JQuery Mobile Fixed Toolbar and Footer Bar disappears?

问题

I am using JQuery Mobile version 4.1a and using:

data-position="fixed"

on both header and footer.

When I scroll the content it disappears and then appears again.

Is there any way to make it stay in it's position and not disappear everytime I scroll the page?

Thanks

回答1:

Add data-tap-toggle="false" to the element

Add this to Javascript

$("[data-role=header]").toolbar({ tapToggle: false });

Older versions of jQuery use .fixedtoolbar().

jQuery Mobile Docs - Events

回答2:

I found a solution. I have tested it on my project and it works like a charm.

Here is the URL: https://github.com/yappo/javascript-jquery.mobile.iscroll

It's the same JS solution used by: AppML.

Also, here is a demo:

http://yappo.github.com/projects/jquery.mobile.iscroll/livedemo.html

p.s: It works better on my project than on their actual demo so it's worth a try.

Enjoy :o)

回答3:

I had problems with jquery mobile iscroll in my project. Perhaps some of the libraries I was using were interfering with each other (I am using knockout and jquery.templates along with a bunch of other things). A solution that worked for me was the jquery mobile scrollview. Demos can be viewed here.

http://jquerymobile.com/test/experiments/scrollview/

And the code is here

https://github.com/jquery/jquery-mobile/tree/master/experiments/scrollview/

you need to include

jquery.easing.1.3.js
jquery.mobile.scrollview.js
jquery.mobile.scrollview.css
scrollview.js

I've used this recently on a jquery mobile project and it works really well on iphone 3gs. On my old android HTC magi, it doesn't work that well but none of jquery mobile works well on that device. Note that the scrollview is under experiments and has not been added to the main jquery mobile project.

If you have no luck with iScroll or jquery mobile scrollview, the wink toolkit is another option.

http://www.winktoolkit.org/tutorials/119/

Like iScroll, I was not able to get this to work with my particular project but I don't think I really tried that hard.

回答4:

<div data-role="footer" data-tap-toggle="false"
     data-theme="c" id="footer" data-position="bottom" >
    <h4 align="center" >copyright 2012 @KoshWTF</h4>
    <p>&nbsp;</p>
</div>

P.S you can do that for the header as well if you got any problems with it as well. cheers

回答5:

        $(document).bind("mobileinit", function() {
             $.support.touchOverflow = true;

              $.mobile.touchOverflowEnabled = true;
              $.mobile.fixedToolbars.setTouchToggleEnabled(false);

        });

This works. Tested in Android 2.3

回答6:

I wanted to add a comment to Satch3000's answer, but I didn't have the option of doing that - not sure why. I tried https://github.com/yappo/javascript-jquery.mobile.iscroll, but unfortunately it doesn't work with the latest jquery mobile libs (http://code.jquery.com/mobile/1.0b1/jquery.mobile-1.0b1.min.js)

回答7:

add to your footer class="FixedFooter" and make sure you remove data-position="fixed" from your footer.

add this to your <head>

<style type="text/css">
    .fixedFooter {
position: fixed !important;
left: 0px !important;
right: 0px !important;
bottom: 0px !important;
z-index: 999 !important;
}

cheers.

回答8:

$.mobile.fixedToolbars.setTouchToggleEnabled(false) didn't work for me but editing the javascript-jquery.mobile.iscroll file as follows seems to solve the problem with the iscroll solution proposed by Satch3000 and queried by user418775.

changing the line (99) ...

if ($.mobile.activePage.data("iscroll") == "enable") {

to...

if (($.mobile.activePage) && ($.mobile.activePage.data("iscroll") == "enable")) {

回答9:

I'm french Sorry for my english;

I fix this probleme with this code but it's not perfect (must be adapted to your situation):

$("body").live('scrollstart', function (event, ui) {
    if ($(".divDel").length == 0) {
        //prevents the offset
        var taill = $("[data-role=header]").height();
        $("[data-role=header]").after("<div class='divDel' style='height:" + taill + "px;'></div>");
        $("[data-position=fixed]").css("display", "none");
    }
}).live('vmouseup scrollstop', function (event, ui) {
    $(".divDel").remove();
    $("[data-position=fixed]").css("display", "block");
});
$.mobile.fixedToolbars.setTouchToggleEnabled(false);

