上篇写了TabList+Fraction实现顶部导航这篇文章用RadioContainer+Fraction实现底部导航。先看效果图: 一、AbilitySlice布局文件二、初始化RadioContainerradio_container=(RadioContainer)findComponentById(ResourceTable.Id_radio_container);三、监听选中事件并在选中事件中处理显示fraction逻辑radio_container.setMarkChangedListener((radioContainer,i)->{HiLog.error(LABEL,"