WeChat applet development technology

The WeChat Mini Program is an application developed on the basis of the WeChat platform. The installation of this program is different from other applications. It can be used without downloading and installing. You only need to search for the name of the application you need in the WeChat search bar or scan The QR code of this functional program can be used, and the use of this small program will not occupy memory, which is very fast and convenient. In fact, the WeChat applet appeared as early as early October 2016. At that time, it was undergoing internal performance debugging by scientific research and technical personnel. Its instant birth attracted the attention of the entire mobile Internet industry. In terms of basic functions, WeChat applets are still very powerful, including message notification, official account association, history list, conversation sharing, offline code scanning, search and search, and switching between applets. And it affects tens of millions of mobile users. With the acceleration of information technology upgrading, the functions of small programs are also constantly being upgraded. Therefore, for some APPs with high development and promotion costs and high mobile phone traffic charges, WeChat applets can be easily solved, reducing the difficulty of these two problems, and can also provide some high-frequency applications. New choices lead the development and progress of the times.

Therefore, this article will systematically analyze a series of issues related to the development of WeChat applets, explore the key technologies involved and the system organization structure, and explain its future development prospects and problems to be faced. Provide necessary information support in terms of basic theory and technical application.

1. Some key technologies for developing WeChat applets

In the development process of WeChat applets, some important technologies will be involved, which require developers to master them. Among them, the more common and convenient ones are that developers do not need complicated designs and calculations. The development of the mobile client can be quickly switched to the development of small programs. Its specific main technologies are as follows:

1. Obtaining the WeChat Mini Program ID

In order to check the ID of the WeChat Mini Program, the user needs to be able to log in to the Mini Program development account provided by him to find it, because under certain conditions of WeChat, the developer cannot check the ID of the subscription account and some service accounts. Use it directly, and then set it in the developer options in the mobile app. If the developer does not use the WeChat ID of the registered administrator, it also needs to be bound to the developer. That is to say, in the user identity developer module, it is enough to bind the WeChat ID that needs to experience the applet.

2. Establishment of WeChat Mini Program Project

To create a WeChat Mini Program project, the developer needs to edit the code and the creation of the Mini Program based on the development tool, which generally includes the following steps:

(1) Firstly, download and install the developer tool, open it and log in by scanning the code.

(2) Select the creation of the project, then fill in the ID number that has been obtained, and set the name of the project, and store the written code directory under a certain folder on the computer hard disk.

(3) If an empty folder is selected for creation, the developer tool will automatically prompt and then generate a simple demo.

(4) After the project is successfully created, the project can be edited in the navigation bar of the developer tool system.

3. Wechat applet code writing

In the navigation bar of the successfully created developer tool system, some relatively simple code texts have appeared. Among them, the more important three code files are app.wxss, app.json and app.js. It is worth explaining that , the file with the .json suffix is the configuration file, the .js suffix is the script file, and the .wxss suffix is the style sheet file.

4. Establishment of WeChat Mini Program page

Finally, I entered the most critical part of WeChat applet development-the establishment of the page. Pages usually include logs and index, that is, the so-called display page for starting the applet and the welcome page after opening the program, all of which are under the pages directory. It should be noted that each applet page will consist of four different suffix files with the same name, and these four suffix files are: inde.xwxml, index.js, in-dex.json and index. wxss. In the page organization structure of the log, the log page will use <block/> to control the markup before organizing the code, and bind the <block/> log data with wx:for-items, and finally put the data on the expanded node Record.

2. The system organization structure of WeChat applet development

The development of WeChat applets must have an organizational framework, so that the design and development work can be carried out conveniently. Usually, the program is carried out under the MINA framework. The MINA framework is a communication network application system running on the basis of Java technology. It can not only select the thread model according to the user's functional requirements, but also develop more highly scalable network communication, etc., specifically.

The complexity of the MINA framework in the application is mainly reflected in several modules in the system framework, for example, the main function of Lo Handler is to process the information transmitted by the client; Lo Service is used as the input port of the program , which is mainly used to call threads, etc.; LoFilter is a commonly used filtering device, such as filter compression, filter blacklist, SSL encryption and log records, etc., which can filter some data sent to customers or some customers Filtering is requested. In addition to the complexity of the system, there is also a certain degree of flexibility. For example, in the process of use, developers can flexibly formulate various encoding methods, logging and encryption algorithms under certain requirements. These operations can be Serve more application scenarios in the needs of most users.

3. Analysis and Prospect of WeChat Mini Programs

Compared with some common Android operating system applications on the market, WeChat Mini Programs have remarkable features, such as low cost, easy development, and fast response, etc., and are constantly winning wide recognition from users and the market. According to the needs of some users, after analysis, there are problems such as the programs that usually appear in the APP are not innovative, do not want to use them after a period of time, some programs are not used for a long time, and the APP occupies a large amount of mobile phone memory, etc. , it will be easily solved in the WeChat applet, and can be effectively solved. Most users still have a soft spot for WeChat applets, which have great market prospects; for developers, it is both an opportunity and a There are also challenges. For the development of small programs, developers can develop lower-cost applications at the fastest speed and in the shortest time. This is their golden age and provides a huge and broad platform.

However, this also poses a challenge to them. They must emphasize technological innovation and improve the quality and professional skills of developers. Only in this way can they develop products with higher quality and excellent performance. For some small and micro enterprises, the emergence of WeChat mini-programs has brought them great changes. Due to the small scale of these enterprises, the number of personnel is not large, and the funds are not very sufficient, the emergence of small programs can offset their own shortcomings, respond more flexibly to the market, and develop products that are suitable for themselves and the market. Small programs for user needs to promote the development of enterprises.

The above is the system realization and prospect of WeChat mini-program development introduced by Shenzhen Zuchuang Microelectronics Co., Ltd. for you. If you have software and hardware function development needs for smart electronic products, you can rest assured to entrust them to us. We have rich experience in customized development of electronic products, and can evaluate the development cycle and IC price as soon as possible, and can also calculate PCBA quotations. We are a number of chip agents at home and abroad, including MCU, voice IC, Bluetooth IC and modules, wifi modules. We have hardware design and software development capabilities. Covering circuit design, PCB design, single-chip microcomputer development, software custom development, APP custom development, WeChat official account development, voice recognition technology, Bluetooth wifi development, etc. It can also undertake the research and development of smart electronic products, the design of household appliances, the development of beauty equipment, the development of Internet of Things applications, the design of smart home solutions, the development of TWS solutions, the development of Bluetooth audio, the development of children's toys, and the development of electronic education products.