Best approach to implement internal blinds

[mottibz]

Hello,
As part of my personal smart home development (I am an IoT Maker as a hobby), I have implemented internal blinds.
I have looked into different UI elements:
- On/Off to open/close
- Slider - An issue I encountered with it is that the interval is always 1 even though I set it to 5
- Push button (Trigger) - There is an issue if it is Android only
All options do not really delivered a good user experience.
Also, I am looking for a way to tell my controller to stop rolling the blind in the middle (for example, the blind is in position 0, I send a request to go to position 100, but in the middle of the blind operation which takes time, I want to have a key in the UI to push and tell my controlle to stop the operation)
My questions:
- Is the Trigger UI element still Android only. If that is the case, is there a plan to add to iOS and when?
- What is the recommended way to implement the UI for an internal blind
- How to add a button to the UI that while the blind operation is working, will allow pushing and sending a message to my controller to stop the operation
Thanks a lot!

[mottibz]

Hi, I will highly appreciate a recomendation. Thanks!