diff --git a/android/app/build.gradle b/android/app/build.gradle
index 700db09..cd91b28 100644
--- a/android/app/build.gradle
+++ b/android/app/build.gradle
@@ -152,7 +152,7 @@ dependencies {
     implementation project(':react-native-navigation')
 
     implementation fileTree(dir: "libs", include: ["*.jar"])
-    implementation "com.android.support:appcompat-v7:${rootProject.ext.supportLibVersion}"
+    implementation 'androidx.appcompat:appcompat:1.0.0'
     implementation "com.facebook.react:react-native:+"  // From node_modules
 }
 
diff --git a/android/gradle.properties b/android/gradle.properties
index 89e0d99..ccb748f 100644
--- a/android/gradle.properties
+++ b/android/gradle.properties
@@ -16,3 +16,6 @@
 # This option should only be used with decoupled projects. More details, visit
 # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
 # org.gradle.parallel=true
+
+android.useAndroidX=true
+android.enableJetifier=true
\ No newline at end of file
diff --git a/src/component/comment/comment.js b/src/component/comment/comment.js
index 5fdb75d..b037835 100644
--- a/src/component/comment/comment.js
+++ b/src/component/comment/comment.js
@@ -79,13 +79,15 @@ const localStyle = StyleSheet.create({
     },
     titleText: {
         fontSize: 12,
-        color: Color.inactiveText
+        color: Color.inactiveText,
+        paddingRight: 10
     },
     content: {
         flexGrow: 1,
         lineHeight: 26,
         color: Color.text,
         fontSize: 15,
+        paddingRight: 5,
         marginBottom: 10
     },
     line: {
diff --git a/src/component/diary/diaryBrief.js b/src/component/diary/diaryBrief.js
index baad127..ed42f0c 100644
--- a/src/component/diary/diaryBrief.js
+++ b/src/component/diary/diaryBrief.js
@@ -3,6 +3,7 @@ import {StyleSheet, Text, View, TouchableOpacity} from 'react-native';
 import Ionicons from 'react-native-vector-icons/Ionicons';
 import moment from 'moment';
 
+import Touchable from '../touchable';
 import Color from '../../style/color';
 import UserIcon from '../userIcon';
 import Photo from '../photo';
@@ -17,8 +18,11 @@ export default class DiaryBrief extends Component {
     constructor(props) {
         super(props);
 
-        this.diary = props.diary;
-        this.diary.isExpired = props.isExpired || false;
+        this.state = {
+            diary: props.diary
+        }
+
+        this.expired = props.expired || false;
         this.editable = props.editable || false;
 
         this.showField = ['userIcon', 'userName', 'subject', 'createdTime'];
@@ -32,11 +36,17 @@ export default class DiaryBrief extends Component {
     }
 
     onDiaryAction() {
-        DiaryAction.action(this.props.componentId, this.diary);
+        DiaryAction.action(this.props.componentId, this.state.diary);
+    }
+
+    refreshDiary(diary) {
+        if(diary && this.props.refreshBack) {
+            this.props.refreshBack(diary);
+        }
     }
 
     render() {
-      let diary = this.diary;
+      let diary = this.state.diary;
       if(!diary) {
         return null;
       }
@@ -44,6 +54,7 @@ export default class DiaryBrief extends Component {
       let user = diary.user;
 
       return (
+        <Touchable onPress={() => this.props.onDiaryPress ? this.props.onDiaryPress(this.state.diary) : null}>
         <View style={[localStyle.box, this.props.style]}>
             {(user && user.iconUrl && this.show('userIcon'))
                 ? <UserIcon iconUrl={user.iconUrl} onPress={this.props.onUserIconPress}></UserIcon> : null}
@@ -80,7 +91,9 @@ export default class DiaryBrief extends Component {
                         <DiaryIconOkB diaryId={diary.id}
                             count={diary.like_count}
                             active={diary.liked}
-                            clickable={!diary.isExpired}></DiaryIconOkB>
+                            clickable={!this.expired}
+                            refreshBack={this.refreshDiary.bind(this)}
+                        ></DiaryIconOkB>
                     </View>
                     <View style={{flex: 1}} />
                     {
@@ -96,6 +109,7 @@ export default class DiaryBrief extends Component {
             </View>
             
