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  • Autocomplete using jQueryMobile | John Chacko

    How to make an autocomplete or search using jQueryMobile & listView?

    Here is a demo.

    Demo allows to search from a list of contacts. Generates a listview.
    Clicking on an item(contact) will navigate to the page with details of the contact.

    Remember the search results and details page is created dynamically during runtime.

    I prefer to listen to jQM’s ‘pagebeforechange’ event for dynamic applications where pages are generated runtime.

    Below is the code.

    search_list.js

    var app = {
        timer: null,
        init: function () {
            var instance = this;
            $(document).on('pageinit', '#list_page', function () {
                $('#searchBox').on('keyup', function () {
                    var $searchBox = $(this);
                    var searchFor = $.trim($searchBox.val() + "");
                    if(instance.timer) {
                        clearTimeout(instance.timer);
                    }
                    var fn = function () {
                        instance.search(searchFor);
                    };
                    instance.timer = setTimeout(fn, 300);
                });
            });
            $(document).on("pagebeforechange", function (e, data) {
                // We only want to handle changePage() calls where the caller is
                // asking us to load a page by URL
                if(typeof data.toPage === "string") {
                    // We are being asked to load a page by URL
                    var u = $.mobile.path.parseUrl(data.toPage),
                        _re = "#contact";
                    if(u.hash.search(_re) !== -1) {
                        var name = 'id';
                        var results = new RegExp('[\\?&]id=([^&#]*)').exec(data.toPage);
                        var id = results !== null ? results[1] || '' : '';
                        $.ajax({
                            type: "POST",
                            url: "detail.php?id=" + id
                        }).done(function (data) {
                            data = $.parseJSON(data);
                            instance.detailPage(data);
                        });
                        e.preventDefault();
                    }
                }
            });
        },
        search: function (searchFor) {
            var instance = this;
            $.mobile.loading('show');
            console.log(instance);
            $.ajax({
                type: "POST",
                url: "search.php",
                data: {
                    searchfor: encodeURI(searchFor)
                }
            }).done(function (data) {
                data = $.parseJSON(data);
                instance.renderUL(data);
            });
        },
        renderUL: function (result) {
            var tmpl = [],
                len = result.contacts.length;
            if(len > 0) {
                tmpl.push('<ul data-role="listview">');
                for(var i = 0; i < len; i++) {
                    tmpl.push('<li><a href="#contact?id=' + result.contacts[i].id + '">' + result.contacts[i].name + '</a></li>');
                }
                tmpl.push('</ul>');
                $('#searchResults').empty();
                $('#searchResults').append(tmpl.join('')).trigger('create');
            } else {
                $('#searchResults').html('Sorry no results matching your query');
            }
            $.mobile.loading('hide');
        },
        detailPage: function (data) {
            var tmpl = [];
            tmpl.push('<div data-role="page" id="detail_page">');
            tmpl.push('<div data-role="header"><h1>Contact Details</h1><a href="#" data-rel="back" data-role="button">back</a></div>');
            tmpl.push('<div data-role="content">');
            tmpl.push('<div>' + data.contact[0].address + '</div>');
            tmpl.push('<div>' + data.contact[0].city + '</div>');
            tmpl.push('<div>' + data.contact[0].email + '</div>');
            tmpl.push('<div></div>');
            tmpl.push('<div><b>' + data.contact[0].company + '</b></div></p> </div>');
            tmpl.push('</div></div>');
            $.mobile.pageContainer.find('#detail_page').remove();
            $.mobile.pageContainer.append($(tmpl.join('')));
            $.mobile.navigate("#detail_page");
        }
    };
    app.init();