yuvaraj119 / android-maps-extensions Goto Github PK

The v13 library includes the v4 library and will make this package easier to 
add to newer apps.

it would be great to have a variable that you could set for the minimum amount 
of markers possible in a cluster - sometimes you end up with the screen full of 
clusters of 2 or 3 which adds alot of clicking. 

I worked around it by setting a camera changed listener on the map and 
unclustering when the zoom level got above 16 (which seems reasonable) but 
there is probably a smarter way to do this.

thanks again for the awesome library, by the way.

What steps will reproduce the problem? Please provide sscce (short, self
contained, correct example) when possible.

init with:

        GoogleMap map = f.getExtendedMap();

        ClusteringSettings settings = new ClusteringSettings();
        settings.iconDataProvider(new DemoIconProvider(getResources()));
        settings.addMarkersDynamically(true);
        map.setClustering(settings);

        MarkerOptions options = new MarkerOptions().position(new LatLng(50, 0)).title("title");
        Marker marker = map.addMarker(options);

and later (e.g. on button click):

        marker.showInfoWindow();

and pan to show the marker.

What is the expected output? What do you see instead?

Info window should appear above the marker.

This package is missing its own MapFragment class.

I suspect that is because it currently uses the v4 support library. If this 
project switches to the v13 support library, that should enable the project to 
implement its own MapFragment class, extending the one provided in the Google 
library.

Looks like non clustered markers are not drawing after move via camera 
animation.

Steps:
- initial state is zoomed;
- see 01_initial_state;
- start to move camera via next code 
CameraUpdate cameraUpdate = 
CameraUpdateFactory.newLatLngBounds(builder.build(), 20);
- see 02_after_camera_animation, it's wrong;
- try to zoom out via map button "-" markers clustering, but single still 
missing;
- see 03_after_zoom_out, it's wrong;
- scroll (drug) map and missing single markers will apear;
- see 04_after_scroll, it's correct.

This is not so much of a bug (and certainly is of a lowest priority), but still 
might be in line with AMEs' mission of "improving GMaps":

Due to anomalies in my geospatial data, several markers appear to have exactly 
the same lat/long. When they are plotted on the map, they're always kept 
together as a cluster, clicking on which gives no visual feedback (btw, that's 
wonderful idea in the sample app to reposition camera to scale to the cluster 
content on click).

Any idea how to work around such situation?

Finally, got some time to try Maps Extensions for my app. Migration went 
smooth, although docs are scarce (and i can probably be considered GMaps power 
user, having thus a competitive advantage;-).

One thing that is probably worth improving is to implement some default cluster 
icons.

What i intuitively did (after updating imports) was to add this line to my code:

  googleMap.setClustering(new ClusteringSettings().addMarkersDynamically(true));

After that my app went bust:

java.lang.NullPointerException
at 
pl.mg6.android.maps.extensions.impl.BaseClusteringStrategy.getIconData(BaseClust
eringStrategy.java:68)
at 
pl.mg6.android.maps.extensions.impl.BaseClusteringStrategy.getFromCacheOrCreate(
BaseClusteringStrategy.java:59)
at 
pl.mg6.android.maps.extensions.impl.ClusterMarker.refresh(ClusterMarker.java:80)
at 
pl.mg6.android.maps.extensions.impl.ClusterRefresher.refreshAll(ClusterRefresher
.java:52)
at 
pl.mg6.android.maps.extensions.impl.GridClusteringStrategy.recalculate(GridClust
eringStrategy.java:327)
at 
pl.mg6.android.maps.extensions.impl.GridClusteringStrategy.onCameraChange(GridCl
usteringStrategy.java:92)
at 
pl.mg6.android.maps.extensions.impl.DelegatingGoogleMap$DelegatingOnCameraChange
Listener.onCameraChange(DelegatingGoogleMap.java:446)

Sure, it's trivial to grab DemoIconProvider implementation along with some 
resources from sample project, but it'd be nice to have it out of the box. 

What steps will reproduce the problem? Please provide sscce (short, self
contained, correct example) when possible.

