Google Map loading issue in android listview

Question

I am trying to show mapview on my listview. Map cannot load in listview. If i touch the map view, map will load. If i scroll the listview mapview goes to unloaded initial st

Answer 1

Direct use of the mapView in a listView is a heavy operation. This is going to cause a delay and result in sluggish User Experience of your app. To avoid this behavior you have an alternative to use Static maps. This will enable Lazy Loading of maps in your list view and therby user wont have to tap map now and then.

I am providing a small example below that use this method. First create a list view from the data (Either API or DB). Then pass data such as latitude and longitude to a string with some static variables defined as follows.

String getMapURL = "http://maps.googleapis.com/maps/api/staticmap?zoom=12&size=360x180&markers=size:mid|color:green|"  
+ JOLocation.getString("latitude") 
+ "," 
+ JOLocation.getString("longitude") 
+ "&sensor=false";

The above constructed URL, when used in a browser, returns a .PNG file. Then, in my adapter for the activity, This method results in the lazy loading of the maps in the app where your marker displaying the coordinates are fetched at runtime, avoiding heavy work in the code.

Hope this would help!!!