Google 地图 Places API V3 自动完成 - 在输入时选择第一个选项 [英] Google maps Places API V3 autocomplete - select first option on enter

问题描述

我已经按照 http://web.archive.org/web/20120225114154/http://code.google.com:80/intl/sk-SK/apis/maps/documentation/javascript/places.html.它工作得很好，但是我很想知道如何让它在用户按下 Enter 键时从建议中选择第一个选项.我想我需要一些 JS 魔法，但我对 JS 很陌生，不知道从哪里开始.

I have successfuly implemented Google Maps Places V3 autocomplete feature on my input box as per http://web.archive.org/web/20120225114154/http://code.google.com:80/intl/sk-SK/apis/maps/documentation/javascript/places.html. It works nicely, however I would love to know how can I make it select the first option from the suggestions when a user presses enter. I guess I would need some JS magic, but I am very much new to JS and don't know where to start.

提前致谢！

推荐答案

我在最近工作的网站上实现自动完成时遇到了同样的问题.这是我想出的解决方案:

I had the same issue when implementing autocomplete on a site I worked on recently. This is the solution I came up with:

$("input").focusin(function () {
    $(document).keypress(function (e) {
        if (e.which == 13) {
            var firstResult = $(".pac-container .pac-item:first").text();

            var geocoder = new google.maps.Geocoder();
            geocoder.geocode({"address":firstResult }, function(results, status) {
                if (status == google.maps.GeocoderStatus.OK) {
                    var lat = results[0].geometry.location.lat(),
                        lng = results[0].geometry.location.lng(),
                        placeName = results[0].address_components[0].long_name,
                        latlng = new google.maps.LatLng(lat, lng);

                        $(".pac-container .pac-item:first").addClass("pac-selected");
                        $(".pac-container").css("display","none");
                        $("#searchTextField").val(firstResult);
                        $(".pac-container").css("visibility","hidden");

                    moveMarker(placeName, latlng);

                }
            });
        } else {
            $(".pac-container").css("visibility","visible");
        }

    });
});

http://jsfiddle.net/dodger/pbbhH/

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