         </View>
+        </Touchable>
       );
     }
 }
diff --git a/src/component/diary/diaryFull.js b/src/component/diary/diaryFull.js
index 1641ec7..a917ae8 100644
--- a/src/component/diary/diaryFull.js
+++ b/src/component/diary/diaryFull.js
@@ -8,6 +8,7 @@ import UserIcon from '../userIcon';
 import Photo from '../photo';
 
 import CommentList from '../comment/commentList';
+import DiaryIconOkB from './diaryIconOkB';
 
 
 export default class DiaryFull extends Component {
@@ -17,16 +18,12 @@ export default class DiaryFull extends Component {
         
         this.state = {
             diary: props.diary,
-            editable: props.editable || false
+            editable: props.editable || false,
+            expired: props.expired || false
         }
     }
 
-    refreshDiaryContent() {
-        if(!this.props.refreshData) {
-            return;
-        }
-
-        let diary = this.props.refreshData();
+    refreshDiaryContent(diary) {
         if(diary) {
             this.setState({diary})
         }
@@ -103,6 +100,14 @@ export default class DiaryFull extends Component {
                         </Text>
 
                         <Photo uri={diary.photoThumbUrl} onPress={() => this._onPhotoPress(diary.photoUrl)}></Photo>
+                    
+                        <View style={localStyle.actionBar}>
+                            <DiaryIconOkB diaryId={diary.id}
+                                count={diary.like_count}
+                                active={diary.liked}
+                                clickable={!this.state.expired}
+                            ></DiaryIconOkB>
+                        </View>
                     </View>
                 </View>
 
@@ -125,7 +130,7 @@ const localStyle = StyleSheet.create({
         overflow: "hidden",
         paddingHorizontal: 15,
         paddingTop: 15,
-        marginBottom: 30
+        marginBottom: 1
     },
     body: {
         flexDirection: "column",
@@ -137,6 +142,7 @@ const localStyle = StyleSheet.create({
     title: {
         flexDirection: "row",
         alignItems: "flex-end",
+        paddingRight: 10,
         paddingBottom: 5
     },
     titleName: {
@@ -153,6 +159,14 @@ const localStyle = StyleSheet.create({
         lineHeight: 24,
         color: Color.text,
         fontSize: 15,
+        paddingRight: 5,
         textAlignVertical: 'bottom'
+    },
+    actionBar: {
+        flexDirection: 'row',
+        width: '100%',
+        height: 30,
+        marginTop: 15,
+        justifyContent: 'flex-end'
     }
 });
diff --git a/src/component/diary/diaryIconOkB.js b/src/component/diary/diaryIconOkB.js
index 8b3a6c1..5856fc1 100644
--- a/src/component/diary/diaryIconOkB.js
+++ b/src/component/diary/diaryIconOkB.js
@@ -1,9 +1,17 @@
 import React, {Component} from 'react';
-import {StyleSheet, Text, View, Image, TouchableOpacity} from 'react-native';
+import {
+    StyleSheet,
+    Text,
+    View,
+    Image,
+    TouchableOpacity,
+    DeviceEventEmitter
+} from 'react-native';
 
 import Color from '../../style/color';
 import Api from '../../util/api';
 import Msg from '../../util/msg';
+import Event from '../../util/event';
 
 
 export default class DiaryIconOkB extends Component {
@@ -17,6 +25,19 @@ export default class DiaryIconOkB extends Component {
             active: props.active || false,
             clickable: props.clickable && true
         }
+
+        this.refreshBack = props.refreshBack || null;
+    }
+
+    componentWillReceiveProps(nextProps) {
+        this.setState({
+            diaryId: nextProps.diaryId || null,
+            count: nextProps.count || 0,
+            active: nextProps.active || false,
+            clickable: nextProps.clickable && true
+        });
+
+        this.refreshBack = nextProps.refreshBack || null;
     }
 
     onPress() {
@@ -27,32 +48,25 @@ export default class DiaryIconOkB extends Component {
         let count = this.state.count;
         let isActive = this.state.active;
 
