angular.js - angularjs做级联地址查询ng-options点两次才显示为什么
在用angularjs做地址级联选择时，后台数据是已经发送拿到了，但点击第一次时没有显示options，第二次才会显示数据，
html：
<p class="w100 bs-bb clearfloat lh30 pt10 pb10p bb-gray" >
<!-- sel-provance -->
<span class="chooseaddress">省份</span>
<select class="w75 lh30 fr mr10p" ng-model="provincename"
ng-options="province.code as province.province_name for province in provinces" >
<option value="">省份</option>
</select><br>
</p >
<p class="w100 bs-bb clearfloat lh30 pt10 pb10p bb-gray">
<p>Province:{{provincename || 'None'}}</p>
</p>
<p class="w100 bs-bb clearfloat lh30 pt10 pb10p bb-gray" ng-touchend="getCity()">
<span class="chooseaddress">市</span>
<select class="w75 lh30 fr mr10p" ng-model="cityname"
ng-options="city.code as city.city_name for city in cities">
<option value="">市</option>
</select><br>
<!-- sel -->
</p>
<p class="w100 bs-bb clearfloat lh30 pt10 pb10p bb-gray">
<p>City:{{cityname || 'None'}}</p>
</p>
<p class="w100 bs-bb clearfloat lh30 pt10 pb10p bb-gray" ng-touchend="getArea()">
<!-- sel-area -->
<span class="chooseaddress">区/县</span>
<select class="w75 lh30 fr mr10p" ng-model="areaname"
ng-options="area.code as area.area_name for area in areas"></select><br>
</p>
controller：
myApp.controller("newAddressCtrl", function($scope, $state, locals, shareFactory, addressService) {
$scope.selfInfo = shareFactory.getVal("selfInfo");
var token = locals.get('token', '');
var proviceInfo = addressService.provinceService();
proviceInfo.then(function(p) {
$scope.provinces = p;
}, function(p) {
$scope.error = p;
});
$scope.requireValue = true;
$scope.telPattern = new RegExp("^[1][358][0-9]{9}$");
//点击获取对应的市
$scope.getCity = function() {
var cityInfo = addressService.cityService($scope.provincename);
cityInfo.then(function(c) {
$scope.cities = c.cities;
}, function(c) {
$scope.error = c;
})
}
$scope.getArea = function() {
var areaInfo = addressService.areaService($scope.cityname);
areaInfo.then(function(a) {
$scope.areas = a.areas;
}, function(a) {
$scope.error = a;
})
}
$scope.back = function() {
history.go(-1);
}
$scope.copyText = function() {
var saveAddress = addressService.addressSaveService(id, $scope.contacter_name, $scope.provincename.province_id, $scope.cityname.city_id, $scope.areaname.area_id, $scope.postal_code, $scope.phone_number, $scope.detailed_address, token);
saveAddress.then(function(d) {
console.log(d);
}, function(d) {
$scope.error = d;
})
}
})
求助各位大神，请问是哪里的问题？我实在是找不到了T_T
