Add sharing for pictures.

components/Media.js

@@ -1,5 +1,5 @@
 import React, { useState, useEffect } from 'react';
-import { View, TouchableHighlight, Image, StyleSheet, FlatList } from 'react-native';
+import { View, TouchableHighlight, Image, StyleSheet, FlatList, TouchableWithoutFeedback, Share } from 'react-native';
 import { Button, Text, ProgressBar } from 'react-native-paper';
 import API from './../API.js';
 import VideoPlayer from './VideoPlayer.js';
@@ -120,7 +120,16 @@ let Media = (props) => {
             source={{ uri: "https://www.youtube.com/embed/" + youtubeId + "?fs=0" }}
         /> : <></>;
     const renderImages = (({ item }) => {
-        return (<Image source={{ uri: item[1] }} style={styles.flatlistImages} />);
+        return (
+            <TouchableWithoutFeedback style={styles.flatlistImages} onLongPress={()=>{
+                Share.share({
+                    //message: image[1],
+                    url: item[1],
+                });
+            }}>
+                <Image source={{ uri: item[1] }}  style={styles.flatlistImages}/>
+            </TouchableWithoutFeedback>
+            );
     });
     let progress = <></>;
     if(viewer.data && viewer.data[props.postId]) {
@@ -148,7 +157,14 @@ let Media = (props) => {
                             imagesTag.map((image, i) => {
                                 return (
                                     //<Text key={i}>{post.content}</Text>
-                                    <Image source={{ uri: image[1] }} key={image[1]} style={imageStyle} />
+                                    <TouchableWithoutFeedback onLongPress={()=>{
+                                        Share.share({
+                                            //message: image[1],
+                                            url: image[1],
+                                        });
+                                    }}>
+                                        <Image source={{ uri: image[1] }} key={image[1]} style={imageStyle} />
+                                    </TouchableWithoutFeedback>
                                 )
                             })
                         }

components/Post.js

@@ -51,7 +51,7 @@ let Post = (props) => {
         } else {
             changeBookmarked(false);
             post.bookmarks = post.bookmarks.filter(id => id != viewer._id);
-            API.removePostReaction(post._id)
+            API.removePostBookmark(post._id)
         }
     }
     const renderComment = ({ item }) => (