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Multitasking implementation in iPhone / iOS4 web application

I am looking to create a web application that implements background sound and quick switching applications. These functions work out of the box when they run like regular Safari web pages, but as soon as you add a tag that supports the web application and try to run it in full screen mode, this function breaks.

I did some testing, and even the most basic web application will restart every time you switch to it. And, seeing that this is a web application, we cannot accurately implement the multitasking API. Has anyone found a job around?

This is not a transaction breaker, as you can simply avoid full-screen mode, but then you will also lose the ability to use your own icon in the application tray. Perhaps this explains the lack of full-screen mode in the new YouTube web application ....

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For future reference, this is not possible.

My theory is that when you turn on full-screen mode in the application for the iPhone, it creates a very simple native application, which consists of a single view of the web interface. Unfortunately, this simple native application does not have complex functionality (multitasking, background sound), and there is no way to add it.

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