Detect if the OSM Mapview is still loading or not in android

Detect if the OSM Mapview is still loading or not in android

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I have included Open Street Maps in my android application. In the mapview, user should be able to capture the screen after the map is fully loaded. But currently user can capture the image even when the mapview is still loading. Can someone tell me how to detect when the mapview is fully loaded?

Below is my code to load the mapview:

public class MainActivity extends Activity  {
    MapView mapView;
    MyLocationOverlay myLocationOverlay = null;
    ArrayList<OverlayItem> anotherOverlayItemArray;
    protected ItemizedOverlayWithBubble<ExtendedOverlayItem> itineraryMarkers;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        mapView = (MapView) findViewById(R.id.mapview);

        final ArrayList<ExtendedOverlayItem> waypointsItems = new ArrayList<ExtendedOverlayItem>();
        itineraryMarkers = new ItemizedOverlayWithBubble<ExtendedOverlayItem>(this, waypointsItems, mapView, new ViaPointInfoWindow(R.layout.itinerary_bubble, mapView));
        mapView.getOverlays().add(itineraryMarkers);

        mapView.setTileSource(TileSourceFactory.MAPNIK);
        mapView.setBuiltInZoomControls(true);
        MapController mapController = mapView.getController();
        mapController.setZoom(1);
        GeoPoint point2 = new GeoPoint(51496994, -134733);
        mapController.setCenter(point2);

        Drawable marker=getResources().getDrawable(android.R.drawable.star_big_on);
        GeoPoint myPoint1 = new GeoPoint(0*1000000, 0*1000000);
        ExtendedOverlayItem overlayItem = new ExtendedOverlayItem("Title Test Loc", "Desc", myPoint1, this);
        overlayItem.setMarkerHotspot(OverlayItem.HotspotPlace.BOTTOM_CENTER);
        overlayItem.setMarker(marker);
        overlayItem.setRelatedObject(0);
        itineraryMarkers.addItem(overlayItem);
        mapView.invalidate();



        myLocationOverlay = new MyLocationOverlay(this, mapView);
        mapView.getOverlays().add(myLocationOverlay);
        myLocationOverlay.enableMyLocation();

        myLocationOverlay.runOnFirstFix(new Runnable() {
            public void run() {
             mapView.getController().animateTo(myLocationOverlay.getMyLocation());
               } 
           });


    }

    @Override
     protected void onResume() {
      // TODO Auto-generated method stub
      super.onResume();
      myLocationOverlay.enableMyLocation();
      myLocationOverlay.enableCompass();
      myLocationOverlay.enableFollowLocation();
     } 

     @Override
     protected void onPause() {
      // TODO Auto-generated method stub
      super.onPause();
      myLocationOverlay.disableMyLocation();
      myLocationOverlay.disableCompass();
      myLocationOverlay.disableFollowLocation();
     }

Take a look at TilesOverlay and the TileLooper implementation. This is what we use to load and then draw each tile on the screen. In handleTile(...) we attempt to get the tile from the tile provider mTileProvider.getMapTile(pTile). If that returns a Drawable then the tile is loaded, if not it will return null.

A simple way to do this is to extend TilesOverlay, override drawTiles(...) and call your own TileLooper before calling super.drawTiles(...) that will check to see if all the tiles that get passed to handleTile(...) are not null. To use your TilesOverlay call mMapView.getOverlayManager().setTilesOverlay(myTilesOverlay).

map, Take a look at TilesOverlay and the TileLooper implementation. This is what we use to load and then draw each tile on the screen. In handleTile() we attempt to � I have included Open Street Maps in my android application. In the mapview, user should be able to capture the screen after the map is fully loaded. But currently user can capture the image even when the mapview is still loading. Can someone tell me how to detect when the mapview is fully loaded? Below is my code to load the mapview:


I created a class named "MyTileOverlay" by extending TilesOverlay and it contins this class:

https://code.google.com/p/osmdroid/source/browse/trunk/osmdroid-android/src/main/java/org/osmdroid/views/overlay/TilesOverlay.java?r=1086

Then when setting up the mapview, I do this:

this.mTilesOverlay = new MyTileOverlay(mProvider, this.getBaseContext());

As instructed by kurtzmarc, I used handleTile() to check whether all tiles are being loaded or not:

@Override
        public void handleTile(final Canvas pCanvas, final int pTileSizePx,
                final MapTile pTile, final int pX, final int pY) {
            Drawable currentMapTile = mTileProvider.getMapTile(pTile);
            if (currentMapTile == null) {
                currentMapTile = getLoadingTile();
                Log.d("Tile Null", "Null");
            } else {

