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Adding Markers on Google maps v2 Android


Adding Markers on Google maps v2 Android

By : user2956965
Date : November 22 2020, 03:03 PM
wish helps you I followed the tutorial in , have a look using this methed we are adding marker on google map
code :
mMap.addMarker(new MarkerOptions().position(new LatLng(22.7253, 75.8655)).title("Indore"));
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;

import android.os.Bundle;
import android.support.v4.app.FragmentActivity;

public class BasicMapDemoActivity extends FragmentActivity
{
    private GoogleMap mMap;

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

    @Override
    protected void onResume() {
        super.onResume();
        setUpMapIfNeeded();
    }

    private void setUpMapIfNeeded() 
    {
        if (mMap == null) 
        {
            mMap = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map)).getMap();
            if (mMap != null) 
            {
                setUpMap();
            }
        }
    }

    private void setUpMap() 
    {
        mMap.addMarker(new MarkerOptions().position(new LatLng(22.7253, 75.8655)).title("Indore"));
  // here is marker Adding code
    }
}


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Google Maps Android API v2 very slow when adding lots of Markers

Google Maps Android API v2 very slow when adding lots of Markers


By : 孔祥峰
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further Alright, after trying a couple more things I figured out how to determine if a given point is in the visible region, and it's pretty simple:
code :
//Note: this.mMap is an instance of GoogleMap

LatLngBounds bounds = this.mMap.getProjection().getVisibleRegion().latLngBounds;

LatLng markerPoint = new LatLng(item.getLatitude(), item.getLongitude());

if(bounds.contains(markerPoint))
{
    this.mMap.addMarker(new MarkerOptions(...));    
}
Refresh Android Google maps v2 after adding markers

Refresh Android Google maps v2 after adding markers


By : user3419591
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , Since googleMap.appMarker() seems not to get called, you propaply catch an Exception when calling content.getRelation().equals("son").
Adding multiple markers in Google Maps API v2 Android

Adding multiple markers in Google Maps API v2 Android


By : user3729218
Date : March 29 2020, 07:55 AM
seems to work fine I want to add multiple markers in my map, but I don't know the way.
code :
ArrayList<MarkerData> markersArray = new ArrayList<MarkerData>();

for(int i = 0 ; i < markersArray.size() ; i++) {

    createMarker(markersArray.get(i).getLatitude(), markersArray.get(i).getLongitude(), markersArray.get(i).getTitle(), markersArray.get(i).getSnippet(), markersArray.get(i).getIconResID());
}


protected Marker createMarker(double latitude, double longitude, String title, String snippet, int iconResID) {

    return googleMap.addMarker(new MarkerOptions()
            .position(new LatLng(latitude, longitude))
            .anchor(0.5f, 0.5f)
            .title(title)
            .snippet(snippet)
            .icon(BitmapDescriptorFactory.fromResource(iconResID)));
}
Adding Multiple Markers to Android Google maps with JSON.

Adding Multiple Markers to Android Google maps with JSON.


By : m1chiko
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , I was wondering how you add multiple markers to a Google Map in Android.The set up I have is the coordinates are stored in an online database and then encoded into JSON. These JSON coordinates are then parsed through a JSON parser class to retrieve the information and stored in an arrya. However I can't seem how to figure out how to iterate through the JSON Array where the coordinates are stored to add them as markers to a google map. , try this
Adding 5900+ markers to Google Maps on Android. How to do efficiently

Adding 5900+ markers to Google Maps on Android. How to do efficiently


By : momo
Date : March 29 2020, 07:55 AM
This might help you I don't think any user will find a visual filled with 5900+ markers useful.
There's no way to make this problem go faster unless you can figure out a meaningful way to display less data. You need to filter those locations better. Maybe only displaying those stores within a 10 mile radius of the current GPS location would work better. It'll render faster, and your users will thank you for not confusing them.
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