Javascript 谷歌地图,无法清除/隐藏标记
我一直在试图隐藏/清除地图上的标记。我看了谷歌的文档,找到了正确的代码,我也看了这里,看到了一些答案,但似乎什么都不适合我,我添加了一个清晰的地图按钮并创建了一个函数,但这不起作用 此外,我还尝试添加地理位置方面的内容,但这一点也不起作用,然而,当我使用谷歌api提供的代码时,它就起作用了,而当我用代码实现它时,它就不起作用了 我不知道我是否把代码放错地方了,如果有任何帮助,我将不胜感激Javascript 谷歌地图,无法清除/隐藏标记,javascript,google-maps,google-maps-api-3,Javascript,Google Maps,Google Maps Api 3,我一直在试图隐藏/清除地图上的标记。我看了谷歌的文档,找到了正确的代码,我也看了这里,看到了一些答案,但似乎什么都不适合我,我添加了一个清晰的地图按钮并创建了一个函数,但这不起作用 此外,我还尝试添加地理位置方面的内容,但这一点也不起作用,然而,当我使用谷歌api提供的代码时,它就起作用了,而当我用代码实现它时,它就不起作用了 我不知道我是否把代码放错地方了,如果有任何帮助,我将不胜感激 var map; var infoWindow; var service; functio
var map;
var infoWindow;
var service;
function initMap() {
map = new google.maps.Map(document.getElementById('map'), {
center: {lat: 51.545213, lng: -0.0307699},
zoom: 15,
styles: [{
stylers: [{visibility: 'simplified'}]
}, {
elementType: 'labels',
stylers: [{visibility: 'on'}]
}]
});
var input = /** @type {!HTMLInputElement} */(
document.getElementById('pac-input'));
var types = document.getElementById('type-selector');
map.controls[google.maps.ControlPosition.TOP_LEFT].push(input);
map.controls[google.maps.ControlPosition.TOP_LEFT].push(types);
var autocomplete = new google.maps.places.Autocomplete(input);
autocomplete.bindTo('bounds', map);
var infowindow = new google.maps.InfoWindow();
var marker = new google.maps.Marker({
map: map,
anchorPoint: new google.maps.Point(0, -29)
});
autocomplete.addListener('place_changed', function() {
infowindow.close();
marker.setVisible(false);
var place = autocomplete.getPlace();
if (!place.geometry) {
// User entered the name of a Place that was not suggested and
// pressed the Enter key, or the Place Details request failed.
window.alert("No details available for input: '" + place.name + "'");
return;
}
// If the place has a geometry, then present it on a map.
if (place.geometry.viewport) {
map.fitBounds(place.geometry.viewport);
} else {
map.setCenter(place.geometry.location);
map.setZoom(17); // Why 17? Because it looks good.
}
marker.setIcon(/** @type {google.maps.Icon} */({
url: place.icon,
size: new google.maps.Size(71, 71),
origin: new google.maps.Point(0, 0),
anchor: new google.maps.Point(17, 34),
scaledSize: new google.maps.Size(35, 35)
}));
marker.setPosition(place.geometry.location);
marker.setVisible(true);
var address = '';
if (place.address_components) {
address = [
(place.address_components[0] && place.address_components[0].short_name || ''),
(place.address_components[1] && place.address_components[1].short_name || ''),
(place.address_components[2] && place.address_components[2].short_name || '')
].join(' ');
}
infowindow.setContent('<div><strong>' + place.name + '</strong><br>' + address);
infowindow.open(map, marker);
});
// Sets a listener on a radio button to change the filter type on Places
// Autocomplete.
function setupClickListener(id, types) {
var radioButton = document.getElementById(id);
radioButton.addEventListener('click', function() {
autocomplete.setTypes(types);
});
}
setupClickListener('changetype-all', []);
setupClickListener('changetype-address', ['address']);
setupClickListener('changetype-establishment', ['establishment']);
setupClickListener('changetype-geocode', ['geocode']);
infoWindow = new google.maps.InfoWindow();
service = new google.maps.places.PlacesService(map);
// The idle event is a debounced event, so we can query & listen without
// throwing too many requests at the server.
map.addListener('idle', performSearch(places));
}
function handleLocationError(browserHasGeolocation, infoWindow, pos) {
infoWindow.setPosition(pos);
infoWindow.setContent(browserHasGeolocation ?
