I want download a particular city in my app. How can do this? There is another problem, too: when I use SDK of Mapbox 4.1.1 I can't add the class BoundingBox.
I have a problem, a code that exists on their site to download the map is not based just once. I have to stop running the program, and when I re-run it the map does not load again.
This is my code :
// Mapbox access token is configured here. This needs to be called either in your application
// object or in the same activity which contains the mapview.
MapboxAccountManager.start(this, getString(R.string.access_token));
// This contains the MapView in XML and needs to be called after the account manager
setContentView(R.layout.activity_offline_simple);
mapView = (MapView) findViewById(R.id.mapView);
mapView.onCreate(savedInstanceState);
mapView.getMapAsync(new OnMapReadyCallback() {
#Override
public void onMapReady(MapboxMap mapboxMap) {
// Set up the OfflineManager
offlineManager = OfflineManager.getInstance(SimpleOfflineMapActivity.this);
// Create a bounding box for the offline region
LatLngBounds latLngBounds = new LatLngBounds.Builder()
.include(new LatLng(13.1,32.6)) // Northeast
.include(new LatLng(13.6,32.9)) // Southwest
.build();
// Define the offline region
OfflineTilePyramidRegionDefinition definition = new OfflineTilePyramidRegionDefinition(
mapView.getStyleUrl(),
latLngBounds,
10,
20,
SimpleOfflineMapActivity.this.getResources().getDisplayMetrics().density);
// Set the metadata
byte[] metadata;
try {
JSONObject jsonObject = new JSONObject();
jsonObject.put(JSON_FIELD_REGION_NAME, "Triopli Libya");
String json = jsonObject.toString();
metadata = json.getBytes(JSON_CHARSET);
} catch (Exception exception) {
Log.e(TAG, "Failed to encode metadata: " + exception.getMessage());
metadata = null;
}
// Create the region asynchronously
offlineManager.createOfflineRegion(
definition,
metadata,
new OfflineManager.CreateOfflineRegionCallback() {
#Override
public void onCreate(OfflineRegion offlineRegion) {
offlineRegion.setDownloadState(OfflineRegion.STATE_ACTIVE);
// Display the download progress bar
progressBar = (ProgressBar) findViewById(R.id.progress_bar);
startProgress();
// Monitor the download progress using setObserver
offlineRegion.setObserver(new OfflineRegion.OfflineRegionObserver() {
#Override
public void onStatusChanged(OfflineRegionStatus status) {
// Calculate the download percentage and update the progress bar
double percentage = status.getRequiredResourceCount() >= 0
? (100.0 * status.getCompletedResourceCount() / status.getRequiredResourceCount()) :
0.0;
if (status.isComplete()) {
// Download complete
endProgress("Region downloaded successfully.");
} else if (status.isRequiredResourceCountPrecise()) {
// Switch to determinate state
setPercentage((int) Math.round(percentage));
}
}
#Override
public void onError(OfflineRegionError error) {
// If an error occurs, print to logcat
Log.e(TAG, "onError reason: " + error.getReason());
Log.e(TAG, "onError message: " + error.getMessage());
}
#Override
public void mapboxTileCountLimitExceeded(long limit) {
// Notify if offline region exceeds maximum tile count
Log.e(TAG, "Mapbox tile count limit exceeded: " + limit);
}
});
}
#Override
public void onError(String error) {
Log.e(TAG, "Error: " + error);
}
});
}
});
}
Your offline region specified is exceeding the 6000 tile count limit. You can read more about this on our help pages and use the tile calculator to either reduce the region size or change the zoom levels downloaded.
