diff --git a/src/api/db.js b/src/api/db.js
index 4eed67a..dfab144 100644
--- a/src/api/db.js
+++ b/src/api/db.js
@@ -7,15 +7,18 @@ const auth = app.auth();
 
 async function login() {
     await auth.signInAnonymously();
-    // const loginState = await auth.getLoginState();
+    const loginState = await auth.getLoginState();
+    isLogin = loginState
 }
 
 login();
 
+let isLogin;
 const db = app.database();
 const _ = db.command
 
 export function increaseDownloadData(value) {
+    if (!isLogin) return;
     db.collection('QRCounter').where({
         value: _.eq(value)
     }).get().then(res => {
@@ -25,21 +28,20 @@ export function increaseDownloadData(value) {
             }).update({
                 count: _.inc(1),
                 date: new Date().toString()
-            }).then(res => {
-            })
+            }).catch(console.error)
         }
         else {
             db.collection('QRCounter').add({
                 value: value,
                 count: 1,
                 date: new Date().toString()
-            }).then(res => {
-            })
+            }).catch(console.error)
         }
     })
 }
 
 export function recordDownloadDetail({text, value, type, params, history}) {
+    if (!isLogin) return;
     db.collection('QRDownloadData').add({
         date: new Date().toString(),
         text: text,
@@ -47,6 +49,5 @@ export function recordDownloadDetail({text, value, type, params, history}) {
         type: type,
         params: params,
         history: history
-    }).then(res => {
-    })
+    }).catch(console.error)
 }
diff --git a/src/components/app/PartDownload.js b/src/components/app/PartDownload.js
index ca86092..e0aea5b 100644
--- a/src/components/app/PartDownload.js
+++ b/src/components/app/PartDownload.js
@@ -1,32 +1,50 @@
-import React from 'react';
+import React, {useState} from 'react';
 import './App.css';
-import DownloadSvg from "../../containers/download/DownloadSvg";
-import DownloadJpg from "../../containers/download/DownloadJpg";
+import PropTypes from 'prop-types';
 import {isWeiXin} from "../../utils/util";
 
 const WxMessage = () => {
     if (isWeiXin()) {
-        return <div className="note-font" id="wx-message-inner">当前客户端不支持下载，请在浏览器中打开。</div>
+        return <div className="note-font" id="wx-message-inner">当前客户端不支持下载，请长按图片保存。</div>
     }
     return null
 }
 
-const PartDownload = ({ value }) => (
-    <div className="Qr-titled">
+const PartDownload = ({ value, onSvgDownload, onJpgDownload }) => {
+    const [imgData, setImgData] = useState('');
+
+    return (
+        <div className="Qr-titled">
         <div className="Qr-Centered title-margin">
             <div className="Qr-s-title">Downloads</div>
             <p className="Qr-s-subtitle">下载二维码 — {value}</p>
         </div>
         <div className="Qr-Centered">
             <div className="div-btn">
-                <DownloadSvg/>
-                <DownloadJpg/>
+                <button className="dl-btn" onClick={onSvgDownload}>SVG</button>
+                <button className="dl-btn" onClick={() => {
+                    onJpgDownload().then(res => setImgData(res));
+                }}>
+                    JPG
+                </button>
             </div>
             <div id="wx-message">
                 <WxMessage/>
             </div>
+            <div>
+                {
+                    imgData.length > 0 ? <img src={imgData} width={300} height={300} alt="点击JPG下载" /> : null
+                }
+            </div>
         </div>
     </div>
-)
+    );
+}
+
+PartDownload.propTypes = {
+    value: PropTypes.string.isRequired,
+    onSvgDownload: PropTypes.func.isRequired,
+    onJpgDownload: PropTypes.func.isRequired,
+}
 
 export default PartDownload;
diff --git a/src/components/app/PartStyles.js b/src/components/app/PartStyles.js
index e007dfb..dee3f7b 100644
--- a/src/components/app/PartStyles.js
+++ b/src/components/app/PartStyles.js
@@ -7,14 +7,16 @@ const PartStyles = ({ setParamInfo }) => {
     useEffect(() => {
         setLoaded(true);
     }, [])
+
     const styleList = React.createElement(StyleListViewer({setParamInfo}))
+    console.log(loaded)
 
