Merge pull request #7 from PicGo/dev

Merge Dev

.github/ISSUE_TEMPLATE/bug-report.md

@@ -7,7 +7,7 @@ about: Something isn't working as expected
 
 **仅限中文与英文**, 其他语言的提交将直接被关闭
 
-### 您当前的flutter doctor信息
+### 您当前的flutter doctor信息或设备信息
 
 ### 预期的表现
 

README.md

@@ -13,15 +13,16 @@
 
 Flutter-PicGo: 一个用于快速上传图片并获取图片URL链接的**手机版**工具
 
-Flutter-PicGo 本体支持如下图床：
+**Flutter-PicGo 本体支持如下图床：**
 
 - GitHub [v1.0+]
 - SM.MS [v1.1+]
 - Gitee [v1.2+]
 - 七牛云 [v1.3+]
 - 阿里云OSS [v1.4+]
+- 腾讯云COS [v1.5+]
 
-> 开发进度可以查看 Projects，会同步更新开发进度
+> 开发进度可以查看 [Projects](https://github.com/PicGo/flutter-picgo/projects)，会同步更新开发进度
 
 # 特色功能
 
@@ -30,13 +31,16 @@ Flutter-PicGo 本体支持如下图床：
 - 适配深色模式，可跟随系统或手动设置
 - 支持将flutter-picgo的配置导出至剪切板
 
+> 基本使用配置与PicGo无异，可参考[配置文档](https://picgo.github.io/PicGo-Doc/zh/guide/config.html#%E5%9B%BE%E5%BA%8A%E5%8C%BA)。
+> 腾讯云COS仅支持v5版配置
+
 # 应用截图
 
 ![](https://github.static.si-yee.com/image_picker_82452E23-BE11-4712-BFBA-8E93038DB410-3851-00000340B21CCF62.png)
 
 # 下载安装
 
-点击此处下载[应用](https://github.com/hackycy/flutter-picgo/releases)。
+点击此处下载应用[releases](https://github.com/hackycy/flutter-picgo/releases)或[蒲公英](https://www.pgyer.com/flutter-picgo)。
 
 Android版直接下载apk安装包或扫码
 

docs/version.json

@@ -0,0 +1,10 @@
+{
+  "iOS": {
+    "versionName": "1.5.2",
+    "versionCode": "12"
+  },
+  "Android": {
+    "versionName": "1.5.1",
+    "versionCode": "12"
+  }
+}

docs/设计文档.md

@@ -29,4 +29,5 @@
 | 3    | 新增Gitee图床记录                                |
 | 4    | 新增Qiniu图床记录                                |
 | 5    | 新增阿里云OSS图床记录                            |
+| 6    | 新增腾讯云COS图床记录                            |
 

lib/api/picgo_api.dart

@@ -0,0 +1,11 @@
+import 'package:dio/dio.dart';
+import 'package:flutter_picgo/utils/net.dart';
+
+class PicgoApi {
+  /// 获取App最新版本
+  static Future getLatestVersion() async {
+    Response res = await NetUtils.getInstance().get(
+        'https://cdn.jsdelivr.net/gh/PicGo/flutter-picgo@dev/docs/version.json');
+    return res;
+  }
+}

