CODEWITHSUNDEEP
androidandroid-mapview
LA_
LA_

Reputation: 20419

How to display balloon on the MapView, once map is shown?

I use android-mapviewballoons library to show balloons. So, once user clicks on my marker, balloon is shown.

The question I have: how to display the balloon for particular item without waiting for user click?

Upd. how to identify i? Currently I have the following:

public class Map extends MapActivity {
    public void onCreate(Bundle savedInstanceState) {
        // here I have extras.getDouble("lat") and extras.getDouble("lng") - 
        // the location balloon should be shown for
        ...
        itemizedOverlay = new MapOverlay(drawable, mapView);
        for (int i = 0; i < items.getCount(); i++) {
           // here I add markers, one of them will have lat and lng equal to 
           // the values passed in extras

    public class MapOverlay extends BalloonItemizedOverlay<OverlayItem> {
        ...
        protected OverlayItem createItem(int i) {

Also, with regards to the following code:

//  BalloonOverlayView is a raw type. References to generic type BalloonOverlayView<Item> should be parameterized
BalloonOverlayView bov = new BalloonOverlayView(context, 50);
// What is item there? should be getItem(i)?
bov.setData(item);
// The method setPosition(int) is undefined for the type BalloonOverlayView
BalloonOverlayView.setPosition(i);

Upvotes: 1

Views: 5516

Answers (2)

dev mz
dev mz

Reputation: 397

Try this

itemizedOverlay.onTap(point2, mapView);

you have to identify it through the Geopoint, here is the description

onTap

public boolean onTap(GeoPoint p, MapView mapView)

Handle a tap event. A tap will only be handled if it lands on an item, and have overridden onTap(int) to return true

The balloons library already overwrote it, so you just have to call the onTap method.

Upvotes: 3

Harshad
Harshad

Reputation: 8014

Plase refer this tutorial.

In @Override protected OverlayItem createItem(int i) method you can inflate that ballon ovarlay for your particular index. suppose your specific point is 2 then you can do following in above method 

if(i==2){
BalloonOverlayView bov = new BalloonOverlayView(context, 50);
          bov.setData(item);
          BalloonOverlayView.setPosition(i);
          BalloonOverlayView.setGeoPoint(geoPoint);

          MapView.LayoutParams params = new MapView.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, geoPoint,MapView.LayoutParams.BOTTOM_CENTER);
          params.mode=MapView.LayoutParams.MODE_MAP;
          mapView.addView(bov, params);
}

Upvotes: 4

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