Or you can use setOfflineMapboxTileCountLimit on newer versions
offlineManager.setOfflineMapboxTileCountLimit(20000000);
Related
currently im developing an OSMDroid map mainly in offline mode. everything is ok except im trying to cache the route in offline using RoadManager. the route can be displayed in online but for offline it appeared as a straight line, not the lines of route just like during online. Below is the code for the road manager, the route cn be seen except in offline. It would be a great honor for me if any of u cn help
RoadManager code
RoadManager roadManager = new MapQuestRoadManager("bOqEG6oonVKVMJGQj9GOVPBEvgcfUofu");
roadManager.addRequestOption("routeType=shortest");
Road road = roadManager.getRoad(geopoints);
Polyline roadOverlay = RoadManager.buildRoadOverlay(road);
map.getOverlays().add(roadOverlay);
List<GeoPoint> roadPoints = roadOverlay.getPoints();
Log.d(TAG, "onCreate: road Points -> length:" + roadPoints.size());
codes that i want to be implemented in cache manager
List<GeoPoint> roadPoints = roadOverlay.getPoints();
Log.d(TAG, "onCreate: road Points -> length:" + roadPoints.size());
CacheManager but only for geopoints, unable to set roadpoint as parameter
CacheManager cacheManager = new CacheManager(map);
cacheManager.downloadAreaAsyncNoUI(getApplicationContext(),geopoints, 10, 15, new CacheManager.CacheManagerCallback() {
public static final String TAG = "CacheManagerCallback";
#Override
public void onTaskComplete() {
Log.d(TAG, "onTaskComplete: ");
}
#Override
public void updateProgress(int progress, int currentZoomLevel, int zoomMin, int zoomMax) {
Log.d(TAG, "updateProgress: " + progress);
}
#Override
public void downloadStarted() {
Log.d(TAG, "downloadStarted: ");
}
#Override
public void setPossibleTilesInArea(int total) {
Log.d(TAG, "setPossibleTilesInArea: " + total);
}
#Override
public void onTaskFailed(int errors) {
Log.d(TAG, "onTaskFailed: " + errors);
}
});
CacheManager is about caching of tiles. It doesn't handle overlays.
You will have to implement this yourself. For markers and polylines (and polygons), using the KML API and storing the result in a KML file may be a simple solution. Look at OSMBonusPack tutorial pages.
I am using the Google Maps API and the Google Maps Directions API for tracking the journey of a pilgrimage. My travel mode is walking and I have 8 waypoints placed along the way (Google doesn't allow you to add more for free).
The problem is that Google Maps is taking an odd unsought detour from the original path. I set up LatLng coordinates as waypoints accordingly to fix the problem, but the API remains stubborn on its resolve to take me 200 km away from the path and back again...
I have attached a screenshot of the app with this question. As you can see, in the bottom right corner, Google Maps takes a detour. How do I fix the problem? Thank You.
Here's some code:
String url = "https://maps.googleapis.com/maps/api/directions/json?origin=18.6769503," +
"73.8945701&destination=17.6774444,75.3329239&mode=walking&waypoints=" +
"via:Saswad,MH|via:Jejuri,MH|via:Natepute,MH|" +
"via:Velapur,MH|via:Bhandishegaon,MH|via:Wakhari,MH|" +
"via:17.685236,75.287492|via:17.682496,75.304931&" +
"key=MY_API_KEY";
RequestQueue requestQueue = Volley.newRequestQueue(this);
StringRequest jsonObjectRequest = new StringRequest(Request.Method.GET, url,
new Response.Listener<String>() {
#Override
public void onResponse(String response) {
Log.i("Json Data", "Successfully Retrieved - Starting Parse Process");
mapJsonData = response;
try {
parseJsonData(mapJsonData);
} catch (JSONException e) {
e.printStackTrace();
}
PolylineOptions polyOptions = new PolylineOptions().geodesic(true).
color(Color.RED).
width(10);
polyOptions.add(dnyaneshwarOrigin);
for (int i = 0; i < polyPoints.size(); i++) {
polyOptions.add(polyPoints.get(i));
}
polyOptions.add(vitthalMandir);
gMap.addPolyline(polyOptions);
final LatLngBounds.Builder builder = new LatLngBounds.Builder();
builder.include(dnyaneshwarOrigin);
builder.include(vitthalMandir);
mapLayout.getViewTreeObserver().addOnGlobalLayoutListener
(new ViewTreeObserver.OnGlobalLayoutListener() {
#Override
public void onGlobalLayout() {
LatLngBounds bounds = builder.build();
gMap.animateCamera(CameraUpdateFactory.newLatLngBounds
(bounds, 20));
}
});
}
}, new Response.ErrorListener() {
#Override
public void onErrorResponse(VolleyError error) {
Log.e("Response Error", "Could Not Retrieve Json Data");
Toast.makeText(MapActivity.this, "Error Retrieving Json Data",
Toast.LENGTH_SHORT).show();
}
});
Log.i("Request Queue", "Sending Json Request");
requestQueue.add(jsonObjectRequest);
Fixed the Problem. There was an alternative place with the same name as one of my way-points. I changed the way-point in my URL from a name to specific Lat-Long Coordinates and that solved the problem for me.