                Log.d("Tile Not Null", "Not Null");
            }

            if (currentMapTile != null) {
                mTileRect.set(pX * pTileSizePx, pY * pTileSizePx, pX
                        * pTileSizePx + pTileSizePx, pY * pTileSizePx
                        + pTileSizePx);
                onTileReadyToDraw(pCanvas, currentMapTile, mTileRect);
            }

            if (DEBUGMODE) {
                mTileRect.set(pX * pTileSizePx, pY * pTileSizePx, pX
                        * pTileSizePx + pTileSizePx, pY * pTileSizePx
                        + pTileSizePx);
                mTileRect.offset(-mWorldSize_2, -mWorldSize_2);
                pCanvas.drawText(pTile.toString(), mTileRect.left + 1,
                        mTileRect.top + mDebugPaint.getTextSize(),
                        mDebugPaint);
                pCanvas.drawLine(mTileRect.left, mTileRect.top,
                        mTileRect.right, mTileRect.top, mDebugPaint);
                pCanvas.drawLine(mTileRect.left, mTileRect.top,
                        mTileRect.left, mTileRect.bottom, mDebugPaint);
            }
        }

This method ensures whether the loading procedure is finalized or not:

@Override
            public void finaliseLoop() {
                Log.d("Loop Finalized", "Finalized");
            }

I can also use this method to identify whether all tiles have been loaded or not:

public int getLoadingBackgroundColor() {
            return mLoadingBackgroundColor;
        }

Hope this help someone!

Map load status, Determine the map's load status which can be: `NOT_LOADED`, ` FAILED_TO_LOAD`, `LOADING`, The LoadStatus is LOADED when any of the following criteria are met: package com.esri.arcgisruntime.sample.maploaded; import android.graphics. mapView); // inflate TextView of the map load status from the layout� osmdroid (Google code, similar to Android's MapView) Mapsforge (Google code, offline vector rendering) In addition to that, the Android wiki page has a full list of OSM software running on Android, including not just map viewers, but also routing and editing applications. A lot of these are Open Source, so code sharing/reuse would be a possibility.


Since osmdroid API 6.1.0, it's quite easy:

// check completeness of map tiles
TileStates tileStates = mapView.getOverlayManager().getTilesOverlay().getTileStates();

// evaluate the tile states
if (tileStates.getTotal() == tileStates.getUpToDate())
{
    // map is loaded completely

}
else
{
    // loading is still in progress

}

/* meaning of TileStates
    .getUpToDate()   not expired yet
    .getExpired()    expired
    .getScaled()     computed during zoom
    .getNotFound()   default grey tile
    ---------------------------------------
    .getTotal()      sum of all above
*/

Android, For a map-viewing experience similar to that of the Google Maps application, check but you may find an Android editor application to be much more convenient. It is also possible to load OpenStreetMap-based maps into the following These applications are specialized OSM editors not allowing direct editing of data:. So I've been trying to detect click events to a MapView in order to start a method with the click. Trying any variation of standard onClickListener or onTouch were no good. I do not want to add an overlay of to "catch" clicks on a certain part of the map. I want the map to continue to be responsive to drag,zooms, etc. Any help would be appreciated.


Blank or missing map tiles | Help, for iOS � for Android Maps can fail to load for a variety of reasons related to your Mapbox account, your code, the If you are using a Mapbox Studio style, check to make sure the style URL you are using contains a valid style ID. If you exceed the API requests included in the free tier and do not have a valid payment � As per asked in here I am trying to implement OSM MapView in fragments. I've seen people done this in onCreateView return new MapView(getActivity(), 256); However I am not sure how to change my implementation of an Activity into Fragments right now my Activity codes are like this: MapView myO


First steps with the Mapbox Maps SDK for Android | Help, Walk through installing the Mapbox Maps SDK for Android, getting a map on the Without one, you'll still be able to preview the app on an Android Virtual Device If you need help installing Android Studio or creating your first project, see the This contains the MapView in XML and needs to be called after the access� To use data from OSM in Android there's a free library: mapsforge. It can be used to display online tiles as well as offline vector maps (converted with a filter for osmosis). But this requires a lot of Java knowledge and I'm not sure if you are able to do what you have planned.


osmdroid, osmdroid's MapView is basically a replacement for Google's MapView class. First of all, create your Android project, and follow HowToMaven if Android 6.0+ devices require you have to check for "dangerous" permissions at runtime. before map is created. not depicted here //load/initialize the osmdroid� OpenStreetMap is a free, editable map of the world. The OpenStreetMapView is a (almost) full/free replacement for Android's MapView class. See the osmdroid googlecode page for more details. The capabilities of OSM and Google maps are similar; some people prefer OSM because of the fewer limitations on what you can do with the data.