上傳進度條通常是由前面jquery加後端了腳本器腳本來實現了,今天我們介紹的是一款基本php jQuery實現文件上傳進度條效果的例子,具體細節如下。
最近呢,一個專案做一個進度條的效果出來,這個之前還真沒做過。剛好這週沒什麼東西了,就拿這個來充一下數。
文件上傳,得先準備一個「按鈕」:
這個看起來還是不錯的吧,實作也是很簡單的:
<span class="upload-span">开始上传文件</span> <button>太丑了,就用span来做了,可控性强。添加点css: .upload-span{ display: inline-block; width: 120px; height: 40px; color: #FFFFFF; text-align: center; line-height: 40px; background-color: blue; border: 2px solid blue; border-radius:5px; cursor: pointer; letter-spacing: 2px; }
當點擊就會觸發上傳效果,之後再加入事件。
逼真一點,得再加一個遮罩和一個顯示進度條的控件,點選span後,效果大概是這樣子的:
<div class="upload-mask"></div> <div class="upload-component"> <div class="upload-close"> <span class="upload-close-span">关闭</span> </div> <div class="upload-content"> <div class="progress"> <span class="upload-text"></span> <span class="uploaded"></span> </div> <div class="confirm-cancel"> <span class="confirm">确认</span> <span class="cancel">取消</span> </div> </div> </div>
加點css上去:
.upload-mask{ position: absolute; top: 0; left: 0; z-index: 9; width: 100%; height: 100%; background-color: rgba(84,84,84,0.3); display: none; } .upload-component{ position: absolute; z-index: 99; top: 50%; left: 50%; margin-left: -120px; margin-top: -60px; width: 240px; height: 120px; background-color: #FFFFFF; display:none; } .upload-close{ position: relative; height: 30px; background-color: rgb(234,234,234); } .upload-close span{ position: absolute; right: 15px; line-height: 30px; cursor: pointer; } .upload-content,.confirm-cancel{ margin-top: 15px; } .progress{ position:relative; width:90%; height:22px; margin-left: 4.88888%; text-align: center; line-height: 22px; /*background-color: blue;*/ border:1px solid #ccc; } .upload-text{ position:absolute; z-index: 99999; color:red; } .uploaded{ position:absolute; left:0; z-index: 9999; width:0%; height:100%; background-color: blue; color:#FFFFFF; } .confirm-cancel span{ display:inline-block; width:60px; height:30px; line-height: 30px; text-align: center; /*cursor:pointer;*/ background-color:#ccc; cursor:wait; } .confirm{ /*background-color: rgb(111,197,293);*/ margin-left:40%; } .cancel{ /*background-color: rgb(175,194,211);*/ margin-left: 10px; }
為了模擬進度的顯示,這裡用了兩個span:
<div class="progress"> <span class="upload-text"></span> <span class="uploaded"></span> </div>
上面一個是用來顯示百分比的,下面一個用來填色的:
.upload-text{ position:absolute; z-index: 99999; color:red; } .uploaded{ position:absolute; left:0; z-index: 9999; width:0%; height:100%; background-color: blue; color:#FFFFFF; }
為了逼真,為填色的span設定背景色,其寬度就是進度的百分比,最後就用js來模擬進度的變化了:
// 模拟进度 function progressBar() { var max = 100; var init = 0; var uploaded; var test = setInterval(function() { init += 10; uploaded = parseInt((init / max * 100)) + '%'; $uploadTextSpan.text(uploaded).next().css({ width:uploaded }); if (init === 100) { clearInterval(test); $uploadTextSpan.text('上传完成'); $('.confirm-cancel span').css({ cursor:'pointer' }); $('.confirm').css({ backgroundColor:'rgb(111,197,293)' }); $('.cancel').css({ backgroundColor:'rgb(175,194,211)' }) $closeConfirmCancel.on('click',closeConfirmCancel); } else { $closeConfirmCancel.off('click',closeConfirmCancel); $('.upload-close-span').on('click',function(){ clearInterval(test); closeConfirmCancel(); }); $uploadMask.on('click',function() { clearInterval(test); closeConfirmCancel(); }) } },1000); }
JQuery實作檔案上傳進度條,能顯示上傳的百分比等訊息,內容就到這裡了,希望大家能夠喜歡。