I'm receiving this error every time I try to open the dynamic link
But the error is only on IOS, in Android everything works perfectly.
This is how it navigates to needed page from the dynamic link:
Navigator.push(
context,
MaterialPageRoute(builder: (context) => FlashcardDetailedPage(
flashcard: flashcard,
deck: deck,
toDownload: true,
)),
);
How to fix this?
Related
Using the mockingjay Flutter package, how do I verify in a widget test that an alert dialog has been displayed after e.g. tapping a button? The alert dialog is displayed using the showDialog function.
This is very similar to verifying page navigation behaviour, the thing that caught me out was the showDialog function must have the parameter useRootNavigator set to false, as documented in the example project. Without it the test will fail to detect that the alert dialog was displayed.
showDialog(
context: context,
useRootNavigator: false, // By default this is true, which won't work with Mockingjay
routeSettings: RouteSettings(name: 'verify_checkout_failure'),
builder: (context) {
return AlertDialog(title: Text('Checkout failed'));
});
Then in your test:
await tester.tap(find.byType(PlaceOrderButton));
verify(
() => mockNavigator.push(
any(
that: isRoute<void>(
whereName: equals('verify_checkout_failure'),
),
),
),
);
each time i use a plugin to move to the next page on iOS the swipe back will not work like
Navigator.push(
context,
Transition(
child: Bio(),
transitionEffect: TransitionEffect.BOTTOM_TO_TOP),
);
i have use like 5 plugin now swipe back is not working
but if i use this
Navigator.pop(context);
Navigator.push(
context,
MaterialPageRoute(
builder: (ctx) => Actitvities(),
),
);
the swipe back works....
but i want to use transition for the page route
in my case.
i was using a plugin and the plugin is using
WillPopScope (
onWillPop: () async {
},
so i fork the plugin and remove the willpopscope.
then i add the fork plugin like this to my pubspeck
kittens:
git:
url: git://github.com/munificent/kittens.git
ref: some-branch
full example here
I have seen many examples but none of them providing me a way to remove the entire back stack(including the home page) while navigating to the next page.
Eg: I have a few login pages once a user successfully entered login credentials user move to the home screen, so here I want to remove all previous screen which appeared till now, How can I do that?
Currently using code:
Navigator.of(context).pushNamedAndRemoveUntil(
HomeScreen.route_name, ModalRoute.withName('/'));
To remove all the routes below the pushed route, use a RoutePredicate that always returns false (e.g. (Route route) => false).
So for your code to work as expected, remove ModalRoute.withName('/') and give a route predicate which returns false. So it should be
Navigator.of(context).pushNamedAndRemoveUntil(
HomeScreen.route_name, (Route<dynamic> route)=>false);
For reference see the official documentation
Try this out. This code push the given route onto the navigator and then remove all the previous routes even HomeScreen.
Navigator.pushAndRemoveUntil(
context,
MaterialPageRoute(
builder: (BuildContext context) => HomeScreen(),
),
(route) => false,
);
Note: This is tested on my project. So I hope it will 100% work
Try this way
Navigator.pushAndRemoveUntil(
context,
MaterialPageRoute(builder: (dialogContex) => HomePageScreen()),
ModalRoute.withName("/HomePageScreen"));
or with Getx:
Get.offNamedUntil('home', (route) => false);
I have created NavigationDrawer in flutter before navigation drawer screen appear to user I have 3 screen before it
splash screen
intro slider
Login screen
NavigationDrawer
I want to close my app when user press back button in android phone from navigationdrawer screen but it will shows black screen.
I have called below called for navigation from login to drawer
Navigator.pushAndRemoveUntil(
context,
MaterialPageRoute(
builder: (BuildContext context) => NavigationDrawerDemo(),
),
ModalRoute.withName('/LoginFieldForm'));
I called loginfieldform with
Navigator.push(context,
new MaterialPageRoute(builder: (context) =>new LoginFieldForm()));
I think you have pushed the "LoginFieldForm" with the Navigator.push method and trying to remove it using the named routes.
For Ex :
// Puching a route with Navigator.push method
Navigator.push(
context,
MaterialPageRoute(builder: (context) => LoginFieldForm()),
);
// Removing using the named routes.
Navigator.pushAndRemoveUntil(
context,
MaterialPageRoute(
builder: (BuildContext context) => NavigationDrawerDemo(),
),
ModalRoute.withName('/LoginFieldForm'));
You can only use ModalRoute.withName() if you have added the route using named routes.