-        if(!isActive) {
-            Api.likeDiary(this.state.diaryId)
-                .then(re => {
-                    this.setState({
-                        count: count + 1,
-                        active: true
+        (!isActive ? Api.likeDiary(this.state.diaryId) : Api.cancelLikeDiary(this.state.diaryId))
+            .then(re => {
+                if(this.refreshBack) {
+                    Api.getDiary(this.state.diaryId)
+                    .then(result => {
+                        if(result) {
+                            this.refreshBack(result);
+                        }
                     })
-                })
-                .catch(e => {
-                    Msg.showMsg('操作失败');
-                })
-                .done();
+                    .done();
 
-        } else {
-            Api.cancelLikeDiary(this.state.diaryId)
-                .then(re => {
-                    this.setState({
-                        count: count - 1,
-                        active: false
-                    })
-                })
-                .catch(e => {
-                    Msg.showMsg('操作失败');
-                })
-                .done();
-        }
+                } else {
+                    DeviceEventEmitter.emit(Event.updateDiarys);
+                }
+            })
+            .catch(e => {
+                Msg.showMsg('操作失败');
+            })
+            .done();
     }
 
     render() {
@@ -82,8 +96,7 @@ export default class DiaryIconOkB extends Component {
 
 const localStyle = StyleSheet.create({
     wrap: {
-        flexDirection: 'row',
-        marginRight: 6
+        flexDirection: 'row'
     },
     icon: {
         width: 18,
diff --git a/src/component/diary/diaryList.js b/src/component/diary/diaryList.js
index 6a5710b..e6a246a 100644
--- a/src/component/diary/diaryList.js
+++ b/src/component/diary/diaryList.js
@@ -52,6 +52,12 @@ export default class DiaryList extends Component {
         });
     }
 
+    scrollToTop() {
+        this.list.scrollToOffset({
+            offset: 0
+        });
+    }
+
     _onUserIconPress(diary) {
         Navigation.push(this.props.componentId, {
             component: {
@@ -72,7 +78,7 @@ export default class DiaryList extends Component {
         });
     }
 
-    _onDiaryPress(diary) {
+    _onDiaryPress(index, diary) {
         Navigation.push(this.props.componentId, {
             component: {
                 name: 'DiaryDetail',
@@ -89,7 +95,8 @@ export default class DiaryList extends Component {
                     diary: diary,
                     user: diary.user,
 
-                    editable: this.editable
+                    editable: this.editable,
+                    refreshBack: this.refreshOne.bind(this, index)
                 }
             }
         });
@@ -106,6 +113,18 @@ export default class DiaryList extends Component {
         });
     }
 
+    refreshOne(index, diary) {
+        if(diary) {
+            let list = this.state.diaries;
+            diary.user = list[index].user;
+            list[index] = diary;
+
+            this.setState({
+                diaries: list
+            });
+        }
+    }
+
     async refresh() {
         if(this.state.refreshing) {
             return;
@@ -195,7 +214,7 @@ export default class DiaryList extends Component {
 
         return (
             <View style={localStyle.container}>
-                <FlatList style={localStyle.list}
+                <FlatList ref={(r) => this.list = r} style={localStyle.list}
 
                     data={this.state.diaries}
 
@@ -203,20 +222,20 @@ export default class DiaryList extends Component {
                         return item.id + item.updated + item.comment_count + item.like_count;
                     }}
 