'Error: The Geolocation service failed.' :
'Error: Your browser doesn\'t support geolocation.');
}
function performSearch(places) {
var places = places;
var request = {
bounds: map.getBounds(),
keyword: places
};
service.radarSearch(request, callback);
}
function callback(results, status) {
if (status !== google.maps.places.PlacesServiceStatus.OK) {
console.error(status);
return;
}
for (var i = 0, result; result = results[i]; i++) {
addMarker(result);
}
}
function addMarker(place) {
var marker = new google.maps.Marker({
map: map,
position: place.geometry.location,
// icon: {
// url: 'https://developers.google.com/maps/documentation/javascript/images/circle.png',
//anchor: new google.maps.Point(10, 10),
//scaledSize: new google.maps.Size(10, 17)
//}
});
google.maps.event.addListener(marker, 'click', function() {
service.getDetails(place, function(result, status) {
if (status !== google.maps.places.PlacesServiceStatus.OK) {
console.error(status);
return;
}
infoWindow.setContent(result.name);
infoWindow.open(map, marker);
});
});
}
function initAutocomplete() {
var map = new google.maps.Map(document.getElementById('map'), {
center: { lat: -33.8688, lng: 151.2195 },
zoom: 13,
mapTypeId: 'roadmap'
});
// Create the search box and link it to the UI element.
var searchInput = document.getElementById('pac-input');
var searchBtn = document.getElementById('search-button');
var searchBox = new google.maps.places.SearchBox(searchInput);
map.controls[google.maps.ControlPosition.TOP_LEFT].push(searchInput);
map.controls[google.maps.ControlPosition.TOP_LEFT].push(searchBtn);
// Bias the SearchBox results towards current map's viewport.
map.addListener('bounds_changed', function () {
searchBox.setBounds(map.getBounds());
});
var markers = [];
// Listen for the event fired when the user selects a prediction and retrieve
// more details for that place.
searchBox.addListener('places_changed', function () {
//displaySearchResults(map, searchBox, markers);
});
searchBtn.onclick = function () {
displaySearchResults(map,searchBox,markers);
}
}
function displaySearchResults(map, searchBox, markers) {
var places = searchBox.getPlaces();
if (places.length == 0) {
return;
}
// Clear out the old markers.
// For each place, get the icon, name and location.
var bounds = new google.maps.LatLngBounds();
places.forEach(function (place) {
if (!place.geometry) {
console.log("Returned place contains no geometry");
return;
}
var icon = {
url: place.icon,
size: new google.maps.Size(71, 71),
origin: new google.maps.Point(0, 0),
anchor: new google.maps.Point(17, 34),
scaledSize: new google.maps.Size(25, 25)
};
// Create a marker for each place.
markers.push(new google.maps.Marker({
map: map,
icon: icon,
title: place.name,
position: place.geometry.location
}));
function clearMarkers() {
for (var i = 0; i < markers.length; i++) {
markers[i].setMap(map);
}
}
if (place.geometry.viewport) {
// Only geocodes have viewport.