lib/api/tcyun_api.dart

@@ -0,0 +1,173 @@
+import 'dart:convert';
+
+import 'package:crypto/crypto.dart';
+import 'package:dio/dio.dart';
+import 'package:flutter_picgo/utils/net.dart';
+import 'package:flutter_picgo/utils/strings.dart';
+
+class TcyunApi {
+  static const String BASE_URL = 'myqcloud.com';
+
+  static const String secretKey = 'secretKey';
+  static const String secretId = 'secretId';
+
+  static Future postObject(String secretId, String secretKey, String bucket, String area, String ext, FormData formData) async {
+    Response res = await NetUtils.getInstance().post(
+      'https://$bucket.cos.$area.$BASE_URL/',
+      data: formData,
+      options: Options(
+        extra: {TcyunApi.secretId: secretId, TcyunApi.secretKey: secretKey},
+        contentType: 'image/$ext'
+      )
+    );
+    return res.headers;
+  }
+
+  static Future deleteobject(String secretId, String secretKey, String bucket,
+      String area, String key) async {
+    Response res = await NetUtils.getInstance().delete(
+        'https://$bucket.cos.$area.$BASE_URL/$key',
+        options: Options(
+          extra: {TcyunApi.secretId: secretId, TcyunApi.secretKey: secretKey},
+        ));
+    return res.headers;
+  }
+
+  /// 构造“策略”（Policy）
+  /// 经过 Base64 编码的“策略”（Policy）内容
+  static String buildPolicy(
+      String bucket, String key, String secretId, String keyTime) {
+    Map<String, dynamic> map = {
+      "expiration": "2030-01-01T00:00:00.000Z",
+      "conditions": [
+        {"bucket": bucket},
+        {"key": key},
+        {"q-sign-algorithm": "sha1"},
+        {"q-ak": secretId},
+        {"q-sign-time": keyTime}
+      ]
+    };
+    return json.encode(map);
+  }
+
+  /// post Signature
+  static String buildSignature(
+      String secretKey, String keyTime, String policy) {
+    /// signkey
+    var hmacsha1Signkey = Hmac(sha1, utf8.encode(secretKey));
+    var signKey = hmacsha1Signkey.convert(utf8.encode(keyTime));
+    // string to sign 
+    var stringToSign = sha1.convert(utf8.encode(policy));
+    // signature
+    var hmacsha1Signature = Hmac(sha1, utf8.encode('$signKey'));
+    var signature = hmacsha1Signature.convert(utf8.encode('$stringToSign'));
+    return '$signature';
+  }
+
+  /// 生成 KeyTime
+  /// 获取当前时间对应的 Unix 时间戳 StartTimestamp，Unix 时间戳是从 UTC（协调世界时，
+  /// 或 GMT 格林威治时间）1970年1月1日0时0分0秒（北京时间 1970年1月1日8时0分0秒）起至现在的总秒数。
+  /// 根据上述时间戳和期望的签名有效时长算出签名过期时间对应的 Unix 时间戳 EndTimestamp。
+  /// 拼接签名有效时间，格式为StartTimestamp;EndTimestamp，即为 KeyTime。
+  /// 示例：1557902800;1557910000
+  static String buildKeyTime() {
+    int startTime = (new DateTime.now().millisecondsSinceEpoch) ~/ 1000;
+    int endTime = startTime + 99999;
+    return '$startTime;$endTime';
+  }
+
+  /// 生成 SignKey
+  /// 使用 HMAC-SHA1 以 SecretKey 为密钥，以 KeyTime 为消息，计算消息摘要（哈希值），即为 SignKey。
+  static String buildSignKey(String secretKey, String keyTime) {
+    // 使用SecertKey对上一步生成的原始字符串计算HMAC-SHA1签名：
+    var hmacsha1 = Hmac(sha1, utf8.encode(secretKey));
+    var sign = hmacsha1.convert(utf8.encode(keyTime));
+    return '$sign';
+  }
+}
+
+/// TcYun验签拦截器
+class TcyunInterceptor extends InterceptorsWrapper {
+  @override
+  Future onRequest(RequestOptions options) async {
+    if (options.path.contains(TcyunApi.BASE_URL)) {
+      /// 生成 KeyTime
+      var keytime = TcyunApi.buildKeyTime();
+
+      /// 生成 SignKey
+      var signKey = TcyunApi.buildSignKey(
+          '${options.extra[TcyunApi.secretKey]}', keytime);
+
+      /// 生成 UrlParamList 和 HttpParameters
+      String urlParamList = '';
+      String httpParameters = '';
+      if (options.queryParameters != null) {
+        options.queryParameters.forEach((key, value) {
+          urlParamList += '${key.toLowerCase()};';
+          httpParameters +=
+              '${key.toLowerCase()}=${isBlank(value) ? '' : value}&';
+        });
+      }
+      if (urlParamList.length > 0) {
+        urlParamList = urlParamList.substring(0, urlParamList.length - 1);
+      }
+      if (httpParameters.length > 0) {
+        httpParameters = httpParameters.substring(0, httpParameters.length - 1);
+      }
+
+      /// 生成 HeaderList 和 HttpHeaders
+      String headerList = '';
+      String httpHeaders = '';
+      Map<String, dynamic> headers = {
+        // 'Date': HttpDate.format(new DateTime.now()),
+        'Host': options.uri.host
+      };
+      headers.addAll(options.headers);
+      if (options.method.toUpperCase() == 'GET' ||
+          options.method.toUpperCase() == 'HEAD' ||
+          options.method.toUpperCase() == 'DELETE' ||
+          options.method.toUpperCase() == 'OPTIONS') {
+        headers.remove('content-type');
+      }
+      if (headers != null) {
+        headers.forEach((key, value) {
+          print('key = $key, value = $value');
+          headerList += '${Uri.encodeComponent(key).toLowerCase()};';
+          httpHeaders +=
+              '${Uri.encodeComponent(key).toLowerCase()}=${Uri.encodeComponent(value)}&';
+        });
+      }
+      if (headerList.length > 0) {
+        headerList = headerList.substring(0, headerList.length - 1);
+      }
+      if (httpHeaders.length > 0) {
+        httpHeaders = httpHeaders.substring(0, httpHeaders.length - 1);
+      }
+
+      /// 生成 HttpString
+      String method = options.method.toLowerCase();
+      String httpString =
+          '$method\n${options.uri.path}\n$httpParameters\n$httpHeaders\n';
+
+      /// 生成 StringToSign
+      String stringtoSign =
+          'sha1\n$keytime\n${sha1.convert(utf8.encode(httpString))}\n';
+
+      /// 生成 Signature
+      var hmacsha1 = Hmac(sha1, utf8.encode(signKey));
+      var sign = hmacsha1.convert(utf8.encode(stringtoSign));
+
+      /// 生成签名
+      var realSign = 'q-sign-algorithm=sha1' +
+          '&q-ak=${options.extra[TcyunApi.secretId]}' +
+          '&q-sign-time=$keytime' +
+          '&q-key-time=$keytime' +
+          '&q-header-list=$headerList' +
+          '&q-url-param-list=$urlParamList' +
+          '&q-signature=$sign';
+      headers.addAll({'Authorization': realSign});
+      options.headers = headers;
+    }
+    return options;
+  }
+}

lib/model/tcyun_config.dart

@@ -0,0 +1,36 @@
+class TcyunConfig {
+  String area;
+  String bucket;
+  String customUrl;
+  String path;
+  String secretId;
+  String secretKey;
+
+  TcyunConfig({
+      this.area,
+      this.bucket,
+      this.customUrl,
+      this.path,
+      this.secretId,
+      this.secretKey});
+
+  TcyunConfig.fromJson(Map<String, dynamic> json) {
+    area = json['area'];
+    bucket = json['bucket'];
+    customUrl = json['customUrl'];
+    path = json['path'];
+    secretId = json['secretId'];
+    secretKey = json['secretKey'];
+  }
+
+  Map<String, dynamic> toJson() {
+    final Map<String, dynamic> data = new Map<String, dynamic>();
+    data['area'] = this.area;
+    data['bucket'] = this.bucket;
+    data['customUrl'] = this.customUrl;
+    data['path'] = this.path;
+    data['secretId'] = this.secretId;
+    data['secretKey'] = this.secretKey;
+    return data;
+  }
+}

lib/resources/pb_type_keys.dart

@@ -8,4 +8,6 @@ class PBTypeKeys {
   static const qiniu = 'qiniu';
 
   static const aliyun = 'aliyun';
+
+  static const tcyun = 'tcyun';
 }

lib/routers/router_handler.dart

@@ -10,6 +10,7 @@ import 'package:flutter_picgo/views/pb_setting_page/github_page/github_repo_page
 import 'package:flutter_picgo/views/pb_setting_page/pb_setting_page.dart';
 import 'package:flutter_picgo/views/pb_setting_page/qiniu_page/qiniu_page.dart';
 import 'package:flutter_picgo/views/pb_setting_page/smms_page/smms_page.dart';
+import 'package:flutter_picgo/views/pb_setting_page/tcyun_page/tcyun_page.dart';
 import 'package:flutter_picgo/views/picgo_setting_page/theme_setting_page.dart';
 import 'package:flutter_picgo/views/upload_page/upload_page.dart';
 import 'package:flutter_picgo/views/pb_setting_page/github_page/github_page.dart';
@@ -114,6 +115,11 @@ var pbsettingAliyunHandler = new Handler(
   handlerFunc: (context, parameters) => AliyunPage(),
 );
 
