Android app开发管理器实战的相关内容

文章 2023-12-19 来自：开发者社区

Android App开发音量调节中实现拖动条和滑动条和音频管理器AudioManager讲解及实战（超详细附源码和演示视频）

需要源码请点赞关注收藏后评论区留下QQ~~~一、拖动条和滑动条拖动条SeekBar继承自进度条ProgressBar，它与进度条的不同之处在于，进度条只能在代码中修改进度值，不能由用户改变进度值，拖动条不仅可以在代码中修改进度值，还可以由用户拖动操作改变进度值，在播放音频和视频时，用户通过拖动条控制播放器快进或快退到指定位置，然后从新位置开始播放，除此之外，拖动条还可以调节音量大小，屏幕亮度，字....

文章 2023-12-19 来自：开发者社区

Android Studio App开发之下载管理器DownloadManager中显示、轮询下载进度、利用POST上传文件讲解及实战（附源码）

运行有问题或需要源码请点赞关注收藏后评论区留言~~~一、在通知栏显示下载进度利用GET方式读取数据有很多缺点比如1：无法端点续传一旦中途失败只能重新获取2：不是真正意义上的下载操作无法设置参数3：下载过程中无法在界面上上展示下载状态因为下载功能比较常用而且业务功能比较单一，所以Android专门提供了下载管理DownloadManager，方便开发者统一管理下载操作主要步骤可分为以下两步1：....

文章 2023-12-19 来自：开发者社区

Android Studio App开发之循环试图RecyclerView，布局管理器LayoutManager、动态更新循环视图讲解及实战（附源码）

运行有问题或需要全部源码请点赞关注收藏后评论区留言~~~一、循环视图RecyclerView尽管ListView和GridView分别实现了多行单列和多行多列的列表，使用也很简单，可是它们缺少变化，风格也比较呆板，为此Android推出了更灵活多变的循环视图RecyclerView，它的功能非常强大下面是它常用方法说明1：setAdapter 设置列表项的循环适配器2：setLayoutMan....

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