用户在 javascript 中阻止访问后请求位置坐标

问题描述

如果用户过去阻止了我的请求，我如何在 javascript 中提示用户提供他们的地理位置?(使用 navigator.geolocation.getCurrentPosition).

How can I prompt a user for their geo-location in javascript if they've blocked my request in the past? (using navigator.geolocation.getCurrentPosition).

例如，我的网络应用需要定位服务，而用户不小心点击了阻止"，或者他们改变了主意.我该怎么做才能再次提示他们?

For example, my web app requires location services, and the user accidentally clicks "block", or they change their mind. What can I do to prompt them again?

推荐答案

正如@matthew-shwery 所说，您不能更改权限.
你能做的最好的就是检查权限并通知用户权限被拒绝

As mentioned by @matthew-shwery, you can not change the permission.
the best you could do is check for the permission and notify the user is the permission is denied

navigator.permissions.query({
     name: 'geolocation'
 }).then(function(result) {
     if (result.state == 'granted') {
         report(result.state);
         geoBtn.style.display = 'none';
     } else if (result.state == 'prompt') {
         report(result.state);
         geoBtn.style.display = 'none';

         navigator.geolocation.getCurrentPosition(revealPosition, positionDenied, geoSettings);
     } else if (result.state == 'denied') {
         report(result.state);
         geoBtn.style.display = 'inline';
     }
     result.onchange = function() {
         report(result.state);
     }
 });

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