Android view流程的相关内容

文章 2024-10-30 来自：开发者社区

Android面试高频知识点(3) 详解Android View的绘制流程

View的绘制和事件处理是两个重要的主题，上一篇《图解 Android事件分发机制》已经把事件的分发机制讲得比较详细了，这一篇是针对View的绘制，View的绘制如果你有所了解，基本分为measure、layout、draw 过程，其中比较难理解就是measure过程，所以本篇文章大幅笔地分析measure过程，相对讲得比较详细，文章也比较长，如果你对View的绘制还不是很懂，对measure过....

文章 2024-10-26 来自：开发者社区

Android面试高频知识点(3) 详解Android View的绘制流程

文章 2024-10-14 来自：开发者社区

Android View的绘制流程和原理详细解说

文章 2024-08-01 来自：开发者社区

Android面试高频知识点(3) 详解Android View的绘制流程

文章 2024-07-09 来自：开发者社区

Android面试题自定义View之Window、ViewRootImpl和View的三大流程

本文首发于公众号“AntDream”，欢迎微信搜索“AntDream”或扫描文章底部二维码关注，和我一起每天进步一点点 View的三大流程指的是measure(测量)、layout(布局)、draw(绘制)。下面我们来分别看看这三大流程 View的measure(测量) MeasureSpec MeasureSpec是View的一个内部静态类 //view.class publ...

文章 2022-02-17 来自：开发者社区

android之View Touch事件的传递流程

android应用界面的布局如下图所示，一般我们在展示一个界面时会使用一个Activity表示；而Activity时通过Window展示的，android的Window实现类叫PhoneWindow；PhoneWindow类有个mDecor的DectorView全局变量，用来对界面的View元素进行修饰；DectorView用来修饰ActionBar、ContentView(Activity.s....

文章 2022-02-16 来自：开发者社区

Android View 测量流程(Measure)完全解析

前言上一篇文章，笔者主要讲述了DecorView以及ViewRootImpl相关的作用，这里回顾一下上一章所说的内容：DecorView是视图的顶级View，我们添加的布局文件是它的一个子布局，而ViewRootImpl则负责渲染视图，它调用了一个performTraveals方法使得ViewTree开始三大工作流程，然后使得View展现在我们面前。本篇文章主要内容是：详细讲述View的测量(....

文章 2022-02-16 来自：开发者社区

Android View 布局流程(Layout)完全解析

前言上一篇文章，笔者详细讲述了View三大工作流程的第一个，Measure流程，如果对测量流程还不熟悉的读者可以参考一下上一篇文章。测量流程主要是对View树进行测量，获取每一个View的测量宽高，那么有了测量宽高，就是要进行布局流程了，布局流程相对测量流程来说简单许多。那么我们开始对layout流程进行详细的解析。 ViewGroup的布局流程上一篇文章提到，三大流程始于ViewRootI....

文章 2022-02-16 来自：开发者社区

Android View 绘制流程(Draw) 完全解析

前言前几篇文章，笔者分别讲述了DecorView，measure，layout流程等，接下来将详细分析三大工作流程的最后一个流程——绘制流程。测量流程决定了View的大小，布局流程决定了View的位置，那么绘制流程将决定View的样子，一个View该显示什么由绘制流程完成。以下源码均取自Android API 21。从performDraw说起前面几篇文章提到，三大工作流程始于ViewRo....

文章 2022-02-16 来自：开发者社区

Android面试，View绘制流程以及invalidate()等相关方法分析

整个View树的绘图流程是在ViewRoot.java类的performTraversals()函数展开的，该函数做的执行过程可简单概况为根据之前设置的状态，判断是否需要重新计算视图大小(measure)、是否重新需要安置视图的位置(layout)、以及是否需要重绘 (draw)，其框架过程如下： measure()过程 &n...

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更新时间 2024-10-31 08:39:10

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