+// 腾讯云COS图床设置页面
+var pbsettingTcyunHandler = new Handler(
+  handlerFunc: (context, parameters) => TcyunPage(),
+);
+
 // picgo设置页面
 var picgosettingHandler = new Handler(
   handlerFunc: (BuildContext context, Map<String, List<String>> params) =>

lib/routers/routers.dart

@@ -25,9 +25,12 @@ class Routes {
   // --------- qiniu -------------------
   static const String settingPbQiniu = '/setting/pb/qiniu';
   // -----------------------------------
-  // --------- qiniu -------------------
+  // --------- aliyun -------------------
   static const String settingPbAliyun = '/setting/pb/aliyun';
   // -----------------------------------
+  // --------- aliyun -------------------
+  static const String settingPbTcyun = '/setting/pb/tcyun';
+  // -----------------------------------
 
   static void configureRoutes(Router router) {
     router.notFoundHandler = notfoundHandler;
@@ -46,5 +49,6 @@ class Routes {
     router.define(settingPicgoTheme, handler: picggsettingThemeHandler);
     router.define(settingPbQiniu, handler: pbsettingQiniuHandler);
     router.define(settingPbAliyun, handler: pbsettingAliyunHandler);
+    router.define(settingPbTcyun, handler: pbsettingTcyunHandler);
   }
 }

lib/utils/db_provider.dart

@@ -34,7 +34,7 @@ class DbProvider {
     try {
       db = await openDatabase(
         path,
-        version: 5,
+        version: 6,
         onCreate: (db, version) async {
           // 创建pb_setting表
           _initPb(db);
@@ -102,6 +102,9 @@ class DbProvider {
     // 阿里云OSS
     await db.rawInsert(
         'INSERT INTO $TABLE_NAME_PBSETTING(type, path, name, config, visible) VALUES("${PBTypeKeys.aliyun}", "/setting/pb/aliyun", "阿里云OSS图床", NULL, 1)');
+    // 腾讯云COS
+    await db.rawInsert(
+        'INSERT INTO $TABLE_NAME_PBSETTING(type, path, name, config, visible) VALUES("${PBTypeKeys.tcyun}", "/setting/pb/tcyun", "腾讯云COS图床", NULL, 1)');
     // copy data
     // update authors set dynasty_index=(select id  from dynasties where dynasties .name=authors.dynasty) where dynasty in (select name from dynasties )
     if (isExists) {

lib/utils/debounce.dart

@@ -1,18 +0,0 @@
-import 'package:flutter/foundation.dart';
-import 'dart:async';
-
-class Debounce {
-  final int milliseconds;
-  VoidCallback action;
-  Timer _timer;
-
-  Debounce({this.milliseconds});
-
-  run(VoidCallback action) {
-    if (_timer != null) {
-      _timer.cancel();
-    }
-
-    _timer = Timer(Duration(milliseconds: milliseconds), action);
-  }
-}

lib/utils/net.dart

@@ -1,4 +1,5 @@
 import 'package:dio/dio.dart';
+import 'package:flutter_picgo/api/tcyun_api.dart';
 
 const bool inProduction = const bool.fromEnvironment("dart.vm.product");
 
@@ -10,9 +11,13 @@ class NetUtils {
     _dio = new Dio(BaseOptions(
         connectTimeout: 30000, receiveTimeout: 30000, sendTimeout: 30000));
     if (!inProduction) {
+      /// Log
       dio.interceptors
           .add(LogInterceptor(requestBody: true, responseBody: true));
     }
+
+    /// Tcyun Interceptor
+    dio.interceptors.add(TcyunInterceptor());
   }
 
   Dio get dio => _dio;

lib/utils/sql.dart

@@ -11,8 +11,14 @@ class Sql extends BaseModel {
     return await this.query(tableName);
   }
 
-  Future<List> getBySql(String where, List<dynamic> whereArgs) async {
-    return await this.query(tableName, where: where, whereArgs: whereArgs);
+  Future<List> getBySql(String where, List<dynamic> whereArgs,
+      {String orderBy, int limit, int offset}) async {
+    return await this.query(tableName,
+        where: where,
+        whereArgs: whereArgs,
+        orderBy: orderBy,
+        limit: limit,
+        offset: offset);
   }
 
   Future<int> rawUpdate(String sql, [List<dynamic> arguments]) async {

lib/utils/strategy/impl/aliyun_image_upload.dart

@@ -1,6 +1,7 @@
 import 'dart:convert';
 
 import 'package:dio/dio.dart';
+import 'package:flutter/material.dart';
 import 'package:flutter_picgo/api/aliyun_api.dart';
 import 'package:flutter_picgo/model/aliyun_config.dart';
 import 'package:flutter_picgo/model/uploaded.dart';
@@ -29,7 +30,7 @@ class AliyunImageUpload implements ImageUploadStrategy {
   @override
   Future<Uploaded> upload(File file, String renameImage) async {
     String configStr = await ImageUploadUtils.getPBConfig(PBTypeKeys.aliyun);
-    print(configStr);
+    debugPrint(configStr);
     if (isBlank(configStr)) {
       throw AliyunError(error: '读取配置文件错误！请重试');
     }

lib/utils/strategy/impl/qiniu_image_upload.dart

@@ -1,6 +1,5 @@
 import 'dart:convert';
 import 'package:dio/dio.dart';
-import 'package:flutter/material.dart';
 import 'package:path/path.dart' as path;
 import 'package:flutter_picgo/api/qiniu_api.dart';
 import 'package:flutter_picgo/model/qiniu_config.dart';
@@ -37,12 +36,11 @@ class QiniuImageUpload extends ImageUploadStrategy {
         if (isBlank(result.toString())) {
           return uploaded;
         } else {
-          throw new QiniuError(error: result['error'].toString());
+          throw new QiniuError(error: '${result['error']}');
         }
       }
       return uploaded;
     } on DioError catch (e) {
-      print(e.response.data);
       if (e.type == DioErrorType.RESPONSE &&
           e.error.toString().indexOf('400') > 0) {
         throw QiniuError(error: '400 请求报文格式错误');
@@ -100,7 +98,6 @@ class QiniuImageUpload extends ImageUploadStrategy {
       await ImageUploadUtils.saveUploadedItem(uploadedItem);
       return uploadedItem;
     } on DioError catch (e) {
-      debugPrint(e.response.data);
       if (e.type == DioErrorType.RESPONSE &&
           e.error.toString().indexOf('400') > 0) {
         throw QiniuError(error: '400 请求报文格式错误');

