Question

我尝试使用带有phonegap的jquery mobile开发应用程序。在第一页输入寄存器编号，然后使用watchposition获取gps值，然后将其位置更新为sqlite数据库。在那我尝试使用clearwatch（）方法停止watchposition。我有以下错误。未捕获的TypeError：对象＃没有方法'clearwatch' 我的index.html

<!Doctype html>
<html>

<head>
    <title>Geo position Aware Vehicle Locator</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0,  maximum-scale=1.0"/>
    <script src="js/jquery-1.9.0.min.js"></script>
    <link rel="stylesheet" href="css/jquery.mobile-1.3.0-rc.1.min.css"/>
    <script src="js/jquery.mobile-1.3.0-rc.1.min.js"></script>
    <script src="js/register.js"></script>
    <script src="js/terminate.js"></script>
    <script src="js/update.js"></script>
    <script>
        document.addEventListener("deviceready", onDeviceReady, false);

        function onDeviceReady() {
            navigator.notification.alert("PhoneGap is ready!");
        }
        $(document).ready(function () {
            $("#regis").click(register);
            $("#start").click(update);
        });
    </script>
</head>

<body>
<div data-role="page" data-theme="b">
    <div data-role="header" data-theme="b">
        <p align="center">Vehicle Registration</a>
    </div>
    <div data-role="content" data-theme="b">
        <label>Give Route Number</label>
        <input type="text" id="rno"> <a href="#second" id="regis" data-transition="pop" data-role="button"
                                        data-inline="true" data-icon="arrow-r" data-iconpos="right" data-mini="true"
                                        data-theme="b">Register</a>

    </div>
</div>
<div id="second" data-role="page" data-theme="b">
    <div data-role="header" data-theme="b">
        <p align="center">Vehicle Status</p>
    </div>
    <div data-role="content" data-theme="b">
        <div class="ui-bar-c ui-corner-all ui-shadow" style="padding:1em;">
            <h1>Current Location:</h1>

            <h3> Latitude:</h3>

            <p id="lat"></p>

            <h3>Longitude:</h3>

            <p id="long"></p>

            <h3>Current Time:</h3>

            <p id="utime"></p> <a id="start" data-role="button" data-theme="b">start</a>
            <a id="terminate" data-role="button" data-icon="delete" data-iconpos="right" data-theme="b">Terminate</a>
        </div>
    </div>
</div>
</body>

</html>

和我的terminate.js

document.addEventListener("deviceready", function () {
    console.log("devicere");
    if (navigator.network.connection.type == Connection.NONE) {
        console.log("check con");
        $("#terminate").text('No Internet Access')
            .attr("data-icon", "delete")
            .button('refresh');
    }

});

var rno = localStorage.getItem('rno');//get value from local storage
console.log("rno=>", rno);
var watch_id = '';    // ID of the geolocation
var tracking_data = []; // Array containing GPS position objects
$("#start").on('click', function () {
    watch_id = navigator.geolocation.watchPosition(
        // Success
        function (position) {
            console.log(position);
            var lat = position.coords.latitude;
            console.log("lat", lat);
            var lon = position.coords.longitude;
            console.log("lon", lon);
            var utime = position.timestamp;
            console.log("position", utime);
            $("#lat").html(lat);
            $("#long").html(lon);
            $('#utime').html(utime);
            console.log('position' + lat + lon + utime);
            $.ajax({
                type: "POST",
                url: "/update",
                data: 'vid=' + rno + '&lat=' + lat + '&lon=' + lon + '&utime=' + utime,
                cache: false
            });
        },

        // Error
        function (error) {
            console.log(error);
        },
        // Settings
        { frequency: 3000, enableHighAccuracy: true });
});   

//stop tracking gps value
$("#terminate").on('click', function () {
    navigator.geolocation.clearwatch(watch_id);
    var url = "/terminate";
    $(location).attr('href', url);

});

Answer 1

应该是navigator.geolocation.clearWatch（watch_id）;有资本＆＃34; W＆＃34;观看。

未捕获的TypeError：对象＃<geolocation>没有方法'clearwatch'</geolocation>

1 个答案: