Android creating BitmapDescriptor exception

Question

I\'m writing an application that works alot with google map and markers on it. My task is to create and display some amount of markers on google map. Markers have custom ima

Answer 1

Well here is what i got. Looks like BitmapFactory can't create Bitmap if it don't have enought memory. So if GC didn't do job and u don't have enough memory u'll get this exception. In my case that was pretty often because i need to generate about 10-20 markers every time user moves google map camera.

First of all don't be stupid like me and don't use android-maps-utils just for IconGenerator :) I wrote my own class that generate's BitmapDescriptor from Bitmap and caches it in LruCache. Here's good tutorial for caching Bitmaps. You can do almost the same for BitmapDescriptor. Pay attention to LruCache size. You can't get BitmapDescriptor size in bytes, so you need to think about amount of these objects in LruCache. Just look at your bitmap size and do some calculations.

If you need text in your image do something like this:

Bitmap bitmap = BitmapFactory.decodeResource(context.getResources(), R.drawable.mark_active_grey).copy(Bitmap.Config.ARGB_8888, true);

    Canvas canvas = new Canvas(bitmap);
    canvas.drawText(offersCount,
            canvas.getWidth()/2,
            canvas.getHeight()/2 - ((clustersPaint.getFontMetrics().ascent + clustersPaint.getFontMetrics().descent) / 2) ,
            clustersPaint);

Sorry for bad english and i hope this information will be useful to some one.