Can UniApp’s iOS App be hot updated?

UniApp is a development framework for multiple platforms. It can use one code to run on iOS, Android and Web platforms at the same time. Developers can develop cross-platform applications more efficiently. Hot updates are also a very common requirement during the development process.

Then the question is, can UniApp’s iOS App be hot updated? This is actually a more complex issue. Let’s take a look at it from several aspects.

What is hot update?

Hot update refers to a way to update and repair the APP without the user having to manually update the APP. The difference between hot update and ordinary application update is that hot update does not require users to open the app store to update the application. Instead, it obtains the update package directly from the server to realize automatic update of the application.

Hot update method of UniApp

Hot update in UniApp is generally implemented in two ways:

1. HBuilderX comes with a hot update function

HBuilderX is a cross-platform development tool launched by DCloud and is fully compatible with UniApp. HBuilderX provides hot update configuration options when packaging the App. After the App is packaged, it can produce a hot update patch package for it. By deploying the patch package in the server, the app can be dynamically updated.

2. The APP uses the uni-updater component to update during the running process.

uni-updater is an update framework officially provided by UniApp to assist the application in achieving additional update requirements (if it has its own update server, etc.). It can be easily used in applications and is a better choice for developers who need to flexibly customize update functions.

iOS system limitations

Although UniApp’s built-in hot update function can be used, please pay attention to the limitations of the iOS platform. Apple's official policy is to prohibit iOS apps from downloading code or packages themselves for updates. Once the rules are violated, the application will be removed from the shelves.

How to solve iOS platform limitations?

Based on the limitations of the iOS platform, UniApp’s hot update solution requires setting up a server to deploy automatic hot update patch packages. Although the hot update system will automatically detect whether the app has been updated and then provide a new patch package, developers still need to download and install it manually. Moreover, due to Apple's restrictions, the download package must first undergo official review and cannot be downloaded directly, which also brings some inconvenience to the operation of the App.

So, hot updating on the iOS platform is a tricky thing, and it may cause some unnecessary problems if you are not careful. When using UniApp for development, developers need to understand the limitations of the iOS platform, choose an update plan appropriately, and ensure that their applications comply with relevant policies.

Summary:

Hot updates on UniApp’s iOS platform require attention to many issues, such as: limitations of the iOS platform, server setup, download and installation, etc. Despite these problems, we can still achieve hot update requirements on other platforms through UniApp's own hot update function and uni-updater component. If you need to implement hot updates on the iOS platform, it is recommended that developers choose their plan carefully to ensure that they do not violate relevant regulations and ensure the normal operation of their applications.

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