Comment naviguer vers une autre page sans animation Flutter

Question

J'ai une page de connexion, lorsque je me connecte pour accéder à la page principale de mon application, j'utilise Navigator.pushReplacement(context, new MaterialPageRoute(builder: (BuildContext context) => new Page1())); Mais elle a l'animation de diapositive, je veux la désactiver.

c'est mon format d'application Material

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return new MaterialApp(
      title: 'Flutter Demo',
      theme: new ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: new Login(title: 'Login'),
      routes: <String, WidgetBuilder>{
        '/screen3': (BuildContext context) => new Page1(),
      },
    );
  }
}

Answer 1

Vous pouvez utiliser PageRouteBuilder.

 Navigator.pushReplacement(
      context, 
      PageRouteBuilder(
        pageBuilder: (context, animation1, animation2) => Page1(),
    ),
);

Answer 2

Vous devez remplacer la méthode buildTransitions pour empêcher les animations.

import 'package:flutter/material.Dart';

class NoAnimationMaterialPageRoute<T> extends MaterialPageRoute<T> {
  NoAnimationMaterialPageRoute({
    @required WidgetBuilder builder,
    RouteSettings settings,
    bool maintainState = true,
    bool fullscreenDialog = false,
  }) : super(
            builder: builder,
            maintainState: maintainState,
            settings: settings,
            fullscreenDialog: fullscreenDialog);

  @override
  Widget buildTransitions(BuildContext context, Animation<double> animation,
      Animation<double> secondaryAnimation, Widget child) {
    return child;
  }
}

Answer 3

Ma solution est de définir l'itinéraire avec isInitialRoute:true. Cela empêche Flutter d'afficher une animation lorsque l'itinéraire est poussé.

Voici un exemple de travail et un enregistrement d'écran:

import 'package:flutter/cupertino.Dart'
    show
        CupertinoApp,
        CupertinoButton,
        CupertinoPageRoute,
        CupertinoPageScaffold;
import 'package:flutter/widgets.Dart'
    show
        BuildContext,
        Center,
        Column,
        Navigator,
        Route,
        RouteSettings,
        SafeArea,
        Spacer,
        Text,
        runApp,
        Widget;

Widget makeButton(BuildContext context, String routeName) =>
    new CupertinoButton(
      onPressed: () => Navigator.pushReplacementNamed(context, routeName),
      child: Text('Go to \'$routeName\''),
    );

Route generateRoute(RouteSettings settings) {
  switch (settings.name) {
    case 'not-animated':
      return new CupertinoPageRoute(
        settings: RouteSettings(name: settings.name, isInitialRoute: true),
        builder: (context) => CupertinoPageScaffold(
              child: SafeArea(
                child: Center(
                  child: Column(
                    children: [
                      Spacer(),
                      Text('This is \'not-animated\''),
                      makeButton(context, 'animated'),
                      Spacer(),
                    ],
                  ),
                ),
              ),
            ),
      );
    default:
      return null;
  }
}

void main() {
  runApp(
    CupertinoApp(
      onGenerateRoute: generateRoute,
      initialRoute: 'animated',
      routes: {
        'animated': (context) => CupertinoPageScaffold(
              child: SafeArea(
                child: Center(
                  child: Column(
                    children: [
                      Spacer(),
                      Text('This is \'animated\''),
                      makeButton(context, 'not-animated'),
                      Spacer(),
                    ],
                  ),
                ),
              ),
            ),
      },
    ),
  );
}

Answer 4

Vous devez essayer d'étendre MaterialPageRoute et remplacer buildTransitions comme suit:

class ExPageRoute<T> extends MaterialPageRoute<T> {

 @override
 Widget buildTransitions(BuildContext context, Animation<double> animation,
    Animation<double> secondaryAnimation, Widget child) {
    return child;
 }
}