feat: add anchor option for iPads (#155)

src/ActionSheet/index.ios.tsx

@@ -31,6 +31,7 @@ export default class ActionSheet extends React.Component<Props> {
       // A null title or message on iOS causes a crash
       title: dataOptions.title || undefined,
       message: dataOptions.message || undefined,
+      anchor: dataOptions.anchor || undefined,
     };
     ActionSheetIOS.showActionSheetWithOptions(iosOptions, onSelect);
   }

src/types.ts

@@ -13,6 +13,7 @@ export interface ActionSheetIOSOptions {
   tintColor?: string;
   cancelButtonIndex?: number;
   destructiveButtonIndex?: number;
+  anchor?: number;
 }
 
 // for Android or Web