I have implemented functions to save and load snapshots using the Game API from Google Play Services. The next step I am working on is to handle conflicts when there is more then one snapshot. And here comes the problem.
In my understanding a conflict should occure when doing the following:
Save a snapshot after making game progress
Sign out (Google Play Services)
Delete all app data
Start game again and make some progress
Sign in (Google Play Services)
Save a new snapshop
Load snapshop
Unfortunately in my case no conflict occures. Instead the current game progress is being saved (step 6) and loading (step 7) just returns this snapshop. There is no indicator that snapshot (step 1) was overwritten - resulting in loosing game progress.
Code for saving:
private void executeSave() {
AsyncTask.execute(new Runnable() {
#Override
public void run() {
GoogleApiClient googleApiClient = App.getGoogleApiHelper().getmGoogleApiClient();
Snapshots.OpenSnapshotResult openResult = Games.Snapshots.open(googleApiClient, getSavegameFilename(), true).await();
Status resultStatus = openResult.getStatus();
Log.d(TAG, "openstatus is: " + resultStatus.getStatusMessage());
if(resultStatus.isSuccess()) {
byte[] localSavegame = getPersistingManager().readBytes();
if(localSavegame != null) {
Log.d(TAG, "Going to save:" + getPersistingManager().read());
createSnapshot(openResult.getSnapshot(), localSavegame).await();
}
}
}
});
}
private PendingResult<Snapshots.CommitSnapshotResult> createSnapshot(Snapshot snapshot, byte[] data) {
GoogleApiClient googleApiClient = App.getGoogleApiHelper().getmGoogleApiClient();
snapshot.getSnapshotContents().writeBytes(data);
SnapshotMetadataChange metadataChange = new SnapshotMetadataChange.Builder().build();
return Games.Snapshots.commitAndClose(googleApiClient, snapshot, metadataChange);
}
Code for loading:
private void executeLoad() {
AsyncTask.execute(new Runnable() {
#Override
public void run() {
GoogleApiClient googleApiClient = App.getGoogleApiHelper().getmGoogleApiClient();
Snapshots.OpenSnapshotResult result = Games.Snapshots.open(googleApiClient, getSavegameFilename(), true).await();
processResult(result, 0);
}
});
}
private void processResult(Snapshots.OpenSnapshotResult result, int retryCount) {
Status resultStatus = result.getStatus();
retryCount++;
if(resultStatus.isSuccess()) {
Log.d(TAG, "No conflict, thats great!");
handleSuccess(result);
} else if (resultStatus.getStatusCode() == GamesStatusCodes.STATUS_SNAPSHOT_CONFLICT) {
Log.d(TAG, "Aww... a conflict!");
handleConflict(result, retryCount);
} else {
Log.e(TAG, "Error while getting savegame, status message: " + resultStatus.getStatusMessage());
}
}
When performing the steps from above this is happening:
1) Save a snapshot after making game progress
absRemotePersistMgmt: openstatus is: STATUS_OK
absRemotePersistMgmt: Going to save:{"solvedQuestions":{"1":[],"2":[1]}}
6) Save a new snapshot
absRemotePersistMgmt: openstatus is: STATUS_OK
absRemotePersistMgmt: Going to save:{"solvedQuestions":{"1":[1,2],"2":[]}}
7) Load snapshop
absRemotePersistMgmt: No conflict, thats great!
What am I missing?
