【Flutter】堆叠式卡轮播

老孟Flutter

发布于 2021-06-09 10:41:47

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发布于 2021-06-09 10:41:47

文章被收录于专栏：Flutter

作为移动应用程序开发人员，我们有时需要制作滑动的，动画的背景图像轮播。但是，有时候，我们需要制作一张滑动卡片传送带，其中包含一些具有各种背景颜色，图像或渐变的信息。

在在本博客中，我们将探讨「Flutter中」 的**堆叠式卡轮播。**我们还将实现一个演示程序，并学习在您的flutter应用程序中使用「stacked_card_carousel」包创建一个带有垂直轮播的堆叠卡。

pub地址：https://pub.dev/packages/stacked_card_carousel

用于创建带有堆叠卡片的垂直轮播的小部件。下面的演示视频显示了如何在Flutter中创建带有垂直旋转木马的堆叠卡。它显示了在您的flutter应用程序中如何使用「stacked_card_carousel」软件包来使用堆叠式卡轮播。它显示了垂直圆盘传送带滑动卡的列表，所有卡向上滑动并堆叠，称为堆叠式卡传送带。它会显示在您的设备上。

堆叠式卡轮播的一些属性：

**items：**这些属性表示卡小部件的列表。
**initialOffset：**这些属性表示卡的初始垂直顶部偏移。
**spaceBetweenItems：**这些属性表示项目之间的垂直空间。值从第一个项目的顶部开始。
**applyTextScaleFactor：**这些属性表示如果设置为true，则根据文本比例因子线性扩展空间和位置。缩小比例被省略。

使用

添加依赖

stacked_card_carousel: ^0.0.2+1

引入

import 'package:stacked_card_carousel/stacked_card_carousel.dart';

运行命令：「flutter packages get」

启用「AndriodX」

org.gradle.jvmargs=-Xmx1536M
android.enableR8=true
android.useAndroidX=true
android.enableJetifier=true

在libs目录下创建 「style_card.dart」 文件

final Image image;
final String title;
final String description;

const StyleCard({
  Key key,
  this.image,
  this.title,
  this.description
}) : super(key: key);

在卡片内，我们将添加一个height属性并添加一个列小部件。在列小部件中，我们将为图像添加一个容器，添加标题和描述。然后在stacked_card_demo页面上调用该卡。

Card(
  elevation: 4.0,
  child: Padding(
    padding: const EdgeInsets.all(12.0),
    child: Column(
      children: <Widget>[
        Container(
          width: MediaQuery.of(context).size.width*0.7,
          height: MediaQuery.of(context).size.width*0.65,
          child: image,
        ),
        SizedBox(height: 5,),
        Text(
          title,
          style: TextStyle(color: Colors.pinkAccent,fontSize: 22,fontWeight: FontWeight.bold),
        ),
        SizedBox(height: 10,),
        Text(
          description,
          style: TextStyle(color: Colors.black),textAlign: TextAlign.center,
        ),

      ],
    ),
  ),
);

创建 「stacked_card_demo.dart」文件

StackedCardCarousel(
  initialOffset: 40,
  spaceBetweenItems:400 ,
  items: styleCards,
),

添加「initialOffset」表示卡片的初始垂直顶部偏移量，「spaceBetweenItems」表示项目之间的垂直间隔。值从第一个项目的顶部开始。选择一个与您的卡大小相关的值。最后，我们将添加一个表示卡小部件列表的「项目」。

创建一个styleCards列表，并在其中添加一个StyleCard（）类。

final List<Widget> styleCards = [
  StyleCard(
    image: Image.asset("assets/deepak.jpg"),
    title: "Team Leader",
    description: "It play extremely important role in motivating\nour team and ensuring their success.",
  ),
  StyleCard(
    image: Image.asset("assets/yashwant.png"),
    title: "Secondary Team Leader ",
    description: "It provides guidance, instruction, direction to\nour team. Handsome member in our team.",

  ),
  StyleCard(
    image: Image.asset("assets/akshay.png"),
    title: "Software Engineer",
    description: "Team player, hard worker, expert in\n both andriod and flutter",

