AnimatedSwitcher (Flutter Widget of the Week)

What people said

Recommends drogel · 2019-08 · Stack Overflow · on “How to have fade in and fade out between multi widgets”

Maybe AnimatedSwitcher is what you are looking for, it adds an implicit animation to its child, so that whenever you call setState() to change its child, it automatically starts a fade-in/fade-out animation between them. Check out this video from the Widget of the Week series: AnimatedSwitcher from Widget of the Week [this video] Another possibility is AnimatedOpacity , that can achieve a similar behaviour by changing its child's opacity. Here is a reference to the documentation on AnimatedOpacity widget: AnimatedOpacity from Flutter dev documentation [LINK]

Recommends Tipu Sultan · 2020-08 · Stack Overflow · on “AnimatedSwitcher not animating from method?”

try calling SetState when state is change and if your widget1 and widget2 are same type then give them a key so that flutter can identify them separately. You can follow this video [this video] for more info.

Recommends bluenile · 2020-12 · Stack Overflow · on “Animated Switcher in combination with case conditioned Streambuilder”

The issue might be that you are not setting a key. If the new child widget is of the same type as the old widget type then AnimatedSwitcher will NOT animate between them since as as far as the framework is concerned, they are the same widget. Set a unique ValueKey on each child child widget that you wish to animate. Please refer to Flutter Docs for AnimatedSwitcher [LINK] and check out the AnimatedSwitcher Widget of the Week [this video] video by Flutter Team. If the "new" child is the same widget type and key as the "old" child, but with different parameters, then AnimatedSwitcher will not do a transition between them, since as far as the framework is concerned, they are the same widget and the

Recommends AAA · 2021-04 · Stack Overflow · on “How to AnimatedCrossFade multiple widget with the pageView in flutter?”

You can use a widget called AnimatedSwitcher to do the trick. You can find it in details on YouTube in the Flutter Widget of the Week series here [this video]

Recommends Arash Mohammadi · 2021-04 · Stack Overflow · on “Flutter IndexedStack alternative”

You can use AnimatedSwitcher too : [this video] AnimatedSwitcher is similar to IndexedStack so IDK if that will help but try it first. Or you just use inline if statement to achieve what you want. like this: bool _isLoading = true; ... _isLoading ? LoadingWidget : WebView if it is loading, LoadingWidget will be shown, otherwise the WebView will be shown. And the debug version will always be slow. Try it on release version with: flutter run --release

Recommends towhid · 2021-09 · Stack Overflow · on “How to make an animated spinbox?”

AnimatedSwitcher [this video] can be a good option for this type of widget. By default it can create pretty smooth looking simple animations but for this scenario, you need to customize the transition to match with your reference. You can learn more about it from this Medium Article [LINK]

Recommends Sina Seirafi · 2023-01 · Stack Overflow · on “Reverse widget animation on destroy”

If the widget is being replaced by another, use AnimatedSwitcher ( Widget of the week video [this video] ) If you want to animate the widget upon navigation, read here [LINK] .

Cites Andrew · 2019-08 · Stack Overflow · on “I want to avoid to recreate the AppBar and Drawer when I change the tool that I am using”

Within a scaffold, set the body to be an AnimatedSwitcher, and have the child be a variable. Any time you wish to change the satellite view out for another widget, call SetState and change the child variable. class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { return Scaffold( appBar: MyAppBar(), //This will never change body: DynamicContainer(), ); } ChangeWidget() { myChangingWidget = Container(); } } class DynamicContainer extends StatefulWidget { DynamicContainer({Key key}) : super(key: key); _DynamicContainerState createState() => _DynamicContainerState(controller: controller); } class _DynamicContainerState extends State<DynamicContainer> { Widget _myAn

Cites Baker · 2021-01 · Stack Overflow · on “Animating between provider stream changes”

Animation An AnimatedSwitcher widget (included in SDK, not related to Provider) might suffice to animate between your two widgets showing connected / disconnected states. ( AnimatedContainer [LINK] might work as well if you're just switching a color or something else in the constructor argument list of Container.) A key is needed for the child of AnimatedSwitcher [this video] when the children are of the same class, but differ internally. If they're completely different Types, Flutter knows to animate between the two, but not if they're the same Type. (Has to do with how Flutter analyzes the widget tree looking for needed rebuilds.) Rebuild Only Affected Widgets In the example below, the YellowWi

Cites MaNDOOoo · 2021-07 · Stack Overflow · on “Animate between a selected TextButton”

You can make the transition animation by using AnimatedSwitcher . If you want to get more info about the widget, see AnimatedSwitcher: widget of the week [this video] . Here is a complete function that is inner of generateMonths() . List<Widget> generateRowOfMonths(from, to) { List<Widget> months = []; for (int i = from; i <= to; i++) { final backgroundColor = _selectedMonth == i ? Theme.of(context).accentColor : Colors.transparent; months.add( AnimatedSwitcher( duration: kThemeChangeDuration, transitionBuilder: (Widget child, Animation<double> animation) { return FadeTransition( child: child, opacity: animation, ); }, child: TextButton( key: ValueKey(backgroundColor), onPressed: () { setState(()