Add DBHelper.js

@@ -26,7 +26,8 @@
     "react-navigation": "^4.0.10",
     "react-navigation-drawer": "^2.3.3",
     "react-navigation-stack": "^1.10.3",
-    "react-navigation-tabs": "^2.5.6"
+    "react-navigation-tabs": "^2.5.6",
+    "realm": "^3.6.0"
   },
   "devDependencies": {
     "@babel/core": "^7.7.2",

@@ -104,6 +104,9 @@ export default class HomeTab extends Component {
                     />
                 }
             >
+                <View style={style.header}>
+                    <Text style={style.tabName}>History </Text>
+                </View>
                 <Text>{this.state.title}</Text>
                 <SegmentedControlTab
                     values={["Week", "Month", "Year"]}
@@ -121,5 +124,16 @@ const style = StyleSheet.create({
         flex: 1,
         alignItems: 'center',
         justifyContent: 'center',
+    },
+    header: {
+        flex :1,
+        justifyContent : 'center',
+    },
+    tabName:{
+        marginStart : 10,
+        textAlignVertical : 'center',
+        fontSize : 20,
+        color : "#0066cc",
+        fontWeight: 'bold',
     }
 })
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 import React, { Component } from 'react';
 import { View, Text, StyleSheet, SafeAreaView, ScrollView, Image } from 'react-native';
-import WasteDetail from '../WasteDetail'
 import Circle from '../component/circle_component'
 import {Table, TableWrapper, Row,Rows} from 'react-native-table-component'
+import  {get_now_weight} from'../component/DBhelper.js';
+
 var date = new Date();
 date.setHours(date.getHours()+9);
 var month = date.getMonth()+1;
@@ -16,7 +17,7 @@ export default class HomeTab extends Component {
         this.state = {
             ID : this.props.navigation.getParam('id','pi1'),
             today : date.getFullYear() + "." + month + "." + date.getDate(),
-            current_weight : 0,
+            current_weight : get_now_weight() ,
             table_contents : [['오후','6:12:15', '+0.25kg', 'Total : 1.5 kg'],['오후','4:27:52', '+0.12kg', 'Total : 1.38kg'],
             ['오후','6:12:15', '+0.25kg', 'Total : 1.5 kg'],['오후','6:12:15', '+0.25kg', 'Total : 1.5 kg'],
             ['오후','6:12:15', '+0.25kg', 'Total : 1.5 kg'],['오후','6:12:15', '+0.25kg', 'Total : 1.5 kg'],
@@ -63,9 +64,9 @@ export default class HomeTab extends Component {
                             <Text style ={style.date_text}>{this.state.today}</Text>
                         </View>    
                     </View>
-                <View style={style.current_state}>
+                <View style={this.state.current_weight}>
                     <Circle
-                        title={"3.6"}
+                        title={this.state.current_weight}
                         onPress={()=>{this.get_diff_data()}}>
                     </Circle>
                 </View>

 import React, { Component } from 'react';
 import { StyleSheet, Text, View, TextInput, Image} from 'react-native';
 import LoginButton from './component/LoginButton';
+import  {add_data} from'./component/DBhelper.js';
 
 export default class Login extends Component {
 
@@ -8,30 +9,24 @@ export default class Login extends Component {
         super(props);
         this.state = {
             ID: '',
-        };
+        }
     }
     static navigationOptions = {
         title: 'Login',
     };
 
-    /*handlePress = async () => {
-        fetch('http://localhost:3000/app/get_data/'+this.state.ID, {
-            method: 'GET',
-            headers: {
-              'Content-Type': 'application/json',
-            },
-      })
+    getdata() {
+        return fetch('http://10.0.2.2:3000/app/get_data/uid1')
          .then((response) => response.json())
          .then((responseJson) => {
-       Alert.alert("Author name at 0th index:  " + responseJson[0].name);
+           // alert(responseJson[0].ras_id.S);
+           //alert(responseJson.length)
+           add_data(responseJson);
          })
          .catch((error) => {
            console.error(error);
          });
      }
-    */
-
-
 
     render() {
         return (
@@ -60,7 +55,8 @@ export default class Login extends Component {
                             onChangeText={(text) => {this.setState({ID:text})}}
                         />
                         <LoginButton
-                            onPress={() =>{ this.props.navigation.navigate('MainScreen', { ID: this.state.ID }) }}
+                            // onPress={()=>getdata}
+                            onPress={() =>{ this.getdata().then(this.props.navigation.navigate('MainScreen', { ID: this.state.ID })) }}
                         />
                     </View>
                 </View>

-import React, { Component } from 'react';
-import { View, Text, StyleSheet } from 'react-native';
-
-export default class HomeTab extends Component {
-    render() {
-        return (
-            <View style={style.container}>
-                <Text>총 3.8kg 추가</Text>
-            </View>
-        );
-    }
-}
-
-const style = StyleSheet.create({
-    container: {
-        flex: 1,
-        backgroundColor: "rgba(230,230,230,0.5)"
-    }
-});

+// Define your models and their properties
+import Realm from 'realm'
+
+class Waste {}
+Waste.schema = {
+  name: 'Waste',
+  properties: {
+    weight: 'int',
+    diff: 'int',
+    date: 'float',
+  }
+};
+
+// Get the default Realm with support for our objects
+let realm = new Realm({schema: [Waste]});
+
+// // Create Realm objects and write to local storage
+// realm.write(() => {
+//   let myWaste = realm.create('Waste', {
+//     weight: 1655,
+//     diff: 500,
+//     date: '1576236841329.253',
+//   });
+// //   myWaste.miles += 2SS0; // Update a property value
+// });
+
+// // Query Realm for all cars with a high mileage
+// let wastes = realm.objects('Waste').filtered('weight > 1000');
+
+// // Will return a Results object with our 1 car
+// cars.length // => 1
+
+// // Add another car
+// realm.write(() => {
+//   let myCar = realm.create('Car', {
+//     make: 'Ford',
+//     model: 'Focus',
+//     miles: 2000,
+//   });
+// });
+// // Query results are updated in realtime
+// cars.length // => 2
+
+export function add_data(responseJson){
+    for(i = 0; i < responseJson.length; i++){
+        realm.write(() => {
+            // responseJson[0].ras_id.S
+            let myWaste = realm.create('Waste', {
+                weight: Number(responseJson[i].weight.N),
+                diff: Number(responseJson[i].diff.N),
+                date: Number(responseJson[i].save_date.S),
+            });
+          });
+    }
+
+    return responseJson.length;
+}
+
+export function get_now_weight(){
+    let wastes = realm.objects('Waste');
+    let recent = realm.objects('Waste').max('date').date;
+    let recentWeight = wastes.filtered('date = 1576223063238.5166');
+    
+    return recentWeight[0].weight;
+    
+    // return "3.8"
+}
+
+export function get_recent_date(){
+    
+    return realm.objects('Waste').max("date");
+}
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