flutter_swiper

Flutter 中最好的滑动器，具有多种布局，无限循环。兼容 Android 和 iOS。

:sparkles::sparkles: 新功能：PageTransformer

终于，我们有了类似Android的PageTransformer，只需为Swiper设置一个transformer，
它会返回一个已转换的widget。目前仅支持DEFAULT布局。
感谢@FlutterRocks，你做得太棒了?。

我们现在正在使用这个项目transformer_page_view。

:sparkles::sparkles: 新功能：布局

展示

查看更多

安装

添加

flutter_swiper : ^lastest_version

到您的 pubspec.yaml 文件，然后运行

flutter packages get 

在您项目的根目录。

基本用法

使用命令创建一个新项目

flutter create myapp

像这样编辑lib/main.dart

import 'package:flutter/material.dart';

import 'package:flutter_swiper/flutter_swiper.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, 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(),
      ),
    );
  }
}

构造函数

基础

分页

分页继承自SwiperPlugin，SwiperPlugin为Swiper提供了额外的UI。设置new SwiperPagination()以显示默认分页。

如果你想自定义自己的分页，可以这样做：

new Swiper(
    ...,
    pagination:new SwiperCustomPagination(
        builder:(BuildContext context, SwiperPluginConfig config){
            return new YourOwnPaginatipon();
        }
    )
);

控制按钮

控制也继承自SwiperPlugin，设置new SwiperControl()以显示默认控制按钮。

控制器

Controller用于控制Swiper的index，启动或停止自动播放。您可以通过new SwiperController()创建一个控制器，并通过后续使用保存该实例。

自动播放

内置布局

new Swiper(
  itemBuilder: (BuildContext context, int index) {
    return new Image.network(
      "http://via.placeholder.com/288x188",
      fit: BoxFit.fill,
    );
  },
  itemCount: 10,
  viewportFraction: 0.8,
  scale: 0.9,
)

new Swiper(
  itemBuilder: (BuildContext context, int index) {
    return new Image.network(
      "http://via.placeholder.com/288x188",
      fit: BoxFit.fill,
    );
  },
  itemCount: 10,
  itemWidth: 300.0,
  layout: SwiperLayout.STACK,
)

new Swiper(
    itemBuilder: (BuildContext context, int index) {
      return new Image.network(
        "http://via.placeholder.com/288x188",
        fit: BoxFit.fill,
      );
    },
    itemCount: 10,
    itemWidth: 300.0,
    itemHeight: 400.0,
    layout: SwiperLayout.TINDER,
 )

非常容易创建您自己的自定义动画

 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)

CustomLayoutOption旨在描述动画。
指定Swiper中各项的每个状态非常容易。

new CustomLayoutOption(
      startIndex: -1,  /// Which index is the first item of array below      
      stateCount: 3    /// array length 
  ).addRotate([        // rotation of every item 
    -45.0/180,
    0.0,
    45.0/180
  ]).addTranslate([           /// offset of every item
    new Offset(-370.0, -40.0),
    new Offset(0.0, 0.0),
    new Offset(370.0, -40.0)
  ])

代码

new ConstrainedBox(
  child: new Swiper(
    outer:false,
    itemBuilder: (c, i) {
      return new Wrap(
        runSpacing:  6.0,
        children: [0,1,2,3,4,5,6,7,8,9].map((i){
          return new SizedBox(
            width: MediaQuery.of(context).size.width/5,
            child: new Column(
              mainAxisSize: MainAxisSize.min,
              children: <Widget>[
                new SizedBox(
                  child:  new Container(
                    child: new Image.network("https://fuss10.elemecdn.com/c/db/d20d49e5029281b9b73db1c5ec6f9jpeg.jpeg%3FimageMogr/format/webp/thumbnail/!90x90r/gravity/Center/crop/90x90"),
                  ),
                  height: MediaQuery.of(context).size.width * 0.12,
                  width: MediaQuery.of(context).size.width * 0.12,
                ),
                new Padding(padding: new EdgeInsets.only(top:6.0),child: new Text("$i"),)
              ],
            ),
          );
        }).toList(),
      );
    },
    pagination: new SwiperPagination(
      margin: new EdgeInsets.all(5.0)
    ),
    itemCount: 10,
  ),
    constraints:new BoxConstraints.loose(new Size(screenWidth, 170.0))
),

GitHub

https://github.com/best-flutter/flutter_swiper