2014-01-13 79 views
0

我試圖使用這裏提供的解決方案Meta viewport ONLY for phones?只在手機上生成一個元視口標記,我將該腳本添加到文檔的頭部分,但它不會被生成,並且我得到一個「語法錯誤:。預期令牌‘)’的錯誤控制檯上元視口標記腳本不工作

下面是我使用的腳本:

<script type="text/javascript"> 
    $(document).ready(function(){ 
     if(navigator.userAgent.match(/Android/i) 
      || navigator.userAgent.match(/webOS/i) 
      || navigator.userAgent.match(/iPhone/i) 
      || navigator.userAgent.match(/iPod/i) 
      || navigator.userAgent.match(/BlackBerry/i) 
      || navigator.userAgent.match(/Windows Phone/i)) { 
      document.write('<meta name='viewport' content='width=device-width, user-scalable=no'>'); 
     } 
    }); 
</script> 

回答

1

,只要解決這個一行:

document.write("<meta name='viewport' content='width=device-width, user-scalable=no'>"); 

您需要將開啓和關閉'替換爲",否則字符串無法正確解析。

完整代碼:

<script type="text/javascript"> 
    $(document).ready(function(){ 
     if(navigator.userAgent.match(/Android/i) 
      || navigator.userAgent.match(/webOS/i) 
      || navigator.userAgent.match(/iPhone/i) 
      || navigator.userAgent.match(/iPod/i) 
      || navigator.userAgent.match(/BlackBerry/i) 
      || navigator.userAgent.match(/Windows Phone/i)) { 
      document.write("<meta name='viewport' content='width=device-width, user-scalable=no'>"); 
     } 
    }); 
</script> 
+0

現在它刪除整個文件的HTML ...在加載頁面的一瞬間內容閃爍秒鐘,然後消失,我得到的是一個空白頁面(在Web檢查器中實際的HTML是空的) –

+1

而不是'document.write',我建議使用更可靠的方法,如在這個SO問題中給出的:http://stackoverflow.com/questions/3588628/can-i-change-the-viewport-meta-tag-in-mobile-safari-on-the-fly – Ryan

+0

完美的是,使用'('head')。append'而不是'document.write'完成了這個訣竅。 –

0

你需要使用雙括號"然後單括號內'

你需要逃跑第二組括號這樣\'

讓你的編碼變成

<script type="text/javascript"> 
    $(document).ready(function(){ 
     if(navigator.userAgent.match(/Android/i) 
      || navigator.userAgent.match(/webOS/i) 
      || navigator.userAgent.match(/iPhone/i) 
      || navigator.userAgent.match(/iPod/i) 
      || navigator.userAgent.match(/BlackBerry/i) 
      || navigator.userAgent.match(/Windows Phone/i)) { 
      document.write("<meta name='viewport' content='width=device-width, user-scalable=no'>"); 
     } 
    }); 
</script> 
1

爲了檢測移動瀏覽器試試這個:http://detectmobilebrowsers.com/

(function(a){ 
    if(/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm(os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino/i.test(a) 
     || /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s)|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp(i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac(|\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt(|\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg(g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v)|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v)|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-|)|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(a.substr(0,4))) 
    document.write("<meta name='viewport' content='width=device-width, user-scalable=no'>"); 
})(navigator.userAgent||navigator.vendor||window.opera);