我正在尝试在我的代码中放置一个签名板，但因为这是启动一个 div 元素并将涂鸦区域放入其中。我很震惊这样做。 http://www.zetakey.com/codesample-signature.php
<script>
<div id="canvas"></div>
function signature() {
signatureCapture();
var canvas = document.getElementById("newSignature");
var dataURL = canvas.toDataURL("image/png");
alert(dataURL);
}
</script>
那么如何在view中直接发起 提前致谢。
最佳答案
我不确定我是否理解正确，但这里有一个选项可以使用您提供的库。
我的建议是您使用 sap.ui.core.HTML 组件添加相关的 html 代码以实例化签名板。为此，您需要对项目中的 Signature.js 文件(从站点下载)进行微小更改。
请检查代码示例。
index.html
<html>
<head>
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta http-equiv='Content-Type' content='text/html;charset=UTF-8' />
<script src="resources/sap-ui-core.js" id="sap-ui-bootstrap"
data-sap-ui-libs="sap.m"
data-sap-ui-theme="sap_goldreflection">
</script>
<script>
sap.ui.localResources("util");
sap.ui.localResources("test");
jQuery.sap.require("util.Signature");
var view = sap.ui.view({id:"idApp1", viewName:"teste.App", type:sap.ui.core.mvc.ViewType.JS});
view.placeAt("content");
</script>
</head>
<body class="sapUiBody" role="application">
<div id="content"></div>
</body>
</html>
测试/App.view.js
sap.ui.jsview("test.App", {
/** Specifies the Controller belonging to this View.
* In the case that it is not implemented, or that "null" is returned, this View does not have a Controller.
* @memberOf teste.App
*/
getControllerName : function() {
return "test.App";
},
/** Is initially called once after the Controller has been instantiated. It is the place where the UI is constructed.
* Since the Controller is given to this method, its event handlers can be attached right away.
* @memberOf test.App
*/
createContent : function(oController) {
var mySignature = '<div id="wrapper"> ' +
' <p>Zetakey Signature Webapp</p> ' +
' <div id="canvas"> ' +
' Canvas is not supported. ' +
' </div> ' +
' ' +
' <script> ' +
' signatureCapture(); ' +
' </script> ' +
' </div>';
var myhtml = new sap.ui.core.HTML();
myhtml.setContent(mySignature);
var clearBtn = new sap.m.Button({text: "Clear Signature", tap: function(evt) {
signatureClear();
}});
return new sap.m.Page({
title: "Title",
content: [
myhtml,
clearBtn
]
});
},
});
util/Signature.js(已下载，但我添加了第一行使其成为 ui5 模块)
jQuery.sap.declare("util.Signature");
/*************************************************
Signsend - The signature capture webapp sample using HTML5 Canvas
Author: Jack Wong <jack.wong@zetakey.com>
Copyright (c): 2014 Zetakey Solutions Limited, all rights reserved
...THE REST OF THE FILE...
这对你有用吗？ 让我知道。
问候。
关于javascript - sapui5页面如何创建div，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/26378920/