In Flutter How To Make PageView Scroll Faster? The Animation Seems To Be Slow And The Inner ListView Cant Response My Vertical Gesture

you can see the details in video I don't know how to work out this problem.Compared with Android Native ViewPager,the animation of the PageView in Flutter seems to be slower and us

Solution 1:

You can define your own instance of PageController and use its methods nextPage() and previousPage(). They have "duration" argument that controls how fast the page view scrolls.

final PageController controller = PageController(
    viewportFraction: 0.9,
  );

  void nextPage() async {
    await controller.nextPage(
      duration: Duration(milliseconds: 200),
      curve: Curves.easeOut,
    );
  }

  void prevPage() async {
    await controller.previousPage(
      duration: Duration(milliseconds: 200),
      curve: Curves.easeOut,
    );
  }

Then apply this controller to your Page View:

return PageView.builder(
      physics: NeverScrollableScrollPhysics(),
      controller: controller,
      ...
    );

The full code of main.dart:

import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      theme: ThemeData(
        primarySwatch: Colors.blue,
        visualDensity: VisualDensity.adaptivePlatformDensity,
      ),
      home: MyPageViewExample(),
    );
  }
}

class MyPageViewExample extends StatelessWidget {
  MyPageViewExample({Key key}) : super(key: key);

  final PageController controller = PageController(
    viewportFraction: 0.9,
  );

  void nextPage() async {
    await controller.nextPage(
      duration: Duration(milliseconds: 200),
      curve: Curves.easeOut,
    );
  }

  void prevPage() async {
    await controller.previousPage(
      duration: Duration(milliseconds: 200),
      curve: Curves.easeOut,
    );
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: Stack(
        children: <Widget>[
          Container(
            color: Colors.grey[100],
          ),
          Padding(
            padding: EdgeInsets.only(top: 20.0 + MediaQuery.of(context).padding.top, bottom: 20.0),
            child: _buildCarousel(context),
          ),
        ],
      ),
    );
  }

  Widget _buildCarousel(BuildContext context) {
    return PageView.builder(
      physics: NeverScrollableScrollPhysics(),
      controller: controller,
      scrollDirection: Axis.horizontal,
      itemBuilder: (BuildContext context, int itemIndex) {
        return _buildItem(context, itemIndex);
      },
      itemCount: 5,
    );
  }

  Widget _buildItem(BuildContext context, int itemIndex) {
    return Padding(
      padding: EdgeInsets.only(left: 4.0, top: 10.0, right: 4.0, bottom: 10.0),
      child: GestureDetector(
        onPanUpdate: (details) {
          if (details.delta.dx < 0) {
            nextPage();
          }
          if (details.delta.dx > 0) {
            prevPage();
          }
        },
        child: Container(
          decoration: BoxDecoration(
            color: Colors.white,
            borderRadius: BorderRadius.all(Radius.circular(35.0)),
          ),
          child: Center(
            child: Text(
              'Item ' + (itemIndex + 1).toString(),
            ),
          ),
        ),
      ),
    );
  }
}

Solution 2:

You can control the general physics of the scroll animation.

PageView(
  physics: CustomPageViewScrollPhysics(),
            

Control the scroll behavior:

class CustomPageViewScrollPhysics extends ScrollPhysics {
  const CustomPageViewScrollPhysics({ScrollPhysics? parent})
      : super(parent: parent);

  @override
  CustomPageViewScrollPhysics applyTo(ScrollPhysics? ancestor) {
    return CustomPageViewScrollPhysics(parent: buildParent(ancestor)!);
  }

  @override
  SpringDescription get spring => const SpringDescription(
        mass: 50,
        stiffness: 100,
        damping: 0.8,
      );
}

You should also be able to calculate the duration with mass, stiffness, damping, but I believe having those options is even better suited for your problem. Source