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I have created NavigationDrawer in flutter before navigation drawer screen appear to user I have 3 screen before it

  1. splash screen
  2. intro slider
  3. Login screen
  4. 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

                  builder: (BuildContext context) => NavigationDrawerDemo(),

I called loginfieldform with

    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

        MaterialPageRoute(builder: (context) => LoginFieldForm()),

// Removing using the named routes.

                  builder: (BuildContext context) => NavigationDrawerDemo(),

You can only use ModalRoute.withName() if you have added the route using named routes.

pop'ing and pushing the first route leads to black screen when back , There shouldn't be a hardware back button on iOS, so this would Flutter should show / instead of a black screen on iOS if you pop the last� Flutter back-pressed shows black screen. Hot Network Questions Two brothers war against one another: Magic vs. Technology cat6 cable only getting 100mbps over larger

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:

    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:

    settings: settings, //these settings are arguments from the function
    builder: (context) => YourWidget(),

Android back button takes you to a black screen (should quit the app , flutter create foo cd foo flutter run Click the back button. You get this: Not sure if this is related to #8163 ? @Hixie. Now it's all 2019, so how do we fix this, urgently? FYI see the comment above about this issue being closed in favour of #11490.Thumbs up and comments on this issue probably aren't being followed by the flutter team, so won't help - go to issue #11490 instead and add a thumbs up to the first post, the more reactions there are the higher up an issue gets prioritised by the flutter devs.

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



For more detail you may check here

Flutter Navigator.pop(context) returning a black screen, As the history of your route transitions is stored in a first Navigator, this one can't pop back – it has empty route history. Hence, the black screen. Long story short, to fix this, just use Scaffold as a top widget instead of MaterialApp in all nested screens. How can catch the back pressed event in Flutter? You can handle a back pressed event in the Flutter with help of WillPopScope widget. You have to use it to create a screen. Just requirement of this widget. We have to make it root widget of the screen. Once you make it root widget of the screen. You will find an onWillPop method. Here, you can

Use-case: pushNamedAndRemoveUntil

(Route<dynamic> route) => false);

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Navigate to a new screen and back, Google is committed to advancing racial equity for Black communities. See how. For example, an app might have a screen that displays products. Tapping the button on the first route navigates to the second route. child: Text('Go back!') � Android tutorial about implementing app slider menu using navigation drawer. An example of google + navigation drawer is explained with a customized list view with icon, title and a notification counter.

  • can you show the code that pushes LoginFieldForm please? I might know what's wrong
  • @magicleon94 updated question
  • That's what I thought. Check my answer, it should be what you need
  • I just gave you a hint. It was not a code to implement. Still paste your methods and error logs in your question.
  • can you please brief it little more