ionic+AnjularJs实现省市县三级联动效果
内容导读
互联网集市收集整理的这篇技术教程文章主要介绍了ionic+AnjularJs实现省市县三级联动效果，小编现在分享给大家，供广大互联网技能从业者学习和参考。文章包含4664字，纯文字阅读大概需要7分钟。
内容图文
建议对ionic和AnjularJs有一定了解的人可以用到，很多时候我们要用到选择省份、城市、区县的功能，现在就跟着我来实现这个功能吧，用很少的代码（我这里是根据客户的要求，只显示想要显示的部分省份和其相对应的城市、区县，并且这些数据将通过后台放入数据库，并没有引用完整的城市js）
1.首先在所需要的HTML页面需要这些代码，其中的样式都是自己定义的，不喜欢的可以按照自己喜好来写：
<div class="list">
<div class="list" style="border: 0;">
<label class="item item-input item-select" style="border: 0">
<div class="input-label">
<span><span style="color: #6e6e6e"> </span></span>
</div>
<select style="font-size: 16px" ng-model="data.currentProvinceId"
ng-options="pp.Id as pp.RegionName for pp in allProvinces"
ng-change="switchProvince(data.currentProvinceId)">
</select>
</label>
</div>
<div class="list" style="border: 0">
<label class="item item-input item-select" style="border: 0">
<div class="input-label">
<span><span style="color: #6e6e6e"> </span></span>
</div>
<select style="font-size: 16px" ng-options="cc.Id as cc.RegionName for cc in cities"
ng-model="data.currentCityId" ng-change="switchCity(data.currentCityId)">
</select>
</label>
</div>
<div class="list" style="border: 0">
<label class="item item-input item-select" style="border: 0">
<div class="input-label">
<span style="color: #6e6e6e"> </span>
</div>
<select style="font-size: 16px" ng-options="aa.Id as aa.RegionName for aa in areas"
ng-model="data.currentAreaId" ng-change="switchArea(data.currentAreaId)">
</select>
</label>
</div>
</div>
2.相应的控制器controller.js里：
.controller(‘selectCityCtrl‘, function ($rootScope, $scope, $state, $filter, $ionicHistory, selectCitySvc, storageSvc, scollImageSvc, classIficationItemSvc) {
$scope.currentCity = selectCitySvc.getCurrentCity();
$scope.allRegions = selectCitySvc.getCacheAllAreas();
$scope.allProvinces = [
{Id: 0, RegionName: ‘请选择省份‘}
];
$scope.cities = [
{Id: 0, RegionName: ‘请选择城市‘}
];
$scope.areas = [
{Id: 0, RegionName: ‘请选择区/县‘}
];
$scope.data = {
selectName: "",
currentProvinceId: 0,
currentCityId: 0,
currentAreaId: 0
};
function getSelectedRegionId() {
var regionId = $scope.data.currentAreaId;
if (regionId == 0) {
regionId = $scope.data.currentCityId;
}
if (regionId == 0) {
regionId = $scope.data.currentProvinceId;
}
return regionId;
}
function updateSelectRegionName() {
var currentRegion = $filter(‘filter‘)($scope.allRegions, {Id: getSelectedRegionId()}, true)[0];
if (currentRegion) {
$scope.data.selectName = currentRegion.RegionName
} else {
$scope.data.selectName = ‘‘;
}
}
$scope.switchProvince = function (currentProvinceId) {
$scope.data.currentCityId = 0;
$scope.data.currentAreaId = 0;
$scope.cities.splice(1);
$scope.areas.splice(1);
var cities = $filter(‘filter‘)($scope.allRegions, {RegionType: 1, ParentId: currentProvinceId});
for (var i in cities) {
$scope.cities.push(cities[i]);
}
updateSelectRegionName();
};
$scope.switchCity = function (currentCityId) {
$scope.data.currentAreaId = 0;
$scope.areas.splice(1);
var areas = $filter(‘filter‘)($scope.allRegions, {RegionType: 2, ParentId: currentCityId});
for (var i in areas) {
$scope.areas.push(areas[i]);
}
updateSelectRegionName();
};
//增加当切换县区的时候更换服务区名
$scope.switchArea = function (currentAreaId) {
updateSelectRegionName();
};
var allProvinces = $filter(‘filter‘)($scope.allRegions, {RegionType: 0});
for (var i in allProvinces) {
$scope.allProvinces.push(allProvinces[i]);
}
if ($scope.currentCity.RegionType == 0) {
// 如果上次选择省份
$scope.data.currentProvinceId = $scope.currentCity.Id;
$scope.switchProvince($scope.currentCity.Id);
} else if ($scope.currentCity.RegionType == 1) {
var province = $filter(‘filter‘)($scope.allRegions, {Id: $scope.currentCity.ParentId}, true)[0];
$scope.data.currentProvinceId = province.Id;
//省份
$scope.switchProvince(province.Id);
$scope.data.currentCityId = $scope.currentCity.Id;
$scope.switchCity($scope.currentCity.Id);
} else if ($scope.currentCity.RegionType == 2) {
// 如果上次选择县区
var city = $filter(‘filter‘)($scope.allRegions, {Id: $scope.currentCity.ParentId}, true)[0];
var province = $filter(‘filter‘)($scope.allRegions, {Id: city.ParentId}, true)[0];
$scope.data.currentProvinceId = province.Id;
$scope.switchProvince(province.Id);
$scope.data.currentCityId = city.Id;
$scope.switchCity(city.Id);
$scope.data.currentAreaId = $scope.currentCity.Id;
}
$scope.user = {
province: "" || storageSvc.load(‘province.RegionName‘),
city: "" || storageSvc.load(‘city.RegionName‘),
area: "" || storageSvc.load(‘area.RegionName‘),
currentCity: "" || storageSvc.load(‘selectCitySvc.getCurrentCity()‘)
};
});
3.效果如图：
原文：http://www.cnblogs.com/xiaojun-zxj/p/4766704.html
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