Added scrollStyle prop

Author: PaitoAnderson

README.md

@@ -155,7 +155,8 @@ Change valueExtractor and pass the data to Autocomplete without fetchDataUrl
  listHeaderTextStyle | Styles for list header text                 |   Object | -
  overlayStyle      | Styles for overlay view                       |   Object | -
  pickerStyle       | Styles for item picker view                   |   Object | -
- containerStyle | Styles for dropdown container view               |   Object | -
+ containerStyle    | Styles for dropdown container view            |   Object | -
+ scrollStyle       | Styles for dropdown flatlist                  |   Object | -
  scrollToInput     | Focus on selected field                       | Function | -
  handleSelectItem  | Selection callback (agrs: item, index)        | Function | -
  onDropdownShow    | Show keyboard                                 | Function | -

components/Dropdown/index.js

@@ -454,6 +454,7 @@ export default class Dropdown extends PureComponent {
   render() {
     const {
       containerStyle,
+      scrollStyle,
       overlayStyle: overlayStyleOverrides,
       pickerStyle: pickerStyleOverrides,
       supportedOrientations,
@@ -497,7 +498,7 @@ export default class Dropdown extends PureComponent {
                 keyboardShouldPersistTaps="always"
                 ref={this.updateScrollRef}
                 data={itemData}
-                style={styles.scroll}
+                style={[styles.scroll, scrollStyle]}
                 renderItem={this.renderItem}
                 keyExtractor={this.keyExtractor}
                 scrollEnabled={visibleItemCount <= itemCount}

index.d.ts

@@ -30,6 +30,7 @@ type AutocompleteProps = {
     overlayStyle?: StyleProp<TextStyle>;
     pickerStyle?: StyleProp<TextStyle>;
     containerStyle?: StyleProp<ViewStyle>;
+    scrollStyle?: StyleProp<ViewStyle>;
 
     scrollToInput: (ev: any) => void,
     handleSelectItem: (item: any, index: number) => void,