Refactor demo project

[hoangchungk53qx1]

IMPORTANT: All PRs must be linked to an issue (except for extremely trivial and straightforward changes).

Fixes #[issue number]

Description
refactor demo project.

Alternative(s) considered
Have you considered any alternatives? And if so, why have you chosen the approach in this PR?

Type
Choose one: (Bug fix | Feature | Documentation | Testing | Code health | Builds | Releases | Other)

Screenshots (if applicable)

Checklist

• [v] I have read and acknowledged the Code of conduct.
• [v] I have read the Contributing page.
• [v] I have signed the Google Individual CLA, or I am covered by my company's Corporate CLA.
• [v] I have discussed my proposed solution with code owners in the linked issue(s) and we have agreed upon the general approach.
• [v] I have run ./gradlew spotlessApply and ./gradlew spotlessCheck to check my code follows the style guide of this project.
• [v] I have run ./gradlew check and ./gradlew connectedCheck to test my changes locally.
• [v] I have built and run the demo app(s) to verify my change fixes the issue and/or does not break the demo app(s).

[hoangchungk53qx1]

@jingtang10 👆

[MJ1998]

@hoangchungk53qx1
Thanks for your first PR. Looking forward for more PRs from you.

Why do you wanna split the pollState into periodic and oneTime ?

[hoc081098]

Looks good🙏 @hoangchungk53qx1

[jingtang10]

thanks chung for the contribution. i think this change does make sense and will approve now.

in the future, can you please try to use more descriptive names for prs and perhaps send more specific changes (for example in this case splitting the flow into 2 can be a separate pr, and adding the file utility can be another).

but all in all very good. thanks for the pr again! look forward to receiving more contributions from you.

[hoangchungk53qx1]

thanks chung for the contribution. i think this change does make sense and will approve now.

in the future, can you please try to use more descriptive names for prs and perhaps send more specific changes (for example in this case splitting the flow into 2 can be a separate pr, and adding the file utility can be another).

but all in all very good. thanks for the pr again! look forward to receiving more contributions from you.

I just made a few changes to this PR, thank you !

[hoc081098]

@hoangchungk53qx1 🙏