0
我使用這個jQuery代碼(沒有用戶界面),第一次拖動並移動它的圖像時,它的移動平穩,但2d時間移動慢三維時間更慢,等等...任何代碼錯誤?要發佈什麼?我使用jquery拖動和移動圖像,但幾次移動後,運動變得緩慢和緩慢?爲什麼?
(function($)
{
$.fn.drags = function(opt)
{
opt = $.extend({handle:"",cursor:"pointer"}, opt);
if(opt.handle === "")
{
var $el = this;
}
else
{
var $el = this.find(opt.handle);
}
$(this).css('cursor', opt.cursor).on("mousedown", function(e)
{
if(opt.handle === "")
{
var $drag = $(this).addClass('draggable');
}
else
{
var $drag = $(this).addClass('active-handle').parent().addClass('draggable');
}
var z_idx = $drag.css('z-index'), drg_w = $drag.outerWidth(), pos_x = $drag.offset().left + drg_w - e.pageX;
$drag.css('z-index', 1000).parents().on("mousemove", function(e)
{
if($drag.offset().left<438)
{
pos_x =438 + drg_w - e.pageX;
$('.draggable').offset({left:e.pageX + pos_x - drg_w});
return;
}
else if($drag.offset().left>701)
{
pos_x =701 + drg_w - e.pageX;
$('.draggable').offset({left:e.pageX + pos_x - drg_w});
return;
}
else
{
$('.draggable').offset({left:e.pageX + pos_x - drg_w}).on("mouseup", function() {$(this).removeClass('draggable').css('z-index', z_idx);});
$('#rbba_prgrs').width($drag.offset().left-438);
}
});
e.preventDefault(); // disable selection
}).on("mouseup", function()
{
if(opt.handle === "")
{
$(this).removeClass('draggable');
}
else
{
$(this).removeClass('active-handle').parent().removeClass('draggable');
}
});
}
})(jQuery);
我在使用$ drag.parents()綁定之前刪除'mousemove'的偵聽器。unbind(「mousemove」);它工作正常:-)謝謝你...... :-) – user2005049