react-native-paper/src/components/RadioButton/utils.ts

Material design for React Native

export const handlePress = ({
  onPress,
  value,
  onValueChange,
}: {
  onPress?: () => void;
  value: string;
  onValueChange?: (value: string) => void;
}) => {
  if (onPress && onValueChange) {
    console.warn(
      `onPress in the scope of RadioButtonGroup will not be executed, use onValueChange instead`
    );
  }

  onValueChange ? onValueChange(value) : onPress?.();
};

export const isChecked = ({
  value,
  status,
  contextValue,
}: {
  value: string;
  status?: 'checked' | 'unchecked';
  contextValue?: string;
}) => {
  if (contextValue !== undefined && contextValue !== null) {
    return contextValue === value ? 'checked' : 'unchecked';
  } else {
    return status;
  }
};