flutter跑马灯

作者: liu_520 | 来源:发表于2018-12-07 00:40 被阅读31次

    flutter_marquee

    flutter 插件

    flutter 跑马灯
    可以指定跑马灯的方向
    可以传入数组,可以是自定义的widget
    可以控制跑马灯的时间间隔
    控制点击事件等等

    效果图

    QQ20181206-234225.gif

    git

    https://github.com/LiuC520/flutter_marquee

    引入:

    dependencies:
      flutter:
        sdk: flutter
      flutter_marquee:
        git: https://github.com/LiuC520/flutter_marquee.git
    

    属性

    Attribute 属性 Description 描述
    children 自定义的widget组件数组
    texts 也可以传入 字符串数组
    seletedTextColor 当前显示text的颜色,只有texts有值才生效
    textColor 其他text的颜色,只有texts有值才生效
    duration 跑马灯的切换时长 默认是4秒
    itemDuration 单个item的动画出现或者退出时长 默认是500毫秒
    autoStart 是否自动开始动画
    animationDirection 动画显示的切换方式,默认是从上往下切换: AnimationDirection.l2r、AnimationDirection.r2l、AnimationDirection.t2b、AnimationDirection.b2t
    animateDistance 移动的距离: 如果没有设置就是默认获取组件宽高,横向动画就是组建的宽度,纵向的就是组件的高度
    singleLine 是否是单行显示: 默认是false
    onChange 点击事件回调: 回调的参数是跑马灯的widget的下标

    Example

    1、首先在pubspec.yaml中添加依赖

    dependencies:
      flutter:
        sdk: flutter
      flutter_marquee:
        git: https://github.com/flutter_marquee/flutter_marquee.git
    
    
        import 'package:flutter_marquee/flutter_marquee.dart';
    
    
              Column(
                children: <Widget>[
                  Column(
                    children: <Widget>[
                      Text("从下到上,时间间隔6秒,传入的是字符串数组"),
                      Container(
                        margin: EdgeInsets.all(4),
                        height: 60,
                        width: 200,
                        decoration: BoxDecoration(
                            border: Border.all(width: 2, color: Colors.red),
                            borderRadius: BorderRadius.all(Radius.circular(8))),
                        child: FlutterMarquee(
                            texts: ["刘成", "刘成1111", "刘成2222", "刘成3333"].toList(),
                            onChange: (i) {
                              print(i);
                            },
                            duration: 4),
                      )
                    ],
                  ),
                  Column(
                    children: <Widget>[
                      Text("从上到下,时间间隔8秒,传入的是自定义的text widget"),
                      Container(
                        margin: EdgeInsets.all(4),
                        height: 60,
                        width: 200,
                        decoration: BoxDecoration(
                            border: Border.all(width: 2, color: Colors.red),
                            borderRadius: BorderRadius.all(Radius.circular(8))),
                        child: FlutterMarquee(
                            children: <Widget>[
                              Text(
                                "刘成",
                                style: TextStyle(color: Colors.red),
                              ),
                              Text("刘成1111", style: TextStyle(color: Colors.green)),
                              Text("刘成2222", style: TextStyle(color: Colors.blue)),
                              Text("刘成3333",
                                  style: TextStyle(color: Colors.yellow)),
                            ],
                            onChange: (i) {
                              print(i);
                            },
                            animationDirection: AnimationDirection.t2b,
                            duration: 8),
                      )
                    ],
                  ),
                  Column(
                    children: <Widget>[
                      Text("从左到右,时间间隔2秒,自定义的view"),
                      Container(
                        margin: EdgeInsets.all(4),
                        height: 60,
                        width: 200,
                        decoration: BoxDecoration(
                            border: Border.all(width: 2, color: Colors.red),
                            borderRadius: BorderRadius.all(Radius.circular(8))),
                        child: FlutterMarquee(
                            children: <Widget>[
                              Center(
                                child: Row(
                                  children: <Widget>[
                                    Icon(Icons.menu),
                                    Text(
                                      "刘成",
                                      style: TextStyle(color: Colors.green),
                                    ),
                                  ],
                                ),
                              ),
                              Center(
                                child: Row(
                                  children: <Widget>[
                                    Icon(Icons.add),
                                    Text(
                                      "刘成1111",
                                      style: TextStyle(color: Colors.red),
                                    ),
                                  ],
                                ),
                              ),
                              Center(
                                child: Row(
                                  children: <Widget>[
                                    Icon(Icons.satellite),
                                    Text(
                                      "刘成2222",
                                      style: TextStyle(color: Colors.blue),
                                    ),
                                  ],
                                ),
                              ),
                              Center(
                                child: Row(
                                  children: <Widget>[
                                    Icon(Icons.format_align_justify),
                                    Text("刘成3333",
                                        style: TextStyle(color: Colors.yellow)),
                                  ],
                                ),
                              ),
                            ],
                            onChange: (i) {
                              print(i);
                            },
                            animationDirection: AnimationDirection.l2r,
                            duration: 2),
                      )
                    ],
                  ),
                  Column(
                    children: <Widget>[
                      Text("从右到左,时间间隔6秒"),
                      Container(
                        margin: EdgeInsets.all(4),
                        height: 60,
                        width: 200,
                        decoration: BoxDecoration(
                            border: Border.all(width: 2, color: Colors.red),
                            borderRadius: BorderRadius.all(Radius.circular(8))),
                        child: FlutterMarquee(
                            texts: ["刘成", "刘成1111", "刘成2222", "刘成3333"].toList(),
                            onChange: (i) {
                              print(i);
                            },
                            animationDirection: AnimationDirection.r2l,
                            duration: 6),
                      )
                    ],
                  ),
    
    

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