It sustains a "loop" of drawing all by itself...
2011/7/3 Alex Coutinho <[email protected]>
> 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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>
>
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