如何禁用僅在手機和平​​板電腦上觸發的模式？

Question

 $(function() { $('.pop').on('click', function() { $('.imagepreview').attr('src', $(this).find('img').attr('src')); $('#imagemodal').modal('show'); }); }); 

 .modal-backdrop.in { opacity: 0.8; } #imagemodal .modal-dialog { width: 70%; position: center; } @media (max-width: 987px) { .pop:hover { opacity: 100; filter: alpha(opacity=100); /* For IE8 and earlier */ } } 

 <link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css"> <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script> <script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script> <div class="row"> <div class="col-md-4"> <a href="#" class="pop"> <img src="images/powwow/powwow_01.jpg" style="width: 100%"> </a> </div> </div> <div class="modal fade" id="imagemodal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true"> <div class="modal-dialog"> <div class="modal-content"> <div class="modal-body"> <button type="button" class="close" data-dismiss="modal"><span aria-hidden="true">&times;</span><span class="sr-only">Close</span> </button> <img src="" class="imagepreview" style="width: 100%;"> </div> </div> </div> </div> 

我有一個要在手機和平​​板電腦上禁用的型號，但要保留更大的屏幕。 我在CSS媒體查詢中嘗試了visibility:hidden和display:none ，但是得到了奇怪的結果。 我想我需要禁用onClick功能，但無法弄清楚僅在較小的屏幕上該怎么做。

Answer 1

由於您使用的是Javascript來顯示模型，因此只需在實際顯示之前檢查設備是否符合您的條件即可。 我已經根據另一個SO帖子編寫了一個自定義函數，以檢查設備是否可移動。 然后，您還可以檢查屏幕寬度是否允許。

用以下代碼替換您的Javascript：

$(function() {
    $('.pop').on('click', function() {
      $('.imagepreview').attr('src', $(this).find('img').attr('src'));
      if($( window ).width()<800 || isMobile()){
         //do substitute operation for mobile screens
      } else {
         $('#imagemodal').modal('show');
      }   
    });   
});
function isMobile() {
  var isMobile = false; //initiate as false
  // device detection
  if (/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|ipad|iris|kindle|Android|Silk|lge |maemo|midp|mmp|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(navigator.userAgent) || /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(navigator.userAgent.substr(0, 4))) isMobile = true;
  return isMobile;
}

完整的工作代碼：

如果是移動設備或屏幕尺寸小於800像素，則不會顯示該模式。 根據需要調整設置。 點擊run code snippet即可查看效果！

 $(function() { $('.pop').on('click', function() { $('.imagepreview').attr('src', $(this).find('img').attr('src')); if ($(window).width() < 800 || isMobile()) { //do substitute operation for mobile screens and delete below 3 lines console.log("model not showed!!"); console.log("isMObile : " + isMobile()); console.log("screen size :" + $(window).width() + "px min is 800px"); } else { $('#imagemodal').modal('show'); } }); }); function isMobile() { var isMobile = false; //initiate as false // device detection if (/(android|bb\\d+|meego).+mobile|avantgo|bada\\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|ipad|iris|kindle|Android|Silk|lge |maemo|midp|mmp|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(navigator.userAgent) || /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|\\-[aw])|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(navigator.userAgent.substr(0, 4))) isMobile = true; return isMobile; } 

 .modal-backdrop.in { opacity: 0.8; } #imagemodal .modal-dialog { width: 70%; position: center; } @media (max-width: 987px) { .pop:hover { opacity: 100; filter: alpha(opacity=100); /* For IE8 and earlier */ } } 

 <link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css"> <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script> <script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script> <div class="row"> <div class="col-md-4"> <a href="#" class="pop"> <img src="images/powwow/powwow_01.jpg" style="width: 100%">click </a> </div> </div> <div class="modal fade" id="imagemodal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true"> <div class="modal-dialog"> <div class="modal-content"> <div class="modal-body"> <button type="button" class="close" data-dismiss="modal"><span aria-hidden="true">&times;</span><span class="sr-only">Close</span> </button> <img src="" class="imagepreview" style="width: 100%;"> </div> </div> </div> </div> 

感謝L.Dia也提到了屏幕尺寸檢查。 我加了支票。

Answer 2

有了Iceman的回復，您還可以根據寬度或平板電腦/移動設備來取消按鈕的綁定：

if( isMobile() || (screen.width <= 800)) {
            $(#yourbutton).unbind('click');
        } 

使用css根據寬度更改按鈕的外觀，不會誘使用戶單擊。

Answer 3

我假設您正在使用Bootstrap。 如果是這樣，則可以使用bootstrap的本機隱藏類，例如hidden-xs等。或者，可以僅使用可見性類，例如visible-lg ； 由於Bootstrap是移動優先框架，因此您的模式不會顯示其他大屏幕設備。 對於您的方案，這很好。

<div class="modal fade visible-lg" id="imagemodal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
  ...
</div>

如果您仍然堅持使用JavaScript解決方案，並且仍然假設您使用的是Bootstrap，那么您使用的是jQuery，這將獲得窗口寬度並允許您控制事件。

$(document).ready(function () {
            var $window = $(window);

            function checkWidth() {
                var windowsize = $window.width();
                if (windowsize < 1200) {
                    $(".pop").click(function (event) {
                        event.preventDefault();
                    });
                }

                else {
                    $(function () {
                        $('.pop').on('click', function () {
                            $('.imagepreview').attr('src', $(this).find('img').attr('src'));
                            $('#imagemodal').modal('show');
                        });
                    });
                }
            }

            checkWidth();
            $(window).resize(checkWidth);
        });