Course Introduction：Optimizing the performance of H5 streaming media requires four aspects: encoding format, coding rate adaptation, load optimization and player interaction. 1. Select encoding formats widely supported by H.264 and AAC and set a reasonable bit rate according to network conditions; 2. Use HLS or DASH to achieve adaptive switching of multi-bit rate; 3. Control the loading time of the first screen to accelerate I-frame optimization and lazy loading strategy within 1 to 2 seconds; 4. Improve the player behavior, including automatic playback processing buffering strategy adjustment error prompt mechanism and adding playsinline attribute to avoid forced playback on full screen.
2025-07-21 comment 0 948
Course Introduction：The H5 video player's control bar and user experience can improve flexibility and brand consistency through custom design. 1. The custom control bar needs to hide native controls, and use HTML CSS to build a UI, combining JavaScript to realize playback, pause, volume, progress and other functions. The basic components include playback/pause buttons, progress bars, time display, volume control and full-screen switching buttons. 2. The key points of improving interactive experience include optimizing the progress bar drag and click jump logic, using localStorage to save the volume state, and adapting to the full-screen mode style. 3. Mobile optimization should be muted by default and provide an unmute button, ensure that the operation area is large enough, design advanced interaction reasonably, avoid overlaying too much floating layer, and add webk
2025-07-16 comment 0 317
Course Introduction：The key to cross-platform H5 mobile applications is compatibility and performance optimization. 1. Choose a suitable development framework, such as Vue is suitable for small and medium-sized projects, React is more suitable for large projects, combined with Cordova or Capacitor to achieve a native experience; 2. Use flex rem, vw/vh or PostCSS plug-ins to solve adaptation problems, and deal with common problems such as high-definition screen borders, content overflow and horizontal and vertical screen switching; 3. Performance optimization includes image compression, CDN acceleration, caching strategy, reducing DOM operations and HTTP requests, and evaluate the optimization effect through Lighthouse tools; 4. Use fastclick, Modernizr and other tool libraries to handle platform differences, the same
2025-07-16 comment 0 405
Course Introduction：This article explains the advanced techniques and optimization strategies of WebGL in depth, aiming to improve 3D graphics rendering performance and development efficiency. First of all, it is crucial to understand the mechanism of WebGL as a state machine. Properly managing state switching, avoiding frequent enable/close functions, and using encapsulation functions to control states can reduce errors and improve performance. Secondly, the post-processing effect is achieved through frame buffering (FBO). The steps include creating and binding the frame buffer, attaching colors and depth textures, rendering the scene to texture, and then post-processing on the full-screen quadrilateral, which is suitable for blur, glow, HDR and other effects. Third, using glslify and other tools to organize GLSL code, modular common functions such as Phong lighting model, and unified management of shader compilation process will help
2025-07-20 comment 0 732
Course Introduction：SqlParameter Parameters.Add vs. AddWithValue: Choosing the Best MethodWhen working with SQL commands, you may encounter the need to add...
2025-01-10 comment 0 694
Course Intermediate 10708
Course Introduction：Nowadays, full-screen switching animation effects are very popular, whether on PC or mobile, such as product display, special topics and other scenes. Then let us study the "Practical Video Tutorial on Implementing Full-Screen Switching Effect" to understand how to achieve it!
Course Elementary 13816
Course Introduction：Scala Tutorial Scala is a multi-paradigm programming language, designed to integrate various features of object-oriented programming and functional programming.
Course Elementary 82348
Course Introduction："CSS Online Manual" is the official CSS online reference manual. This CSS online development manual contains various CSS properties, definitions, usage methods, example operations, etc. It is an indispensable online query manual for WEB programming learners and developers! CSS: Cascading Style Sheets (English full name: Cascading Style Sheets) is an application used to express HTML (Standard Universal Markup Language).
Course Elementary 13171
Course Introduction：SVG is a markup language for vector graphics in HTML5. It maintains powerful drawing capabilities and at the same time has a very high-end interface to operate graphics by directly operating Dom nodes. This "SVG Tutorial" is intended to allow students to master the SVG language and some of its corresponding APIs, combined with the knowledge of 2D drawing, so that students can render and control complex graphics on the page.
Course Elementary 24624
Course Introduction：In the "AngularJS Chinese Reference Manual", AngularJS extends HTML with new attributes and expressions. AngularJS can build a single page application (SPAs: Single Page Applications). AngularJS is very easy to learn.
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