-                    renderItem={({item}) => {
+                    renderItem={({item, index}) => {
                         return (
-                            <Touchable onPress={() => this._onDiaryPress(item)}>
-                                <DiaryBrief {...this.props}
-                                    diary={item}
-                                    showField={this.props.showField}
-                                    editable={this.editable}
+                            <DiaryBrief {...this.props}
+                                diary={item}
+                                showField={this.props.showField}
+                                editable={this.editable}
 
-                                    onUserIconPress={() => this._onUserIconPress(item)}
-                                    onPhotoPress={() => this._onPhotoPress(item.photoUrl)}
-                                >
+                                onDiaryPress={this._onDiaryPress.bind(this, index)}
+                                onUserIconPress={() => this._onUserIconPress(item)}
+                                onPhotoPress={() => this._onPhotoPress(item.photoUrl)}
 
-                                </DiaryBrief>
-                            </Touchable>
+                                refreshBack={this.refreshOne.bind(this, index)}
+                            >
+                            </DiaryBrief>
                         )
                     }}
 
diff --git a/src/component/notebook/notebookDiaryList.js b/src/component/notebook/notebookDiaryList.js
index 4e86401..dccf81d 100644
--- a/src/component/notebook/notebookDiaryList.js
+++ b/src/component/notebook/notebookDiaryList.js
@@ -29,11 +29,12 @@ export default class NotebookDiaryList extends Component {
     constructor(props) {
         super(props);
 
-        this.editable = props.editable || false;
         this.notebook =  props.notebook;
+        this.editable = props.editable || false;
         this.dataSource = new NotebookDiaryData();
 
         this.state = {
+            rawlist: [],
             diaries: [],
 
             refreshing: false,
@@ -84,6 +85,19 @@ export default class NotebookDiaryList extends Component {
         return result;
     }
 
+    refreshOne(index, diary) {
+        console.log('index, diary:', index, diary);
+        if(diary) {
+            let list = this.state.rawlist;
+            diary.user = list[index].user;
+            list[index] = diary;
+
+            this.setState({
+                diaries: this.formatDiaries(list)
+            });
+        }
+    }
+
     refresh() {
         if (this.state.refreshing) {
             return;
@@ -100,6 +114,8 @@ export default class NotebookDiaryList extends Component {
                     } else {
                         let diaries = this.formatDiaries(result.list);
                         this.setState({
+                            rawlist: result.list,
+                            
                             diaries,
                             hasMore: result.more,
                             refreshFailed: false
@@ -134,6 +150,8 @@ export default class NotebookDiaryList extends Component {
                     } else {
                         let diaries = this.formatDiaries(result.list);
                         this.setState({
+                            rawlist: result.list,
+
                             diaries,
                             hasMore: result.more,
                             loadFailed: false
@@ -153,7 +171,7 @@ export default class NotebookDiaryList extends Component {
                 });
     }
 
-    _onDiaryPress(diary) {
+    _onDiaryPress(index, diary) {
         Navigation.push(this.props.componentId, {
             component: {
                 name: 'DiaryDetail',
@@ -169,7 +187,9 @@ export default class NotebookDiaryList extends Component {
                 passProps: {
                     diary: diary,
                     editable: this.editable,
-                    expired: this.notebook.isExpired
+                    expired: this.notebook.isExpired,
+
+                    refreshBack: this.refreshOne.bind(this, index)
                 }
             }
         });
@@ -180,23 +200,31 @@ export default class NotebookDiaryList extends Component {
             return null;
         }
 
-        let isExpired = this.notebook.isExpired;
+        let expired = this.notebook.isExpired;
 
         return (
           <View style={localStyle.container}>
             <SectionList
                 