lib/utils/strategy/impl/tcyun_image_upload.dart

@@ -0,0 +1,126 @@
+import 'dart:convert';
+
+import 'package:dio/dio.dart';
+import 'package:flutter_picgo/api/tcyun_api.dart';
+import 'package:flutter_picgo/model/tcyun_config.dart';
+import 'package:flutter_picgo/model/uploaded.dart';
+import 'package:flutter_picgo/resources/pb_type_keys.dart';
+import 'package:flutter_picgo/utils/image_upload.dart';
+import 'dart:io';
+
+import 'package:path/path.dart' as path;
+import 'package:flutter_picgo/utils/strategy/image_upload_strategy.dart';
+import 'package:flutter_picgo/utils/strings.dart';
+
+class TcyunImageUpload implements ImageUploadStrategy {
+  @override
+  Future<Uploaded> delete(Uploaded uploaded) async {
+    TcyunUploaddedInfo info;
+    try {
+      info = TcyunUploaddedInfo.fromJson(json.decode(uploaded.info));
+    } catch (e) {}
+    if (info != null) {
+      await TcyunApi.deleteobject(
+          info.secretId, info.secretKey, info.bucket, info.area, info.key);
+    }
+    return uploaded;
+  }
+
+  @override
+  Future<Uploaded> upload(File file, String renameImage) async {
+    String configStr = await ImageUploadUtils.getPBConfig(PBTypeKeys.tcyun);
+    if (isBlank(configStr)) {
+      throw TcyunError(error: '读取配置文件错误！请重试');
+    }
+    TcyunConfig config = TcyunConfig.fromJson(json.decode(configStr));
+    String objectPath = isBlank(config.path)
+        ? renameImage
+        : path.joinAll([config.path, renameImage]);
+
+    /// post
+    String keyTime = TcyunApi.buildKeyTime();
+    String policy = TcyunApi.buildPolicy(
+        config.bucket, objectPath, config.secretId, keyTime);
+    FormData formData = FormData.fromMap({
+      "key": objectPath,
+      "file": await MultipartFile.fromFile(file.path, filename: renameImage),
+      "policy": base64.encode(utf8.encode(policy)),
+      "q-sign-algorithm": "sha1",
+      "q-ak": config.secretId,
+      "q-key-time": keyTime,
+      "q-sign-time": keyTime,
+      "q-signature": TcyunApi.buildSignature(config.secretKey, keyTime, policy)
+    });
+    print(TcyunApi.buildSignature(config.secretKey, keyTime, policy));
+    await TcyunApi.postObject(
+        config.secretId,
+        config.secretKey,
+        config.bucket,
+        config.area,
+        path.extension(renameImage).replaceFirst('.', ''),
+        formData);
+    String imgPath = path.joinAll([
+      isBlank(config.customUrl)
+          ? 'https://${config.bucket}.cos.${config.area}.myqcloud.com'
+          : config.customUrl,
+      objectPath
+    ]);
+    var uploadedItem = Uploaded(-1, '$imgPath', PBTypeKeys.tcyun,
+        info: json.encode(TcyunUploaddedInfo(
+            secretId: config.secretId,
+            secretKey: config.secretKey,
+            area: config.area,
+            key: objectPath,
+            bucket: config.bucket)));
+    await ImageUploadUtils.saveUploadedItem(uploadedItem);
+    return uploadedItem;
+  }
+}
+
+class TcyunError implements Exception {
+  TcyunError({
+    this.error,
+  });
+
+  dynamic error;
+
+  String get message => (error?.toString() ?? '');
+
+  @override
+  String toString() {
+    var msg = 'TcyunError $message';
+    if (error is Error) {
+      msg += '\n${error.stackTrace}';
+    }
+    return msg;
+  }
+}
+
+class TcyunUploaddedInfo {
+  String area;
+  String bucket;
+  String secretId;
+  String secretKey;
+  String key;
+
+  TcyunUploaddedInfo(
+      {this.area, this.bucket, this.secretId, this.secretKey, this.key});
+
+  TcyunUploaddedInfo.fromJson(Map<String, dynamic> json) {
+    area = json['area'];
+    bucket = json['bucket'];
+    secretId = json['secretId'];
+    secretKey = json['secretKey'];
+    key = json['key'];
+  }
+
+  Map<String, dynamic> toJson() {
+    final Map<String, dynamic> data = new Map<String, dynamic>();
+    data['area'] = this.area;
+    data['bucket'] = this.bucket;
+    data['secretId'] = this.secretId;
+    data['secretKey'] = this.secretKey;
+    data['key'] = this.key;
+    return data;
+  }
+}

lib/utils/strategy/upload_strategy_factory.dart

@@ -5,25 +5,38 @@ import 'package:flutter_picgo/utils/strategy/impl/github_image_upload.dart';
 import 'package:flutter_picgo/utils/strategy/image_upload_strategy.dart';
 import 'package:flutter_picgo/utils/strategy/impl/qiniu_image_upload.dart';
 import 'package:flutter_picgo/utils/strategy/impl/smms_image_upload.dart';
+import 'package:flutter_picgo/utils/strategy/impl/tcyun_image_upload.dart';
 import 'package:flutter_picgo/utils/strings.dart';
 
 class UploadStrategyFactory {
+  static Map<String, ImageUploadStrategy> cache = {};
+
   /// UploadStrategy工厂类，负责创建UploadStrategy
   static ImageUploadStrategy getUploadStrategy(String type) {
     if (isBlank(type)) {
       throw new NullThrownError();
     }
-    if (type == PBTypeKeys.github) {
-      return new GithubImageUpload();
-    } else if (type == PBTypeKeys.smms) {
-      return new SMMSImageUpload();
-    } else if (type == PBTypeKeys.gitee) {
-      return new GiteeImageUpload();
-    } else if (type == PBTypeKeys.qiniu) {
-      return new QiniuImageUpload();
-    } else if (type == PBTypeKeys.aliyun) {
-      return new AliyunImageUpload();
+    if (cache[type] == null) {
+      if (type == PBTypeKeys.github) {
+        /// Github
+        cache[type] = new GithubImageUpload();
+      } else if (type == PBTypeKeys.smms) {
+        /// SM.MS
+        cache[type] = new SMMSImageUpload();
+      } else if (type == PBTypeKeys.gitee) {
+        /// Gitee
+        cache[type] = new GiteeImageUpload();
+      } else if (type == PBTypeKeys.qiniu) {
+        /// 七牛
+        cache[type] = new QiniuImageUpload();
+      } else if (type == PBTypeKeys.aliyun) {
+        /// 阿里云
+        cache[type] = new AliyunImageUpload();
+      } else if (type == PBTypeKeys.tcyun) {
+        /// 腾讯云
+        cache[type] = new TcyunImageUpload();
+      }
     }
-    return null;
+    return cache[type];
   }
 }