Take the DemoActivity and replace addMarkersInPoland and addMarkersInWorld with 
a method that adds about 15000-20000 different points to the map.

What is the expected output? What do you see instead?

The map should be not laggy and responsive when using Clustering.
Especially in nearer zoom levels it becomes very laggy, because the size of 
clusters decreases. Maybe it should only care about the visible markers in 
order to keep a good performance. The offscreen markers could be removed and 
added on demand. This is more a feature request than a bug report, but for my 
purpose, as a clustering solution, the library is only usefull if it can also 
handle a really big amount of markers.

What steps will reproduce the problem? Please provide sscce (short, self 
contained, correct example) when possible.

add a draggable marker to the map, drag it somewhere, zoom out until it gets 
"swallowed" by a cluster

What is the expected output? 

dragged marker incorporated into cluster

What do you see instead?
app crashes with an out of index error (if I remember correctly) in 
GridClusteringStrategy. A fix seems to be adding if (ms.size()>0) at line 267

I am attempting to show user location and let them choose their location, 
within their accuracy range, but its non-trivial to zoom to show their accuracy 
at the most detailed level.

There is no easy method to zoom to a circle, while showing the entire circle, 
especially near the poles. 

Hi,

I need to draw some text on the markers only in the visible markers. And it's 
necessary to update these texts when a button is pressed.

There is an alternative to do that?

Thanks

What steps will reproduce the problem? Please provide sscce (short, self
contained, correct example) when possible.
Use LazyMarker.java's LatLng getPosition() method without try/catch statements.


What is the expected output? What do you see instead?
Exceptions should be gracefully handled.  Instead the app crashes!!!

What steps will reproduce the problem? Please provide sscce (short, self
contained, correct example) when possible.
Use LazyMarker.java's LatLng getPosition() method without try/catch statements.


What is the expected output? What do you see instead?
Exceptions should be gracefully handled.  Instead the app crashes!!!

NPE occured in "Declusterification" Demo.

The problem occured when changing CameraView (principaly when map Tilted).

The following line seems to return a Null object.

LatLng nextPosition = projection.fromScreenLocation(point);

Regards

Hi,

Great work you're doing!

I am wondering if it's possible to combine your extensions with the 
SherlockMapFragment? I have been unsuccessfully trying to combine them, I could 
really use getMarker() and clustering would also be great in my app :)

Thanks,
Martijn

Will be very usefull if will be possible add market which will not be grouped 
with another and will be still visible. For example I need to display search 
result and then POIs arount it and search result locaiton must be still 
visibled.

Link to the Google Play Service library as an external project instead of 
embedding it.

Hi

I wonder if there could be any options to cluster by marker type.
I mean, now I've got four diferent marker icons, and I want to cluster only 
between them.

Thank you for this wonderful library :-)

Hi,

I am just checking out this library looks exactly what I need, thanks for the 
effort. 
I am just playing around with it and I would like to create custom map markers 
for individual pins (I have worked out custom cluster icons.)

As this is an extension of Google Maps v2 I would assume that the normal method 
would work for creating custom markers however it is still using the standard 
icons.... am I missing something or is this functionality not handled by the 
library?

My code :

    Marker m =  map.addMarker(new MarkerOptions()
            .position(data.position)
            .icon(BitmapDescriptorFactory.fromResource(R.drawable.map_pin)));
    m.setData(data);


All the best

Can you extend Polaris2 instead of directly the Google Maps api? His library is 
built to be a base for what you are doing?

https://github.com/cyrilmottier/Polaris2

Hi

I've implemented your library(thanks :-D) but I need to filter my pins. 

It happened on recalculate() method in GridClusteringStrategy class 

Exactly, in line 268 there is this sentence:
List<DelegatingMarker> ms = cluster.getMarkersInternal();
DelegatingMarker first = ms.get(0);

Sometimes, ms is empty, so the exception is thrown, and so the app is closed.

So I added an extra line between those sentences, leaving it this way:

List<DelegatingMarker> ms = cluster.getMarkersInternal();
if(ms.isEmpty())continue;
DelegatingMarker first = ms.get(0);

Now it works fine, but I'm not sure if this is the best solution.

