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README
Apache-2.0

一多开发实例-长视频

简介

本篇Codelab基于自适应布局和响应式布局,实现一次开发,多端部署的长视频页面。通过“三层工程架构”实现代码复用,并根据手机、折叠屏、平板以及PC/2in1不同的设备尺寸实现对应页面。

手机运行效果图如下:

折叠屏运行效果图如下:

平板、PC/2in1运行效果图如下:

相关概念

  • 一次开发,多端部署:一套代码工程,一次开发上架,多端按需部署。支撑开发者高效的开发支持多种终端设备形态的应用,实现对不同设备兼容的同时,提供跨设备的流转、迁移和协同的分布式体验。
  • 自适应布局:当外部容器大小发生变化时,元素可以根据相对关系自动变化以适应外部容器变化的布局能力。相对关系如占比、固定宽高比、显示优先级等。
  • 响应式布局:当外部容器大小发生变化时,元素可以根据断点、栅格或特定的特征(如屏幕方向、窗口宽高等)自动变化以适应外部容器变化的布局能力。
  • GridRow:栅格容器组件,仅可以和栅格子组件(GridCol)在栅格布局场景中使用。
  • GridCol:栅格子组件,必须作为栅格容器组件(GridRow)的子组件使用。
  • 使用AVPlayer开发音频播放:使用AVPlayer可以实现端到端播放原始媒体资源。

相关权限

不涉及。

使用说明

  1. 分别在手机、折叠屏、平板安装并打开应用,不同设备的应用页面通过响应式布局和自适应布局呈现不同的效果。
  2. 首页内容,支持上下滑动,Banner左右滑动,图标列表左右滑动。
  3. 长按推荐视频区域的第一张图片,能够预览视频。鼠标右键点击推荐视频区域,弹出菜单。鼠标悬停在推荐视频区域,图片放大。PC/2in1和折叠屏设备,两指捏合推荐视频区能够缩放或放大。
  4. 切换顶部的社区tab,查看首页的沉浸式设计。PC/2in1设备,切换顶部的视频tab,查看Banner图的创新排版。
  5. 点击顶部的搜索框,展示搜索页内容。 搜索框输入“华”,出现智能提示页面。点击智能提示中的“华为发布会”,出现搜索结果页面。点击搜索结果中的播放按钮,进入视频详情页。
  6. 视频详情页默认播放视频,点击视频进行播放/暂停,点击/拖动进度条能够跳转播放。
  7. 手机/折叠屏上滑时,相关列表先隐藏,视频再等比缩小,然后滑动评论区;PC/2in1上滑时,视频等比缩小,然后滑动简介区。点击视频区域的全屏按钮,进入全屏播放页。
  8. 全屏播放视频,点击播放/暂停按钮,控制视频播放/暂停。点击选集按钮,显示选集工具栏。

约束与限制

  1. 本示例仅支持标准系统上运行,支持设备:华为手机。
  2. HarmonyOS系统:HarmonyOS 5.0.0 Release及以上。
  3. DevEco Studio版本:DevEco Studio 5.0.0 Release及以上。
  4. HarmonyOS SDK版本:HarmonyOS 5.0.0 Release SDK及以上。
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简介

基于自适应和响应式布局,实现一次开发,多端部署-长视频类应用,视觉、控件等符合设计规范,并包含键鼠适配、横屏适配等。 展开 收起
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