
+			}
+		}
+		if(!handled) {
+			startDownload(item);
+		}
+	}
+	private void confirmDownload(final DownloadItem item) {
+		AlertDialog.Builder builder = new AlertDialog.Builder(context);
+		builder.setTitle(R.string.are_you_sure);
+		builder.setMessage(R.string.confirm_download_roadmaps);
+		builder.setNegativeButton(R.string.shared_string_cancel, null).setPositiveButton(
+				R.string.shared_string_download, new DialogInterface.OnClickListener() {
+					@Override
+					public void onClick(DialogInterface dialog, int which) {
+						if (item != null) {
+							startDownload(item);
+						}
+					}
+				});
+		builder.show();
+	}
+
+	private void startDownload(DownloadItem item) {
+		if (item instanceof MultipleIndexItem) {
+			MultipleIndexItem multipleIndexItem = (MultipleIndexItem) item;
+			List<IndexItem> indexes;
+			if (multipleIndexItem.hasActualDataToDownload()) {
+				// download left regions
+				indexes = multipleIndexItem.getIndexesToDownload();
+			} else {
+				// download all regions again
+				indexes = multipleIndexItem.getAllIndexes();
+			}
+			IndexItem[] indexesArray = new IndexItem[indexes.size()];
+			context.startDownload(indexes.toArray(indexesArray));
+		} else if (item instanceof IndexItem) {
+			IndexItem indexItem = (IndexItem) item;
+			context.startDownload(indexItem);
+		}
+	}
+
+	private void confirmRemove(@NonNull final DownloadItem downloadItem,
+	                           @NonNull final List<File> downloadedFiles) {
+		OsmandApplication app = context.getMyApplication();
+		AlertDialog.Builder confirm = new AlertDialog.Builder(context);
+
+		String message;
+		if (downloadedFiles.size() > 1) {
+			message = context.getString(R.string.delete_number_files_question, downloadedFiles.size());
+		} else {
+			OsmandRegions regions = app.getRegions();
+			String visibleName = downloadItem.getVisibleName(context, regions);
+			String fileName = FileNameTranslationHelper.getFileName(context, regions, visibleName);
+			message = context.getString(R.string.delete_confirmation_msg, fileName);
+		}
+		confirm.setMessage(message);
+
+		confirm.setPositiveButton(R.string.shared_string_yes, new DialogInterface.OnClickListener() {
+			@Override
+			public void onClick(DialogInterface dialog, int which) {
+				LocalIndexType type = getLocalIndexType(downloadItem);
+				remove(type, downloadedFiles);
+			}
+		});
+		confirm.setNegativeButton(R.string.shared_string_no, null);
+
+		confirm.show();
+	}
+
+	private void remove(@NonNull LocalIndexType type,
+	                    @NonNull List<File> filesToDelete) {
+		OsmandApplication app = context.getMyApplication();
+		LocalIndexOperationTask removeTask = new LocalIndexOperationTask(
+				context,
+				null,
+				LocalIndexOperationTask.DELETE_OPERATION);
+		LocalIndexInfo[] params = new LocalIndexInfo[filesToDelete.size()];
+		for (int i = 0; i < filesToDelete.size(); i++) {
+			File file = filesToDelete.get(i);
+			params[i] = new LocalIndexInfo(type, file, false, app);
+		}
+		removeTask.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, params);
+	}
+
+	@NonNull
+	private LocalIndexType getLocalIndexType(@NonNull DownloadItem downloadItem) {
+		LocalIndexType type = LocalIndexType.MAP_DATA;
+		if (downloadItem.getType() == DownloadActivityType.HILLSHADE_FILE) {
+			type = LocalIndexType.TILES_DATA;
+		} else if (downloadItem.getType() == DownloadActivityType.SLOPE_FILE) {
+			type = LocalIndexType.TILES_DATA;
+		} else if (downloadItem.getType() == DownloadActivityType.ROADS_FILE) {
+			type = LocalIndexType.MAP_DATA;
+		} else if (downloadItem.getType() == DownloadActivityType.SRTM_COUNTRY_FILE) {
+			type = LocalIndexType.SRTM_DATA;
+		} else if (downloadItem.getType() == DownloadActivityType.WIKIPEDIA_FILE) {
+			type = LocalIndexType.MAP_DATA;
+		} else if (downloadItem.getType() == DownloadActivityType.WIKIVOYAGE_FILE) {
+			type = LocalIndexType.MAP_DATA;
+		} else if (downloadItem.getType() == DownloadActivityType.TRAVEL_FILE) {
+			type = LocalIndexType.MAP_DATA;
+		} else if (downloadItem.getType() == DownloadActivityType.FONT_FILE) {
+			type = LocalIndexType.FONT_DATA;
+		} else if (downloadItem.getType() == DownloadActivityType.VOICE_FILE) {
+			type = downloadItem.getBasename().contains("tts") ? LocalIndexType.TTS_VOICE_DATA
+					: LocalIndexType.VOICE_DATA;
+		}
+		return type;
+	}
+
+	private Drawable getThemedIcon(DownloadActivity context, int resourceId) {
+		return context.getMyApplication().getUIUtilities().getThemedIcon(resourceId);
+	}
+
 	private Drawable getContentIcon(DownloadActivity context, int resourceId) {
 		return context.getMyApplication().getUIUtilities().getThemedIcon(resourceId);
 	}

OsmAnd/src/net/osmand/plus/download/ui/UpdatesIndexFragment.java

@@ -153,7 +153,8 @@ public class UpdatesIndexFragment extends OsmAndListFragment implements Download
 			for (IndexItem indexItem : indexItems) {
 				downloadsSize += indexItem.getSize();
 			}
-			String updateAllText = getActivity().getString(R.string.update_all, downloadsSize >> 20);
+			String updateAllText = getActivity().getString(
+					R.string.update_all, String.valueOf(downloadsSize >> 20));
 			updateAllButton.setText(updateAllText);
 			updateAllButton.setOnClickListener(new View.OnClickListener() {
 				@Override