一.前言
最近在做一個項目，自己感覺系統自帶的alert()方法的彈出框實在是不堪入目，所以在網上找了一些資料，然后自己加工了一下，做出了自己的一個js彈出框，在這里貢獻出來，希望對你有幫助.
二.開始
在這里我們來一個獲取驗證碼的頁面來說明，也是在我項目用用到的一個頁面。我們首先創建一個HTML的靜態頁面。其中代碼如下:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> <title>自定義提示</title> <script src="jquery-1.8.3.js" type="text/javascript"></script> <script src="sAlter.js" type="text/javascript"></script> <link href="GetRelationByPhone.css" rel="stylesheet" type="text/css" /> </head> <body> <div> <form id="form1" action="#" method="post"> <div> <section class="infos"> <label class="fLeft">手機號</label> <input type="hidden" value="oLlIXuNocl66hPYHHt8vwAOLhWTA" name="openid" /> <span class="commeInput"><input type="text" class="no-border" name="phone" id="phone" value="" placeholder="請輸入您的手機號"/> </span> <em id="mob" class="yg-input-close rt12"></em></section> <section class="infos no-boder"> <label class="fLeft">驗證碼</label> <span class="commeInput"><input type="text" class="no-border2" name="code" id="code" value="" placeholder="請輸入驗證碼" /> <input type="button" id="btn" class="btn_mfyzm" value="獲取驗證碼" onclick="getverify()" /> </span> <em id="mob2" class="yg-input-close lt50"></em></section> <div><button type="button" class="btn-pay" onclick="go()" title="確定">確    定</button></div> </div> </form> </div> </body> </html>
sAlter.js就是我們封裝過后的js。我們先看看使用的效果：
來看看我們的頁面js代碼如下：
<script type="text/javascript"> function timer(time) { var btn = $("#btn"); btn.attr("disabled", true); //按鈕禁止點擊 btn.val(time <= 0 ? "發送驗證碼" : ("" + (time) + "秒")); var hander = setInterval(function () { if (time <= 0) { clearInterval(hander); //清除倒計時 btn.val("發送驗證碼"); btn.attr("disabled", false); return false; } else { btn.val("" + (time--) + "秒"); } }, 1000); } //綁定手機號碼 function go() { var phone = $("#phone").val(); if (phone == "" || phone == "請輸入11位手機號碼" || phone == null) { NewAlertBox("warning", "請輸入11位手機號碼", 3000); return; } var myreg = /^(((13[0-9]{1})|(15[0-9]{1})|(18[0-9]{1}))+\d{8})$/; if (!myreg.test($("#phone").val())) { NewAlertBox("warning", "請輸入有效的手機號碼！", 3000); $("#phone").val(""); return; } var code = $("#code").val(); if (code == "" || code == "請輸入驗證碼" || code == null) { NewAlertBox("warning", "請輸入驗證碼！", 3000); return; } // $.ajax({ // url: "RelationCarNoByPhone.ashx?type=2&code=" + code + "&phone=" + phone, // type: "POST", // dataType: "json", // cache: false, // success: function (data) { // if (data.code == "0") { NewAlertBox("warning", "綁定成功！", 3000, function () { WeixinJSBridge.call('closeWindow'); }); // } // else { // NewAlertBox("warning", data.msg, 3000, function () { WeixinJSBridge.call('closeWindow'); }); // } // } // }); } //獲取驗證碼 function getverify() { var phone = $("#phone").val(); if (phone == "" || phone == "請輸入11位手機號碼" || phone == null) { NewAlertBox("warning", "請輸入11位手機號碼", 3000); return; } var myreg = /^(((13[0-9]{1})|(15[0-9]{1})|(18[0-9]{1}))+\d{8})$/; if (!myreg.test($("#phone").val())) { NewAlertBox("warning", "請輸入有效的手機號碼！", 3000); $("#phone").val(""); return; } timer(120); // $.ajax({ // url: "RelationCarNoByPhone.ashx?type=1&phone=" + phone, // type: "POST", // dataType: "json", // cache: false, // success: function (data) { // if (data.code == "0") { NewAlertBox("ok", "驗證碼獲取成功！", 3000); // } else { // NewAlertBox("warning", data.msg, 3000); // } // } // }); } </script>
從上面的代碼中我們看到這個封裝的js使用起來非常簡單 NewAlertBox("warning", "請輸入11位手機號碼", 3000);傳入一些參數就可以達到我們要的效果。
三.核心代碼
我們要的效果也達到了，sAlter.js這個里面究竟是個什么樣子的，其中代碼如下:
