android framework

1. Understand two concepts: Abstraction and Derivation Abstraction: Extracts commonalities from similar things and obtains a similar structure. Derivative: Based on the abstract structure, add other functions to get specific things. 2. System OS, framework, and ApplicationProgram, Relationships between users When a user operates a software program, there is actually another layer in the middle, that is, the system. For example, when a user

Teach you to write the basic architecture of the Android network framework. For more information, see [Mr. Simple blog ].I am participating in the blog star. Click here to vote for me. Thank you ~ Preface some time ago, I accidentally participated in the selection of the blog star and accidentally entered the Development Group of the famous bloggers Hongyang and Ren yugang. I felt a strong atmosphere of tec

Reprint please the head source link and the tail two-dimensional code together reproduced, this article from:http://blog.csdn.net/hejjunlin/article/details/52435789In the preceding sections, all are called through the Java layer to JNI, and jni down to the C + + layer does not introduceLook at the Java layer a method in the C + + layer MediaPlayer follow-up processFrameworks/av/media/libmedia/mediaplayer.cppFind a familiar Setdataresource method to see the process of C/s mode, also refer to the

Principle of SMS ReceivingAbout the Android operating system text message receiving and sending the article online there are a lot of, but really clear not much, this blog is well written. In fact, to really understand the Android operating system text message flow, or Linus that sentence: Read the fucking source code. OhIn the Android operating system, most of t

Android quick development framework xUtilsIntroduction to xUtils XUtils contains many practical android tools. XUtils supports uploading large files, more comprehensive http request protocol support (10 predicates), more flexible ORM, more event annotations supported and not affected by obfuscation... XUitls is least compatible with

Android Small plugin framework Source analysis Directory OverviewSmall how to usePlug-in loading processAreas to be improved I. OverviewSmall is a very concise written plug-in framework, engineering source location: Https://github.com/wequick/SmallPlug-in solution, in the final analysis to solve the core problem only three: 1.1 Load

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We know that the Android application is mainly through the client-server way of data interaction, generally in the app development may be an interface corresponding to a display module, this design will make the client update is cumbersome. To solve this problem, the usual practice is to define the protocol with the server, design the display mode, in order to achieve the purpose of updating the UI in real time, adding or removing the display module w

other factors, the resulting audio files may have a certain degree of distortion, in addition, audio and video codec can be done by pure software, but also by the use of specialized hardware chip to complete. Playback process Remove the relevant files from the storage device and decode them according to the encoding used in the recording process. The audio system selects the final matching audio playback device for this playback instance. The decoded data is transmitted th

Android from hardware to application: Compile the hardware service at the APP testing framework layer (complete) Create an Android Application Project: Use the Android plug-in ADT of Eclipse to create an Android project named Gpio. After the project is created, copy the proj

Ym-Android network framework Volley (final), androidvolley If you have never used Volley, let's take a look at the Android network framework Volley (experience) and Android Network Framework Volley (practice) in this article to be

In the previous blog, "Build Android ORM Framework Opendroid (iv)--Elegant Delete data", we describe how opendroid gracefully removes data from the database, and can see Opendroid's design is so simple, In fact, Opendroid is just me as an interest or to hold the attitude of trying to write, of course, it certainly has a lot of shortcomings, but this does not affect us to understand an ORM

codec can be completed by pure software, you can also use dedicated hardware chips. Playback Process Extract related files from the storage device and perform Decoding Based on the encoding method used in the recording process. The audio system selects the final matching audio playback device for the playback instance. The decoded data is transmitted through the path designed by the audio system. The audio data signal is transformed into a analog signal through a digital-to-a

This article analyzes how mediaplay calls opencore In the android multimedia framework from the perspective of code. SummaryFor the android Multimedia Framework, Google has implemented stagefright in Android 2.2, but opencore is retained;In the new version 2.3, opencore was

Just wrote a blog, mentioned in the use of xutils a problem encountered in the Android Xutils framework Httputil GET request cache problem, since the problem has been raised, then I think about the previous use of xutils encountered a few small problems to tidy up.One, Httputil GET request cache problemWith regard to the GET request method for the HTTP module of the Xtuls

ObjectiveIn the first two blogs of the "teach you to write Android network framework" column, we have introduced the basic structure of the simplenet framework, as well as the implementation of request, Response, requests queue, and why design What is the consideration of this design? The first two blogs have introduced the various roles, and today we are going

"Framework" PHP do back-end data processing for Android Company to develop an Android SNS application, PHP to do backend. Includes registration, login, photo, chat, post, etc... This data is done by PHP. I would like to ask, such an application, PHP, with what framework good? How to do it? ------Solution------------

Can I fix bugs online without releasing Android? -- AndFix framework I have introduced a framework named Alibaba dexposed, which can dynamically complete some patches online. However, because of its performance and compatibility (not supporting ART), many friends decided not to study this framework. Today, I will

"Framework" PHP do back-end data processing for Android Company to develop an Android SNS application, PHP to do backend. Includes registration, login, photo, chat, post, etc... This data is done by PHP. I would like to ask, such an application, PHP, with what framework good? How to do it? ------Solution------------

Hello, everyone. Today is New Year's Day. Wish you a happy holiday! Today we will share with you the UI framework of apad Qzone. The interaction diagram is as follows: Figure 1: interaction. It can be seen that the UI framework of the entire application is relatively simple and can be divided into two parts: the left navigation bar and the right content area. When we click on the left navigation bar, the c