Jquery-ui sortable doesn't work on touch devices based on Android or IOS

Is there a开发者_Go百科ny fix to make Jquery-ui sortable work on touch devices based on Android or IOS?

I suggest jQuery UI Touch Punch. I've tested it on iOS 5 and Android 2.3 and it works great on both.

The other answer is great but unfortunately it will only work on iOS devices.

Also there was is a breakage caused by later versions of jquery.ui that meant that _touchEnd events were not correctly resetting an internal flag (mouseHandled) in mouse.ui and this was causing exceptions.

Both of these problems should now be fixed with this code.

/*
 * Content-Type:text/javascript
 *
 * A bridge between iPad and iPhone touch events and jquery draggable, 
 * sortable etc. mouse interactions.
 * @author Oleg Slobodskoi  
 * 
 * modified by John Hardy to use with any touch device
 * fixed breakage caused by jquery.ui so that mouseHandled internal flag is reset 
 * before each touchStart event
 * 
 */
(function( $ ) {

    $.support.touch = typeof Touch === 'object';

    if (!$.support.touch) {
        return;
    }

    var proto =  $.ui.mouse.prototype,
    _mouseInit = proto._mouseInit;

    $.extend( proto, {
        _mouseInit: function() {
            this.element
            .bind( "touchstart." + this.widgetName, $.proxy( this, "_touchStart" ) );
            _mouseInit.apply( this, arguments );
        },

        _touchStart: function( event ) {
            if ( event.originalEvent.targetTouches.length != 1 ) {
                return false;
            }

            this.element
            .bind( "touchmove." + this.widgetName, $.proxy( this, "_touchMove" ) )
            .bind( "touchend." + this.widgetName, $.proxy( this, "_touchEnd" ) );

            this._modifyEvent( event );

            $( document ).trigger($.Event("mouseup")); //reset mouseHandled flag in ui.mouse
            this._mouseDown( event );

            return false;           
        },

        _touchMove: function( event ) {
            this._modifyEvent( event );
            this._mouseMove( event );   
        },

        _touchEnd: function( event ) {
            this.element
            .unbind( "touchmove." + this.widgetName )
            .unbind( "touchend." + this.widgetName );
            this._mouseUp( event ); 
        },

        _modifyEvent: function( event ) {
            event.which = 1;
            var target = event.originalEvent.targetTouches[0];
            event.pageX = target.clientX;
            event.pageY = target.clientY;
        }

    });

})( jQuery );

is this meant to replace the mouse.ui js code or to be called after that javascript is loaded? I am unable to get it to work for me on an Android tablet.

EDIT for anyone finding this in the future - got this to work for a Samsung Galaxy Android tablet with the following code:

    /iPad|iPhone|Android/.test( navigator.userAgent ) && (function( $ ) {

var proto =  $.ui.mouse.prototype,
_mouseInit = proto._mouseInit;

$.extend( proto, {
    _mouseInit: function() {
        this.element
        .bind( "touchstart." + this.widgetName, $.proxy( this, "_touchStart" ) );
        _mouseInit.apply( this, arguments );
    },

    _touchStart: function( event ) {
        /* if ( event.originalEvent.targetTouches.length != 1 ) {
            return false;
        } */

        this.element
        .bind( "touchmove." + this.widgetName, $.proxy( this, "_touchMove" ) )
        .bind( "touchend." + this.widgetName, $.proxy( this, "_touchEnd" ) );

        this._modifyEvent( event );

        $( document ).trigger($.Event("mouseup")); //reset mouseHandled flag in ui.mouse
        this._mouseDown( event );

        //return false;           
    },

    _touchMove: function( event ) {
        this._modifyEvent( event );
        this._mouseMove( event );   
    },

    _touchEnd: function( event ) {
        this.element
        .unbind( "touchmove." + this.widgetName )
        .unbind( "touchend." + this.widgetName );
        this._mouseUp( event ); 
    },

    _modifyEvent: function( event ) {
        event.which = 1;
        var target = event.originalEvent.targetTouches[0];
        event.pageX = target.clientX;
        event.pageY = target.clientY;
    }

});

})( jQuery );

I finally found a solution that works with drag handles.

1. Go to this page.
2. In Downloads, grab the "altfix" version, which only applies touch handling to the elements you specify.
3. Add a script tag for the downloaded JS file.
4. Add touch handling for your drag handles in your document ready handler; e.g. $('.handle').addTouch()

I'm using this snippet below in conjunction with jquery-sortable which does allow the drag sort to happen on my iPhone. I am having a problem after I finish the first sort however as any scrolling on the list at all is detected as a drag.

EDIT - see here as well http://bugs.jqueryui.com/ticket/4143 EDIT 2 - I was able to get this working if I use the entire row as the handle. It also fixed a problem I was having where the offset was incorrect after scrolling.

/*
 * A bridge between iPad and iPhone touch events and jquery draggable, sortable etc. mouse interactions.
 * @author Oleg Slobodskoi  
 */
/iPad|iPhone/.test( navigator.userAgent ) && (function( $ ) {

    var proto =  $.ui.mouse.prototype,
        _mouseInit = proto._mouseInit;

    $.extend( proto, {
        _mouseInit: function() {
            this.element
                .bind( "touchstart." + this.widgetName, $.proxy( this, "_touchStart" ) );

            _mouseInit.apply( this, arguments );
        },

        _touchStart: function( event ) {
            if ( event.originalEvent.targetTouches.length != 1 ) {
                return false;
            }

            this.element
                .bind( "touchmove." + this.widgetName, $.proxy( this, "_touchMove" ) )
                .bind( "touchend." + this.widgetName, $.proxy( this, "_touchEnd" ) );

            this._modifyEvent( event );

            this._mouseDown( event );

            return false;           
        },

        _touchMove: function( event ) {
            this._modifyEvent( event );
            this._mouseMove( event );   
        },

        _touchEnd: function( event ) {
            this.element
                .unbind( "touchmove." + this.widgetName )
                .unbind( "touchend." + this.widgetName );
            this._mouseUp( event ); 
        },

        _modifyEvent: function( event ) {
            event.which = 1;
            var target = event.originalEvent.targetTouches[0];
            event.pageX = target.clientX;
            event.pageY = target.clientY;
        }

    });

})( jQuery );

This worked a lot better for me than the selected answer, so I hope this helps other people:

http://code.google.com/p/rsslounge/source/browse/trunk/public/javascript/addtouch.js?r=115.

The other code behaves weird, when you drag an element the potential dropping position is very far from were it should be.

Using Touch Punch is as easy as 1, 2… Just follow these simple steps to enable touch events in your jQuery UI app:

Include jQuery and jQuery UI on your page.

Include Touch Punch after jQuery UI and before its first use.

Please note that if you are using jQuery UI's components, Touch Punch must be included after jquery.ui.mouse.js, as Touch Punch modifies its behavior.

There is no 3. Just use jQuery UI as expected and watch it work at the touch of a finger.

Tested on iPad, iPhone, Android and other touch-enabled mobile devices.