lib/views/album_page/album_page.dart

@@ -10,6 +10,7 @@ import 'package:flutter_picgo/views/album_page/album_page_presenter.dart';
 import 'package:permission_handler/permission_handler.dart';
 import 'package:toast/toast.dart';
 import 'package:flutter/services.dart';
+import 'package:pull_to_refresh/pull_to_refresh.dart';
 
 class AlbumPage extends StatefulWidget {
   @override
@@ -19,6 +20,10 @@ class AlbumPage extends StatefulWidget {
 class _AlbumPageState extends State<AlbumPage> implements AlbumPageContract {
   AlbumPagePresenter _presenter;
   List<Uploaded> _uploadeds = [];
+  RefreshController _refreshController =
+      RefreshController(initialRefresh: false);
+  int _perPageItemSize = 8;
+  int _currentPage = 0;
 
   _AlbumPageState() {
     _presenter = AlbumPagePresenter(this);
@@ -27,7 +32,7 @@ class _AlbumPageState extends State<AlbumPage> implements AlbumPageContract {
   @override
   void initState() {
     super.initState();
-    _presenter.doLoadUploadedImages();
+    _onRefresh();
   }
 
   @override
@@ -49,8 +54,44 @@ class _AlbumPageState extends State<AlbumPage> implements AlbumPageContract {
               transition: TransitionType.cupertino);
         },
       ),
-      body: RefreshIndicator(
+      body: SmartRefresher(
+          enablePullDown: true,
+          enablePullUp: this._uploadeds.length >= _perPageItemSize,
+          header: ClassicHeader(
+            refreshStyle: RefreshStyle.Follow,
+            idleText: '下拉刷新',
+            releaseText: '释放刷新',
+            completeText: '加载完成',
+            refreshingText: '刷新中',
+            failedText: '加载失败，请重试',
+          ),
+          footer: CustomFooter(
+            builder: (BuildContext context, LoadStatus mode) {
+              Widget body;
+              if (mode == LoadStatus.idle) {
+                body = Text("上拉加载");
+              } else if (mode == LoadStatus.loading) {
+                body = SizedBox(
+                  width: 15,
+                  height: 15,
+                  child: CircularProgressIndicator(),
+                );
+              } else if (mode == LoadStatus.failed) {
+                body = Text("加载失败！点击重试！");
+              } else if (mode == LoadStatus.canLoading) {
+                body = Text("松手,加载更多!");
+              } else {
+                body = Text("没有更多数据了!");
+              }
+              return Container(
+                height: 55.0,
+                child: Center(child: body),
+              );
+            },
+          ),
           onRefresh: _onRefresh,
+          onLoading: _onLoading,
+          controller: _refreshController,
           child: _uploadeds.length > 0 ? albumView() : emptyView()),
     );
   }
@@ -142,35 +183,44 @@ class _AlbumPageState extends State<AlbumPage> implements AlbumPageContract {
   }
 
   Widget emptyView() {
-    return ListView(
-      children: <Widget>[
-        SizedBox(height: 100),
-        Center(
-          child: Container(
+    return Center(
+      child: Column(
+        mainAxisAlignment: MainAxisAlignment.center,
+        children: <Widget>[
+          Container(
             width: 200,
             height: 200,
             child: Image.asset('assets/images/icon_empty_album.png',
                 fit: BoxFit.fill),
           ),
-        ),
-        SizedBox(height: 10),
-        Center(
-          child: Text(
-            '相册暂无任何照片，快点击右下角按钮去上传吧',
-            style: TextStyle(color: Colors.grey),
-          ),
-        )
-      ],
+          Center(
+            child: Text(
+              '相册暂无任何照片，快点击右下角按钮去上传吧',
+              style: TextStyle(color: Colors.grey),
+            ),
+          )
+        ],
+      ),
     );
   }
 
-  Future<dynamic> _onRefresh() async {
+  /// 刷新
+  _onRefresh() async {
+    // _uploadeds.clear();
     setState(() {
-      _uploadeds.clear();
+      this._currentPage = 0;
+      this._uploadeds.clear();
+      _refreshController.resetNoData();
     });
-    return _presenter.doLoadUploadedImages();
+    _presenter.doLoadUploadedImages(_perPageItemSize, this._currentPage);
   }
 
+  /// 上拉加载
+  _onLoading() async {
+    _presenter.doLoadUploadedImages(_perPageItemSize, _currentPage += 1);
+  }
+
+  /// 处理图片点击
   handleTap(int index) {
     Clipboard.setData(ClipboardData(text: _uploadeds[index].path));
     Toast.show('已复制到剪切板', context);
@@ -179,13 +229,29 @@ class _AlbumPageState extends State<AlbumPage> implements AlbumPageContract {
   @override
   void loadUploadedImages(List<Uploaded> uploadeds) {
     setState(() {
-      this._uploadeds.addAll(uploadeds);
+      if (this._currentPage == 0) {
+        _refreshController.refreshCompleted();
+      } else if (this._currentPage > 0 &&
+          (uploadeds == null || uploadeds.length == 0)) {
+        _refreshController.loadNoData();
+      } else {
+        this._currentPage += 1;
+        _refreshController.loadComplete();
+      }
+      if (uploadeds != null && uploadeds.length > 0) {
+        this._uploadeds.addAll(uploadeds);
+      }
     });
   }
 
   @override
   void loadError() {
     Toast.show('加载失败', context);
+    if (this._currentPage == 1) {
+      _refreshController.refreshFailed();
+    } else {
+      _refreshController.loadFailed();
+    }
   }
 
   @override

lib/views/album_page/album_page_presenter.dart

@@ -17,10 +17,11 @@ class AlbumPagePresenter {
 
   AlbumPagePresenter(this._view);
 
