Update function types

README.md

@@ -132,8 +132,8 @@ export default function App() {
 - `renderFlagButton?`(props: (FlagButton['props'])): ReactNode ([FlagButton props](https://github.com/xcarpentier/react-native-country-picker-modal/blob/master/src/FlagButton.tsx#L73))
 - `renderCountryFilter?`(props: CountryFilter['props']): ReactNode ([CountryFilter props is TextInputProps](https://facebook.github.io/react-native/docs/textinput#props))
 - `onSelect`(country: Country): void ([Country](https://github.com/xcarpentier/react-native-country-picker-modal/blob/master/src/types.ts#L263))
-- `onOpen`(): void
-- `onClose`(): void
+- `onOpen`: () => void
+- `onClose`: () => void
 - `closeButtonImage?`: [ImageSourcePropType](https://facebook.github.io/react-native/docs/image#props)
 - `closeButtonStyle?`: StyleProp<ViewStyle>
 - `closeButtonImageStyle?`: StyleProp<ImageStyle>

src/CloseButton.tsx

@@ -31,7 +31,7 @@ interface CloseButtonProps {
   style?: StyleProp<ViewStyle>
   imageStyle?: StyleProp<ImageStyle>
   image?: ImageSourcePropType
-  onPress?(): void
+  onPress?: () => void
 }
 
 const CloseButtonAndroid: React.FC<CloseButtonProps> = (props) => {

src/CountryPicker.tsx

@@ -83,8 +83,8 @@ interface CountryPickerProps {
     props: React.ComponentProps<typeof CountryFilter>,
   ): ReactNode
   onSelect(country: Country): void
-  onOpen?(): void
-  onClose?(): void
+  onOpen?: () => void
+  onClose?: () => void
 }
 
 export const CountryPicker = (props: CountryPickerProps) => {

src/FlagButton.tsx

@@ -119,7 +119,7 @@ export interface FlagButtonProps {
   containerButtonStyle?: StyleProp<ViewStyle>
   countryCode?: CountryCode
   placeholder: string
-  onOpen?(): void
+  onOpen?: () => void
 }
 
 export const FlagButton = ({

src/HeaderModal.tsx

@@ -22,7 +22,7 @@ interface HeaderModalProps {
   closeButtonImage?: ImageSourcePropType
   closeButtonStyle?: StyleProp<ViewStyle>
   closeButtonImageStyle?: StyleProp<ImageStyle>
-  onClose(): void
+  onClose: () => void
   renderFilter(props: HeaderModalProps): ReactNode
 }
 export const HeaderModal = (props: HeaderModalProps) => {

src/index.tsx

@@ -45,8 +45,8 @@ interface Props {
   renderFlagButton?(props: FlagButtonProps): ReactNode
   renderCountryFilter?(props: CountryFilterProps): ReactNode
   onSelect(country: Country): void
-  onOpen?(): void
-  onClose?(): void
+  onOpen?: () => void
+  onClose?: () => void
 }
 
 const Main = ({ theme, translation, ...props }: Props) => {