回答10:

This is what has worked for me:

Within the function ResizePageContentHeight() add an extra line:

$page.children('.ui-footer').css('position','fixed');

right before:

$content.height(wh - (hh + fh) - (pt + pb))

Full code: (Add this in your jquery.scrollview.js at the bottom)

function ResizePageContentHeight(page) {
   var $page = $.mobile.activePage,
    $content = $page.children( ".ui-content" ),
    hh = $page.children( ".ui-header" ).outerHeight() || 0,
    fh = $page.children( ".ui-footer" ).outerHeight() || 0,
    pt = parseFloat($content.css( "padding-top" )),
    pb = parseFloat($content.css( "padding-bottom" )),
    wh = window.innerHeight;

    $page.children('.ui-footer').css('position','fixed');

    $content.height(wh - (hh + fh) - (pt + pb));

}

$( ":jqmData(role='page')" ).live( "pageshow", function(event) {
    var $page = $( this );

    $page.find( ".ui-content" ).attr( "data-" + $.mobile.ns + "scroll", "y" );
    $page.find( ":jqmData(scroll):not(.ui-scrollview-clip)" ).each(function () {
      var $this = $( this );
      if ( $this.hasClass( "ui-scrolllistview" ) ) {
      $this.scrolllistview();
      } else {
      var st = $this.jqmData( "scroll" ) + "",
      paging = st && st.search(/^[xy]p$/) != -1,
      dir = st && st.search(/^[xy]/) != -1 ? st.charAt(0) : null,
      opts = {
      direction: dir || undefined,
      paging: paging || undefined,
      scrollMethod: $this.jqmData("scroll-method") || undefined
      };
      $this.scrollview( opts );
      }
      });
      ResizePageContentHeight( event.target );
      });
      $( window ).bind( "orientationchange", function( event ) {
      ResizePageContentHeight( $( ".ui-page" ) );
      });

回答11:

It's very simple.

   <div data-role="header" data-position="fixed" data-tap-toggle="false">
    </div>

It works for me.

回答12:

In case you've tried everything and you're still struggling trying to fix this issue (like I was), try to update your jQuery mobile version. In v1.3.1 data-position="fixed" works like it should out of the box. I saw this suggestion nowhere and it's the first thing to check before trying any code so I thought I'd mention it.

回答13:

I was having the same issue, I was able to fix it by adding the following transform code to the fixed position element, (transform: translateZ(0);-webkit-transform: translateZ(0);) that forces the browser to use hardware acceleration to access the device’s graphical processing unit (GPU) to make pixels fly. Web applications, on the other hand, run in the context of the browser, which lets the software do most (if not all) of the rendering, resulting in less horsepower for transitions. But the Web has been catching up, and most browser vendors now provide graphical hardware acceleration by means of particular CSS rules.

Using -webkit-transform: translate3d(0,0,0); will kick the GPU into action for the CSS transitions, making them smoother (higher FPS).

Note: translate3d(0,0,0) does nothing in terms of what you see. it moves the object by 0px in x,y and z axis. It's only a technique to force the hardware acceleration.

#element {
    position: fixed;
    ...
    /* MAGIC HAPPENS HERE */
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
}

回答14:

On JQM 1.3.2 here is my solution

Add data-tap-toggle="false" to the fixed header/footer
Add the CSS below to override the JQM CSS

