Basic Routing with Flutter Navigator 2.0 Example

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(No Transcript)
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Did you know? The Flutter team launched
Navigator 2.0 to manage complicated routing. It
is because Navigator 1.0 was only capable of
adding and deleting pages from stacks. This made
it difficult to handle deep linking or URI
parsing for Flutter Web. But can Navigator 2.0
really solve this problem? For that, we need to
understand Flutter Navigator 2.0 in greater
detail. It will also make the process of Flutter
app development simpler for you in the
future. Overview of Flutter Navigator! Navigator
1.0 is an imperative API. In contrast, flutters
Navigator 2.0 operates mostly in an imperative
manner. Yet, it has a declarative API. In the
case of Navigator 1.0, there was a stack through
which one could push or pop pages. It was pretty
and convenient. But it offered these benefits
until the application had simple routing. Simple
Routing consisted of the use of fewer screens and
used on the web.
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The issue became grave when users had to create
complicated apps. Implementation of deep
linking, going straight to a product page from
alerts, handling O.S. events, and parsing URIs
for the handling of the Flutter web back button
follow. Why should you choose Flutter Navigator
2.0? Then Navigator 2.0 is released. It is of a
descriptive nature, giving you greater control
over the Navigation stack. Users can manipulate
the stack easily. However, it depends entirely on
the state of our app and response to back button
events sent by the OS. Further, it supplies a
list of pages and does URI parsing utilizing
routeInformationParser and provider. You can use
this to not only PUSH and POP from the top but
from any place you wished to. Flutter Navigator
2.0 Example Navigator 2.0 introduces additional
classes. It makes it easier to implement the app
screen as a byproduct of the app state. It also
enables the parsing of routes from URLs for
flutter web. According to Flutter app developers
in Denver, Navigator 2.0 offers a new declarative
API architecture
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• Pages
• It is for the existing navigator. The pages which
  are employed to set the history stack are
  immutable and must be added to the navigation
  history stack as listed there.
• Router
• It is a brand-new widget that envelops the
  navigator and customizes the current list of
  sites according to the app state. Additionally,
  it has the ability to listen to operating system
  events and adjust the navigation accordingly.
• We will basically create a Flutter application
  and learn how to add pages and routers using
  Flutter Navigator 2.0 as our example.
• The following list of four classes includes
• RouterInformationParser
• RouterDelegate
• RouterInformationProvider
• BackButtonDispatcher

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• These can be further worked on based on our
  example
• Anime Characters screen It displays a list of
  all the characters from anime.
• Characters Details screen When a specific
  character is chosen, a new screen that shows the
  anime to which that character belongs is added
  onto the stack.
• Anime Char Model This class serves as merely a
  model for anime characters, complete with
  function Object () native code , name, and
  anime.
• App class This straightforward class manages all
  navigation and app state monitoring while
  managing Material widgets.
• Lets now configure our pages inside the app
  state. Start by creating a variable to track the
  application state after that, and then display
  the screen in accordance with the state.
• Next, we have configured our pages so that
  MaterialPage is passed as a child for each page
  during custom routing. Further, we made a
  customRoute.dart for the Character details screen
  as an example. It demonstrates that we can also
  customize pages to suit our needs.
• onPopPage This function is used to make sure
  that nothing unexpected happens when POP is being
  done. A POP operation returns true if it is
  successful and false otherwise.

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• Listltgt _selectedChar It is used to track the
  applications status in order to display the
  character details screen.
• animeChars It contains a list of anime
  characters that is supplied to the Anime
  characters screen.
• Its quite interesting to know how to integrate
  Navigator 2.0 into our Flutter application. We
  have spoken about Navigator 2.0s fundamental
  implementation up to this point. All the classes
  connection makes up the remaining code. You are
  welcome to play around with the source code by
  cloning the full application. You can also check
  out the Google DevFest celebrating the release of
  Navigator 2.0.
• We have just recently begun to handle routes
  declaratively that are depending on app states
  and not something we direct the app to perform up
  till this point. What is now basically left is
  the flutter web portion, which parses the URL to
  go directly to certain pages and vice versa.
• Wrapping Up!

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This is what exactly you should know about
Flutter Navigator 2.0 and also how to use it in
your project to build basic routing. We
anticipate that the lesson will assist you in
beginning the process of adding navigation to the
application. You can also hire Flutter app
developers in USA if youre willing to clone a
project or learn more about it. Article Resource
- https//zimblecode.com/basic-routing-with-flutte
r-navigator-2-0-example/