Flutter Animate a page route transition

Flutter provides many ways to add animations to your app, and one of the most common ways is to add animations to page route transitions. Page route transitions are the transitions that occur when the user navigates from one screen to another in your app. By animating these transitions, you can make your app feel more dynamic and engaging.

In this tutorial, we will learn how to animate a page route transition in Flutter. We will create a simple app that navigates from one screen to another, and we will add an animation to the transition.

Step 1: Create a new Flutter project

First, we need to create a new Flutter project. Open up Android Studio or Visual Studio Code and select “New Flutter Project”. Choose a project name and location, and then select “Flutter Application” as the project type. Click “Finish” to create the project.

Step 2: Create the screens

Next, we need to create the two screens that will be used in our app. For this tutorial, we will create two simple screens: a home screen and a details screen.

Create a new file called home_screen.dart and add the following code:

import 'package:flutter/material.dart';

class HomeScreen extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Home'),
      ),
      body: Center(
        child: ElevatedButton(
          child: Text('Go to Details'),
          onPressed: () {
            Navigator.push(
              context,
              MaterialPageRoute(builder: (context) => DetailsScreen()),
            );
          },
        ),
      ),
    );
  }
}

Create a new file called details_screen.dart and add the following code:

import 'package:flutter/material.dart';

class DetailsScreen extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Details'),
      ),
      body: Center(
        child: Text('Details Screen'),
      ),
    );
  }
}

In home_screen.dart, we create a simple Scaffold with an AppBar and a Center widget that contains a button. When the button is pressed, we navigate to the DetailsScreen. In details_screen.dart, we create a simple Scaffold with an AppBar and a Center widget that contains some text.

Step 3: Add the animation

Now that we have our screens, we can add the animation to the page route transition. We will use the PageTransition package to add the animation.

Open the pubspec.yaml file and add the following dependency:

dependencies:
  page_transition: ^2.0.4

Run flutter pub get to install the package.

In home_screen.dart, replace the onPressed function with the following code:

onPressed: () {
  Navigator.push(
    context,
    PageTransition(
      type: PageTransitionType.fade,
      child: DetailsScreen(),
    ),
  );
},

Here, we replace the default MaterialPageRoute with PageTransition. We set the type to PageTransitionType.fade to create a fade animation, and we set the child to DetailsScreen().

That’s it! Run the app, and you should see the fade animation when you navigate to the DetailsScreen.

Conclusion
Adding animations to page route transitions is a great way to make your app feel more dynamic and engaging. In this tutorial, we learned how to add a fade animation to a page route transition using the PageTransition package. With a little bit of creativity, you can use other animation

Here, we replace the default MaterialPageRoute with PageTransition. We set the type to PageTransitionType.fade to create a fade animation, and we set the child to DetailsScreen().

That’s it! Run the app, and you should see the fade animation when you navigate to the DetailsScreen.

Conclusion

Adding animations to page route transitions is a great way to make your app feel more dynamic and engaging. In this tutorial, we learned how to add a fade animation to a page route transition using the PageTransition package. With a little bit of creativity, you can use other animation