flag of selected country

I have set default country flag to drawable left of edittext and when i chanfe country i want to change the flag as well how do i do that

No file, test, or entry point is named. Start by locating the country-selection callback and the EditText drawable integration, then verify that selecting a different country updates the displayed flag as well as the selected country.

索引モデルが issue の本文から書いたものです。