Thank you.

Will be great if would be possible to fill all markers from background thread 
to avoid blocking UI thread during load and fill data. Now maps extension use 
internal collection to keep all markers (or others map object). For example if 
I want to create markers from downloaded JSON file I must download and parse 
JSON in background thread and put all POIs to the same collection and then back 
in UI thread fill it to the map. Much easy and memory save will be store it 
directly to the maps extensions internal collection and after all will be done 
only call same method with display all data on the map

The Google Maps for Business SDK has a different package name, which causes 
many of the references to break.

https://developers.google.com/maps/documentation/business/mobile/android/

Method always throws exception.

old:
@Override
public void hideInfoWindow() {
    if (virtual != null) {
        virtual.hideInfoWindow();
    }
    throw new UnsupportedOperationException();
}

new:
@Override
public void hideInfoWindow() {
    if (virtual == null) throw new UnsupportedOperationException();
    virtual.hideInfoWindow();
}

I have downloaded the zip file from here and imported "android-maps-extensions" 
and "android-maps-extensions-demo" into my Eclipse workspace. The project 
"android-maps-extensions" has an error in the "SupportMapFragment.java" file 
which is "The hierarchy of the type SupportMapFragment is inconsistent". Also, 
after I corrected the build path in "android-maps-extensions-demo" to point at 
"android-maps-extensions" and this won't start as "The container "Android 
Dependencies" references non existing library 
"MAP_TO_PROJECT\bin\android-maps-extensions.jar"". I cannot find said jar file 
anywhere. Am I doing something fundamentally wrong - all I wanted to do is to 
get the demo working so I could check it out before possibly adding it to a 
project of mine.

I would be really grateful for any help.

Many thanks.

I use google maps extensions library in my app, when I update android version 
to 5.0 I get NullPointerException at line:

GoogleMap *map;
mMap = ((SupportMapFragment) 
getActivity().getSupportFragmentManager().findFragmentById(R.id.map)).getExtende
dMap();

When I debug this line, I detect that findFragmentById(R.id.map) is null.
Why R.Id.map is null? All project was compiled correctly.
Version of android-maps-exetnsions is 2.1.0. 

Can anybody help me?
Thanks.

layout:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/mapParent"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="fill_horizontal" >

<fragment
    android:id="@+id/map"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    class="com.androidmapsextensions.SupportMapFragment" />
</RelativeLayout> 

LogCat:

12-08 11:56:57.544: E/AndroidRuntime(20846): FATAL EXCEPTION: main
12-08 11:56:57.544: E/AndroidRuntime(20846): java.lang.NullPointerException
12-08 11:56:57.544: E/AndroidRuntime(20846):    at 
com.analyticadesign.eds.MapPage.setUpMapIfNeeded(MapPage.java:422)
12-08 11:56:57.544: E/AndroidRuntime(20846):    at 
com.analyticadesign.eds.MapPage.onActivityCreated(MapPage.java:321)
12-08 11:56:57.544: E/AndroidRuntime(20846):    at 
android.support.v4.app.Fragment.performActivityCreated(Fragment.java:1794)
...

I've a lot of poi in the map(22k), so I dynamically add and remove markers as 
the maps is scrolled or zoomed in/out.

In this case clustering isn't working, because in 
DelegatingOnCameraChangeListener.onCameraChange
clusteringStrategy.onZoomChange is called - and new cluster is calculated
then
onCameraChangeListener.onCameraChange is called - and new data is inserted but 
clusters are not updated.

These functions should be called in reverse order, so that 
clusteringStrategy.onZoomChange is called with the new data and cluster could 
be correctly computed

What steps will reproduce the problem? Please provide sscce (short, self
contained, correct example) when possible.

1. initialize(add to map) a marker with custom bitmap icon
2. when marker A is clicked, it's icon need to be changed to another bitmap
3. So, I put marker.setIcon(some_new_bitmapDescripter) in the marker's 
onMarkerCLick callback
4. it seems work fine first
5. but after create and click some markers repeatedly, app crashes with 
exception


What is the expected output? What do you see instead?

I want to see markers changing their icon when clicked. but, exception comes 
like below...

