There are one example to do it:
RaisedButton(
color: Colors.blueAccent,
onPressed: () {
sendData(); //fun1
signupPage(context); //fun2
},
child:
Text("Signup"),
)
This is how I add a SnackBar into my code:
Padding(
padding: const EdgeInsets.all(8.0),
child: Center(
child: ElevatedButton(
onPressed: () {
const postSuccessfullySnackBar = SnackBar(
content: Text('Your item posted! 0v0'),
);
_addNewItemInfoEntry();
ScaffoldMessenger.of(context)
.showSnackBar(postSuccessfullySnackBar);
},
child: const Text('Post Item'))),
)