You should use the method invalidate() inside a view:
@Override
protected void onDraw (Canvas canvas)
{
invalidate();
// Do all your drawings here
invalidate();
}
First, it tells android that the whole screen should be redrawn, afterwards
it tells android that the screen should be redrawn again with the drawings
you did.
2011/7/3 razor <[email protected]>
> Hi.
>
> I'm quite new to android and i want to make some animation (simple
> game later) like i did on windows (all programatically).
> So I have questions what classes should be responsible for.
>
> Activity
> It's a base class for whole logic like updating variables (computing
> move etc.)
> Should I create a new Thread on onCreate and run it onResume ? (I need
> continuous computing for moving objects)
>
> View
> Only for drawing animation
> onDraw method for clearing Canvas (how to do this quickly? drawRect is
> efficent ? ) and drawing objects.
> Should I invalidate that view or just call onDraw 30 times per second?
>
> Regards
> razor
>
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