  ),
  StyleCard(
    image: Image.asset("assets/aditya.png"),
    title: "Software Engineer",
    description: "Smart, quick learner, and very\ndedicated to the work.",

  ),
  StyleCard(
    image: Image.asset("assets/naveen.png"),
    title: "Associate Software Engineer",
    description: "Flutter developer, keen learner\n very supporting. Bodyguard of our team",
  ),
  StyleCard(
    image: Image.asset("assets/mohit.png"),
    title: "Associate Software Engineer",
    description: "Responsible team member,situation handler,\nand a sharp learner with flutter and blogs.",
  ),
  StyleCard(
    image: Image.asset("assets/shaiq.png"),
    title: "Associate Software Engineer",
    description: "Flutter developer with a passion for learning,\nstar blogger, punctual and \na handsome teammate.",
  ),
  StyleCard(
    image: Image.asset("assets/rakhi.png"),
    title: "Associate Software Engineer",
    description: "Newest team member, with high passion for\nlearning very sharp,and dedicated.Need more\ntime to know about you.",
  ),
];

我们将创建八种样式的卡片，并在其中添加图片，标题和说明。将所有数据添加到**StackedCardCarousel（）上。**当该代码运行，你会看到卡的列表。当用户仅以垂直轮播格式向上滑动时，所有卡都将重叠并堆叠到另一个称为堆叠卡轮播中；当用户以垂直格式向下滑动所有向上的卡时，所有卡都将回到原始位置。当我们运行应用程序时，我们应该获得屏幕的输出，如屏幕下方的截图所示。

完整实现

import 'package:flutter/material.dart';
import 'package:flutter_stacked_card_carousel/style_card.dart';
import 'package:stacked_card_carousel/stacked_card_carousel.dart';

class StackedCardDemo extends StatefulWidget {

  @override
  _StackedCardDemoState createState() => _StackedCardDemoState();
}

class _StackedCardDemoState extends State<StackedCardDemo> {
  final List<Widget> styleCards = [
    StyleCard(
      image: Image.asset("assets/deepak.jpg"),
      title: "Team Leader",
      description: "It play extremely important role in motivating\nour team and ensuring their success.",
    ),
    StyleCard(
      image: Image.asset("assets/yashwant.png"),
      title: "Secondary Team Leader ",
      description: "It provides guidance, instruction, direction to\nour team. Handsome member in our team.",

    ),
    StyleCard(
      image: Image.asset("assets/akshay.png"),
      title: "Software Engineer",
      description: "Team player, hard worker, expert in\n both andriod and flutter",

    ),
    StyleCard(
      image: Image.asset("assets/aditya.png"),
      title: "Software Engineer",
      description: "Smart, quick learner, and very\ndedicated to the work.",

    ),
    StyleCard(
      image: Image.asset("assets/naveen.png"),
      title: "Associate Software Engineer",
      description: "Flutter developer, keen learner\n very supporting. Bodyguard of our team",
    ),
    StyleCard(
      image: Image.asset("assets/mohit.png"),
      title: "Associate Software Engineer",
      description: "Responsible team member,situation handler,\nand a sharp learner with flutter and blogs.",
    ),
    StyleCard(
      image: Image.asset("assets/shaiq.png"),
      title: "Associate Software Engineer",
      description: "Flutter developer with a passion for learning,\nstar blogger, punctual and \na handsome teammate.",
    ),
    StyleCard(
      image: Image.asset("assets/rakhi.png"),
      title: "Associate Software Engineer",
      description: "Newest team member, with high passion for\nlearning very sharp,and dedicated.Need more\ntime to know about you.",
    ),
  ];

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        automaticallyImplyLeading: false,
        title: Text('Stacked Card Carousel Demo'),
      ),
      body: StackedCardCarousel(
        initialOffset: 40,
        spaceBetweenItems:400 ,
        items: styleCards,
      ),
    );
  }
}

原文地址：https://medium.com/flutterdevs/stacked-card-carousel-in-flutter-9bbb3b89ca81

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原始发表：2021-05-27，如有侵权请联系 cloudcommunity@tencent.com 删除

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