【发布时间】：2020-08-16 08:08:07
【问题描述】：
我想在 google.maps.Geocoder().geocode() 中访问和修改我的全局变量，看起来我无法在其中修改以在函数中返回它 全局变量
public address: any;
这是我的功能
getCoordsCityName(latlng): any {
new google.maps.Geocoder().geocode({ 'latLng': latlng }, function (results, status) {
if (status == google.maps.GeocoderStatus.OK) {
if (results[1]) {
let country = null, countryCode = null, city = null, cityAlt = null, administrativArea = null;
let c, lc, component;
for (let r = 0, rl = results.length; r < rl; r += 1) {
let result = results[r];
if (!city && result.types[0] === 'locality') {
for (c = 0, lc = result.address_components.length; c < lc; c += 1) {
component = result.address_components[c];
if (component.types[0] === 'locality') {
city = component.long_name;
break;
}
}
} else if (!city && !cityAlt && result.types[0] === 'administrative_area_level_1') {
for (c = 0, lc = result.address_components.length; c < lc; c += 1) {
component = result.address_components[c];
if (component.types[0] === 'administrative_area_level_1') {
cityAlt = component.long_name;
break;
}
}
} else if (!country && result.types[0] === 'country') {
country = result.address_components[0].long_name;
administrativArea = result.address_components[0].administrative_area_level_1;
countryCode = result.address_components[0].short_name;
}
if (city && country) {
break;
}
}
this.address = 'Location: ' + country + ', ' + city + ', ' + countryCode;
console.log('ADDRESS Details: ' + this.address);
}
}
});
return this.address;
}
它已经在 console.log 上显示了位置，但我不能在页面上使用它
【问题讨论】：
标签： javascript typescript google-maps ionic-framework geolocation