.ui-header-fixed.ui-fixed-hidden,
.ui-footer-fixed.ui-fixed-hidden{
	position: fixed !important;
}

header.ui-panel-animate {
	-webkit-transition: none !important;
}

header.slidedown.out.reverse {
	-webkit-transform: none !important;
	-webkit-animation-name: none !important;
	-webkit-animation-duration: 0ms !important;
	transform: none !important;
	animation-name: none !important;
	animation-duration: 0ms !important;
}

header.slidedown.in.reverse {
	-webkit-transform: none !important;
	-webkit-animation-name: none !important;
	-webkit-animation-duration: 0ms !important;
	transform: none !important;
	animation-name: none !important;
	animation-duration: 0ms !important;
}

header.slidedown.out {
	-webkit-transform: none !important;
	-webkit-animation-name: none !important;
	-webkit-animation-duration: 0ms !important;
	transform: none !important;
	animation-name: none !important;
	animation-duration: 0ms !important;
}

header.slidedown.in {
	-webkit-transform: none !important;
	-webkit-animation-name: none !important;
	-webkit-animation-duration: 0ms !important;
	transform: none !important;
	animation-name: none !important;
	animation-duration: 0ms !important;
}

header.slideup.out.reverse {
	-webkit-transform: none !important;
	-webkit-animation-name: none !important;
	-webkit-animation-duration: 0ms !important;
	transform: none !important;
	animation-name: none !important;
	animation-duration: 0ms !important;
}

header.slideup.in.reverse {
	-webkit-transform: none !important;
	-webkit-animation-name: none !important;
	-webkit-animation-duration: 0ms !important;
	transform: none !important;
	animation-name: none !important;
	animation-duration: 0ms !important;
}

header.slideup.out {
	-webkit-transform: none !important;
	-webkit-animation-name: none !important;
	-webkit-animation-duration: 0ms !important;
	transform: none !important;
	animation-name: none !important;
	animation-duration: 0ms !important;
}

header.slideup.in {
	-webkit-transform: none !important;
	-webkit-animation-name: none !important;
	-webkit-animation-duration: 0ms !important;
	transform: none !important;
	animation-name: none !important;
	animation-duration: 0ms !important;
}

footer.ui-panel-animate {
	-webkit-transition: none !important;
}

footer.slidedown.out.reverse {
	-webkit-transform: none !important;
	-webkit-animation-name: none !important;
	-webkit-animation-duration: 0ms !important;
	transform: none !important;
	animation-name: none !important;
	animation-duration: 0ms !important;
}

footer.slidedown.in.reverse {
	-webkit-transform: none !important;
	-webkit-animation-name: none !important;
	-webkit-animation-duration: 0ms !important;
	transform: none !important;
	animation-name: none !important;
	animation-duration: 0ms !important;
}

footer.slidedown.out {
	-webkit-transform: none !important;
	-webkit-animation-name: none !important;
	-webkit-animation-duration: 0ms !important;
	transform: none !important;
	animation-name: none !important;
	animation-duration: 0ms !important;
}

footer.slidedown.in {
	-webkit-transform: none !important;
	-webkit-animation-name: none !important;
	-webkit-animation-duration: 0ms !important;
	transform: none !important;
	animation-name: none !important;
	animation-duration: 0ms !important;
}

footer.slideup.out.reverse {
	-webkit-transform: none !important;
	-webkit-animation-name: none !important;
	-webkit-animation-duration: 0ms !important;
	transform: none !important;
	animation-name: none !important;
	animation-duration: 0ms !important;
}

footer.slideup.in.reverse {
	-webkit-transform: none !important;
	-webkit-animation-name: none !important;
	-webkit-animation-duration: 0ms !important;
	transform: none !important;
	animation-name: none !important;
	animation-duration: 0ms !important;
}

footer.slideup.out {
	-webkit-transform: none !important;
	-webkit-animation-name: none !important;
	-webkit-animation-duration: 0ms !important;
	transform: none !important;
	animation-name: none !important;
	animation-duration: 0ms !important;
}

footer.slideup.in {
	-webkit-transform: none !important;
	-webkit-animation-name: none !important;
	-webkit-animation-duration: 0ms !important;
	transform: none !important;
	animation-name: none !important;
	animation-duration: 0ms !important;
}

回答15:

$.mobile.fixedToolbars.setTouchToggleEnabled(false);

This will stop the toolbars from hiding when you click/touch the page.

来源：https://stackoverflow.com/questions/5763619/jquery-mobile-fixed-toolbar-and-footer-bar-disappears

标签

jquery-mobile