摘要：最佳解析最佳解析最佳解析是一個依賴注入框架，由谷歌開發，最早的版本由公司開發。在對的介紹中指出，即，這里的即數據結構中的有向無環圖。也就是說，是一個基于有向無環圖結構的依賴注入庫，因此的使用過程中不能出現循環依賴。

在開發過程中使用過很多優秀框架，比如網絡的okhttp，圖片的Fresco，注入的Gagger2等，都是非常優秀的框架。

所以今天在此介紹下至今本人知道的一些比較流行主流且很優秀的框架。

根據上圖我們依次說明：

硬盤緩存最佳方案(Google提供的一套硬盤緩存的解決方案：DiskLruCache(非Google官方編寫，但獲得官方認證))

DiskLruCache 最佳解析

UIL aims to provide a powerful, flexible and highly customizable instrument for image loading, caching and displaying. 

    It provides a lot of configuration options and good control over the image loading and caching process.

Universal Image Loader 最佳解析

A powerful image downloading and caching library for Android

Picasso 最佳解析

Fresco 是一個強大的圖片加載組件。

    Fresco 中設計有一個叫做 image pipeline的模塊。它負責從網絡，從本地文件系統，本地資源加載圖片。為了最大限度節省空間和CPU時間，它含有3級緩存設計（2級內存，1級文件）。

    Fresco中設計有一個叫做 Drawees 模塊，方便地顯示loading圖，當圖片不再顯示在屏幕上時，及時地釋放內存和空間占用。Fresco 支持Android2.3(API level 9) 及其以上系統。

Facebook Fresco 最佳解析

在泰國舉行的谷歌開發者論壇上，谷歌為我們介紹了一個名叫 Glide 的圖片加載庫，作者是bumptech。 這個庫被廣泛的運用在google的開源項目中，包括2014年google I/O大會上發布的官方app。

Glide 最佳解析

An asynchronous, callback-based Http client for Android built on top of Apache"s HttpClient libraries.

Asynchronous Http Client for Android 最佳解析

AndroidAsync is a low level network protocol library. 

    If you are looking for an easy to use, higher level, Android aware, http request library, check out Ion (it is built on top of AndroidAsync). 

    The typical Android app developer would probably be more interested in Ion.

AndroidAsync 最佳解析

OkHttp是一個高效的Http客戶端，有如下的特點：

  支持HTTP2/SPDY黑科技
  socket自動選擇最好路線，并支持自動重連
  擁有自動維護的socket連接池，減少握手次數
  擁有隊列線程池，輕松寫并發
  擁有Interceptors輕松處理請求與響應（比如透明GZIP壓縮,LOGGING）
  基于Headers的緩存策略

OkHttp3 最佳解析

A type-safe REST client for Android and Java

Retrofit 最佳解析

Android Volley是Google開發的一個網絡lib，可以讓你更加簡單并且快速的訪問網絡數據。Volley庫的網絡請求都是異步的，你不必擔心異步處理問題。

Volley的優點：
　　請求隊列和請求優先級
　　請求Cache和內存管理
　　擴展性性強
　　可以取消請求

Volley 最佳解析

　　Gson is a Java library that can be used to convert Java Objects into their JSON representation. 
It can also be used to convert a JSON string to an equivalent Java object. 

    Gson can work with arbitrary Java objects including pre-existing objects that you do not have source-code of.

Gson 最佳解析

This is the home page of the Jackson Project, formerly known as the standard JSON library for Java (or JVM platform in general), or, as the "best JSON parser for Java." Or simply as "JSON for Java." 

    More than that, Jackson is a suite of data-processing tools for Java (and the JVM platform), including the flagship streaming JSON parser / generator library, matching data-binding library (POJOs to and from JSON) and additional data format modules to process data encoded in Avro, BSON, CBOR, CSV, Smile, Protobuf, XML or YAML; 

    and even the large set of data format modules to support data types of widely used data types such as Joda, Guava and many, many more.

    While the actual core components live under their own projects -- including the three core packages (streaming, databind, annotations; 

    data format libraries; data type libraries; JAX-RS provider; 

    and a miscellaneous set of other extension modules -- this project act as the central hub for linking all the pieces together.

Jackson 最佳解析

Fastjson是一個Java語言編寫的JSON處理器,由阿里巴巴公司開發。

    1、遵循http://json.org標準，為其官方網站收錄的參考實現之一。
    2、功能qiang打，支持JDK的各種類型，包括基本的JavaBean、Collection、Map、Date、Enum、泛型。
    3、無依賴，不需要例外額外的jar，能夠直接跑在JDK上。
    4、開源，使用Apache License 2.0協議開源。http://code.alibabatech.com/wiki/display/FastJSON/Home
    5、具有超高的性能，java世界里沒有其他的json庫能夠和fastjson可相比了。

fastjson 最佳解析

　　HTML Parser is a Java library used to parse HTML in either a linear or nested fashion. 
Primarily used for transformation or extraction, it features filters, visitors, custom tags and easy to use JavaBeans. 

    It is a fast, robust and well tested package.

HTML Parser

jsoup 是一款Java 的HTML解析器，可直接解析某個URL地址、HTML文本內容。

    它提供了一套非常省力的API，可通過DOM，CSS以及類似于jQuery的操作方法來取出和操作數據。

jsoup

暫缺，歡迎補充

ORMLite 最佳解析

Insanely easy way to work with Android Databases.

Sugar 最佳解析

greenDAO is a light & fast ORM for Android that maps objects to SQLite Being highly optimized for Android, greenDAO offers great and consumes minimal memory.

greenDAO 最佳解析

ActiveAndroid is an active record style ORM (object relational mapper). 

    What does that mean exactly? 

