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Analysis of Android application message processing mechanism Chinese WORD version

Android applications are driven by messages. The system maintains a message queue for each application. The main thread of the application continuously obtains messages from this message queue (Looper), and then processes these messages (Handler). , In this way, the execution of the application is driven by messages. This article will analyze the message processing mechanism of Android applications in detail. Friends in need can download and take a look

2024-02-28 0 1091
Discuz plug-in production tutorial [Getting Started + Mastery + Practical] Chinese WORD version

Plug-in mechanism Discuz! has a complete plug-in mechanism. By rationally using the plug-in mechanism, you can better integrate your individual functional requirements into the Discuz! product while keeping the code independent and not affected by subsequent Discuz! product version upgrades. We encourage and recommend the use of plug-in mechanisms for customization and research and development of individual needs. Interested friends can come and take a look

2024-01-29 0 932
Android platform Overlay mechanism Chinese WORD version

This document mainly talks about the Android platform Overlay mechanism; the Android overlay mechanism allows you to customize the resource files in the framework and package without modifying the apk in the package to achieve resource customization. To achieve the purpose of displaying different UI (such as MIUI). I hope this document will help friends in need; interested friends can come and take a look.

2024-02-28 0 838
Design of virtual instrument based on USB and LabVIEW word version

The interface technology of virtual instruments and USB has received close attention in the field of instrument research and development. The use of USB interfaces for intelligent peripherals for data acquisition and control has improved its bottleneck phenomenon and also strengthened its "affinity" with general-purpose computers. Ordinary MCS-51 The microcontroller does not have a USB interface, and LabVIEW, one of the virtual instrument application software development platforms, does not provide a driver for the USB interface. For this reason, the design principles of virtual instruments based on USB and LabVIEW and the USB development method are introduced, and a method of USB development is proposed.

2024-01-28 0 1145
Android Google mobile programming tutorial PDF version

Android Google Mobile Phone Programming Tutorial Traditional Edition, the content of the book is mainly related to the knowledge of Google mobile operating system, introduces the principles and methods of programming on the Google mobile platform, and guides Google programmers into the Google Phone in the form of examples. The palace of programming art.

2024-02-27 0 1065
Proverbs of Programmers chm version

This book is a summary of the author's technology and experience in more than ten years of programming career. The content covers everything from understanding the operating mechanism of CPU, Windows, and programming language to code specifications and styles, analysis methods, debugging methods and kernel optimization. It contains the author's cognitive process and thorough analysis of many issues, as well as excellent and a wonderful programming experience.

2024-01-19 0 1204
Android application framework principles and programming 36 techniques pdf traditional version

Android application framework principles and programming techniques 36 pdf traditional version, the book content is suitable for Android 1.0. Some friends may not be familiar with Android yet, right? Have you ever heard of Google’s customized high-end mobile phone from HTC? Its operating system is based on Android. If you are still not sure about it, you can Google "HTC g2" mobile phone to get a rough understanding of the interface and architectural features of the mobile operating system. Anyway, Andro

2024-02-26 0 721
Git version control and workflow Chinese WORD version

This article is a summary of git version control and workflow. If some friends have not used git before and are not very familiar with the basic concepts and commands of git, you can start with the following basic tutorials: Git is a distributed version control system, and Compared with centralized version control systems similar to SVN, although centralized version control systems can enable multiple team members to collaborate on development, sometimes if the central server goes down, no one can submit updates and collaborate on development during the downtime. Even sometimes, if the central server disk fails and there happens to be no backup or the backup is not timely, then there may be losses.

2024-02-27 1 1003
Basic knowledge of PLC programming Chinese doc version

Programmable controller, called Programmable Controller in English, or PC for short. However, because PC is easily confused with Personal Computer (Personal Computer), people are still accustomed to using PLC as the abbreviation of programmable controller. It is an electronic system device with a microprocessor as the core for digital operation. It is specially designed for industrial field applications. It uses programmable memory to store and execute logical operations, sequence control, timing/ Operation instructions such as counting and arithmetic operations, and through digital or analog input

2024-02-29 0 958
Detailed explanation of the use of AsyncTask in Android Chinese WORD version

There are two ways to implement asynchronous task mechanism in Android, Handler and AsyncTask. This document mainly describes the use of AsyncTask in Android; I hope this document will help friends in need; interested friends can come and take a look

2024-02-26 0 611
MATLAB language and control system simulation experiment Chinese WORD version