     return (<div className="Qr-titled">
         <div className="Qr-Centered title-margin">
             <div className="Qr-s-title">Styles</div>
             <p className="Qr-s-subtitle">点击选择样式</p>
         </div>
-        <div className="Qr-s">
+        <div className="Qr-s" style={{visibility: loaded ? "visible" :"hidden"}}>
             {styleList}
         </div>
     </div>)
diff --git a/src/components/download/DownloadButton.js b/src/components/download/DownloadButton.js
deleted file mode 100644
index ce510e9..0000000
--- a/src/components/download/DownloadButton.js
+++ /dev/null
@@ -1,16 +0,0 @@
-import React from "react";
-import PropTypes from 'prop-types'
-import '../Qrcode.css';
-
-const DownloadButton = ({ onClick, value }) => (
-    <button className="dl-btn" onClick={onClick}>
-        {value}
-    </button>
-)
-
-DownloadButton.propTypes = {
-    onClick: PropTypes.func.isRequired,
-    value: PropTypes.string.isRequired
-}
-
-export default DownloadButton;
diff --git a/src/components/header/Header.js b/src/components/header/Header.js
index 233fdf0..d65d5cb 100644
--- a/src/components/header/Header.js
+++ b/src/components/header/Header.js
@@ -1,7 +1,7 @@
 import React from "react";
 import '../Qrcode.css';
 import logo from "../../qrbtf-logo.svg";
-import InputText from "../../containers/InputText";
+import InputText from "../../containers/app/InputText";
 
 const logoStyle = {
     background: `url(${logo})`,
diff --git a/src/components/param/ParamText.js b/src/components/param/ParamText.js
index c573290..ee338c6 100644
--- a/src/components/param/ParamText.js
+++ b/src/components/param/ParamText.js
@@ -2,13 +2,13 @@ import React from 'react';
 import PropTypes from 'prop-types'
 import '../Qrcode.css';
 
-const ParamText = ({ rendererIndex, paramIndex, value, onBlur, onKeyPress }) => (
+const ParamText = ({ rendererIndex, paramIndex, value, info, onBlur, onKeyPress }) => (
     <input
         type="number"
         key={"input_" + rendererIndex + "_" + paramIndex}
         className="Qr-input small-input"
-        placeholder={value}
-        defaultValue={value}
+        placeholder={info.default}
+        defaultValue={String(value)}
         onBlur={onBlur}
         onKeyPress={onKeyPress}
         />
@@ -17,7 +17,8 @@ const ParamText = ({ rendererIndex, paramIndex, value, onBlur, onKeyPress }) =>
 ParamText.propTypes = {
     rendererIndex: PropTypes.number.isRequired,
     paramIndex: PropTypes.number.isRequired,
-    value: PropTypes.string.isRequired,
+    value: PropTypes.number.isRequired,
+    info: PropTypes.object.isRequired,
     onBlur: PropTypes.func.isRequired,
     onKeyPress: PropTypes.func.isRequired
 }
diff --git a/src/containers/InputText.js b/src/containers/app/InputText.js
similarity index 65%
rename from src/containers/InputText.js
rename to src/containers/app/InputText.js
index 5cca40c..b2b6dbe 100644
--- a/src/containers/InputText.js
+++ b/src/containers/app/InputText.js
@@ -1,5 +1,5 @@
 import {connect} from 'react-redux';
-import {genQRInfo} from "../actions";
+import {genQRInfo} from "../../actions";
 import React from "react";
 
