如何将参数传递给getCurrentPosition成功回调？ [英] How to pass parameters to getCurrentPosition success call back?

问题描述

如何在调用 navigator.geolocation.getcurrentPosition 时将一个或多个参数传递给成功回调？

How can I pass in one or more parameters to a success call back when calling navigator.geolocation.getcurrentPosition?

如何将 deviceready 从 foundLoc 传递到 getGeoLoc 方法？

var app = {

    onDeviceReady: function () {
        alert = window.alert || navigator.notification.alert;

        app.getGeoLoc('deviceready');
    },

    getGeoLoc: function (id) {
        navigator.geolocation.getCurrentPosition(this.foundLoc, this.noLoc, { timeout: 3 });
    },

    foundLoc: function (position) {
        var parentElement = document.getElementById('deviceready'); 
        var lat = parentElement.querySelector('#lat');
        var long = parentElement.querySelector('#long');

        lat.innerHTML = position.coords.latitude;
        long.innerHTML = position.coords.longitude;
    },

    noLoc: function () {
        alert('device has no GPS or access is denied.');
    }
};

推荐答案

将地理位置回调包裹在函数中（位置） ）{} 如下。然后你可以根据需要为你的实际回调函数添加任意数量的参数。

Wrap the geolocation callback in function(position) {} as follows. Then you can add as many arguments as you want to your actual callback function.

var app = {

    getGeoLoc : function (id) {

        var self = this;

        navigator.geolocation.getCurrentPosition(function(position) {

            var myVar1, myVar2, myVar3; // Define has many variables as you want here

            // From here you can pass the position, as well as any other arguments 
            // you might need. 
            self.foundLoc(position, self, myVar1, myVar2, myVar3)

        }, this.noloc, { timeout : 3});
    },

    foundLoc : function(position, self, myVar1, myVar2, myVar3) {},
};

希望这可以帮助其他任何可能偶然发现此事的人。

Hope this helps anyone else who might stumble upon this.

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