mapview

got nullpointer exception when click the bubble in the mapview?

i m workin on mapview and put the marker when i click the marker it shows a bubble. if i click that bubble it shows the toast perfectly i want to start the activity there. then it shows an exception this my code @Override protected boolean onBalloonTap(int index) { try{ Activity a=new Activity(); a.startActivity(new Intent(a.getBase...

trying to get the most accurate device location from GPS or Network in Android

I am trying to determine the most accurate location of a device, in the shortest time possible. I am storing the data as a geopoint, and have it displayed on a mapview. The last time I activated the GPS on my device and let it get a location lock, i was approx 80 miles from where I am now. I have a location manager setup and a locatio...

map view inside table view cell

Hello, i have another (probably unanswered) question about map views. I have a map view inside a table view cell and i want to disable the table view scrolling if the scrolling begins in the map view. Also the zooming gesture does not function normally. It only functions if the zooming gesture is done horizontally on the iphone display. ...

OnTouchEvent in a MapItemizedOverlay

Hi, newbie here ... I have a MapView with a MapItemizedOverlay, like this : Drawable drawable = this.getResources().getDrawable(R.drawable.androidmarker); itemizedOverlay = new MapItemizedOverlay(drawable); OverlayItem overlayitem = new OverlayItem(p, "", ""); itemizedOverlay.addOverlay(overlayitem); mapOverlays.add(itemizedO...

how to get the long & lat value of four corners in the mapview in android?

i working on map view. i want to put overlay item on the map view. that overlay items are all depends on currently showing map view and zoom level. how to get current map view's longitude and latitude of that four corner and how to analyze how many overlay item inside it. also we have to check thee zoom level.Any Idea? how to do it? ...

how to handle the visibility of the ItemizedOverlay in mapview in android?

i want set the visibility to itemized overlay in map view. if the zoom level is less than 10 i want to set visibility of overlay is GONE else VISIBLE. how to do that? and also cant set zoom level Listener. ...

Connecting GPS coordinates taken from a database in Android using Overlay

I am currently building an application that allows users to track where their phone has been on a Google Map. At the moment, when the onLocationChanged() method is called, the application stores the current GPS longitude and latitude in a database and calls the animateTo() method to the current position. Using SDK 1.5, how would I go a...

NullPointerException in ItemizedOverlay.getIndexToDraw

I have a relatively simple MapActivity that I'm trying to make display a list of "camps" within a given map region. I've created a custom subclass of OverlayItem called CampOverlayItem, a custom ItemizedOverlay called CampsOverlay that returns CampOverlayItems, and of course a MapActivity subclass that populates the map. I'm pulling the...

Adding visible "Markers" to represent Geopoints to a MapView using ItemizedOverlay in Android

Hello, I am building an application which stores GPS locations in a SQLite database and then outputs the data onto a MapView using an Overlay by drawing a red line between the points. I want to be able to show graphical markers (images) for each of these points as well as the red line. My code is as follows: public class MyOverlay ex...

route finding between two designation on maps in android?

i want to just find a shortest path between the location on map. we have to pass the location's geopoint then click the button to get direction. it will show the shortest path like a blue line. how to do this? i search about this. many of them import a package com.google.googlenav.*;. where i have to get this? Any Idea???? Edit:got down...

how to create Map Markers on UIImageView?

Hi, I am using static images in Imageview to show some area. I want to place pin markers that we can create on google maps. What is a good way to implement this? Thanks in advance. ...

IllegalArgumentException: width and height must be > 0 during zoomOut in Google MapView

I'm trying to zoom in on a Google MapView on step in the oncreateMethod of my Activity. Everytime I try to zoom the map via the mapController I get an IllegalArgumentException: 04-15 10:16:51.012: ERROR/AndroidRuntime(528): java.lang.RuntimeException: Unable to start activity ComponentInfo{android.client/android.client.ui.showstores.Sto...

Mapview getLatitudeSpan and getLongitudeSpan not working

Hi! Sometimes when trying to get the Latitude span or Longitude span of a mapview with getLatitudeSpan() and getLongitudeSpan() I get 0 and 360*1E6 respectively. This doesn't happen always but it is a problem, has anybody got this problem? Any workarounds? I tried using getProjection() too but I get the same problem. Here is the piece of...

Drop Pin on Default Google Maps from My App in Android?

hi all, i have an address for a location. when i click some button in my app. it should redirect to default google map in android and drop the pin to that particular location. how to do that? Any Idea? ...

Strange activity stack behavior when using MapActivity

I have the following activity structure in my application A simple "splash screen" activity is started when the application is fired up (let's call it "Splash"). This activity starts the main activity when the user presses a button (I will call it "Main"). Main can in turn start two activities from the menu. The first activity present...

Does the Quick Search Box search the database in Android? how?

i have an database with the values of latitude and longitude. i would need to search those values depends on the user input. does the quick search box can search only the database value with the type-to-search feature. Else i want to put a separate EditText and then do the the search process.. if QSB is possible then how to do that? i wa...

Getting coordinates when clicking anywhere on a MapView

I just cant get this working. I tried using the code below with onTouchEventand and it doesn't work. If i return true at the end of the method, i get the toast with the coordinates but can't move a map, and if i return false, i can move a map but cant display a toast after the user clicks on a map. If i get it right, the other onTap me...

draw is being constantly called in my android map overlay

I'm trying to draw a route onto my MapView. I've extended Overlay and implemented the draw() method. The route is displayed properly, although while debugging, I added a breakpoint on draw(), and noticed it is being called constantly. I only want it to be re-drawn if someone moves the map or zooms (the draw take into account these chang...

Weird Overlay draw behaviour when zooming in the MapView [android]

I've extended Overlay and implemented draw() in order to draw some stuff onto the map. When zooming is done through mapController.zoomIn() (called when doubleTapping the map), the overlay is drawn properly onto the map. BUT whenever I zoom in/out with the built in zoom controller, the overlay is not drawn properly and panning the map is...

Android: Cannot cast from View to MapView

I'm trying to run the Android MapView example, and am getting a 'Cannot cast from View to MapView' error in Eclipse. My layout is as follows <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/mainlayout" android:orientation="vertical" android:layout_width=...