Android核心知识点笔记.pdf_android核心知识点

Android

知识框架

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一、JAVA 知识点汇总

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1.1 JVM

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1.1.1 JVM 工作流程

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1.1.2 运行时数据区（Runtime Data Area）

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1.1.3 方法指令

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1.1.4 类加载器

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1.1.5 垃圾回收 gc

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1.1.5.1 对象存活判断

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1.1.5.2 垃圾收集算法

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1.1.5.3 垃圾收集器

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1.1.5.4 内存模型与回收策略

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1.2 static

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1.3 final

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1.4 String、StringBuffer、StringBuilder

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1.5 异常处理

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1.6 内部类

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1.6.1 匿名内部类

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1.7 多态

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1.8 抽象和接口

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1.9 集合框架

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1.9.1 HashMap

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1.9.1.1 结构图

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1.9.1.2 HashMap 的工作原理

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1.9.1.3 HashMap 与 HashTable 对比

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1.9.2 ConcurrentHashMap

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1.9.2.1 Base 1.7

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1.9.2.2 Base 1.8

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1.9.3 ArrayList

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1.9.4 LinkedList

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1.9.5 CopyOnWriteArrayList

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1.10 反射

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1.11 单例

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1.11.1 饿汉式

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1.11.2 双重检查模式

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1.11.3 静态内部类模式

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1.12 线程

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1.12.1 属性

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1.12.2 状态

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1.12.3 状态控制

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1.13 volatile

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1.14 synchronized

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1.14.1 根据获取的锁分类

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1.14.2 原理

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1.15 Lock

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1.15.1 锁的分类

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1.15.1.1 悲观锁、乐观锁

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1.15.1.2 自旋锁、适应性自旋锁

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1.15.1.3 死锁

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1.16 引用类型

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1.17 动态代理

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1.18 元注解

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二、Android 知识点汇总

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2.1 Activity

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2.1.1 生命周期

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2.1.2 启动模式

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2.1.3 启动过程

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2.2 Fragment

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2.2.1 特点

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2.2.2 生命周期

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2.2.3 与 Activity 通信

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2.3 Service

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2.3.1 启动过程

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2.3.2 绑定过程

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2.3.3 生命周期

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2.3.4 启用前台服务

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2.4 BroadcastReceiver

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2.4.1 注册过程

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2.5 ContentProvider

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2.5.1 基本使用

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2.6 数据存储

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2.7 View

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2.7.1 MeasureSpec

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2.7.2 MotionEvent

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2.7.3 VelocityTracker

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2.7.4 GestureDetector

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2.7.5 Scroller

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2.7.6 View 的滑动

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2.7.7 View 的事件分发

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2.7.8 在 Activity 中获取某个 View 的宽高

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2.7.9 Draw 的基本流程

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2.7.10 自定义 View

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2.8 进程

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2.8.1 进程生命周期

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2.8.2 多进程

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2.8.3 进程存活

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2.8.3.1 OOM_ADJ

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2.8.3.2 进程被杀情况

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2.8.3.3 进程保活方案

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2.9 Parcelable 接口

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2.9.1 使用示例

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2.9.2 方法说明

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2.9.3 Parcelable 与 Serializable 对比

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2.10 IPC

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2.10.1 IPC 方式

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2.10.2 Binder

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2.10.3 AIDL 通信

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2.10.4 Messenger

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2.11 Window / WindowManager

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2.11.1 Window 概念与分类

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2.11.2 Window 的内部机制

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2.11.3 Window 的创建过程

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2.11.3.1 Activity 的 Window 创建过程

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2.11.3.2 Dialog 的 Window 创建过程

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2.11.3.3 Toast 的 Window 创建过程

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2.12 Bitmap

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2.12.1 配置信息与压缩方式

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2.12.2 常用操作

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2.12.2.1 裁剪、缩放、旋转、移动

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2.12.2.2 Bitmap 与 Drawable 转换

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2.12.2.3 保存与释放

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2.12.2.4 图片压缩

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2.12.3 BitmapFactory

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2.12.3.1 Bitmap 创建流程

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2.12.3.2 Option 类

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2.12.3.3 基本使用

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2.12.4 内存回收

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2.13 屏幕适配

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2.13.1 单位

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2.13.2 头条适配方案

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2.13.3 刘海屏适配

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2.14 Context

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2.15 SharedPreferences

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2.15.1 获取方式

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2.15.1.1 getPreferences

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2.15.1.2 getDefaultSharedPreferences

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2.15.1.3 getSharedPreferences

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2.15.2 架构

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2.15.3 apply / commit

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2.15.4 注意

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2.16 消息机制

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2.16.1 Handler 机制

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2.16.2 工作原理

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2.16.2.1 ThreadLocal

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2.16.2.2 MessageQueue

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2.16.2.3 Looper

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2.16.2.4 Handler

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2.17 线程异步

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2.17.1 AsyncTask

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2.17.1.1 基本使用

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2.17.1.2 工作原理

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2.17.2 HandlerThread

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2.17.3 IntentService

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2.17.4 线程池

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2.18 RecyclerView 优化

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2.19 Webview

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2.19.1 基本使用

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2.19.1.1 WebView

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2.19.1.2 WebSettings

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2.19.1.3 WebViewClient

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2.19.1.4 WebChromeClient

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2.19.2 Webview 加载优化

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2.19.3 内存泄漏

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三、Android 扩展知识点

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3.1 ART

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3.1.1 ART 功能

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3.1.1.1 预先 (AOT) 编译

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188

3.1.1.2 垃圾回收优化

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188

3.1.1.3 开发和调试方面的优化

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3.1.2 ART GC

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190

3.2 Apk 包体优化

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3.2.1 Apk 组成结构

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3.2.2 整体优化

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3.2.3 资源优化

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3.2.4 代码优化

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3.2.5 .arsc 文件优化

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3.2.6 lib 目录优化

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3.3 Hook

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3.3.1 基本流程

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3.3.2 使用示例

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195

3.4 Proguard

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3.4.1 公共模板

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197

3.4.2 常用的自定义混淆规则

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203

3.4.3 aar 中增加独立的混淆配置

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3.4.4 检查混淆和追踪异常

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3.5 架构

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3.5.1 MVC

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3.5.2 MVP

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3.5.3 MVVM

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3.6 Jetpack

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3.6.1 架构

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