Your route probably has not a name set. If so, popping until the name is matched will result in popping everything, since the name you're looking for will never be found.
When you push LoginFieldForm ensure to pass a settings to the Route.
When pushing, you can do this:
MaterialPageRoute(
settings: RouteSettings(name: "routeName"),
builder: (context) => YourWidget(),
)
If you're within onGenerateRoute you already have settings passed as an argument to the onGenerateRoute function. In that case, just forward them to the MaterialPageRoute:
MaterialPageRoute(
settings: settings, //these settings are arguments from the function
builder: (context) => YourWidget(),
)
To close the app you may use exit(0) of dart:io on back press.exit(0) help out to Exit the Dart VM process immediately with the given exit code.
This does not wait for any asynchronous operations to terminate. You may find more information about exit(0) here
Or
SystemChannels.platform.invokeMethod('SystemNavigator.pop');
For more detail you may check here
Use-case: pushNamedAndRemoveUntil
Navigator.of(context).pushNamedAndRemoveUntil('/LoginFieldForm',
(Route<dynamic> route) => false);
I'm implementing an authentication flow in my Flutter app.
After a sign in attempt, the CheckAuth (which checks whether a user is signed in or not and then opens home screen or sign up screen accordingly) is opened with this code:
void _signIn() async {
await _auth
.signInWithEmailAndPassword(
email: _userEmail.trim(), password: _userPassword.trim())
.then((task) {
// go to home screen
if (task.getIdToken() != null) {
setState(() {
Navigator.pushReplacement(
context,
new MaterialPageRoute(
builder: (BuildContext context) => new CheckAuth()));
});
} else {
print("Authentication failed");
}
});
}
Problem: I can successfully sign in to the app, but if I tap back button after I sign in, it goes back to the sign in screen (while I expect it to exit from the app).
Question: How to move from one screen to another in Flutter without the way back?
Do I need to somehow delete the navigator history? Or don't use navigator at all? I tried Navigator.replace method, but it didn't seem to work.
You need to use Navigator.pushReplacement when leaving the auth screen too. Not just when redirecting to login page.
You can use the pushAndRemoveUntil method:
Push the given route onto the navigator that most tightly encloses the given context, and then remove all the previous routes until the predicate returns true. To remove all the routes below the pushed route, use a [RoutePredicate] that always returns false (e.g. (Route<dynamic> route) => false).
Navigator.pushAndRemoveUntil(
context,
MaterialPageRoute(builder: (context) => MainPage()),
(Route<dynamic> route) => false,
);
You need to use
Navigator
.of(_context)
.pushReplacement(new MaterialPageRoute(builder: (BuildContext context) => page));
Where _context is object of BuildContext
And page is which page you directed to.
I think you probably have already solved this. But you can set "automaticallyLeadingImplied: false" in the AppBar of the Scaffold you are navigating to.
Just simply add the below code:
Navigator.of(context).pushNamedAndRemoveUntil('/routeName', (route) => false);
We can use routes for the same
Like:
routes: {
LoginScreen.route_name: (_) => LoginScreen(),
.....
},
And use below code whenever you want to push and remove the backstack
Navigator.of(context).pushReplacementNamed(LoginScreen.route_name);
Note: Define static String inside widget LoginScreen
I have resolved this by popping from current page and showing new page:
Navigator.pop(context);
Navigator.of(context).pushReplacement(MaterialPageRoute(builder: (context) => newPage));
Here is the solution -
Use pushAndRemoveUntil instead of pushReplacement
Also, can be use maintainState: true
For set root page
Navigator.pushAndRemoveUntil(
context,
MaterialPageRoute(
builder: (context) => pageName, maintainState: true),
(Route<dynamic> route) => false);
For Push Page one page to another
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => pageName,
maintainState: false),)
**If you want to refresh always while appearing page then use: **
maintainState: false
For anyone wondering there is a new argument that needs to be returned false Navigator.of(context).pushNamedAndRemoveUntil('/', (route) => false);
Navigator.of(context, rootNavigator: true).pop();
Navigator.pushNamed(context, '/');
It was not working for me because I was using the home proptery rather than initialRoute on the MaterialApp.
This is a link where there's the folloing warning which helped me to spot the error: https://docs.flutter.dev/cookbook/navigation/named-routes#2-define-the-routes
Warning: When using initialRoute, don’t define a home property.
if you are working with Getx state managemaent then you can try this
Get.of(()=> NewPage());