sencha touch 我的公用类myUtil（废弃 仅参考）

 /*公共类*/
 Ext.define('myUtil', {
     statics: {
         //store公用加载方法
         storeLoadById: function (id) {
             var store = Ext.getStore(id);
             this.storeLoadByParams(store, null);
         },
         //store加载方法，带参数
         storeLoadByParams: function (store, params) {
             store.removeAll();
             store.setProxy({
                 extraParams: params
             });
             this.storeLoad(store, true);
         },
         //加载stroe
         storeLoad: function (store, isUp) {
             var me = this;
             if (store.getCount() < 1 || isUp) {
                 store.loadPage(1);
             }
         },
         //list->info公用加载方法
         showInfo: function (record, view, url, params, Summary) {
             var me = this;
             if (record.data.Summary) {
                 view.setData(record.data);
                 return;
             }
             Ext.Ajax.request({
                 url: url,
                 params: params,
                 success: function (result, request) {
                     result = Ext.decode(result.responseText);
                     record.set(result);
                     view.setData(record.data);
                 }
             });
         },
         /*为Ext.Viewport添加一个消息提示组件*/
         addMessage: function () {
             Ext.Viewport.setMasked({
                 xtype: 'loadmask',
                 cls: 'message',
                 transparent: true,
                 indicator: false
             });
             this.hideMessage();
         },
         /*显示一个消息提示*/
         showMessage: function (mes, autoHide) {
             var me = this,
             message = this.getMessage();
             message.setMessage(mes);
             message.show();
             //是否自动关闭提示
             if (autoHide) {
                 setTimeout(function () {
                     message.hide();
                 },
                 500);
             }
         },
         /*隐藏消息提示*/
         hideMessage: function () {
             this.getMessage().hide();
         },
         //消息组件
         getMessage: function () {
             return Ext.Viewport.getMasked();
         },
         //向Viewport中push一个视图
         ePop: function (xtype) {
             var me = Ext.Viewport,
             view = Ext.create(xtype);
             //切换
             me.animateActiveItem(view, {
                 type: 'slide',
                 direction: 'left'
             });
         },
         //监控Viewport界面切换,切换时销毁旧视图
         eActiveitemchange: function () {
             var me = Ext.Viewport;
             me.onAfter('activeitemchange',
             function (t, value, oldValue, eOpts) {
                 if (oldValue) {
                     //强制销毁，防止销毁不完全引发错误
                     me.remove(oldValue, true);
                 }
             });
         },
         //json数据转换成xml数据
         iterateJson: function (json) {
             var value = '',
             arr = [];
             for (var tag in json) {
                 value = json[tag];
                 if (Ext.isObject(value) || Ext.isArray(value)) {
                     value = this.iterateJson(value);
                 }
                 if (tag > -1) {
                     arr.push(value);
                 } else if (value != null && value != '') {
                     arr.push(this.format('<{0}>{1}</{0}>', tag, value));
                 }
             }
             return arr.join('');
         },
         //格式化字符串
         format: function () {
             return Ext.util.Format.format.apply(this, arguments);
         },
         //显示pick
         showPick: function (xtype, params) {
             var pick = Ext.create(xtype);
             Ext.Viewport.add(pick);
             pick.show(params);
         },
         //结束pick
         endPick: function (xtype) {
             var pick = Ext.Viewport.down(xtype);
             if (pick) {
                 pick.endPick();
             }
         },
         //重写ajax
         overrideAjax: function () {
             var me = this;
             //开始加载
             Ext.Ajax.on('beforerequest',
             function (connection, options) {
                 if (!options.hidMessage) {
                     me.showMessage('正在努力加载中...');
                 }
             });
             //加载成功
             Ext.Ajax.on('requestcomplete',
             function (connection, options) {
                 me.hideMessage();
             });
             //加载失败
             Ext.Ajax.on('requestexception',
             function (connection, options) {
                 if (!options.hidMessage) {
                     me.showMessage('加载失败，请稍后再试...', true);
                 }
             });
         },
         //重写Pick相关
         overridePick: function () {
             //汉化时间
             Ext.apply(Ext.DateExtras.monthNames, ["一月", "二月", "三月", "四月", "五月", "六月", "七月", "八月", "九月", "十月", "十一月", "十二月"]);
             //汉化DatePicker控件
             Ext.define("Ext.zh.DatePicker", {
                 override: "Ext.picker.Date",
                 config: {
                     yearFrom: 2000,
                     monthText: '月',
                     dayText: '日',
                     yearText: '年'
                 }
             });
             //汉化Picker控件
             Ext.define("Ext.local_zh_cn.Picker", {
                 override: "Ext.picker.Picker",
                 config: {
                     doneButton: '确定',
                     cancelButton: '取消'
                 }
             });
         },
         //安卓返回按钮
         pGback: function () {
             var cardPanel = Ext.getCmp('cardPanel');
             var back = cardPanel.getNavigationBar().backButtonStack;
             if (back.length > 1) {
                 cardPanel.Back();
                 this.isExit = false;
             } else {
                 if (this.isExit) {
                     navigator.app.exitApp();
                 } else {
                     this.isExit = true;
                     cardPanel.showMessage('再按一次退出程序');
                 }
             }
         },
         //上传图片
         openFileSelector: function () {
             /*
             *图片选择方式
             *PHOTOLIBRARY：从相册中选取
             *CAMERA:调用摄像头
             *AVEDPHOTOALBUM：左右不明
             */
             var source = navigator.camera.PictureSourceType.PHOTOLIBRARY;
             /*
             *图片返回格式
             *DATA_URL：64位字符串
             *FILE_URI:返回文件路径
             *NATIVE_URI：返回系统路径 iOS：eg. assets-library://  Android： content://
             */
             var destinationType = navigator.camera.DestinationType.FILE_URI;
             /*
             *媒体类型
             *PICTURE：图片
             *VIDEO:视频 始终返回FILE_URI格式
             *ALLMEDIA：支持任意文件选择
             */
             var mediaType = navigator.camera.MediaType.PICTURE;
             var options = {
                 quality: 50,
                 //图像质量[0-100]
                 destinationType: destinationType,
                 sourceType: source,
                 mediaType: mediaType
             };
             navigator.camera.getPicture(this.uploadFile, this.uploadBroken, options);
         },
         //图片选择失败
         uploadBroken: function (message) {
             this.showMessage(message, true);
         },
         //选择图片后上传
         uploadFile: function (fileURI) {
             var options = new FileUploadOptions();
             options.fileKey = "userfile";
             options.fileName = fileURI.substr(fileURI.lastIndexOf('/') + 1);
             options.mimeType = "multipart/form-data";
             options.chunkedMode = false;
             ft = new FileTransfer();
             var uploadUrl = encodeURI(config.imgUp);
             this.showMessage('正在上传中,请等待...');
             ft.upload(fileURI, uploadUrl, this.uploadSuccess, this.uploadFailed, options);
         },
         //文件上传成功
         uploadSuccess: function (r) {
             var res = Ext.decode(r.responseText);
             this.showMessage(res.message, true);
         },
         //文件上传失败
         uploadFailed: function (error) {
             this.showMessage('图片上传失败...', true);
         },
         //app初始化执行
         inIt: function () {
             this.addMessage();
             this.overrideAjax();
             this.overridePick();
         }
     }
 });