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Description:

flutter swiper plus

中文说明

flutter_swiper_plus #
The best swiper for flutter , with multiple layouts, infinite loop. Compatible with Android & iOS.

If you need run on flutter that version before 2.0, see：flutter_swiper

Show Case #
Horizontal #

Vertical #

Horizontal & Vertical in part #

Imitating BiliBili's (with text) #

flutter_swiper_plus👇：

BiliBili's👇：

Imitate mobile page #

Different Transformers #

You can override 'PageTransformer' to customize the animation ，seebuildin_transformers.dart
The existing animation is shown below 👇：

you can run main.dartin example to see the actual effect.

Different layouts #

This part is currently controlled by enum, It can be previewed in the Custom All of the example project
The following is a demonstration 👇：

you can run main.dartin example to see the actual effect.

Very easy to create you own custom animation, like this👇:

new Swiper(
layout: SwiperLayout.CUSTOM,
customLayoutOption: new CustomLayoutOption(
startIndex: -1,
stateCount: 3
).addRotate([
-45.0/180,
0.0,
45.0/180
]).addTranslate([
new Offset(-370.0, -40.0),
new Offset(0.0, 0.0),
new Offset(370.0, -40.0)
]),
itemWidth: 300.0,
itemHeight: 200.0,
itemBuilder: (context, index) {
return new Container(
color: Colors.grey,
child: new Center(
child: new Text("$index"),
),
);
},
itemCount: 10)

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The CustomLayoutOption is designed to describe animations. It is very easy to specify every state of items in Swiper, like this👇：

new CustomLayoutOption(
startIndex: -1, /// 开始下标
stateCount: 3 /// 下面的数组长度
).addRotate([ // 每个元素的角度
-45.0/180,
0.0,
45.0/180
]).addTranslate([ /// 每个元素的偏移
new Offset(-370.0, -40.0),
new Offset(0.0, 0.0),
new Offset(370.0, -40.0)
])

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change log #

See：CHANGELOG.md

quick start #

Installation
Simple_Demo
Constructor

Basic
Pagination
Control buttons
Controller
Autoplay

installation #
in pubspec.yaml, write this👇：
dependencies:
flutter_swiper_plus : 2.0.4
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then run this👇 in your project root：
flutter packages get
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Simple_Demo #
import 'package:flutter/material.dart';
import 'package:flutter_swiper_plus/flutter_swiper_plus.dart';

void main() => runApp(new MyApp());

class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return new MaterialApp(
title: 'Flutter Demo',
theme: new ThemeData(
primarySwatch: Colors.blue,
),
home: new MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}

class MyHomePage extends StatefulWidget {
MyHomePage({Key? key, required this.title}) : super(key: key);

final String title;

@override
_MyHomePageState createState() => new _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {

@override
Widget build(BuildContext context) {
return new Scaffold(
appBar: new AppBar(
title: new Text(widget.title),
),
body: new Swiper(
itemBuilder: (BuildContext context,int index){
return new Image.network("http://via.placeholder.com/350x150",fit: BoxFit.fill,);
},
itemCount: 3,
pagination: new SwiperPagination(),
control: new SwiperControl(),
),
);
}
}
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Constructor #
Basic #

Parameter
Default
Description

scrollDirection
Axis.horizontal
If Axis.horizontal, the scroll view's children are arranged horizontally in a row instead of vertically in a column.

loop
true
Set to false to disable continuous loop mode.

index
0
Index number of initial slide.

autoplay
false
Set to true enable auto play mode.

onIndexChanged
void onIndexChanged(int index)
Called with the new index when the user swiped or autoplay

onTap
void onTap(int index)
Called when user tap ui.

duration
300.0
The milliscends of every transaction animation costs

pagination
null
set new SwiperPagination() to show default pagination

control
null
set new SwiperControl() to show default control buttons

Pagination #
The pagination extends from SwiperPlugin,the SwiperPlugin provides extra ui for Swiper.Set new SwiperPagination() to show default pagination.

Parameter
Default
Description

alignment
Alignment.bottomCenter
Change this value if you what to put pagination in other place

margin
const EdgeInsets.all(10.0)
The distance between inner side of the parent container.

builder
SwiperPagination.dots
There are two default styles SwiperPagination.dots and SwiperPagination.fraction,both can be customized.

If you'd like to customize your own pagination, you can do like this:
new Swiper(
...,
pagination:new SwiperCustomPagination(
builder:(BuildContext context, SwiperPluginConfig config){
return new YourOwnPaginatipon();
}
)
);
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Control buttons #
The control also extends from SwiperPlugin,set new SwiperControl() to show default control buttons.

Parameter
Default
Description

iconPrevious
Icons.arrow_back_ios
The icon data to display previous control button

iconNext
Icons.arrow_forward_ios
The icon data to display next.

color
Theme.of(context).primaryColor
Control button color

size
30.0
Control button size

padding
const EdgeInsets.all(5.0)
Control button padding

Controller #
The Controller is used to control the index of the Swiper, start or stop autoplay.You can create a controller by new SwiperController() and save the instance by futher usage.

Method
Description

void move(int index, {bool animation: true})
Move to the spicified index,with animation or not

void next({bool animation: true})
Move to next

void previous({bool animation: true})
Move to previous

void startAutoplay()
Start autoplay

void stopAutoplay()
Stop autoplay

Autoplay #

Parameter
Default
Description

autoplayDelay
3000
Autoplay delay milliseconds.

autoplayDisableOnInteraction
true
If set true, autoplay is disabled when use swipes.