From c306b2850ad34feda0c6135fb670f065415fa26e Mon Sep 17 00:00:00 2001
From: "satyajit.happy" <satyajit.happy@gmail.com>
Date: Mon, 8 Jul 2019 03:22:05 +0200
Subject: [PATCH] refactor: export a modal transition preset

---
 src/TransitionConfigs/TransitionPresets.tsx | 5 +++++
 src/views/Stack/Stack.tsx                   | 6 ++----
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/TransitionConfigs/TransitionPresets.tsx b/src/TransitionConfigs/TransitionPresets.tsx
index f1066a1c1..ae93dcae0 100644
--- a/src/TransitionConfigs/TransitionPresets.tsx
+++ b/src/TransitionConfigs/TransitionPresets.tsx
@@ -79,3 +79,8 @@ export const DefaultTransition = Platform.select({
       ? FadeFromBottomAndroid
       : WipeFromBottomAndroid,
 });
+
+export const ModalTransition = Platform.select({
+  ios: ModalSlideFromBottomIOS,
+  default: DefaultTransition,
+});
diff --git a/src/views/Stack/Stack.tsx b/src/views/Stack/Stack.tsx
index cf1719ccd..47c1abf1e 100755
--- a/src/views/Stack/Stack.tsx
+++ b/src/views/Stack/Stack.tsx
@@ -14,7 +14,7 @@ import { Props as HeaderContainerProps } from '../Header/HeaderContainer';
 import StackItem from './StackItem';
 import {
   DefaultTransition,
-  ModalSlideFromBottomIOS,
+  ModalTransition,
 } from '../../TransitionConfigs/TransitionPresets';
 import { forNoAnimation } from '../../TransitionConfigs/HeaderStyleInterpolators';
 import {
@@ -301,9 +301,7 @@ export default class Stack extends React.Component<Props, State> {
     const focusedOptions = descriptors[focusedRoute.key].options;
 
     let defaultTransitionPreset =
-      mode === 'modal' && Platform.OS === 'ios'
-        ? ModalSlideFromBottomIOS
-        : DefaultTransition;
+      mode === 'modal' ? ModalTransition : DefaultTransition;
 
     if (headerMode === 'screen') {
       defaultTransitionPreset = {