Is UniApp native or Webview based?

UniApp is a cross-platform development framework based on Vue.js. It can help developers quickly build applications that support multiple platforms simultaneously based on code written once. During the use of UniApp, many developers will wonder, is UniApp native or based on Webview? This article will answer this question in detail.

First of all, we need to understand what native applications and Webview applications are. Native apps are programs built by writing native code on mobile devices that users can install and download from app stores. Webview applications refer to applications developed based on H5 technology and run in a browser-like container. Users need to access the website by opening the URL or scanning the QR code.

So, what type of application is UniApp? The answer is that UniApp supports both native and Webview application forms. When UniApp is started, it will automatically select different startup methods according to the platform environment. For platforms that support native applications (such as iOS and Android), UniApp will unpack the H5 code locally and use native WebView or WKWebView to load and execute the application. For platforms that do not support native applications (such as mini programs and H5 sites), UniApp will run the application directly in Webview.

The advantage of this technology implementation is that UniApp can support multiple platforms without additional development work, which can greatly improve development efficiency and application promotion scope. Moreover, UniApp uses a unified code architecture, which allows developers to share a set of codes on different platforms, greatly simplifying development difficulty and workload.

It is worth mentioning that on platforms that support native applications, UniApp will deeply integrate applications with the platform as much as possible to provide a better user experience and higher performance. For example, on the iOS platform, WKWebView used by UniApp can have better control over local caching, improving the application's page loading speed and response speed.

Of course, UniApp also has some limitations. Since the core code of UniApp is based on H5, there is still some gap in performance compared with native applications. For example, in some scenarios that require high performance and low latency, native applications are still better. However, as the performance of mobile devices and network fluency continue to improve, these gaps are getting smaller and smaller.

To sum up, UniApp supports both native and Webview application forms. This technical implementation allows developers to use the same set of code on different platforms, which can greatly expand the scope of application promotion while improving development efficiency. Of course, for some scenarios that require high performance and low latency, native applications are still a better choice. UniApp is suitable for developing lightweight applications and small and medium-sized projects, and needs to be selected according to specific circumstances.

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