--------------------------------------------
    java.lang.IllegalArgumentException: Released unknown bitmap reference
            at maps.aq.o.a(Unknown Source)
            at maps.af.n.b(Unknown Source)
            at maps.af.bk.a(Unknown Source)
            at cpe.onTransact(SourceFile:204)
            at android.os.Binder.transact(Binder.java:326)
            at com.google.android.gms.maps.model.internal.d$a$a.i(Unknown Source)
            at com.google.android.gms.maps.model.Marker.setIcon(Unknown Source)
            at com.androidmapsextensions.lazy.LazyMarker.setIcon(LazyMarker.java:185)
            at com.androidmapsextensions.impl.DelegatingMarker.setIcon(DelegatingMarker.java:188)
            at com.livecity.s.activity.MainActivity.focusOnMarker(MainActivity.java:365)

Usual use case: allowing user to interact with single marker.

float zoom = map.getMinZoomNotClustered(marker);
map.animateCamera(CameraUpdateFactory.newLatLngZoom(marker.getPosition(), 
zoom));

The extensions library doesn't support the new GoogleMap.onMapLoadedCallback().

https://developers.google.com/maps/documentation/android/reference/com/google/an
droid/gms/maps/GoogleMap.OnMapLoadedCallback


This would be a great addition to the extensions library, as it allows the 
developer to know when the map isn't just tiles on the handset's screen.  Will 
we see this in an update to the extensions library, or is there a workaround to 
include this easily?  

Thank you.

What steps will reproduce the problem? Please provide sscce (short, self
contained, correct example) when possible.

1) Launch Android Emulator with Google APIs Level 17
2) Check Maps app is working correctly with Google Maps Android API v2 
3) Run android-maps-extensions-demo and check message 
"Google Maps Android API v2 only supports devices with OpenGL ES 2.0 and above".

What is the expected output? 
Demo works fine with Google Maps Android API v2.

What do you see instead?
Empty map with [+]/[-]/[my location] buttons.

I am working on a map with a bunch of markers. In some parts of the code I call 
myMap.getMarkers() to obtain a List of them. I happen to find a different order 
within this list in every call. 
I expected the list to be in the same order as when the markers were initially 
added to the map.
Which is the logic followed by this method?
Thanks and regards

In the DemoActivity replace OnClusterClick with this:

public void onClusterClick(View view) {
    map.clear();
    map.setClustering(new ClusteringSettings().iconDataProvider(new DemoIconProvider(getResources())));
        MarkerGenerator.addMarkersInPoland(map);
        MarkerGenerator.addMarkersInWorld(map);
    }

Then run the app and click Cluster twice

When inserting a lot of data like in the above example you'll see appearing the 
markers and then the clusters.

It could be useful some function to massively add markers and directly display 
the clusters without inserting and deleting the markers on the map

1.3.1 version + Google Play Services r9

1) Add markers by map.addMarker(markerOptions);
2) Remove all markers by marker.remove();
3) After this zoom-in or zoom-out to call onCameraChange event

1.2 - ok

Stacktrace:

08-01 04:36:46.536: ERROR/AndroidRuntime(25742): FATAL EXCEPTION: main
        java.lang.IndexOutOfBoundsException: Invalid index 0, size is 0
        at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:255)
        at java.util.ArrayList.get(ArrayList.java:308)
        at pl.mg6.android.maps.extensions.impl.GridClusteringStrategy.recalculate(GridClusteringStrategy.java:268)
        at pl.mg6.android.maps.extensions.impl.GridClusteringStrategy.onCameraChange(GridClusteringStrategy.java:92)
        at pl.mg6.android.maps.extensions.impl.DelegatingGoogleMap$DelegatingOnCameraChangeListener.onCameraChange(DelegatingGoogleMap.java:442)
        at com.google.android.gms.maps.GoogleMap$2.onCameraChange(Unknown Source)
        at com.google.android.gms.internal.cn$a.onTransact(Unknown Source)
        at android.os.Binder.transact(Binder.java:347)
        at bgs.a(SourceFile:93)
        at maps.ah.s.a(Unknown Source)
        at maps.ah.t.run(Unknown Source)
        at android.os.Handler.handleCallback(Handler.java:730)
        at android.os.Handler.dispatchMessage(Handler.java:92)
        at android.os.Looper.loop(Looper.java:137)
        at android.app.ActivityThread.main(ActivityThread.java:5103)
        at java.lang.reflect.Method.invokeNative(Native Method)
        at java.lang.reflect.Method.invoke(Method.java:525)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
        at dalvik.system.NativeStart.main(Native Method)

