Using Offset And JQuery Slider

I am using offset() with the jquery slider and I am so close to achieving my goal, but it is off slighty. I have it animating using animate to the top CSS coordinates but if you ch

Solution 1:

There are two problems. The first, like Prestaul said, the slider event fires at the "beginning" of the move, not the end, so the offset is wrong. You could fix this by setting a timeout:

$(function(){
    slide: function(event, ui){
        setTimeout(update_slider, 10);
    },
    ...
});
function update_slider()
{
    var offset = $('.ui-slider-handle').offset();
    var value = $('#slider').slider('option', 'value');
    $('#current_value').text('Value is '+value).animate({top:offset.top }, 1000 )
    $('#current_value').fadeIn();
}

The second problem is that the move is instantaneous, while the animation is not, meaning that the label will lag behind the slider. The best I've come up with is this:

var slide_int = null;

$(function(){
    ...
    start: function(event, ui){
        $('#current_value').empty();
        // update the slider every 10ms
        slide_int = setInterval(update_slider, 10);
    },
    stop: function(event, ui){
        // remove the interval
        clearInterval(slide_int);
        slide_int = null;
    },
    ...
});

function update_slider()
{
    var offset = $('.ui-slider-handle').offset();
    var value = $('#slider').slider('option', 'value');

    $('#current_value').text('Value is '+value).css({top:offset.top });
    $('#current_value').fadeIn();
}

By using css instead of animate, you keep it always next to the slider, in exchange for smooth transitions. Hope this helps!

Solution 2:

I had the same problem: the visible value in Jquery Ui slider lags behind from internal value. Fixed the problem by changing the slider event from "slide" to "change".

Solution 3:

You just need to use a different event. "slide" fires before the handle is moved so your value is ending up at the previous handle position. Try the "change" event and see if that gets you there.