onPressed: () => {}),

30
30

AnimatedOpacity(

31

duration: const Duration(seconds: 3),

31

+
                    duration: const Duration(seconds: 2),

32
32

opacity: opacity,

33
33

child: Column(

34
34

children: const [

4. Set up a trigger for the animation, and choose an end value

{opacity4 → opacity5}/lib/main.dart

@@ -22,11 +22,14 @@

22
22

return Column(children: <Widget>[

23
23

Image.network(owlUrl),