Android实现原理-阿里云

Android IO 框架 Okio 的实现原理，如何检测超时？

本文已收录到 AndroidFamily，技术和职场问题，请关注公众号 [彭旭锐] 提问。前言大家好，我是小彭。在上一篇文章里，我们聊到了 Square 开源的 I/O 框架 Okio 的三个优势：精简且全面的 API、基于共享的缓冲区设计以及超时机制。前两个优势已经分析过了，今天我们来...

Android IO 框架 Okio 的实现原理，到底哪里 OK？

本文已收录到 AndroidFamily，技术和职场问题，请关注公众号 [彭旭锐] 提问。前言大家好，我是小彭。今天，我们来讨论一个 Square 开源的 I/O 框架 Okio，我们最开始接触到 Okio 框架还是源于 Square 家的 OkHttp 网络框架。那么，OkHttp 为什么要使用 ...

开源Android容器化框架Atlas开发者指南

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深入分析 Android 系统返回手势的实现原理（2）

4. 创建返回手势视图InputMonitor 创建完毕之后，EdgeBackGestureHandler 将立即创建手势视图即 NavigationBarEdgePanel 实例。并通过 setEdgeBackPlugin() 将其缓存，同时准备好承载该视图的 Window 参数一并传递过去。//...

深入分析 Android 系统返回手势的实现原理(1)

Android 10 正式引入了全屏手势导航（Gesture Navigation），Home 键和 History 键的功能借助上滑和悬停手势得以保留，而 Back 键则以返回手势（Back Gesture）重新与大家见面。相较 iOS 早期便有的全局返回功能，Android 直到版本 10 才姗...

Android 内存缓存框架 LruCache 的实现原理，手写试试？

本文已收录到 AndroidFamily，技术和职场问题，请关注公众号 [彭旭锐] 提问。前言大家好，我是小彭。在之前的文章里，我们聊到了 LRU 缓存淘汰算法，并且分析 Java 标准库中支持 LUR 算法的数据结构 LinkedHashMap。当时，我们使用 LinkedHashMap 实现了简...

浅谈Android热修复的前因后果与实现原理。（下）

DexPathListfinal class DexPathList { //文件后缀 private static final String DEX_SUFFIX = ".dex"; private static final String zipSeparator = "!/"; ** class...

浅谈Android热修复的前因后果与实现原理。（上）

首先，我们需要持有以下几个问题:什么是热修复？它可以帮我解决什么问题？热修复的产生背景？热修复的基本原理是什么？如何选择热修复框架？热修复的注意事项热修复与多渠道？自动化构建与热修复？上面一共有7个问题，如果是新同学的话，后面两条可能不会很了解，...

从头到尾给你讲明白Android View实现原理

Activity是Android开发者写第一行代码起就开始接触到的。而在onCreate方法中调用setContentView(R.layout.main_activity),恐怕也是绝大多数开发者的头等任务。然后我们可以调用findViewById(R.id.xxx)来获取布局中的某一个View。...

一文详解 Android状态机StateMachine 使用方式及实现原理

工作中有一同事说到Android状态机StateMachine。作为一名Android资深工程师，我居然没有听说过StateMachine，因此抓紧时间学习一下。StateMachine不是Android SDK中的相关API，其存在于frameworks层源码中的一个Java类。可能因为如此，许多...

Android动画一：Activity过渡动画详细实现原理

虽然 Android 5.0 之后推出了新的过渡动画方式，但通常只是用于特定的场合使用，activity.overridePendingTransition() 通用方式的过渡动画还是很常用。原理分析 startActivity(Intent(this,SecondActivity::class....

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