Question

I’m having such a hard time, I have a flip clock using mootools, then a weather widget using Yahoo API, now I have no idea what is causing

“cannot call methods on panel prior to initialization; attempted to
call method ‘open'”

SO i followed this demo, http://view.jquerymobile.com/master/docs/examples/panels/panel-swipe-open.php#demo-page and now i’m getting the error.

$( document ).on( "pageinit", "#demo-page", function() {
$( document ).on( "swipeleft swiperight", "#demo-page", function( e ) {
    // We check if there is no open panel on the page because otherwise
    // a swipe to close the left panel would also open the right panel (and v.v.).
    // We do this by checking the data that the framework stores on the page element (panel: open).
    if ( $.mobile.activePage.jqmData( "panel" ) !== "open" ) {
        if ( e.type === "swipeleft"  ) {
            $( "#right-panel" ).panel( "open" );
        } else if ( e.type === "swiperight" ) {
            $( "#left-panel" ).panel( "open" );
        }
    }
});

});

I’m sorta at a dead end cause I had it work, feel free to look at my code, http://yaasko.com/gra423/project-4.3/ if you try to swipe left or right the console will output the error.

Please let me know if you can help, first time jquery mobile user!

Answer 1

In case of this msg:

“cannot call methods on panel prior to initialization; attempted to
call method ‘open'”

open panel like this:

$( "#left-panel" ).panel().panel("open");

First panel() call will initialize it and second one will open it.

EDIT :

$(document).on('pagebeforeshow', '#index', function(){        
    $( document ).on( "swipeleft swiperight", "#index", function( e ) {
        if ($.mobile.activePage.find('#left-panel').hasClass('ui-panel-closed') && e.type === "swipeleft") {
            $( "#right-panel" ).panel( "open" ); 
        }    

        if ($.mobile.activePage.find('#right-panel').hasClass('ui-panel-closed') &&  e.type === "swiperight") {
            $( "#left-panel" ).panel( "open" );           
        }        
    });
});