"MATLAB Language and Control System Simulation Experiment" includes four parts: MATLAB language basics, MATLAB language basic experiments, control theory simulation experiments and experimental assignments. Each student is required to complete the experimental assignments independently after completing the prescribed experimental content to consolidate knowledge and enhance application capabilities. Interested friends can come and take a look

2024-01-18 2 2111
Flash CS3 animation production basic tutorial lesson plan Chinese WORD version

Flash is a classic and excellent vector animation editing software launched by Adobe. The size of animations produced using this software is much smaller than that of bitmap animation files (such as GLF animations). Users can not only add sound and video to animations and bitmap images, you can also create interactive movies or fully functional websites. This software does not require high computer knowledge of animators, is simple and easy to learn, and has smooth and vivid effects. It is a very suitable software for beginners in animation production. Before learning to create animations, through the study of this chapter, readers should be familiar with the characteristics of Flash animations

2024-01-17 0 1140
Android sensor programming Chinese WORD version

This document mainly talks about Android sensor programming; a sensor is a physical device or biological organ that can detect and feel external signals, physical conditions (such as light, heat, humidity) or chemical composition (such as smoke), and will detect Information is passed to other devices or organs. At the same time, it can also be said that the sensor is a detection device that can sense the information being measured, and can transform the detected information into electrical signals or other required forms of information output according to certain rules to meet the needs of information transmission and Requirements for processing, storage, display, recording and control. It is the first to realize automatic detection and automatic control

2024-02-27 0 504
QML introductory tutorial Chinese WORD version

This document mainly talks about the introductory tutorial of QML; QML is a descriptive scripting language, and the file format ends with .qml. The syntax format is very similar to CSS (refer to the specific examples below), but it also supports programming control in JavaScript form. It combines the advantages of QtDesigner UI and QtScript. QtDesigner can design .ui interface files, but does not support interaction with Qt's native C++ code. I hope this document will help friends in need; interested friends can come and take a look.

2024-01-31 0 695
Spark Streaming Programming Guide Chinese WORD version

Spark Streaming is the core API of Spark, which supports high throughput and fault-tolerant real-time streaming data processing. It can accept data sources from Kafka, Flume, Twitter, ZeroMQ and TCP Socket, use simple API functions such as map, reduce, join, window and other operations, and can also directly use built-in machine learning algorithms and graph algorithm packages to process data . Interested friends can come and take a look

2024-02-27 0 908
Audio and video development tutorial in android Chinese WORD version

The media package provides classes to manage various media types. These classes are provided for performing audio and video operations. In addition to basic operations, it also provides ringtone management, facial recognition, and audio routing control. This article explains audio and video operations. This article is designed for beginners who want a simple introduction to Android programming. This article will guide you through the step-by-step development of applications that use media (audio and video). This article assumes that you have installed Android and the necessary tools to develop applications. It also assumes that you are familiar with Java or have a grasp of object-oriented programming concepts. Interested friends

2024-02-26 0 1133
Features of Matlab language Chinese WORD version

This document mainly describes the characteristics of the Matlab language; Matlab has the advantages of simple usage, flexibility, strong program structure, and good scalability. It has gradually become the preferred language tool in scientific computing, view interaction systems, and programs. In particular, it has outstanding performance in linear algebra, mathematical statistics, automatic control, digital signal processing, dynamic system simulation, etc., and has become a useful weapon for scientific research staff and engineering technicians to conduct scientific research and production practice. I hope this document will help friends in need; interested friends can come and take a look.

2024-01-18 1 1874
Subversion Installation and Instructions Document WORD Version

This document mainly describes the installation and use instructions for Subversion; Subversion is a free/open source version control system that is gradually replacing CVS. Subversion's repository can be accessed through the network, allowing users to operate on different computers. Subversion supports versioned directories, true version history, atomic commits, versioned dataless, an optional network layer, consistent data operations, efficient branch and tag operations, and modifiability. I hope this document will help those in need; those who are interested

2024-02-28 0 811
Android AsyncChannel source code analysis WORD version

This document mainly talks about the analysis of Android AsyncChannel source code; the AsyncChannel class is used to handle asynchronous message passing between two Handlers. The Handler for message passing can be from the same process or in different processes. Handler message passing between different processes Implemented using Android's Binder communication mechanism. I hope this document will help friends in need; interested friends can come and take a look.

2024-02-27 0 569
Git Reference Manual Chinese CHM version

Git is a free, open source distributed version control system for agile and efficient handling of any project, small or large. Git's work requires code that calls curl, zlib, openssl, expat, libiconv and other libraries. Git currently supports Linux/Unix, Solaris, Mac and Windows platforms. This article brings you the Git reference manual, you can download it if you need it!

2024-01-30 0 1231