Sources I used:
https://developers.google.com/games/services/android/savedgames
https://www.youtube.com/watch?v=iHc2RBZs5T0
https://www.youtube.com/watch?v=naQhSkzNGAI
I am using Mapbox (4.2.1) to draw a line from my position to a target position. I have the intention of using the straight line as an extremely basic navigation aid. As such I am re-drawing the guide line OnMyLocationChanged(). However it appears that as my location changes it will draw the line to my new location but MyLocationView (User icon) does not update in accordance (See image below).
They will eventually end up meeting again but it takes some time. It seems that the line is getting drawn inside the accuracy radius, however I would prefer if it could draw the line straight from the user icon.
Is there a simple way to draw a line between the user (The actual icon on the map) and a location which updates as the user moves?
My OnMyLocationChanged is:
MapboxMap.OnMyLocationChangeListener listner = new MapboxMap.OnMyLocationChangeListener(){
#Override
public void onMyLocationChange(final #Nullable Location locationChanged) {
//If we are not targeting anything or we are not tracking location
if(target == null || !map.isMyLocationEnabled()) return;
mapView.getMapAsync(new OnMapReadyCallback() {
#Override
public void onMapReady(MapboxMap mapboxMap) {
//Log.i("LOC-MAPLINE", "Drawing from mapLoc call");
//Error if we don't have a location
if(!mapboxMap.isMyLocationEnabled() || locationChanged == null) return;
LatLng[] points = new LatLng[2];
final Location myLoc = locationChanged;
LatLng loc = new LatLng(myLoc.getLatitude(), myLoc.getLongitude());
LatLng dest = new LatLng(target.getLatitude(), target.getLongitude());
points[0] = loc;
points[1] = dest;
mapboxMap.removeAnnotations();
loadMarker(target);
PolylineOptions poly = new PolylineOptions()
.add(points)
.color(Color.parseColor("#3887be"))
.width(5);
line = mapboxMap.addPolyline(poly);
}
});
}
};
Any assistance is greatly appreciated, thank you!
EDIT (In regards to possible duplicate question - Google direction route from current location to known location)
I believe my question is different for a few reasons.
I am more concerned on getting the location of the user icon overlay rather than actual location (Accuracy issue)
I am not interested in getting turn for turn directions (Like those from a directions API)
I am using Mapbox rather than google maps (Not too sure but there could be some differences).
Nevertheless that question does not seem to answer my question
According to documentation you need only implement this method passing your currentLocation (origin) and destination
private void getRoute(Position origin, Position destination) throws ServicesException {
MapboxDirections client = new MapboxDirections.Builder()
.setOrigin(origin)
.setDestination(destination)
.setProfile(DirectionsCriteria.PROFILE_CYCLING)
.setAccessToken(MapboxAccountManager.getInstance().getAccessToken())
.build();
client.enqueueCall(new Callback<DirectionsResponse>() {
#Override
public void onResponse(Call<DirectionsResponse> call, Response<DirectionsResponse> response) {
// You can get the generic HTTP info about the response
Log.d(TAG, "Response code: " + response.code());
if (response.body() == null) {
Log.e(TAG, "No routes found, make sure you set the right user and access token.");
return;
} else if (response.body().getRoutes().size() < 1) {
Log.e(TAG, "No routes found");
return;
}
// Print some info about the route
currentRoute = response.body().getRoutes().get(0);
Log.d(TAG, "Distance: " + currentRoute.getDistance());
Toast.makeText(
DirectionsActivity.this,
"Route is " + currentRoute.getDistance() + " meters long.",
Toast.LENGTH_SHORT).show();
// Draw the route on the map
drawRoute(currentRoute);
}
#Override
public void onFailure(Call<DirectionsResponse> call, Throwable throwable) {
Log.e(TAG, "Error: " + throwable.getMessage());
Toast.makeText(DirectionsActivity.this, "Error: " + throwable.getMessage(), Toast.LENGTH_SHORT).show();
}
});
}
private void drawRoute(DirectionsRoute route) {
// Convert LineString coordinates into LatLng[]
LineString lineString = LineString.fromPolyline(route.getGeometry(), Constants.OSRM_PRECISION_V5);
List<Position> coordinates = lineString.getCoordinates();
LatLng[] points = new LatLng[coordinates.size()];
for (int i = 0; i < coordinates.size(); i++) {
points[i] = new LatLng(
coordinates.get(i).getLatitude(),
coordinates.get(i).getLongitude());
}
// Draw Points on MapView
map.addPolyline(new PolylineOptions()
.add(points)
.color(Color.parseColor("#009688"))
.width(5));
}
reference https://www.mapbox.com/android-sdk/examples/directions/
I'm working on MapBox off line. The code was OK, able to download map but after adding some peice of code which have nothing to do with the map, the download stop to work and the give an HTTP401 Error.
