"react-native" : "0.61.5"
"react-native-paper": "^3.5.1"
I created a focus state and I used the "onFocus()" feature. When I click on the text input, the focus state changed "true" but the "border color" feature didn't change. I don't know why 馃槩
Thanks in advance for the answers 鉂わ笍

I solved my problem 馃槅
I added this code in
theme={{colors: {primary: 'green', underlineColor: 'transparent'}}}
Reference : https://github.com/callstack/react-native-paper/issues/656
@oguzsh, thank you!
Most helpful comment
I solved my problem 馃槅 :
I added this code in
theme={{colors: {primary: 'green', underlineColor: 'transparent'}}}Reference : https://github.com/callstack/react-native-paper/issues/656