What steps will reproduce the problem? Please provide sscce (short, self
contained, correct example) when possible.

map.setClustering(new ClusteringSettings() //
        .iconDataProvider(new ClusterIconDataProvider(getResources())) //
        .clusterSize(96) //
        .addMarkersDynamically(true));

// add about 200 markers 

marker.showInfoWindow(); // not cluster, visible

What is the expected output? What do you see instead?

Info window bubble expected, but nothing happens.

Looks like 
pl.mg6.android.maps.extensions.lazy.LazyMarker.java line 166 
have marker == null

lib version 1.3

Hi, firstly; thanks for your great extension, your clustering library is really 
useful, I had partly built one myself but it was quite buggy.

I've got a bit stuck while trying to access the displayed markers, I can access 
all of the markers, but ideally I was to get the clustered ones.

I'm currently using an onClickListener in a list of places I've got, what I 
want it to do, is when a place is clicked, find where it is clustered and keep 
zooming into that location until it is no longer clustered and then show the 
infowindow.

I've tried doing map.getMarkers(); but it just shows all the markers from my 
result. Is there any way to get the visible (clustered) markers?

If not it would be great to be able to do it. Thanks!

(if this already exists, please let us know how to do so)
Google map v2 in August 2013 Added a snapshot() method to the GoogleMap.

https://developers.google.com/maps/documentation/android/releases#august_2013

I can use it with google-play-services_lib,but can't use by 
android-maps-extensions.

how can i do ??

I really want to use this method><  thank!

Thanks for library. I have problem...The map markers are of different types. 
The problem that the markers of different types are clustered together. Is it 
possible to cluster the markers by type in different clusters? Sorry for my 
English ...

Add a field and methods to the marker interface that would allow markers to be 
excluded from clusters.

e.g.
void excludeFromClusters(boolean exclude);

Then, modify other clustering classes to check this property before clustering.

If some markers are located to close to each other, there is no way to show 
them separately (even in max zoom level).

Hello 

I am very thankful that you are extending the android map v2 as its really 
needed. I am having the requirement of drawing the arc like line between two 
points. You think you can help me with that. 

Thanks in advance

What steps will reproduce the problem? Please provide sscce (short, self
contained, correct example) when possible.

I'm writing a sample app as a proof of concept. 
I'm loading the map, and adding 2000 markers. Nothing else.
When markers are being added the map does not react to any touches. I've got 
the zoom in/out controls on screen, I can tap them but there's no response. 
After the markers are added there's still no response from the map.
When I suspend the app and resume it, I can see the map refreshed to the zoom 
level and position just like all of my actions from before the suspension were 
interpreted. The map is responsive.


What is the expected output? What do you see instead?

I would expect the map to be responsive after I load the markers.

I believe I'm doing something wrong here, but I would be grateful for a pointer.

Thanks


BTW.
Great work!

What steps will reproduce the problem? Please provide sscce (short, self
contained, correct example) when possible.

1) Run demo app
3) Click Narvik / Tromsr (Norway) cluster
4) Zoom in

What is the expected output? What do you see instead?

Info window disappears, when cluster is not changed in any way (markers count 
inside).

Hi,

Thanks for your library, it is very helpful !

It would be a good thing to mavenize this project, many users use a maven 
configuration and the dependencies management is really easier !

Do you know how do that ? If you want some help, don't hesitate to ask me ;)

If all the Markers inside of two different clusters are located near to the 
cluster boarder of the two clusters the Cluster Markers overlaps.
If the ClusterMarkers are close together they should be clustered together.

It woulb be nice if you could add such a feature.