I've noticed that depending on where you call MapboxAccountManager.start sometimes it fails.
Here's the code:
#Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
DB_Handler db_ansb = new DB_Handler(Init_Carte.this,null,null,1);
// Get data from DB, about the map
HashMap<String, String> data_mapbox = db_ansb.do_get_mapbox(0);
the_mapbox_token = data_mapbox.get("tmapbox_token");
the_mapbox_style = data_mapbox.get("tmapbox_style");
the_mapbox_zoom_min = Integer.parseInt(data_mapbox.get("tmapbox_zoom_min"));
the_mapbox_zoom_max = Integer.parseInt(data_mapbox.get("tmapbox_zoom_max"));
the_mapbox_inter = Double.parseDouble(data_mapbox.get("tmapbox_inter"));
OfflineManager offlineManager = OfflineManager.getInstance(this);
MapboxAccountManager.start(this,the_mapbox_token);
setContentView(R.layout.activity_init_carte);
// Menu with APP compat
// https://developer.android.com/training/appbar/setting-up.html
Toolbar myToolbar = (Toolbar) findViewById(R.id.my_toolbar);
setSupportActionBar(myToolbar);
// Find our truck GPS position for road map
HashMap<String, String> my_truck = db_ansb.do_get_my_truck();
String str_truck_lagps = my_truck.get("frota_lagps");
String str_truck_logps = my_truck.get("frota_logps");
the_lagps_truck = Double.parseDouble(str_truck_lagps);
the_logps_truck = Double.parseDouble(str_truck_logps);
// Find accident location for road map
HashMap<String, String> my_inter = db_ansb.do_get_inter_resume();
String str_inter_lagps = my_inter.get("inter_lagps");
String str_inter_logps = my_inter.get("inter_logps");
the_lagps_inter = Double.parseDouble(str_inter_lagps);
the_logps_inter = Double.parseDouble(str_inter_logps);
// Compute area to get
HashMap<String, Double> data_gps_inter = db_ansb.do_get_bounds_inter(the_lagps_inter,the_logps_inter,the_mapbox_inter);
final double inter_lagps_ne = data_gps_inter.get("inter_max_lagps"); // Nord Est
final double inter_logps_ne = data_gps_inter.get("inter_max_logps");
final double inter_lagps_so = data_gps_inter.get("inter_min_lagps"); // Sud Ouest
final double inter_logps_so = data_gps_inter.get("inter_min_logps");
// Display what we're doing
tmp_id_msg = (TextView) findViewById(R.id.txt_action);
tmp_id_msg.setText(R.string.str_telechargement_carte);
// Create zone
LatLngBounds latLngBounds = new LatLngBounds.Builder()
.include(new LatLng(inter_lagps_ne, inter_logps_ne)) // Northeast
.include(new LatLng(inter_lagps_so, inter_logps_so)) // Southwest
.build();
OfflineTilePyramidRegionDefinition definition = new OfflineTilePyramidRegionDefinition(
the_mapbox_style,
latLngBounds,
the_mapbox_zoom_min,
the_mapbox_zoom_max,
(Init_Carte.this).getResources().getDisplayMetrics().density);
byte[] metadata;
try
{
JSONObject jsonObject = new JSONObject();
jsonObject.put(JSON_FIELD_REGION_NAME, "Carte");
String json = jsonObject.toString();
metadata = json.getBytes(JSON_CHARSET);
} catch (Exception e)
{
Log.e("TAG", "Failed to encode metadata: " + e.getMessage());
metadata = null;
}
// Get data
offlineManager.createOfflineRegion(definition, metadata, new OfflineManager.CreateOfflineRegionCallback()
{
#Override
public void onCreate(OfflineRegion offlineRegion)
{
offlineRegion.setDownloadState(OfflineRegion.STATE_ACTIVE);
// Monitor the download progress using setObserver
offlineRegion.setObserver(new OfflineRegion.OfflineRegionObserver()
{
#Override
public void onStatusChanged(OfflineRegionStatus status)
{
Log.i("DBUG","onStatusChanged");
// Calculate the download percentage and update the progress bar
double percentage = status.getRequiredResourceCount() >= 0 ?