bounds.union(place.geometry.viewport);
} else {
bounds.extend(place.geometry.location);
}
});
map.fitBounds(bounds);
}
var映射;
var信息窗口;
var服务;
函数initMap(){
map=new google.maps.map(document.getElementById('map'){
中心:{lat:51.545213,lng:-0.0307699},
缩放:15,
风格:[{
样式器:[{visibility:'simplified'}]
}, {
elementType:'标签',
样式器:[{visibility:'on'}]
}]
});
变量输入=/**@type{!HTMLInputElement}*/(
document.getElementById('pac-input');
var types=document.getElementById('type-selector');
map.controls[google.maps.ControlPosition.TOP_LEFT].push(输入);
map.controls[google.maps.ControlPosition.TOP\u LEFT].push(类型);
var autocomplete=new google.maps.places.autocomplete(输入);
autocomplete.bindTo('bounds',map);
var infowindow=new google.maps.infowindow();
var marker=new google.maps.marker({
地图:地图,
主播点:新google.maps.Point(0,-29)
});
autocomplete.addListener('place\u changed',function(){
infowindow.close();
marker.setVisible(假);
var place=autocomplete.getPlace();
如果(!place.geometry){
//用户输入了未建议的地点的名称,然后
//按Enter键,或Place Details请求失败。
window.alert(“没有可供输入的详细信息:“+place.name+””);
回来
}
//如果该地点有几何图形,则将其显示在地图上。
if(place.geometry.viewport){
map.fitBounds(place.geometry.viewport);
}否则{
地图。设置中心(地点。几何。位置);
map.setZoom(17);//为什么是17?因为它看起来不错。
}
marker.setIcon(/**@type{google.maps.Icon}*/({
url:place.icon,
大小:新谷歌地图大小(71,71),
来源:新google.maps.Point(0,0),
主播:新google.maps.Point(17,34),
scaledSize:新的google.maps.Size(35,35)
}));
标记器.设置位置(位置.几何.位置);
marker.setVisible(true);
var地址=“”;
if(位置、地址和组件){
地址=[
(place.address_components[0]&&place.address_components[0]。简称| | |“”),
(place.address_components[1]&&place.address_components[1]。简称| | |“”),
(place.address_components[2]&&place.address_components[2]。简称| |“”)
].加入(“”);
}
infowindow.setContent(“”+place.name+”
“+地址);
信息窗口。打开(地图、标记);
});
//在单选按钮上设置侦听器以更改位置上的筛选器类型
//自动完成。
功能设置ClickListener(id、类型){
var radioButton=document.getElementById(id);
radioButton.addEventListener('单击',函数()){
自动完成。设置类型(类型);
});
}
setupClickListener('changetype-all',[]);
setupClickListener('changetype-address',['address']);
setupClickListener('changetype-Establish',['Establish']);
setupClickListener('changetype-geocode',['geocode']);
infoWindow=new google.maps.infoWindow();
服务=新的google.maps.places.PlacesService(地图);
//idle事件是一个取消公告的事件,因此我们可以查询和侦听,而无需
//在服务器上抛出太多请求。
map.addListener('idle',performSearch(places));
}
功能手柄位置错误(浏览器具有地理位置、信息窗口、pos){
信息窗口。设置位置(pos);
infoWindow.setContent(browserHasGeolocation?
“错误:地理位置服务失败。”:
'错误:您的浏览器不支持地理位置。');
}
功能性能搜索(位置){
变量位置=位置;
var请求={
边界:map.getBounds(),
关键词:地点
};
雷达搜索(请求、回调);
}
函数回调(结果、状态){
if(status!==google.maps.places.PlacesServiceStatus.OK){
控制台错误(状态);
回来
}
for(变量i=0,结果;结果=结果[i];i++){
添加标记(结果);
}
}
功能添加标记(位置){
var marker=new google.maps.marker({
地图:地图,
位置:place.geometry.location,
//图标:{
//网址:'https://developers.google.com/maps/documentation/javascript/images/circle.png',
//主播:新谷歌地图点(10,10),
//scaledSize:新的google.maps.Size(10,17)
//}
});
google.maps.event.addListener(标记'click',函数(){
service.getDetails(位置、功能(结果、状态){
if(status!==google.maps.places.PlacesServiceStatus.OK){
控制台错误(状态);
回来
}
infoWindow.setContent(result.name);
信息窗口。打开(地图、标记);
});
});
}
函数initAutocomplete(){
var map=new google.maps.map(document.getElementById('map'){
中心:{lat:-33.8688,lng:151.2195},
缩放:13,
mapTypeId:“路线图”
});
//创建搜索框并将其链接到UI元素。
var searchInput=document.getElementById('pac-input');
var searchBtn=document.getElementById('search-button');
var searchBox=new google.maps.places.searchBox(searchInput);
map.controls[google.maps.ControlPosition.TOP_LEFT].push(搜索输入);
地图
var marker;
var markers[];
marker = new google.maps.Marker({
...});
markers.push(marker).