-                keyExtractor={(item, index) => item.id}
+                keyExtractor={(item, index) => {
+                    return item.id + item.updated + item.comment_count + item.like_count;
+                }}
 
                 sections={this.state.diaries}
 
                 renderItem={(rowData) => {
-                    return (<Touchable onPress={() => this._onDiaryPress(rowData.item)}>
-                        <DiaryBrief diary={rowData.item} isExpired={isExpired}
-                            showField={['createdTime']}>
-                        }
+                    return (
+                        <DiaryBrief
+                            diary={rowData.item}
+                            showField={['createdTime']}
+                            expired={expired}
+                            
+                            onDiaryPress={this._onDiaryPress.bind(this, rowData.index)}
+
+                            refreshBack={this.refreshOne.bind(this, rowData.index)}
+                        >
                         </DiaryBrief>
-                    </Touchable>);
+                    );
                 }}
 
                 renderSectionHeader={(info) => {
diff --git a/src/component/userIntro.js b/src/component/userIntro.js
index 4784a59..9a612b2 100644
--- a/src/component/userIntro.js
+++ b/src/component/userIntro.js
@@ -52,28 +52,29 @@ export default class UserIntro extends Component {
     }
 
     render() {
+        if(this.state.isLoading) {
+            return <Loading visible={this.state.isLoading}></Loading>;
+        }
+
         const user = this.state.user;
+        return user ? (
+            <ScrollView style={localStyle.container} automaticallyAdjustContentInsets={false}>
+                <View style={localStyle.userIcon}>
+                    <UserIcon width={90} height={90} iconUrl={user.coverUrl} />
+                    <Text style={localStyle.userTitle}>{user.name}</Text>
+                </View>
 
-        return this.state.isLoading
-            ? <Loading visible={this.state.isLoading}></Loading>
-            : (
-                <ScrollView style={localStyle.container} automaticallyAdjustContentInsets={false}>
-                    <View style={localStyle.userIcon}>
-                        <UserIcon width={90} height={90} iconUrl={user.coverUrl} />
-                        <Text style={localStyle.userTitle}>{user.name}</Text>
-                    </View>
+                {
+                    user.intro && user.intro.length > 0
+                    ? (<Text style={localStyle.introText}>{user.intro}</Text>) : null
+                }
+                
+                <Text style={localStyle.joinTime}>
+                    {moment(user.created).format('YYYY年M月D日')}加入胶囊
+                </Text>
 
-                    {
-                        user.intro && user.intro.length > 0
-                        ? (<Text style={localStyle.introText}>{user.intro}</Text>) : null
-                    }
-                    
-                    <Text style={localStyle.joinTime}>
-                        {moment(user.created).format('YYYY年M月D日')}加入胶囊
-                    </Text>
-
-                </ScrollView>
-            );
+            </ScrollView>
+        ) : null;
     }
 }
 
diff --git a/src/page/DiaryDetailPage.js b/src/page/DiaryDetailPage.js
index 72553e1..572d50d 100644
--- a/src/page/DiaryDetailPage.js
+++ b/src/page/DiaryDetailPage.js
@@ -131,15 +131,10 @@ export default class DiaryDetailPage extends Component {
                     }
                 }
 
-                this.setState({
-                    diary: result
-                }, () => {
-                    this.diaryFull.refreshDiaryContent();
-                })
+                this.props.refreshBack(result);
+                this.diaryFull.refreshDiaryContent(result);
             })
-            .done(() => {
-
-            });
+            .done();
     }
 
     render() {
@@ -167,8 +162,8 @@ export default class DiaryDetailPage extends Component {
                     <DiaryFull ref={(r) => this.diaryFull = r}
                         {...this.props}
                         diary={this.state.diary}
-                        refreshData={() => this.state.diary}
                         editable={this.state.editable || isMine}
+                        expired={this.state.expired}
                     ></DiaryFull>
 