 const InputText = ({dispatch}) => (
@@ -8,7 +8,10 @@ const InputText = ({dispatch}) => (
         placeholder="Input your URL here"
         onBlur={e => dispatch(genQRInfo(e.target.value))}
         onKeyPress={(e) => {
-            if (e.key === 'Enter') dispatch(genQRInfo(e.target.value))
+            if (e.key === 'Enter') {
+                dispatch(genQRInfo(e.target.value));
+                e.target.blur();
+            }
         }}
     />
 )
diff --git a/src/containers/app/PartDownloadViewer.js b/src/containers/app/PartDownloadViewer.js
index 4662069..ee98091 100644
--- a/src/containers/app/PartDownloadViewer.js
+++ b/src/containers/app/PartDownloadViewer.js
@@ -1,8 +1,41 @@
 import { connect } from 'react-redux';
 import PartDownload from "../../components/app/PartDownload";
+import React from "react";
+import {saveImg, saveSvg} from "../../utils/downloader";
+import ReactDOMServer from "react-dom/server";
+import {increaseDownloadData, recordDownloadDetail} from "../../api/db";
+import {getParamDetailedValue} from "../../utils/util";
+
+function saveEl(state, type) {
+    const el = React.createElement(state.rendererType, {
+        qrcode: state.qrcode,
+        params: state.paramValue[state.selectedIndex],
+        setParamInfo: () => {}
+    });
+    increaseDownloadData(state.value)
+    recordDownloadDetail({
+        text: state.textUrl,
+        value: state.value,
+        type: type,
+        params: state.paramInfo[state.selectedIndex].map((item, index) => {
+            return {
+                key: item.key,
+                value: getParamDetailedValue(item, state.paramValue[state.selectedIndex][index])
+            }
+        }),
+        history: state.history
+    });
+    return el;
+}
 
 const mapStateToProps = (state) => ({
-    value: state.value
+    value: state.value,
+    onSvgDownload: () => {
+        saveSvg(state.value, ReactDOMServer.renderToString(saveEl(state, 'svg')))
+    },
+    onJpgDownload: () => {
+        return saveImg(state.value, ReactDOMServer.renderToString(saveEl(state, 'jpg')), 1500, 1500)
+    }
 })
 
 export default connect(mapStateToProps, null)(PartDownload)
diff --git a/src/containers/download/DownloadJpg.js b/src/containers/download/DownloadJpg.js
deleted file mode 100644
index 0631cb6..0000000
--- a/src/containers/download/DownloadJpg.js
+++ /dev/null
@@ -1,34 +0,0 @@
-import { connect } from 'react-redux';
-import React from 'react';
-import ReactDOMServer from 'react-dom/server'
-import DownloadButton from "../../components/download/DownloadButton";
-import {saveImg} from "../../utils/downloader";
-import {increaseDownloadData, recordDownloadDetail} from "../../api/db";
-import {getParamDetailedValue} from "../../utils/util";
-
-const mapStateToProps = (state) => ({
-    value: 'JPG',
-    onClick: () => {
-        const el = React.createElement(state.rendererType, {
-            qrcode: state.qrcode,
-            params: state.paramValue[state.selectedIndex],
-            setParamInfo: () => {}
-        });
-        saveImg(state.value, ReactDOMServer.renderToString(el), 1500, 1500);
-        increaseDownloadData(state.value)
-        recordDownloadDetail({
-            text: state.textUrl,
-            value: state.value,
-            type: 'jpg',
-            params: state.paramInfo[state.selectedIndex].map((item, index) => {
-                return {
-                    key: item.key,
-                    value: getParamDetailedValue(item, state.paramValue[state.selectedIndex][index])
-                }
-            }),
-            history: state.history
-        });
-    }
-});
-
-export default connect(mapStateToProps, null)(DownloadButton)
diff --git a/src/containers/download/DownloadSvg.js b/src/containers/download/DownloadSvg.js
deleted file mode 100644
index 1c41b5d..0000000
--- a/src/containers/download/DownloadSvg.js
+++ /dev/null
@@ -1,34 +0,0 @@
-import { connect } from 'react-redux';
-import React from 'react';
-import ReactDOMServer from 'react-dom/server'
-import DownloadButton from "../../components/download/DownloadButton";
-import {saveSvg} from "../../utils/downloader";
-import {increaseDownloadData, recordDownloadDetail} from "../../api/db";
-import {getParamDetailedValue} from "../../utils/util";
-
-const mapStateToProps = (state) => ({
-    value: 'SVG',
-    onClick: () => {
-        const el = React.createElement(state.rendererType, {
-            qrcode: state.qrcode,
-            params: state.paramValue[state.selectedIndex],
-            setParamInfo: () => {}
-        });
-        saveSvg(state.value, ReactDOMServer.renderToString(el));
-        increaseDownloadData(state.value)
-        recordDownloadDetail({
-            text: state.textUrl,
-            value: state.value,
-            type: 'svg',
-            params: state.paramInfo[state.selectedIndex].map((item, index) => {
-                return {
-                    key: item.key,
-                    value: getParamDetailedValue(item, state.paramValue[state.selectedIndex][index])
-                }
-            }),
-            history: state.history
-        });
-    }
-});
-
-export default connect(mapStateToProps, null)(DownloadButton)
diff --git a/src/containers/param/ParamTextViewer.js b/src/containers/param/ParamTextViewer.js
index 9c856ec..2b27216 100644
--- a/src/containers/param/ParamTextViewer.js
+++ b/src/containers/param/ParamTextViewer.js
@@ -5,7 +5,8 @@ import {changeParam} from "../../actions";
 const mapStateToProps = (state, ownProps) => ({
     rendererIndex: ownProps.rendererIndex,
     paramIndex: ownProps.paramIndex,
-    value: String(state.paramValue[ownProps.rendererIndex][ownProps.paramIndex])
+    value: state.paramValue[ownProps.rendererIndex][ownProps.paramIndex],
+    info: state.paramInfo[ownProps.rendererIndex][ownProps.paramIndex]
 })
 
