Android原理view 的相关内容

文章 2024-05-17 来自：开发者社区

Android显示原理，安卓自定义view面试

一个android应用程序窗口里面包含了很多UI元素，这些元素是以树形结构来组织的，即它们存在着父子关系，其中，子UI元素位于父UI元素里面。因此，在绘制一个android应用程序窗口的UI之前，首先要确定里面的各个子UI元素在父UI元素里面的大小和位置。确定各个子UI元素在父UI元素里面的大小以及位置的过程有称为测量过程和布局过程。因此，android应用程序窗口的UI渲染...

阿里云文档 2023-09-03

如何自定义Android小程序的View_移动开发平台 mPaaS(mPaaS)

说明：Android 小程序的自定义 View 功能仅在 mPaaS 10.1.68.29 及以上版本中支持。说明升级基线参考 mPaaS 升级指南升级基线版本至 10.1.68.29 及以上，并添加小程序组件至工程。mPaaS 升级指南使用定制的 appx 基础库，代码示例如下： depende...

阿里云文档 2023-09-03

如何自定义View的渲染参数_移动开发平台 mPaaS(mPaaS)

说明：Android 小程序自定义 View 自定义渲染参数功能仅在 mPaaS 10.1.68.29 及以上版本中支持。当前使用的基线版本低于 10.1.68.29 时，可参考 mPaaS 升级指南升级基线版本至 10.1.68.29。说明mPaaS 升级指南小程序标签内添加自定义渲染参数

阿里云文档 2023-09-03

Android小程序如何发送自定义消息_移动开发平台 mPaaS(mPaaS)

说明：Android 小程序发送自定义消息至自定义 View 功能仅在 mPaaS 10.1.68.29 及以上版本中支持。当前使用的基线版本低于 10.1.68.29 时，可参考 mPaaS 升级指南升级基线版本至 10.1.68.29。说明mPaaS 升级指南创建自定义 View contex...

阿里云文档 2023-09-03

如何发送自定义事件至小程序_移动开发平台 mPaaS(mPaaS)

说明：Android 自定义 View 发送自定义事件至小程序功能仅在 mPaaS 10.1.68.29 及以上版本中支持。当前使用的基线版本低于 10.1.68.29 时，可参考 mPaaS 升级指南升级基线版本至 10.1.68.29。说明mPaaS 升级指南在小程序标签内增加自定义事件回调在...

文章 2022-02-16 来自：开发者社区

Android项目：模仿ConvertView原理(ListView的getView方法)对View对象进行回收和复用

在项目优化过程中,通过MAT监控发现存在一处内存泄露,反复进入某个页面,内存占用越来越大。后分析找到了泄露原因,原来是在自定义列表中,将行布局的layout文件inflate成view对象的时候,每加载一次列表就要new出一组新的view对象。因为没有对这些布局一致的view进行复用,又没法及时释放,导致了列表的行布局对象越积越多,造成内存泄露。解决这个oom问题,首...

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更新时间 2024-05-18 12:06:37

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