/TypeScript/Flutter rotate animation icon on press

Flutter rotate animation icon on press

@override
  void initState() {
    super.initState();

    _controller = AnimationController(
      vsync: this,
      duration: Duration(milliseconds: 300),
      upperBound: 0.5,
    );
  }
  
  @override
  void dispose() {
    super.dispose();
    _controller.dispose();
  }
  
  RotationTransition(
              turns: Tween(begin: 0.0, end: 0.5).animate(_controller),
              child: IconButton(
                icon: Icon(Icons.expand_less),
                onPressed: () {
                  setState(() {
                    if (_expanded) {
                      _controller..reverse(from: 0.5);
                    } else {
                      _controller..forward(from: 0.0);
                    }
                    _expanded = !_expanded;
                  });
                },
              ),
            )

Source: stackoverflow.com

Similar codes

0 vote206 views1 answer
Peer of typescript@>=2.8.0
TypeScript
5 votes243 views4 answers
Wget
TypeScript
0 vote230 views1 answer
Testing types
TypeScript
0 vote215 views1 answer
Add multiple constraints in create table sql
TypeScript
12 votes238 views1 answer
Argument of type 'string | null' is not assignable to parameter of type 'string'. Type 'null' is not assignable to type 'string'
TypeScript
0 vote238 views1 answer
What is the reason we are using properties file
TypeScript
0 vote209 views1 answer
Testing techniques
TypeScript
1 vote216 views1 answer
Promise.all does not wait
TypeScript
0 vote221 views1 answer
Conditional type typescript
TypeScript
0 vote217 views1 answer
Google fonts icons size classes
TypeScript