 const mapDispatchToProps = (dispatch, ownProps) => ({
diff --git a/src/utils/downloader.js b/src/utils/downloader.js
index 75a0548..7cfe63b 100644
--- a/src/utils/downloader.js
+++ b/src/utils/downloader.js
@@ -1,5 +1,3 @@
-import {increaseDownloadData} from "../api/db";
-
 const svgHead = "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n " +
     "<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 20010904//EN\" \"http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd\">\n"
 
@@ -17,8 +15,6 @@ export function saveSvg(value, content) {
     a.download = filename
     a.hidden = true
     a.click()
-
-    increaseDownloadData(value, new Date().toString())
 }
 
 export function saveImg(value, content, width, height) {
@@ -43,26 +39,26 @@ export function saveImg(value, content, width, height) {
     canvas.setAttribute('height', height);
 
     let ctx = canvas.getContext('2d');
-
     let img = document.createElement('img');
-
-
-    img.onload = () => {
-        ctx.fillStyle = 'white'
-        ctx.fillRect(0, 0, width, height)
-        ctx.drawImage(img, 0, 0, width, height);
-        // `download` attr is not well supported
-        // Will result in a download popup for chrome and the
-        // image opening in a new tab for others.
-
-        let a = document.createElement('a');
-        a.setAttribute('href', canvas.toDataURL('image/jpeg', 0.8))
-        a.setAttribute('target', 'download')
-        a.setAttribute('download', filename);
-        a.click();
-    };
-
     img.setAttribute('src', 'data:image/svg+xml;base64,' + btoa(svgData));
 
-    increaseDownloadData(value, new Date().toString())
+    return new Promise(resolve => {
+        img.onload = () => {
+            ctx.fillStyle = 'white'
+            ctx.fillRect(0, 0, width, height)
+            ctx.drawImage(img, 0, 0, width, height);
+            // `download` attr is not well supported
+            // Will result in a download popup for chrome and the
+            // image opening in a new tab for others.
+
+            let a = document.createElement('a');
+            let data = canvas.toDataURL('image/jpeg', 0.8);
+            a.setAttribute('href', data)
+            a.setAttribute('target', 'download')
+            a.setAttribute('download', filename);
+            a.click();
+
+            resolve(data)
+        };
+    })
 }