移动端游览器自适应代码

移动端游览器自适应调整

 1 <script type="text/javascript">// <![CDATA[
 2 var jsVer = 28;
 3
 4         var phoneWidth = parseInt(window.screen.width);
 5
 6         var phoneScale = phoneWidth / 640;
 7
 8         var ua = navigator.userAgent;
 9
10         if (/Android (\d+\.\d+)/.test(ua)) {
11
12             var version = parseFloat(RegExp.$1);
13
14             // andriod 2.3
15
16             if (version > 2.3) {
17
18                 document.write(‘<meta name="viewport" content="width=640, minimum-scale = ‘ + phoneScale + ‘, maximum-scale = ‘ + phoneScale + ‘, target-densitydpi=device-dpi">‘);
19
20                 // andriod 2.3以上
21
22             } else {
23
24                 document.write(‘<meta name="viewport" content="width=640, target-densitydpi=device-dpi">‘);
25
26             }
27
28             // 其他系统
29
30         } else {
31
32             document.write(‘<meta name="viewport" content="width=640, user-scalable=no, target-densitydpi=device-dpi">‘);
33
34         }
35 // ]]></script>