Use AnimatedContainer for card_collection.dart.

Use AnimatedContainer for card_collection.dart.

R=abarth@chromium.org

Committed: https://chromium.googlesource.com/external/mojo/+/c0b232e9bf425408473cd02cbe202dcd27879a91

[Matt Perry, 2015-07-09 23:16:15]

mpcomplete@chromium.org changed reviewers:
+ hansmuller@chromium.org

[abarth-chromium, 2015-07-09 23:20:13]

abarth@chromium.org changed reviewers:
+ abarth@chromium.org

[abarth-chromium, 2015-07-09 23:20:14]

lgtm

https://codereview.chromium.org/1231933006/diff/1/sky/sdk/example/widgets/car...
File sky/sdk/example/widgets/card_collection.dart (right):

https://codereview.chromium.org/1231933006/diff/1/sky/sdk/example/widgets/car...
sky/sdk/example/widgets/card_collection.dart:132: card = new Opacity(child:
card, opacity: 1.0);
It's lame that we need to do this by hand.  Maybe _activeCardTransform should
have a buildInitial() that builds the widget structure but with the |begin|
values of all the variables?

[Matt Perry, 2015-07-09 23:25:50]

https://codereview.chromium.org/1231933006/diff/1/sky/sdk/example/widgets/car...
File sky/sdk/example/widgets/card_collection.dart (right):

https://codereview.chromium.org/1231933006/diff/1/sky/sdk/example/widgets/car...
sky/sdk/example/widgets/card_collection.dart:132: card = new Opacity(child:
card, opacity: 1.0);
On 2015/07/09 23:20:13, abarth-chromium wrote:
> It's lame that we need to do this by hand.  Maybe _activeCardTransform should
> have a buildInitial() that builds the widget structure but with the |begin|
> values of all the variables?

This is just a hacky workaround until https://github.com/domokit/mojo/issues/312
is fixed. I'm not sure we need a buildInitial for anything else yet.

[Matt Perry, 2015-07-09 23:31:38]

Committed patchset #1 (id:1) manually as
c0b232e9bf425408473cd02cbe202dcd27879a91 (presubmit successful).