                 </ScrollView>
diff --git a/src/page/HomePage.js b/src/page/HomePage.js
index 6c18b73..b8491f1 100644
--- a/src/page/HomePage.js
+++ b/src/page/HomePage.js
@@ -16,6 +16,7 @@ import ActionSheet from 'react-native-actionsheet-api';
 
 import Color from '../style/color'
 import Api from '../util/api';
+import Update from '../util/update';
 
 import DiaryList from '../component/diary/diaryList'
 import HomeDiaryData from '../dataLoader/homeDiaryData';
@@ -49,6 +50,24 @@ export default class HomePage extends Component {
         } else {
             this.closeSplash();
         }
+
+        this.bottomTabEventListener = Navigation.events().registerBottomTabSelectedListener(
+            ({ selectedTabIndex, unselectedTabIndex }) => {
+                if(selectedTabIndex == unselectedTabIndex && selectedTabIndex == 0) {
+                    this.diaryList.scrollToTop();
+                }
+            }
+        );
+
+        if(Api.IS_ANDROID) {
+            setTimeout(() => {
+                Update.updateAndroid();
+            }, 2000);
+        }
+    }
+
+    componentWillUnmount() {
+        this.bottomTabEventListener.remove();
     }
 
     startTimer() {
@@ -189,7 +208,7 @@ export default class HomePage extends Component {
             <View style={localStyle.wrap}>
                 {
                     this.state.showSplash ? this.renderModal() : (
-                        <DiaryList ref={(r) => this.list = r}
+                        <DiaryList ref={(r) => this.diaryList = r}
                             dataSource={this.dataSource}
                             listHeader={this.renderHeader.bind(this)}
                             refreshHeader={this.refreshTopic.bind(this)}
diff --git a/src/page/UserPage.js b/src/page/UserPage.js
index caa45c2..582d8e4 100644
--- a/src/page/UserPage.js
+++ b/src/page/UserPage.js
@@ -193,6 +193,7 @@ export default class UserPage extends Component {
         diary: () => <DiaryList
             ref={(r) => this.diaryList = r}
             dataSource={this.dataSource}
+            showField={['subject', 'createdTime']}
             editable={!this.user}
             {...this.props}
         />,
diff --git a/src/util/api.js b/src/util/api.js
index 2103045..1b75aa2 100644
--- a/src/util/api.js
+++ b/src/util/api.js
@@ -339,6 +339,10 @@ async function feedback(content) {
     return callV2('POST', '/feedback', {content});
 }
 
+async function getUpdateInfo() {
+    return callV2('GET', '/updateInfo');
+}
+
 
 async function upload(method, api, body) {
     let token = await Token.getUserToken();
@@ -529,5 +533,6 @@ export default {
     deleteNotebook,
 
     report,
-    feedback
+    feedback,
+    getUpdateInfo
 }
\ No newline at end of file
diff --git a/src/util/update.js b/src/util/update.js
new file mode 100644
index 0000000..9be9e93
--- /dev/null
+++ b/src/util/update.js
@@ -0,0 +1,37 @@
+import React, {Component} from 'react';
+import {
+    Alert,
+    Linking
+} from 'react-native';
+
+import Api from './api';
+import Msg from './msg';
+
+
+async function updateAndroid() {
+    try {
+        let info = await Api.getUpdateInfo();
+        // console.log('update info:', info, Api.VERSION);
+        if(info.lastestVersion > Api.VERSION) {
+            Alert.alert(
+                '发现新版本 v' + info.lastestVersion,
+                info.message,
+                [
+                    {text: '以后再说', onPress: () => {}},
+                    {text: '更新', onPress: () => downloadApk(info.apkUrl, info.lastestVersion)},
+                ],
+                {cancelable: false}
+            )
+        }
+    } catch(e) {}
+}
+
+async function downloadApk(url, version) {
+    Linking.openURL(url);
+    Msg.showMsg('从浏览器下载更新包');
+}
+
+export default {
+    updateAndroid,
+    downloadApk
+}
\ No newline at end of file