Well, the "simple" is my opinion, of course, fading out 50-100 cells
quickly, doesn't feels like OpenGL to me.
Besides I have a sliding menu on the side (like Facebook app), and my
experiences with OpenGL, is that it will not slide with the rest of the
content. Which makes sense according to some docs I read that the OpenGL
view is a "hole" in the screen.
Am Montag, 18. März 2013 18:55:28 UTC+1 schrieb user123:
>
> For a simple animation like this? That's a total overkill...
>
>
> Am Montag, 18. März 2013 17:12:52 UTC+1 schrieb bob:
>>
>> Maybe use OpenGL?
>>
>>
>>
>> On Monday, March 18, 2013 8:53:18 AM UTC-5, user123 wrote:
>>>
>>> I'm trying to make one of these animations where an image "fades in"
>>> with tiles. (Note: I need this to work from Api 8)
>>>
>>> To do that, I created a black grid and put it on top of the image and
>>> using a handler, make each cell dissapear.
>>>
>>> It works but the animation takes a bit more than 1 second, even when I
>>> post to the handler without any delay. This looks laggy and strange. The
>>> effect has to be very quick.
>>>
>>> I tried many things - using programmatically generated linearlayout with
>>> rows instead of grid, using fade out animation, using no animation at all,
>>> toggling visibility with View.GONE, or View.INVISIBLE, or just setting the
>>> background color to 0x00000000. Nothing helps, I can't make the animation
>>> quicker.
>>>
>>> I tested in 2.3 smartphone, in 4.2 smartphone and 4.2 tablet, all look
>>> the same. Well, in the 4.2 devices, the animation sometimes doesn't show at
>>> all - like it was executed already. But when it's visible, it's slow.
>>>
>>> Any advice on this? Or do I have to use a completly different approach?
>>> Is there a library to do this kind of effects, maybe?
>>>
>>> Here is my relevant code:
>>>
>>> List<Integer> done = new ArrayList<Integer>();
>>>
>>> private Handler handler = new Handler();
>>> private Runnable fadeInRunnable = new Runnable() {
>>> @Override
>>> public void run() {
>>> if (!done.isEmpty()) {
>>> // int index = (int)(Math.random() * done.size());
>>> int index = 0;
>>>
>>> int itemIndex = done.get(index);
>>> int rowIndex = (int)Math.floor(itemIndex / ROWS);
>>>
>>> ViewGroup row =
>>> (ViewGroup)imageMask.getChildAt(rowIndex);
>>>
>>> View child = row.getChildAt(itemIndex - (rowIndex *
>>> ROWS));
>>>
>>> //
>>> child.startAnimation(AnimationUtils.loadAnimation(getActivity(),
>>> R.anim.fade_out_short));
>>> // child.startAnimation(anim);
>>> child.setBackgroundColor(0x00000000);
>>> // child.setVisibility(View.INVISIBLE);
>>>
>>> done.remove(index);
>>>
>>> handler.post(this);
>>> // handler.postDelayed(this, 1);
>>> }
>>> }
>>> };
>>>
>>>
>>> Thanks in advance,
>>> Ivan
>>>
>>
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