From f70a289cdfae130eaba679a246e339a6994cd149 Mon Sep 17 00:00:00 2001
From: Arnaud Vergnet <vergnet@etud.insa-toulouse.fr>
Date: Sat, 11 Apr 2020 22:35:57 +0200
Subject: [PATCH] Collapse header when scrolling

---
 package.json                             |  1 +
 src/navigation/MainTabNavigator.js       | 28 +++++++++++++++---------
 src/screens/Proximo/ProximoListScreen.js | 16 +++++++++++---
 src/utils/withCollapsible.js             |  8 +++++++
 4 files changed, 40 insertions(+), 13 deletions(-)
 create mode 100644 src/utils/withCollapsible.js

diff --git a/package.json b/package.json
index b8657aa..f898812 100644
--- a/package.json
+++ b/package.json
@@ -52,6 +52,7 @@
     "react-native-safe-area-context": "0.7.3",
     "react-native-screens": "~2.2.0",
     "react-native-webview": "8.1.1",
+    "react-navigation-collapsible": "^5.4.0",
     "react-navigation-header-buttons": "^3.0.5"
   },
   "devDependencies": {
diff --git a/src/navigation/MainTabNavigator.js b/src/navigation/MainTabNavigator.js
index 358e890..6623e15 100644
--- a/src/navigation/MainTabNavigator.js
+++ b/src/navigation/MainTabNavigator.js
@@ -13,12 +13,12 @@ import ProximoAboutScreen from "../screens/Proximo/ProximoAboutScreen";
 import PlanexScreen from '../screens/Websites/PlanexScreen';
 import {MaterialCommunityIcons} from "@expo/vector-icons";
 import AsyncStorageManager from "../managers/AsyncStorageManager";
-import {withTheme} from 'react-native-paper';
+import {useTheme, withTheme} from 'react-native-paper';
 import i18n from "i18n-js";
 import ClubDisplayScreen from "../screens/Amicale/Clubs/ClubDisplayScreen";
 import ScannerScreen from "../screens/ScannerScreen";
 import MaterialHeaderButtons, {Item} from "../components/Custom/HeaderButton";
-
+import {createCollapsibleStack} from 'react-navigation-collapsible';
 
 const TAB_ICONS = {
     home: 'triangle',
@@ -44,7 +44,9 @@ function getDrawerButton(navigation: Object) {
 
 const ProximoStack = createStackNavigator();
 
-function ProximoStackComponent() {
+function ProximoStackComponent(props: Object) {
+
+    const {colors} = useTheme();
     return (
         <ProximoStack.Navigator
             initialRouteName="index"
@@ -62,13 +64,19 @@ function ProximoStackComponent() {
                 }}
                 component={ProximoMainScreen}
             />
-            <ProximoStack.Screen
-                name="proximo-list"
-                options={{
-                    title: i18n.t('screens.proximoArticles')
-                }}
-                component={ProximoListScreen}
-            />
+            {createCollapsibleStack(
+                <ProximoStack.Screen
+                    name="proximo-list"
+                    options={{
+                        title: i18n.t('screens.proximoArticles')
+                    }}
+                    component={ProximoListScreen}
+                />,
+                {
+                    collapsedColor: colors.surface,
+                    useNativeDriver: true /* Optional, default: true */,
+                }
+            )}
             <ProximoStack.Screen
                 name="proximo-about"
                 component={ProximoAboutScreen}
diff --git a/src/screens/Proximo/ProximoListScreen.js b/src/screens/Proximo/ProximoListScreen.js
index a51e6ce..6e0f8a1 100644
--- a/src/screens/Proximo/ProximoListScreen.js
+++ b/src/screens/Proximo/ProximoListScreen.js
@@ -1,13 +1,16 @@
 // @flow
 
 import * as React from 'react';
-import {FlatList, Image, Platform, ScrollView, View} from "react-native";
+import {Animated, FlatList, Image, Platform, ScrollView, View} from "react-native";
 import i18n from "i18n-js";
 import CustomModal from "../../components/Custom/CustomModal";
 import {RadioButton, Searchbar, Subheading, Text, Title, withTheme} from "react-native-paper";
 import {stringMatchQuery} from "../../utils/Search";
 import ProximoListItem from "../../components/Lists/ProximoListItem";
 import MaterialHeaderButtons, {Item} from "../../components/Custom/HeaderButton";
+import {withCollapsible} from "../../utils/withCollapsible";
+
+const AnimatedFlatList = Animated.createAnimatedComponent(FlatList);
 
 function sortPrice(a, b) {
     return a.price - b.price;
@@ -39,6 +42,7 @@ type Props = {
     navigation: Object,
     route: Object,
     theme: Object,
+    collapsibleStack: Object,
 }
 
 type State = {
@@ -322,7 +326,9 @@ class ProximoListScreen extends React.Component<Props, State> {
 
     itemLayout = (data, index) => ({length: LIST_ITEM_HEIGHT, offset: LIST_ITEM_HEIGHT * index, index});
 
+
     render() {
+        const {containerPaddingTop, scrollIndicatorInsetTop, onScroll} = this.props.collapsibleStack;
         return (
             <View style={{
                 height: '100%'
@@ -331,7 +337,7 @@ class ProximoListScreen extends React.Component<Props, State> {
                     {this.state.modalCurrentDisplayItem}
                 </CustomModal>
                 {/*$FlowFixMe*/}
-                <FlatList
+                <AnimatedFlatList
                     data={this.listData}
                     extraData={this.state.currentSearchString + this.state.currentSortMode}
                     keyExtractor={this.keyExtractor}
@@ -340,10 +346,14 @@ class ProximoListScreen extends React.Component<Props, State> {
                     removeClippedSubviews={true}
                     getItemLayout={this.itemLayout}
                     initialNumToRender={10}
+                    // Animations
+                    onScroll={onScroll}
+                    contentContainerStyle={{paddingTop: containerPaddingTop}}
+                    scrollIndicatorInsets={{top: scrollIndicatorInsetTop}}
                 />
             </View>
         );
     }
 }
 
-export default withTheme(ProximoListScreen);
+export default withCollapsible(withTheme(ProximoListScreen));
diff --git a/src/utils/withCollapsible.js b/src/utils/withCollapsible.js
new file mode 100644
index 0000000..0cb5cad
--- /dev/null
+++ b/src/utils/withCollapsible.js
@@ -0,0 +1,8 @@
+import React from 'react';
+import {useCollapsibleStack} from "react-navigation-collapsible";
+
+export const withCollapsible = (Component: any) => {
+    return (props: any) => {
+        return <Component collapsibleStack={useCollapsibleStack()} {...props} />;
+    };
+};