Question

I am working on a project that extends the Map Activity class once.This project can only have this one activity.

I would like to implement the Canvas however since from my knowledge it depends on the Activity class, this has proven to be a road block.

My query is how can I bypass this issue? Is there a way I can actually draw on a canvas minus the Activity class? Any ideas would be gladly welcome. Thanks

Answer 1

You can get an instance of Canvas like this:

Paint p = new Paint(); 
...
Bitmap bitmap = Bitmap.createBitmap(100, 100, Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
canvas.drawArc(new RectF(10, 10, 90, 90), 0, 270, false, p);

I use this snippet in a BroadcastReceiver that is not an Activity and you can see that I draw on it.