/* js彈窗代碼:用戶體驗極佳的Alert提示效果 e-mail:616931@qq.com source:楓伶億博客 */ var t; var argl,funcf; //獲取指定ID的元素 function $xp(id) { return document.getElementById(id); } //通用事件獲取接口 function getEvent() { if(CheckBrowser()=='IE') return window.event; func=getEvent.caller; while(func!=null) { var arg0 = func.arguments[0]; if(arg0) { if((arg0.constructor==Event || arg0.constructor ==MouseEvent) || (typeof(arg0)=="object" && arg0.preventDefault && arg0.stopPropagation)) { return arg0; } } func=func.caller; } return null; } //alert function NewAlertBox(itype,msg,time){//time為消失時間 var msgbg,msgcolor,bordercolor,content,posLeft,posTop,imgName; argl=arguments.length; if(argl>3) {funcf = arguments[3];}//外部方法 //彈出窗口設置 msgbg = "#FFF"; //內容背景 msgcolor = "#f66f15"; //內容顏色 bordercolor = "#d8bfd8"; //邊框顏色 //遮罩背景設置 //判斷圖片類型 if(itype.toUpperCase()=='OK') //提示通過 imgName = '../Img/ts_ok.png'; else if(itype.toUpperCase()=='ERROR') //提示報錯 imgName = '../Img/ts_error.png'; else //提示警告或者其他 imgName = '../Img/ts_warning.png'; content = "<img src='" + imgName + "' alt='img ' style='width:78px;height:78px;'/><br/>" + msg; var sWidth,sHeight; if (document.documentElement && document.documentElement.clientHeight && document.documentElement.clientWidth) { sWidth = document.documentElement.clientWidth; sHeight = document.documentElement.clientHeight; } else { sWidth = screen.availWidth - 20;//防止溢出 if(screen.availHeight > document.body.scrollHeight){ sHeight = screen.availHeight; //少於一屏 }else{ sHeight = document.body.scrollHeight; //多於一屏 } } //創建遮罩背景 var maskObj = document.createElement("div"); maskObj.setAttribute('id','maskdiv'); //maskObj.setAttribute('onclick','CloseMsg()'); maskObj.style.position = "absolute"; maskObj.style.top = "0"; maskObj.style.left = "0"; maskObj.style.background = "#fff"; maskObj.style.filter = "Alpha(opacity=40);"; maskObj.style.opacity = "0.4"; maskObj.style.width = sWidth + "px"; maskObj.style.height = sHeight + "px"; maskObj.style.zIndex = "10000"; document.body.appendChild(maskObj); //創建彈出窗口 var msgObj = document.createElement("div") msgObj.setAttribute("id","msgdiv"); msgObj.setAttribute("onClick","CloseMsg()"); msgObj.style.position ="absolute"; sWidth = 230; sHeight = 180; msgObj.style.width = sWidth + "px"; //msgObj.style.height = sHeight + "px"; var event = getEvent();//申明event if(CheckBrowser()=='IE') { //posLeft = event.clientX + 10; //posTop = event.clientY + document.documentElement.scrollTop; posLeft = (document.documentElement.clientWidth - sWidth) / 2 + "px"; posTop = 50 + document.documentElement.scrollTop + "px"; //posTop = (document.documentElement.clientHeight- sHeight) / 2 + "px"; } else { //posLeft = event.pageX + 10 + "px";//ff下要申明px //posTop = event.pageY + 10 + "px"; posLeft = (document.documentElement.clientWidth - sWidth) / 2 + "px"; posTop = 50 + document.documentElement.scrollTop + "px"; //posTop = (document.documentElement.clientHeight- sHeight) / 2 + "px"; } msgObj.style.top = posTop; msgObj.style.left = posLeft; msgObj.style.fontSize = "18px"; msgObj.style.background = msgbg; msgObj.style.border = "1px solid " + bordercolor; msgObj.style.zIndex = "10001"; //創建內容 var bodyObj = document.createElement("div"); bodyObj.setAttribute("id","msgbody"); bodyObj.style.padding = "10px"; bodyObj.style.lineHeight = "1.5em"; bodyObj.style.color = msgcolor; bodyObj.style.textAlign = "center"; //var txt = document.createTextNode(content); //bodyObj.appendChild(txt); bodyObj.innerHTML = content; //生成窗口 document.body.appendChild(msgObj); $xp("msgdiv").appendChild(bodyObj); if(time != '') t=setTimeout("CloseMsg()",time); else t=setTimeout("CloseMsg()",3000);//默認三秒后自動消失 return false; } //移除對象 function CloseMsg(){ $xp("msgdiv").removeChild($xp("msgbody")); document.body.removeChild($xp("msgdiv")); document.body.removeChild($xp("maskdiv")); clearTimeout(t);//停止計時器 t = null; if(argl>3) {funcf();}//執行外部傳入的函數 } //判斷瀏覽器類型 function CheckBrowser(){ var cb = "Unknown"; if(window.ActiveXObject){ cb = "IE"; }else if(navigator.userAgent.toLowerCase().indexOf("firefox") != -1){ cb = "Firefox"; }else if((typeof document.implementation != "undefined") && (typeof document.implementation.createDocument != "undefined") && (typeof HTMLDocument != "undefined")){ cb = "Mozilla"; }else if(navigator.userAgent.toLowerCase().indexOf("opera") != -1){ cb = "Opera"; } return cb; }