(100.0 * status.getCompletedResourceCount() / status.getRequiredResourceCount()) :
0.0;
long long_pourcentage = Math.round(percentage);
String str_pourcentage = Long.toString(long_pourcentage)+" %";
// Display on screen
tmp_id_valeur = (TextView) findViewById(R.id.val_action);
tmp_id_valeur.setText(str_pourcentage);
Log.i("DBUG",str_pourcentage+"%");
if (status.isComplete())
{
// OK so now, ask the road
do_get_trajet();
}
}
#Override
public void onError(OfflineRegionError error)
{
// If an error occurs, print to logcat
Log.i("DBUG", "onError reason: " + error.getReason());
Log.e("DBUG", "onError message: " + error.getMessage());
}
#Override
public void mapboxTileCountLimitExceeded(long limit)
{
// Notify if offline region exceeds maximum tile count
Log.i("DBUG", "Mapbox tile count limit exceeded: " + limit);
}
});
}
#Override
public void onError(String error)
{
Log.e("TAG", "Error: " + error);
}
});
}
I enter the Aysnc part, get 3 or 4 times
Log.i("DBUG",str_pourcentage+"%");
with a value of 0% then get I get:
I/System.out: [CDS]rx timeout:10000
D/NativeCrypto: ssl=0x619629c8 sslWrite buf=0x41e60068 len=222 write_timeout_millis=0
D/NativeCrypto: ssl=0x619629c8 sslRead buf=0x41e60068 len=8192,timeo=10000
I/DBUG: onError reason: REASON_OTHER
E/DBUG: onError message: HTTP status code 401
D/com.mapbox.mapboxsdk.http.HTTPRequest: [HTTP] Request with response code = 401: Unauthorized
I've noticed same strange behaviour on another page: depending on the fact you perform or not, action before of after MapboxAccountManager.start(this,the_mapbox_token); it works or not.
Notice the token is correct.
Any idea?
After changing the token in our DB, it was OK but only for a short time: I was able to download 26% of the map and then, I get again the HTTP 401 message...
Found. In fact there is a small mistake in the code that help me understand: how can this code work sometimes, as I call
OfflineManager offlineManager = OfflineManager.getInstance(this);
MapboxAccountManager.start(this,the_mapbox_token);
so as I call the init after the use of the Lib? In fact all example at Mapbox are made with one activity performing all the jobs. So when you have more than one activity using Mapbox, you quickly believe you need to put a MapboxAccountManager.start in each ones. Which is wrong. In that case (more than one activity), you must call MapboxAccountManager.start at App level. Like that:
public class App_Start extends Application
{
#Override
public void onCreate()
{
super.onCreate();
String the_mapbox_token = "pk.eyJ1IjoiYW5.....";
MapboxAccountManager.start(this,the_mapbox_token);
}
public void customAppMethod()
{
// Custom application method
}
}
and add this class at application level on your Manifest:
<application android:icon="#drawable/ic_launcher" android:label="#string/app_name" android:theme="#style/AppTheme" android:name="net.ansb_brasil.xxxx.App_Start">
Concerning the fact the second activity was performing two times the download, it came from the fact the if (status.isComplete()) part of the onStatusChanged() is always called two times. Seems to be a bug in the Lib. On some example at Mapbox, they use a boolean flag in order to avoid taking two times this call in account.
As my first activity was downloading one map and then call a second activity for a second map, this "double call" had as result two call for the second activity and so many troubles.
Hope this will avoid headaches to others