Help needed how to set one time click button for bangla and english calender

im poor in english :expressionless:
when user click bangla alaweys open new screen and show the bangla clender
and when click other country than open new screen and show the english clender
automaticly open next time no need to clickthose button .how to use this mathod can anyone can say me

  1. Use arrangements, not screens.
  2. Store the user preference in a TinyDB.

It looks like this.

when click bangla open #new #screen and show 3-5 button when click dhaka-gazipur show the calender image i dont use any lebel here
sir hope you understand

No I do not.

You asked how to make it open every time based on the users input. I showed that.