'How to use Flutter to implement a button like ios virtual home button

I want to create a button can move to any position like iPhone Style (Virtual Home Button) in Flutter but I don't know any packages or any library can do it. Moreover, I'd like the button to be able to show along with a specific app, eg. dial-up UI. If I deploy to desktop, will its behavior the same with mobile?

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ios virtual home button

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show button along with dial-up UI

Hope you guys help me ways to create it.

I have tried with unicorndial, floating_bubble, popup window, etc. but all of them are widget within flutter app, instead of system-wide.



Solution 1:[1]

Sorry you can't really create anything like that outside of your App context. Apple is very strict in situations like this.

You can implement this sort of feature in Android by using Floating Service. But for Apple it's a NO NO.

Sources

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Source: Stack Overflow

Solution Source
Solution 1 CopsOnRoad