WeChat Mini Program is a lightweight application development platform launched by Tencent. It is mainly used on mobile terminals and aims to provide a convenient user experience. It can be used within WeChat without downloading and installation. This compressed package contains rich source code resources, covering application scenarios in multiple fields. The following will introduce the knowledge points involved one by one.
1. Image display: This part of the source code may involve the use of the `` component in the WeChat applet for displaying images, and the `wx.getSystemInfo` interface to obtain the screen size and implement image adaptation and responsive layout. It may also include a lazy loading strategy for images to improve page loading speed.
2. Takeout ordering: The takeout ordering function usually requires the use of `wx.request` of the WeChat applet for server data interaction to realize product list display, shopping cart operation, order creation and payment. The APIs involved include `wx.chooseLocation` for selecting an address, `wx.getSetting` to check the user authorization status, `wx.pay` to initiate a payment request, etc.
3. Gadget category: This type of source code may contain various practical small functions, such as calculators, date and time pickers, etc., mainly using the development of custom components (``), as well as event binding and data transfer mechanisms.
4. Mini games: The development of mini games requires the use of the game framework of WeChat mini programs, which may include physics engines, animation effects, touch event processing, etc. For example, use `wx.createSelectorQuery` to query nodes, and combine it with `wx.createAnim` to create animation effects to achieve game interaction.
5. Performance Expo: This part may involve the display of performance information, such as music, drama, exhibitions, etc. It may use `wx.showModal` pop-up prompts, `wx.loadFontFace` to dynamically load fonts, and map APIs such as` wx.openMap` to display geographical location.
6. News information: News applications usually need to update content in real time, involving network requests, data parsing (such as JSON format), list scrolling optimization (virtual list `wx.createIntersectionObserver`) and other technologies. At the same time, there may be a comment function that needs to handle user input and display comments.
7. Medical care: This part may cover functions such as appointment registration, health consultation, etc., involving the protection of user personal information and privacy policy, as well as `wx.login` to obtain user login status, `wx.getUserInfo` to obtain user information, etc.
8. Art life: This may include art work display, event registration, etc., which may use playback control of multimedia resources (such as audio and video), as well as form submission and payment functions.
The source code collection in this compressed package covers multiple core knowledge points in WeChat applet development, including but not limited to UI components, network requests, data management, user interaction, map services, multimedia processing, payment functions, etc., which is very useful for learning and understanding. WeChat applet development is of high value. Developers can improve their mini program development skills by studying these source codes.