我尝试使用导航器获取下一页，因为当我尝试按下登录按钮时，它不会将我带到下一页。我是flutter的新手。
class SignIn extends StatefulWidget {
const SignIn({super.key});
@override
State<SignIn> createState() => _SignInState();
}
class _SignInState extends State<SignIn> {
getanimatedscreen() {
MySplashScreen().getSplashScreen(HomePage());
}
@override
void initState() {
getanimatedscreen();
// TODO: implement initState
super.initState();
}
@override
Widget build(BuildContext context) {
return Scaffold(
body: SingleChildScrollView(
child: SafeArea(
top: true,
bottom: true,
child: Container(
width: MediaQuery.of(context).size.width,
height: MediaQuery.of(context).size.height,
decoration: BoxDecoration(
image: DecorationImage(
image: AssetImage('assets/images/background18.jpg'),
fit: BoxFit.cover,
),
),
//App Body Starts from here
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
//Using Gradient Text as Package in Pubsec
Container(
decoration: BoxDecoration(color: Colors.white),
child: GradientText("Sign In Page!",
style: TextStyle(fontSize: 50.0),
gradientType: GradientType.linear,
colors: const [
Color.fromARGB(255, 211, 24, 11),
Color.fromARGB(255, 3, 47, 83),
Color.fromARGB(255, 0, 0, 0),
]),
),
Column(
children: [
Center(
child: Padding(
padding: const EdgeInsets.all(25.0),
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
//Field for Email
TextFormField(
maxLines: 1,
textInputAction: TextInputAction.next,
textAlign: TextAlign.center,
style: TextStyle(
fontSize: 15.0,
color: Colors.blue[900],
fontStyle: FontStyle.italic),
decoration: InputDecoration(
enabled: true,
filled: true,
hintText: "Enter Email",
fillColor: Colors.white,
label: Text("Email"),
labelStyle: TextStyle(letterSpacing: 2.0),
hintTextDirection: TextDirection.ltr,
),
keyboardType: TextInputType.emailAddress,
),
SizedBox(
height: 10.0,
),
//Field for Password
TextFormField(
textInputAction: TextInputAction.next,
textAlign: TextAlign.center,
maxLines: 1,
style: TextStyle(
fontSize: 15.0,
color: Colors.blue[900],
fontStyle: FontStyle.italic),
obscureText: true,
decoration: InputDecoration(
filled: true,
hintText: "Enter Password",
fillColor: Colors.white,
label: Text(
"Password",
),
labelStyle: TextStyle(letterSpacing: 2.0),
hintTextDirection: TextDirection.ltr,
),
keyboardType: TextInputType.visiblePassword,
),
SizedBox(
height: 20.0,
),
Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: [
SizedBox(
height: 40.0,
width: 120.0,
child: ElevatedButton(
onPressed: () {
final snackBar = SnackBar(
content: Text(
"You've been Successfully Signed In"),
duration: Duration(seconds: 2),
action: SnackBarAction(
label: "",
onPressed: () {
// Action to Undo or SnackBar Action
}),
);
ScaffoldMessenger.of(context)
.showSnackBar(snackBar);
getanimatedscreen();
},
style: ElevatedButton.styleFrom(
backgroundColor: Colors.black,
shape: BeveledRectangleBorder(
borderRadius: BorderRadius.circular(
15), // <-- Radius
),
),
child: Text(
'Login',
style: TextStyle(
color: Colors.white,
fontSize: 20.0,
fontStyle: FontStyle.italic),
),
),
),
OutlinedButton(
//SnackBar
onPressed: () {
final snackBar = SnackBar(
content: Text(
"Please Enter Your Email in Next Page"),
duration: Duration(seconds: 2),
action: SnackBarAction(
label: "",
onPressed: () {
// Action to Undo or SnackBar Action
}),
);
ScaffoldMessenger.of(context)
.showSnackBar(snackBar);
},
style: ButtonStyle(
backgroundColor:
MaterialStateProperty.all(
Colors.white,
),
shape: MaterialStateProperty.all(
RoundedRectangleBorder(
borderRadius:
BorderRadius.circular(10.0),
))),
child: Text(
"Forgot Password ?",
style: TextStyle(color: Colors.black),
),
),
],
),
SizedBox(
height: 15.0,
),
SizedBox(
height: 40.0,
width: 150.0,
child: ElevatedButton(
onPressed: () {
Navigator.pushNamed(context, 'firstRoute');
final snackBar = SnackBar(
content:
Text("Your Sign Up Page is Loading"),
duration: Duration(seconds: 2),
action: SnackBarAction(
label: "",
onPressed: () {
// Action to Undo or SnackBar Action
}),
);
ScaffoldMessenger.of(context)
.showSnackBar(snackBar);
},
style: ElevatedButton.styleFrom(
backgroundColor: Colors.black,
shape: BeveledRectangleBorder(
borderRadius:
BorderRadius.circular(15), // <-- Radius
),
),
child: Text(
'Sign-Up',
style: TextStyle(
color: Colors.white,
fontSize: 20.0,
fontStyle: FontStyle.italic),
),
),
),
],
),
),
),
],
),
],
),
),
),
),
);
}
}`*'
` Here you can see in image I am just getting an message only
基本上我一次使用Snackbar，一些闪屏动画和Naviagtor功能。所以当我试图获取下一页时，它只向我显示snackbar消息。
1条答案
按热度按时间t98cgbkg1#
首先，你需要整理你的“onPressed”，创建一个可重用的snackbar。
现在将Pressed上登录按钮中的代码替换为
这里假设您已经在main.dart文件中设置了路线