# Knowledge System Catalog

## 0、Trend
### Cross-platform
### Machine Learning
### AR & VR
### Audio & Video
### Blockchain
### Basic framework
### Tool apps

## 1、Learning System Source Code

### Components
#### Android Four Components
##### Activity
###### Launching Process of Activity
###### Launching Procedure&Mode
###### Lifecycle
###### Relationship with Window/View
###### Relationship with Fragment
##### Service
###### IPC（AIDL）、IntentService
##### Insight into ContentProvider
##### Insight into BroadcastReceiver
#### Fragment
##### Lazy Load
##### Communicate with Activity
#### Insight into Context
#### Window
##### Toast
##### Dialog
##### PopupWindow
##### Differences between PopupWindow&Dialog
#### WebView
##### JSBridge
##### Deeplink
##### Accelerate Method
#### RecyclerView
##### Level 4 Cache + Partial Refresh
##### Comparision with ListView
#### Comparision of LinearLayout & RelativeLayout's efficiency at the Same Layer
### System Service
#### ActivityManagerService
#### Window&WindowManager
#### WindowManagerService
#### ServiceManager
### procedure
#### Starting Procedure in Android System
##### Starting Procedure of system_server
#### Android Apk Installation
#### Android Application Process Launch
### Communication
#### WIFI
#### NFC
#### Bluetooth

## 2、Architecture

### Design Patterns
### Architecture Pattern
#### MVP
#### MVVM
##### DataBinding
#### Flux
#### Clean Architecture
#### Android Architecture Components
#### Android Jetpack Architecture
### App Framework
#### Package Designing
#### Layering

## 3. Open Source Library

### How to thoroughly grasp Open Source Library
### ORM Frame
#### GreenDao
#### Room
### EventBus
#### EventBus(Open Source Lib)
##### 4 mode and sticky event
##### Observer Pattern for decoupling
### Network
#### Retrofit
#### OKHttp
##### Interceptor（Chain Of Responsibility Model）
##### Timeout Retransmission & Redirect
##### Http Cache
##### Reuse Of Socket Connection Pool
#### Volley
### Image
#### Glide
#### Fresco
#### Picasso
### Dependency Injection
#### ButterKnife
#### Dagger2
### Serialization
#### Gson
#### FastJson
### ARouter
### Responsive Program
#### RxJava
##### Commonly used operator
##### Thread Scheduling
##### Exception Handling
##### Flowable Back Pressure
#### RxBinding
#### RxAndroid

## 4. Test

### UnitTest
#### Robolectric
#### Automated Test
#### UI Automation
#### Monkey

## 5. Common Mechanism

### Thread Communication
#### Handler Principle
#### AsyncTask
#### HandlerThread
#### IntentService
#### RxJava
### Binder Mechanism
### Thread
#### lowmemorykiller
#### Thread Priority
### View System
#### Custom Control
##### Event Distribution Mechanism
##### Custom animation
##### Lottie Parsing Library
##### Draw
### Android Message Mechanism
### Local Storage
#### Sqlite, SharedPreferences and File
### Resource Management System and Resource Loading Mechanism

## 6. Android Basic Skills

### Advanced Java
#### Java Reflection
#### Dynamic Proxy
#### IO & NIO
#### Multithreading and Concurrency
#### Network Protocol
#### Collection
##### How can I master so many collections?
##### HashMap
##### LinkedHashMap
##### HashTable
##### ConcurrentHashMap
##### TreeMap
##### SparseArray
### DataStructure & Algorithm
### Operating System
### ComputerNetwork
#### Network protocol : DNS, HTTP/1.X, HTTPS, HTTP/2, TCP UDP
#### SSL
### Java Virtual Machine
#### JVM
#### ART & Dalvik
##### AOT compilation
##### Bytecode & Dex
#### GC Mechanism

## 7. Android Advanced

### Resource Management
#### Theme Style
#### Multi Resolution Support
#### AssertManager
#### Resource
### Package
#### Gradle
#### Compile
#### Code Confusion
#### App Signature
### AOP
### Dynamic
#### The development of dynamic technology
#### Cross-platform
##### Summary
##### React Native
##### Fuchsia+Flutter+Dart
##### weex
##### JavaScript Engine
##### Render Engine
##### Layout Engine
#### Android Plugin
##### class and dex
##### ClassLoader
###### Hook Activity Lifecycle
###### Parent Delegation Model
##### Plugin principle
##### Plugin Framework
#### Hot-Fix
### Cross-platform Language
#### React
#### Vue
#### Wechat Mimi-program
### Componentization
#### Router
### Message Push & Keep-alive
#### Long Link 4 Keep-alive
##### Heartbeat packet
#### Progress 4 Keep-alive
### JNI
### Safety
#### root principle
#### Binary Loophole
#### Classic Loophole(eg:cve20143153 cve20153636)
#### poc & exp
#### Android Reversing
##### arm compilation
##### smali bytecode
##### DEX and ELF structure
##### Android and Linux debug and anti-debug technique
##### apk strengthen and anti-strengthen
##### Hook
### Multimedia
#### Image
##### Image Handler
##### Animation
##### Image Loading
#### Audio And Video
##### Audio Encode&Decode
##### AudioTrack Play
##### Video Encode&Decode
##### OpenGL Measure
##### Video Editing and Transcoding
##### Video Filter
### Performance Optimization
#### App start time and code start time
##### Prevent white screen at startup
#### Crash collection and analysis
#### Smooth detection and optimization
##### ARR
##### Avoid frequently GC
##### ViewHolder
#### Layout optimization
##### include、merge、ViewStub
#### Thread optimization
#### Monitor
##### User behavior tracking
##### APM Performance
##### WebView performance
##### leakcanary
#### Memory optimization
##### OOM
##### Memory leak
##### Image compression
##### Memory Analysis
#### Reduce app size
#### Battery optimization
#### Network optimization
##### Network Debug
##### Low Network solution
##### API optimization
##### Optimize network data usage
### Continuous Integration
#### Jenkins

## 8. Others

### Python
### Linux
#### kernel source code
#### SELinux
#### Memory Map
### Docker

## 9. Android Books

### 入门
#### 第一行代码
#### Android群英传
#### Android编程权威指南
#### Android编程实战
### 进阶
#### Android开发进阶从小工到专家
#### 深入理解Android
#### Android组件化架构
#### App研发录
#### Android 进阶解密
#### Android 进阶之光
### 源码
#### Android源码设计模式解析与实战
#### Android开发艺术探索
#### Creating Dynamic UI with Android Fragments
### 安全
#### Android安全架构深究
#### Android软件安全与逆向分析
### 底层
#### Android系统源代码情景分析
#### Android内核剖析
#### 深入理解Android内核设计思想

## 10. Balance of Breadth and Depth

### Team Management
#### Agile Development
#### Devops
#### CodeReview
#### Code Quality and Specification
### Self-management
### Back-End
#### DDD
#### Microservice

## 11. Language

### Kotlin
### Kotlin Coroutine
### C、C++（NDK）
### SQL（DB）