    Well, ActiveAndroid allows you to save and retrieve SQLite database records without ever writing a single SQL statement. 

    Each database record is wrapped neatly into a class with methods like save() and delete().

ActiveAndroid 最佳解析

A lightweight wrapper around SQLiteOpenHelper and ContentResolver which introduces reactive stream semantics to queries.

SQLBrite 最佳解析

Realm 是一個跨平臺的移動數據庫引擎，于 2014 年 7 月發布，準確來說，它是專門為移動應用所設計的數據持久化解決方案之一。

Realm 最佳解析

Field and method binding for Android views which uses annotation processing to generate boilerplate code for you.

Butter Knife 最佳解析 最佳解析(8.+)

Dagger2 是一個Android依賴注入框架，由谷歌開發，最早的版本Dagger1由Square公司開發。

    依賴注入框架主要用于模塊間解耦，提高代碼的健壯性和可維護性。

    Dagger這個庫的取名不僅僅來自它的本意“匕首”，同時也暗示了它的原理。

    Jake Wharton 在對 Dagger 的介紹中指出，Dagger 即DAG-er，這里的 DAG 即數據結構中的 DAG——有向無環圖(Directed Acyclic Graph)。

    也就是說，Dagger是一個基于有向無環圖結構的依賴注入庫，因此Dagger的使用過程中不能出現循環依賴。

Dagger2 最佳解析

AndroidAnnotations is an Open Source framework that speeds up Android

　　1,It takes care of the plumbing, and lets you concentrate

    2,what"s really important. By simplifying your code, it facilitatesits maintenance.

AndroidAnnotations Wiki

RoboGuice 3 smoothes out some of the wrinkles in your Android development experience and makes things simple and fun. 

    Do you always forget to check for null when you getIntent().getExtras()? RoboGuice 3 will help you. 
    
    Think casting findViewById() to a TextView shouldn’t be necessary? RoboGuice 3 is on it.

RoboGuice3 最佳解析

WilliamChart is an Android Library to help the implementation of charts in android applications. 

    For the ones that would like to contribute, my idea is not only to implement the conventional chart features but instead something that could be pleasant and intuitive while representing and visualizing data. 

    I would prefer to keep charts simple and clean rather than overfeatured.

WilliamChart 最佳解析

Charting library for Android compatible with API 8+(Android 2.2). Works best when hardware acceleration is available, so API 14+(Android4.0) is recommended. Apache License 2.0.

HelloCharts for Android 最佳解析

MPAndroidChart是一款基于Android的開源圖表庫，MPAndroidChart不僅可以在 Android設備上繪制各種統計圖表，而且可以對圖表進行拖動和縮放操作，應用起來非常靈活。

MPAndroidChart同樣擁有常用的圖表類型：線 型圖、餅圖、柱狀圖和散點圖。

MPAndroidChart 最佳解析

Tape是速度非快，事務性，基于文件的FIFO。用于Android和Java平臺。

Tape

Android Priority Job Queue是一款專門為Android平臺編寫，實現了Job Queue的后臺任務隊列類庫，能夠輕松的在后臺執行定時任務，提高用戶體驗和應用的穩定性。

Android Priority Job Queue

EventBus是一個Android端優化的publish/subscribe消 息總線，簡化了應用程序內各組件間、組件與后臺線程間的通信。

比如請求網絡，等網絡返回時通過Handler或Broadcast通知UI，兩個 Fragment之間需要通過Listener通信，這些需求都可以通過EventBus實現。

EventBus 最佳解析

An enhanced Guava-based event bus with emphasis on Android support.

Otto is an event bus designed to decouple different parts of your application while still allowing them to communicate efficiently.

Forked from Guava, Otto adds unique functionality to an already refined event bus as well as specializing it to the Android platform.

Otto 最佳解析

Android specific bindings for RxJava.

This module adds the minimum classes to RxJava that make writing reactive components in Android applications easy and hassle-free. More

specifically, it provides a Scheduler that schedules on the main thread or any given Looper.

RxAndroid 最佳解析

RxJava binding APIs for Android UI widgets from the platform and support libraries.

RxBinding 最佳解析

Agera is a set of classes and interfaces to help write functional, asynchronous, and reactive applications for Android.

Agera 最佳解析

Simple, pretty and powerful logger for android

Logger provides :
   Thread information
   Class information
   Method information
   Pretty-print for json content
   Pretty-print for new line "
"
   Clean output
   Jump to source

Logger

Annotation-triggered method call logging for your debug builds.

Hugo

This is a logger with a small, extensible API which provides utility on top of Android"s normal Log class.

Timber

Tasty mocking framework for unit tests in Java

Mockito 最佳解析

Robotium是一款國外的Android自動化測試框架，主要針對Android平臺的應用進行黑盒自動化測試，它提供了模擬各種手勢操作（點擊、長按、滑動等）、查找和斷言機制的API，能夠對各種控件進行操作。

Robotium

Robolectric is a testing framework that de-fangs the Android SDK so you can test-drive the development of your Android app.

Robolectric 最佳解析

Stetho is a sophisticated debug bridge for Android applications. 

When enabled, developers have access to the Chrome Developer Tools feature natively part of the Chrome desktop browser. 

Developers can also choose to enable the optional dumpapp tool which offers a powerful command-line interface to application internals.

Stetho 最佳解析

A memory leak detection library for Android and Java.

LeakCanary 最佳解析

ACRA is a library enabling Android Application to automatically post their crash reports to a GoogleDoc form.
 
It is targeted to android applications developers to help them get data from their applications when they crash or behave erroneously.

ACRA Wiki

至此，結束，如果有哪里寫錯的或者有什么疑問歡迎回帖，我看到后會第一時間回復。

by anonymous