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怎么做到现在像微信聊天那样，有新消息，有个新消息出现的过度效果？
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## Steps to Reproduce
1. Execute `flutter run` on the code sample
2. Compare the width of the colored boxes
**Expected results:**
The red box (AnimatedList) should not be visible
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**Describe the bug**
I've faced a situation in which I don't know if that's how it was supposed to happen according to the Riverpod's laws, or if it's a Riverpod bug.
I have already solved the situ…
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I was trying to implement AnimatedList with elements taken from Moor database, where element id was autoincrementing. So when I delete an element I have to delete it from AnimatedList and provide an e…
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There is no AnimatedGridWidget. I have wanted to create grid like iOS with computing changed with animation. But I haven't found any sample or something like AnimatedGrid.
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| M2 | M3 |
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We should update the `TabBar` widget to support this Material 3 look and [tokens](https://github.com/flutter/flutter/blob/master/dev/to…
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The big advantage of implementing multiple views with a single widget tree and the OverlayPortal proposal is that overlays/views have access to the surrounding inherited widgets at their anchor point …
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## Steps to Reproduce
Using "FirebaseAnimatedList" to update from a remote DB.
It will trigger item insertion/removal as the remote DB changes.
When the FirbaseAnimatedList is configured with:
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It's a bit late to the party, since NNBD migration was done a long time ago.
But it seems that the migration process broke ListView.builder's itemBuilder ability to return null;
## Steps to R…
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I have a customMessageBuilder, that's used to build video messages. The problem is that when I add a new message, the entire page/chat is being rebuilt, therefore my custom video player messages are b…