Is there any alternative to navigator.permissions.query Permissions API?

问题

Is there any alternative to navigator.permissions.query Permissions API query to check geolocation permission. cause its still in Working Draft and has less Browser compatibility.

W3C Permissions Ref : https://www.w3.org/TR/permissions/

Issue is app resume once user perform action on native permission popup then wanted to check the action being taken by user.

Hybrid Cordova App callback for location permission alert

Platform : Mobile Android

NOTE : Don't want to use cordova diagnostic plugin

Example:

navigator.permissions.query({name:'geolocation'}).then(function(result) {

  console.log('result : ', result);

});

回答1:

I don't think so.

At this moment the navigator.permissions object is undefined - probably it's removed in WebView by purpose to not mix web permissions with android permissions.

Option 1:

You may try Cordova diagnostic plugin, specifically the getLocationAuthorizationStatus method which should return permission state in very similar way to Permissions API. Please note I haven't tried the plugin.

Option 2:

Trigger location permissions dialog by requesting location. When you'll receive PositionError with PERMISSION_DENIED constant code, it'll mean that user denied location permission (just now or at app settings).

navigator.getCurrentPosition(
  function(position) { /** won't be executed for such short timeout */ },
  function(positionError) {
    switch (positionError.code) {
    // PERMISSION_DENIED
    case 1:
      console.log('Permission denied')
      break
    // POSITION_UNAVAILABLE
    case 2:
      console.log('Permission allowed, location disabled')
      break
    // TIMEOUT
    case 3:
      console.log('Permission allowed, timeout reached')
      break
    }
  },
  {timeout: 0}
)

来源：https://stackoverflow.com/questions/52784495/is-there-any-alternative-to-navigator-permissions-query-permissions-api