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angularjs - 使用 angularjs 的地理编码服务

转载 作者:行者123 更新时间:2023-12-04 20:38:00 24 4
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我是 angular js 的新手。如何实现地理编码服务?具体来说,当我填写完整地址时,如何自动填充其他字段( postal code,city,country,lat and lng )?

我想实现类似 this page 的东西在 Angular 。
请帮帮我。

我有代码来填充完整地址:

app.directive('googlePlaces', function(){
return {
restrict:'E',
replace:true,
// transclude:true,
scope: {location:'='},
template: '<input type="text" id="fulladdress" name="fulladdress" ng-model="enterprise.fulladdress" class="form-control text-field" placeholder="">',
link: function($scope, elm, attrs){
var autocomplete = new google.maps.places.Autocomplete($("#country")[0], {});
google.maps.event.addListener(autocomplete, 'place_changed', function() {
var place = autocomplete.getPlace();
$scope.location = place.geometry.location.lat() + ',' + place.geometry.location.lng();
$scope.$apply();
});
}
}
});

和 HTML:
<div class="form-group enterprise-form">
<label>Full Address</label>
<google-places location=location></google-places>
</div>

我想再填充两个或三个字段 lat,lng, postal code .我可以扩展我的指令来实现这一点,如果可以,如何实现?

最佳答案

您只需关注 example .

自动完成监听器 'place_change'发生在 angular 的 $digest 循环之外,所以你应该调用 fillInAddress使用 $evalAsync否则在下一个摘要之前您不会看到您的表单更改。

纬度、经度存储在 place 上对象在 geometry.location .

var app = angular.module('app', []);

app.controller('myController', function($scope) {
var components = {
street_number: 'short_name',
route: 'long_name',
locality: 'long_name',
administrative_area_level_1: 'short_name',
country: 'long_name',
postal_code: 'short_name'
};
var autocomplete = new google.maps.places.Autocomplete(document.getElementById('autocomplete'), {
types: ['geocode']
});
google.maps.event.addListener(autocomplete, 'place_changed', function() {
$scope.$evalAsync(fillInAddress);
});

$scope.formData = {};
$scope.ll = {};

function fillInAddress() {
var place = autocomplete.getPlace();
Object.keys(components).forEach(function(component) {
$scope.formData[component] = '';
document.getElementById(component).disabled = false;
});

place.address_components.forEach(function(component) {
var addressType = component.types[0];
if (components[addressType]) {
$scope.formData[addressType] = component[components[addressType]];
}
});
$scope.ll = {
lat: place.geometry.location.G,
lon: place.geometry.location.K
};
}
});
#locationField,
#controls {
position: relative;
width: 480px;
}
#autocomplete {
position: absolute;
top: 0px;
left: 0px;
width: 99%;
}
.label {
text-align: right;
font-weight: bold;
width: 100px;
color: #303030;
}
#address {
border: 1px solid #000090;
background-color: #f0f0ff;
width: 480px;
padding-right: 2px;
}
#address td {
font-size: 10pt;
}
.field {
width: 99%;
}
.slimField {
width: 80px;
}
.wideField {
width: 200px;
}
#locationField {
height: 20px;
margin-bottom: 2px;
}
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.15/angular.min.js"></script>
<script src="https://maps.googleapis.com/maps/api/js?v=3.exp&signed_in=true&libraries=places"></script>

<div ng-app='app' ng-controller='myController'>
<div id="locationField">
<input id="autocomplete" placeholder="Enter your address" type="text">
</div>
<table id="address">
<tr>
<td class="label">Street address</td>
<td class="slimField">
<input ng-model="formData.street_number" class="field" id="street_number" disabled="true" type="text">
</td>
<td class="wideField" colspan="2">
<input ng-model="formData.route" class="field" id="route" disabled="true">
</td>
</tr>
<tr>
<td class="label">City</td>
<td class="wideField" colspan="3">
<input ng-model="formData.locality" class="field" id="locality" disabled="true">
</td>
</tr>
<tr>
<td class="label">State</td>
<td class="slimField">
<input ng-model="formData.administrative_area_level_1" class="field" id="administrative_area_level_1" disabled="true">
</td>
<td class="label">Zip code</td>
<td class="wideField">
<input ng-model="formData.postal_code" class="field" id="postal_code" disabled="true">
</td>
</tr>
<tr>
<td class="label">Country</td>
<td class="wideField" colspan="3">
<input ng-model="formData.country" class="field" id="country" disabled="true">
</td>
</tr>
</table>
<pre>{{ formData | json }}</pre>
<pre>{{ ll | json }}</pre>
</div>

关于angularjs - 使用 angularjs 的地理编码服务,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/31783217/

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