1.在首页 加入 一个元素（加下滑线的）。此元素绑定了两个属性
<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <title>App1</title> <!-- WinJS references --> <link href="//Microsoft.WinJS.1.0/css/ui-dark.css" rel="stylesheet" /> <script src="//Microsoft.WinJS.1.0/js/base.js"></script> <script src="//Microsoft.WinJS.1.0/js/ui.js"></script> <!-- App1 references --> <link href="/css/default.css" rel="stylesheet" /> <script src="/js/default.js"></script> <script src="/js/util.js" type="text/javascript"> </script> </head> <body> <div id="aa" data-win-bind="style.color:color;innerText:text" style="height: 40px; 100px"></div> </body> </html>
2.定义viewmodel， 并监听 viewmodel的属性变化。这样就可以在属性变化的时候，在更新UI的同时，去做想做的事。比如:更改本地存储。首页js 如下：
(function () { "use strict"; WinJS.Binding.optimizeBindingReferences = true; var app = WinJS.Application; var activation = Windows.ApplicationModel.Activation; WinJS.Application.onsettings = function (e) { //添加设置的选项 e.detail.applicationcommands = {// href: 是设置相关信息使用的页面 | title: 就是 设置显示的文字 | color : 对应 settings.html 内 拥有 data-win-control="WinJS.UI.SettingsFlyout" 属性的元素的id "color": { href: "pages/settings.html", title: "更改字体颜色&内容" } }; //把 自定义的设置选项 添加到 设置窗口 WinJS.UI.SettingsFlyout.populateSettings(e); }; app.onactivated = function (args) { if (args.detail.kind == activation.ActivationKind.launch) { //定义一个 ViewModel WinJS.Namespace.define("ViewModel", { Settings: WinJS.Binding.as({ color: "red", text: 'aaaasdasdasdsa' }) }); //需要观察的属性 var settings = ['color', 'text']; //给 viewmodel 绑定 属性改变事件 AddisonUitl.BindViewModelEvent(ViewModel.Settings, settings); WinJS.UI.processAll().then(function () { //绑定数据 WinJS.Binding.processAll(document.getElementById('aa'), ViewModel.Settings); }) } } app.start(); })();
3.因为在 添加自定义设置 选项的时候，需要一个设置页面，下面是 settings.html
<!DOCTYPE HTML> <html> <head> <title></title> <style> #colorsDiv #backbutton { color: #ffd800; border-color: #ffd800; } #colorsDiv div.win-header { color: white; font-weight: bolder; background-color: #0094ff; } </style> <script> WinJS.UI.Pages.define("pages/settings.html", { ready: function () { document.getElementById("backbutton").addEventListener("click", function () { WinJS.UI.SettingsFlyout.show(); var bgColor = document.getElementById('bg').value, text = document.getElementById('text2').value; //更改viewmodel的属性值，触发 viewmodel bind的事件，从而去更改 本地存储的值。 ViewModel.Settings.color = bgColor; ViewModel.Settings.text = text; }); } }); </script> </head> <body> <div id="color" data-win-control="WinJS.UI.SettingsFlyout"> <div class="win-header"> <button id="backbutton" class="win-backbutton"></button> <div class="win-label">Colors</div> </div> <div class="win-content"> <h1>背景颜色</h1> <input id="bg" /> <h1>更改内容</h1> <input id="text2"> </div> </div> </body> </html>
4.下面是 util.js 的代码：
WinJS.Namespace.define('AddisonUitl', {
/// <summary> </summary>
/// <param name="name" type=""> property of ViewModel </param>
/// <param name="eventType" type=""> the key in param name </param>
BindViewModelEvent: function (name, eventType) {
var that = this;
eventType.forEach(function (item, index) {
//载入 用户设置 信息
var valArray = Windows.Storage.ApplicationData.current.localSettings.values;
if (valArray[item] != undefined) {
name[item] = valArray[item];
}
//绑定属性改变事件
name.bind(item, function (newVal, oldVal) {
if (oldVal != null) {
that.storeSetting(item, newVal);
// that.updateViewModel(name, item, newVal);
}
})
})
},
storeSetting: function (key, value) {
var store = Windows.Storage;
store.ApplicationData.current.localSettings.values[key] = value;
},
updateViewModel: function (name, key, value) {
name[key] = value;
}
})