-  doLoadUploadedImages() async {
+  doLoadUploadedImages(int limit, int offest) async {
     try {
       var sql = Sql.setTable(TABLE_NAME_UPLOADED);
-      var result = await sql.get();
+      var result = await sql.getBySql(null, null,
+          limit: limit, offset: offest * limit, orderBy: 'id DESC');
       List<Uploaded> uploadeds = result.map((v) {
         return Uploaded.fromMap(v);
       }).toList();

lib/views/pb_setting_page/aliyun_page/aliyun_page.dart

@@ -1,26 +1,20 @@
+import 'dart:convert';
+
 import 'package:flutter/material.dart';
 import 'package:flutter_picgo/model/aliyun_config.dart';
 import 'package:flutter_picgo/model/config.dart';
 import 'package:flutter_picgo/resources/pb_type_keys.dart';
-import 'package:flutter_picgo/views/pb_setting_page/aliyun_page/aliyun_page_presenter.dart';
+import 'package:flutter_picgo/utils/strings.dart';
 import 'package:flutter_picgo/views/pb_setting_page/base_pb_page_state.dart';
 
 class AliyunPage extends StatefulWidget {
   _AliyunPageState createState() => _AliyunPageState();
 }
 
-class _AliyunPageState extends BasePBSettingPageState<AliyunPage>
-    implements AliyunPageContract {
-  AliyunPagePresenter _presenter;
-
-  _AliyunPageState() {
-    _presenter = AliyunPagePresenter(this);
-  }
-
+class _AliyunPageState extends BasePBSettingPageState<AliyunPage> {
   @override
   void initState() {
     super.initState();
-    _presenter.doLoadConfig();
   }
 
   @override
@@ -33,9 +27,15 @@ class _AliyunPageState extends BasePBSettingPageState<AliyunPage>
   String get pbType => PBTypeKeys.aliyun;
 
   @override
-  loadConfig(AliyunConfig config) {
+  onLoadConfig(String config) {
     List<Config> configs = [];
-    config.toJson().forEach((key, value) {
+    Map<String, dynamic> map;
+    if (isBlank(config)) {
+      map = AliyunConfig().toJson();
+    } else {
+      map = AliyunConfig.fromJson(json.decode(config)).toJson();
+    }
+    map.forEach((key, value) {
       Config config;
       if (key == 'accessKeyId') {
         config = Config(

lib/views/pb_setting_page/aliyun_page/aliyun_page_presenter.dart

@@ -1,28 +0,0 @@
-import 'dart:convert';
-
-import 'package:flutter_picgo/model/aliyun_config.dart';
-import 'package:flutter_picgo/resources/pb_type_keys.dart';
-import 'package:flutter_picgo/utils/image_upload.dart';
-import 'package:flutter_picgo/utils/strings.dart';
-
-abstract class AliyunPageContract {
-  loadConfig(AliyunConfig config);
-}
-
-class AliyunPagePresenter {
-  AliyunPageContract _view;
-
-  AliyunPagePresenter(this._view);
-
-  doLoadConfig() async {
-    try {
-      var configStr = await ImageUploadUtils.getPBConfig(PBTypeKeys.aliyun);
-      if (!isBlank(configStr)) {
-        AliyunConfig config = AliyunConfig.fromJson(json.decode(configStr));
-        _view.loadConfig(config);
-      } else {
-        _view.loadConfig(AliyunConfig());
-      }
-    } catch (e) {}
-  }
-}

lib/views/pb_setting_page/base_pb_page_state.dart

@@ -13,6 +13,12 @@ abstract class BasePBSettingPageState<T extends StatefulWidget>
   Map<String, TextEditingController> controllers = {};
   GlobalKey<FormState> _formKey;
 
+  @override
+  void initState() {
+    super.initState();
+    loadConfig();
+  }
+
   @override
   Widget build(BuildContext context) {
     return Scaffold(
@@ -140,6 +146,9 @@ abstract class BasePBSettingPageState<T extends StatefulWidget>
   /// 当前图床类型
   String get pbType;
 
+  /// 子类根据config String自定义需求
+  onLoadConfig(String config);
+
   /// 表单验证
   bool get validate => _formKey?.currentState?.validate() ?? true;
 
@@ -165,6 +174,14 @@ abstract class BasePBSettingPageState<T extends StatefulWidget>
     }
   }
 
+  /// 加载图床配置
+  loadConfig() async {
+    try {
+      var configStr = await ImageUploadUtils.getPBConfig(pbType);
+      onLoadConfig(configStr);
+    } catch (e) {}
+  }
+
   /// 配置默认图床
   _setDefaultPB() async {
     if (!isBlank(pbType)) {

lib/views/pb_setting_page/pb_setting_page.dart

@@ -47,7 +47,7 @@ class _PBSettingPageState extends State<PBSettingPage>
                     return AlertDialog(
                       title: Text('关于使用二维码扫描说明'),
                       content: Text('该功能是为了方便使用了PicGo PC端的用户。\n\n' +
-                          '在PC端已经配置好的用户可以将PicGo的配置文件转换成二维码。\n\n' +
+                          '在PC端已经配置好的用户可以使用PicGo新版的生成图床配置二维码功能。\n\n' +
                           '然后使用Flutter-PicGo直接扫描即可进行配置转换。'),
                       actions: <Widget>[
                         FlatButton(

lib/views/pb_setting_page/qiniu_page/qiniu_page.dart

@@ -1,27 +1,21 @@
+import 'dart:convert';
+
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_picgo/model/config.dart';
 import 'package:flutter_picgo/model/qiniu_config.dart';
 import 'package:flutter_picgo/resources/pb_type_keys.dart';
+import 'package:flutter_picgo/utils/strings.dart';
 import 'package:flutter_picgo/views/pb_setting_page/base_pb_page_state.dart';
-import 'package:flutter_picgo/views/pb_setting_page/qiniu_page/qiniu_page_presenter.dart';
 
 class QiniuPage extends StatefulWidget {
   _QiniuPageState createState() => _QiniuPageState();
 }
 
-class _QiniuPageState extends BasePBSettingPageState<QiniuPage>
-    implements QiniuPageContract {
-  QiniuPagePresenter _presenter;
-
-  _QiniuPageState() {
-    _presenter = QiniuPagePresenter(this);
-  }
-
+class _QiniuPageState extends BasePBSettingPageState<QiniuPage> {
   @override
   void initState() {
     super.initState();
-    _presenter.doLoadConfig();
   }
 
   @override
@@ -34,9 +28,15 @@ class _QiniuPageState extends BasePBSettingPageState<QiniuPage>
       );
 
