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by pjmlp 2507 days ago
Only when one doesn't use a solution like having the common logic in a portable language like C++, with bindings to native UI elements.

A solution used by plenty of commercial desktop software as we moved from Assembly as main application language for desktop apps during the 16 bit days.
3 comments
TeMPOraL 2507 days ago
Agreed. Mixing business logic and UI works in simple applications, prototypes, or applications intended to ever work with one platform and UI paradigm. Outside of that, you're supposed to keep your "business logic" and UI separate (isn't this exactly why people invented MVC?).

Maintaining "5 different native UI applications" should involve one codebase with the whole internal logic, and 5 separate UI layers mediating between that logic and the platform it's being run on (including UI). It should not involve rewriting the same thing 5 times.

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nicoburns 2507 days ago
A lot of mobile apps are almost entirely UI...
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pjmlp 2506 days ago
An UI without logic is an useless app.
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solarexplorer 2506 days ago
Often you can offload the business logic to the backend. That way you don’t have to implement it multiple times for each platform and you can change it “immediately” even if users don’t update their apps.
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pjmlp 2506 days ago
In such cases that same backend can send an XML (or JSON if you will) DSL payload that generates such UIs on the fly using the native widgets.

Pretty easy to create such framework in something like C++ or having a scripting language that drives the native UI widgets, something like JavaScript.

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mrmonkeyman 2505 days ago
The 90s called, they want their UI engineer back.

UI these days is often more complex than the underlying logic itself. App logic became, to me, even secondary. Most of those issues are solved problems (databases, sql, rest, xml, json) and are mindnumbingly stupid and boring to implement. Save data record.. query data record.. validate data record, yeah, yeah, really complex.

A good fancy UI however... good luck.

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amw-zero 2506 days ago
You don’t want to write the predominate amount of app logic in C++. I’ve been there. The portability isn’t worth it.
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