Making a UI with java or other language. - Raspberry Pi Forums

hi,
wanting make smart house program using raspberry pi , 7 inch touch display.
need smooth android os. have questions:

1 - possible make "smooth android os"?

2 - thinking on using java program it, doable?

3 - should use programming language?

if not right place post question please move topic right place plz.

thank in advance.

i'd inclined make such gui using c++ , qt5.

quick google "raspberry pi touch screen qt" shows bunch of links people have done , youtube videos of results.

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