   @override
-  loadConfig(QiniuConfig config) {
+  onLoadConfig(String config) {
     List<Config> configs = [];
-    config.toJson().forEach((key, value) {
+    Map<String, dynamic> map;
+    if (isBlank(config)) {
+      map = QiniuConfig().toJson();
+    } else {
+      map = QiniuConfig.fromJson(json.decode(config)).toJson();
+    }
+    map.forEach((key, value) {
       Config config;
       if (key == 'accessKey') {
         config = Config(

lib/views/pb_setting_page/qiniu_page/qiniu_page_presenter.dart

@@ -1,28 +0,0 @@
-import 'dart:convert';
-
-import 'package:flutter_picgo/model/qiniu_config.dart';
-import 'package:flutter_picgo/resources/pb_type_keys.dart';
-import 'package:flutter_picgo/utils/image_upload.dart';
-import 'package:flutter_picgo/utils/strings.dart';
-
-abstract class QiniuPageContract {
-  loadConfig(QiniuConfig config);
-}
-
-class QiniuPagePresenter {
-  QiniuPageContract _view;
-
-  QiniuPagePresenter(this._view);
-
-  doLoadConfig() async {
-    try {
-      var configStr = await ImageUploadUtils.getPBConfig(PBTypeKeys.qiniu);
-      if (!isBlank(configStr)) {
-        QiniuConfig config = QiniuConfig.fromJson(json.decode(configStr));
-        _view.loadConfig(config);
-      } else {
-        _view.loadConfig(QiniuConfig());
-      }
-    } catch (e) {}
-  }
-}

lib/views/pb_setting_page/tcyun_page/tcyun_page.dart

@@ -0,0 +1,72 @@
+import 'dart:convert';
+
+import 'package:flutter/material.dart';
+import 'package:flutter_picgo/model/config.dart';
+import 'package:flutter_picgo/model/tcyun_config.dart';
+import 'package:flutter_picgo/resources/pb_type_keys.dart';
+import 'package:flutter_picgo/utils/strings.dart';
+import 'package:flutter_picgo/views/pb_setting_page/base_pb_page_state.dart';
+
+class TcyunPage extends StatefulWidget {
+  _TcyunPageState createState() => _TcyunPageState();
+}
+
+class _TcyunPageState extends BasePBSettingPageState<TcyunPage> {
+  @override
+  AppBar get appbar => AppBar(
+        title: Text('腾讯云COS图床'),
+        centerTitle: true,
+      );
+
+  @override
+  String get pbType => PBTypeKeys.tcyun;
+
+  @override
+  onLoadConfig(String config) {
+    List<Config> configs = [];
+    Map<String, dynamic> map;
+    if (isBlank(config)) {
+      map = TcyunConfig().toJson();
+    } else {
+      map = TcyunConfig.fromJson(json.decode(config)).toJson();
+    }
+    map.forEach((key, value) {
+      Config config;
+      if (key == 'secretId') {
+        config = Config(
+            label: '设定SecretId',
+            placeholder: 'SecretId',
+            needValidate: true,
+            value: value);
+      } else if (key == 'secretKey') {
+        config = Config(
+            label: '设定SecretKey',
+            placeholder: 'SecretKey',
+            needValidate: true,
+            value: value);
+      } else if (key == 'bucket') {
+        config = Config(
+            label: '设定存储空间名',
+            placeholder: '例如test-1253954259',
+            needValidate: true,
+            value: value);
+      } else if (key == 'area') {
+        config = Config(
+            label: '确认存储区域',
+            placeholder: '例如tj',
+            needValidate: true,
+            value: value);
+      } else if (key == 'path') {
+        config = Config(label: '指定存储路径', placeholder: '例如img/', value: value);
+      } else if (key == 'customUrl') {
+        config = Config(
+            label: '设定自定义域名',
+            placeholder: '例如：http://xxx.yyy.cn',
+            value: value);
+      }
+      config.name = key;
+      configs.add(config);
+    });
+    setConfigs(configs);
+  }
+}

lib/views/picgo_setting_page/picgo_setting_page.dart

@@ -1,11 +1,17 @@
+import 'dart:io';
+
+import 'package:dio/dio.dart';
 import 'package:fluro/fluro.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/cupertino.dart';
+import 'package:flutter_picgo/api/picgo_api.dart';
 import 'package:flutter_picgo/routers/application.dart';
 import 'package:flutter_picgo/routers/routers.dart';
 import 'package:flutter_picgo/utils/local_notification.dart';
 import 'package:flutter_picgo/utils/shared_preferences.dart';
+import 'package:package_info/package_info.dart';
 import 'package:toast/toast.dart';
+import 'package:url_launcher/url_launcher.dart';
 
 class PicGoSettingPage extends StatefulWidget {
   @override
@@ -17,6 +23,7 @@ class _PicGoSettingPageState extends State<PicGoSettingPage> {
   bool isTimestampRename = false;
   bool isUploadedTip = false;
   bool isForceDelete = false;
+  bool isNeedUpdate = false;
 
   @override
   void initState() {
@@ -33,6 +40,8 @@ class _PicGoSettingPageState extends State<PicGoSettingPage> {
             u?.getBool(SharedPreferencesKeys.settingIsForceDelete) ?? false;
       });
     });
+    // update
+    _getLatestVersion();
   }
 
   @override
@@ -111,13 +120,26 @@ class _PicGoSettingPageState extends State<PicGoSettingPage> {
                       transition: TransitionType.cupertino);
                 },
               ),
-              ListTile(
-                title: Text('设置显示图床'),
-                onTap: () {},
-              ),
+              // ListTile(
+              //   title: Text('设置显示图床'),
+              //   onTap: () {},
+              // ),
               ListTile(
                 title: Text('检查更新'),
-                onTap: () {},
+                onTap: () {
+                  _handleUpdateTap();
+                },
+                trailing: CircleAvatar(
+                  backgroundColor: Colors.transparent,
+                  child: Container(
+                    width: 8,
+                    height: 8,
+                    // color: Colors.red,
+                    decoration: BoxDecoration(
+                        color: isNeedUpdate ? Colors.red : Colors.transparent,
+                        borderRadius: BorderRadius.circular(4)),
+                  ),
+                ),
               ),
             ],
           );
@@ -131,4 +153,38 @@ class _PicGoSettingPageState extends State<PicGoSettingPage> {
     instance.putBool(key, value);
     Toast.show('保存成功', context);
   }
+
+  _getLatestVersion() async {
+    try {
+      Response res = await PicgoApi.getLatestVersion();
+      PackageInfo info = await PackageInfo.fromPlatform();
+      int version = int.parse(info.buildNumber);
+      debugPrint('$version');
+      int remoteVersion = 0;
+      if (Platform.isAndroid) {
+        remoteVersion = int.parse('${res.data["Android"]["versionCode"]}');
+      } else if (Platform.isIOS) {
+        remoteVersion = int.parse('${res.data["iOS"]["versionCode"]}');
+      }
+      if (version < remoteVersion) {
+        setState(() {
+          this.isNeedUpdate = true;
+        });
+      }
+    } catch (e) {
+      print(e);
+    }
+  }
+
+  _handleUpdateTap() async {
+    if (isNeedUpdate) {
+      if (Platform.isAndroid) {
+        launch('https://www.pgyer.com/flutter-picgo');
+      } else if (Platform.isIOS) {
+        launch('https://apps.apple.com/cn/app/flutter-picgo/id1519714305');
+      }
+    } else {
+      Toast.show('当前已经是最新版本', context);
+    }
+  }
 }

lib/views/upload_page/upload_page.dart

@@ -21,10 +21,11 @@ class _UploadPageState extends State<UploadPage>
     implements UploadPageContract {
   String _title = '';
   String _previewPath = '';
-  String _renameImage;
-  String _clipUrl;
+  String _renameImage = '';
+  String _clipUrl = '';
   TextEditingController _controller;
-  int _selectButton = 1;
+  // 默认不选中则不复制
+  int _selectButton = 0;
 
   // 通知提示
   bool needNotify = false;
@@ -280,16 +281,16 @@ class _UploadPageState extends State<UploadPage>
   }
 
   @override
-  uploadFaild(String errorMsg) {
+  uploadFaild(String errorMsg) async {
     if (needNotify) {
-      _showNotification(0, '上传失败：$errorMsg');
+      await _showNotification(0, '上传失败：$errorMsg');
     }
     Toast.show(errorMsg ?? '', context);
   }
 
   /// 设置剪切板
   setClipData([bool needShowTip = true]) {
-    if (_clipUrl == null || _clipUrl == '') {
+    if (isBlank(_clipUrl)) {
       Toast.show('暂无可获取图片', context);
       return;
     }
@@ -313,11 +314,13 @@ class _UploadPageState extends State<UploadPage>
       default:
         {
           //statements;
-          cliptext = _clipUrl;
+          cliptext = '';
         }
         break;
     }
-    Clipboard.setData(ClipboardData(text: cliptext));
+    if (!isBlank(cliptext)) {
+      Clipboard.setData(ClipboardData(text: cliptext));
+    }
     if (needShowTip) {
       Toast.show('已复制到剪切板', context);
     }
@@ -326,11 +329,11 @@ class _UploadPageState extends State<UploadPage>
   @override
   uploadSuccess(String imageUrl) async {
     if (needNotify) {
-      await _showNotification(1, '上传成功：图片链接已复制到剪切板，原链接：$imageUrl');
+      await _showNotification(1, '上传成功, 图片链接：$imageUrl');
     }
     this._clipUrl = imageUrl;
     setClipData(false);
-    Toast.show('上传成功：已复制到剪切板，图片链接为：$imageUrl', context);
+    Toast.show('上传成功，图片链接为：$imageUrl', context);
   }
 
   Future<void> _showNotification(int id, String body) async {

pubspec.yaml

@@ -15,7 +15,7 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 # In iOS, build-name is used as CFBundleShortVersionString while build-number used as CFBundleVersion.
 # Read more about iOS versioning at
 # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
-version: 1.4.1+9
+version: 1.5.2+12
 
 environment:
   sdk: ">=2.7.0 <3.0.0"
@@ -39,6 +39,7 @@ dependencies:
   provider: ^4.1.3
   crypto: ^2.1.4
   flutter_local_notifications: ^1.4.4+1
+  pull_to_refresh: ^1.6.0
 
 
   # The following adds the Cupertino Icons font to your application.

test/api/tcyun_api_test.dart

@@ -0,0 +1,60 @@
+import 'dart:convert';
+import 'dart:io';
+
+import 'package:dio/dio.dart';
+import 'package:flutter_picgo/api/tcyun_api.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:path/path.dart' as path;
+
+main() {
+  test('测试生成 KeyTime', () {
+    print(TcyunApi.buildKeyTime());
+  });
+
+  test('测试生成 SignKey', () {
+    print(TcyunApi.buildSignKey('adsadaads', TcyunApi.buildKeyTime()));
+  });
+
+  test('测试Api 签名', () async {
+    try {
+      await TcyunApi.deleteobject(
+          'AKID70e28x4gazd17vKiywkITO1NSWHv6s75',
+          'pN0MRGo5HCqDxTqpGPTFlCsHPKzUjhZD',
+          'test-1253954259',
+          'ap-nanjing',
+          'wallhaven-2e9j79.jpg');
+    } catch (e) {
+      print(e);
+    }
+  });
+
+  test('PostObjecy 提交', () async {
+    try {
+      String pathname = path.joinAll(
+          [Directory.current.path, '..\\assets\\' 'images', 'logo.png']);
+      print(pathname);
+      String keyTime = TcyunApi.buildKeyTime();
+      String policy = TcyunApi.buildPolicy('ap-nanjing', 'logo.png',
+          'AKIDvb0B9rqfeOr44kt2ar46rO2cwzl6JwUk', keyTime);
+      print(policy);
+      // TcyunApi.postObject(
+      //     'test-1253954259',
+      //     'ap-nanjing',
+      //     'png',
+      //     FormData.fromMap({
+      //       "key": "logo.png",
+      //       "file": await MultipartFile.fromFile(
+      //           'C:\\Users\\Administrator\\Desktop\\flutter-picgo\\flutter-picgo\\assets\\images\\logo.png',
+      //           filename: 'logo.png'),
+      //       "policy": base64.encode(utf8.encode(policy)),
+      //       "q-sign-algorithm": "sha1",
+      //       "q-ak": "AKIDvb0B9rqfeOr44kt2ar46rO2cwzl6JwUk",
+      //       "q-key-time": keyTime,
+      //       "q-signature": TcyunApi.buildSignature(
+      //           'KOEoR1LL5apX1lFRN4VgZB0nJgmdEbie', keyTime, policy)
+      //     }));
+    } catch (e) {
+      print(e);
+    }
+  });
+}