如何在Xamarin表单Web视图页面中使用地理位置

Question

I am writing a app that needs to open the mobile forcast.io website I am using xamarin forms to do this. it loads the mobile website just fine but it does not pull up the current location! now if I go to the site in chrome browser for android it works just fine here is my code:

using Xamarin.Forms;

namespace App.Radar
{
    public partial class RadarHome : ContentPage
    {
        public RadarHome()
        {
            var browser = new WebView();
            {
                browser.Source = "https://forecast.io";

                Content = browser;
            };
        }
    }
}

and here is what my output log says:

[INFO:CONSOLE(0)] "Use of the Application Cache is deprecated on insecure origins. Support will be removed in the future. You should consider switching your application to a secure origin, such as HTTPS. See google url  for more details.", source:  (0)
08-09 09:12:25.332 I/chromium( 5979): [INFO:CONSOLE(0)] "Use of the Application Cache is deprecated on insecure origins. Support will be removed in the future. You should consider switching your application to a secure origin, such as HTTPS. See google url for more details.", source:  (0)
[INFO:CONSOLE(1)] "getCurrentPosition() and watchPosition() are deprecated on insecure origins. To use this feature, you should consider switching your application to a secure origin, such as HTTPS. See google url for more details.", source: http://forecast.io/js/mobile.min.js?rel=1454000774782 (1)
08-09 09:12:33.522 I/chromium( 5979): [INFO:CONSOLE(1)] "getCurrentPosition() and watchPosition() are deprecated on insecure origins. To use this feature, you should consider switching your application to a secure origin, such as HTTPS. See google url for more details.", source: http://forecast.io/js/mobile.min.js?rel=1454000774782 (1)
08-09 09:12:34.002 W/cr_BindingManager( 5979): Cannot call determinedVisibility() - never saw a connection for the pid: 5979
08-09 09:12:46.452 D/Mono    ( 5979): [0xd89ff930] worker finishing
Thread finished: <Thread Pool> #4
08-09 09:12:48.452 D/ViewRootImpl( 5979): ViewPostImeInputStage processPointer 0
08-09 09:12:48.532 D/ViewRootImpl( 5979): ViewPostImeInputStage processPointer 1

I'm testing this on a Samsung galaxy s7 running api 23.

Why isn't it getting my current location?

Answer 1

Hello I'm proving your app, and I don't have this problem with the GPS.

You are working in a with a real phone, when you debug in your

Deployed AndroidManifest.xml need to add android permissions to the application can use the gps.

https://developer.xamarin.com/recipes/android/general/projects/add_permissions_to_android_manifest/

rigth click in the android project -> android manifest and activate in the list the permissions necessary to work with the gps

INTERNET – for accessing network resources.

ACCESS_COARSE_LOCATION and ACCESS_FINE_LOCATION – for location services.

///////////////////////////////////////////////////////////////////

search the option of location and wath is enable

I probe the app in my table and the location that the application take is the location relative of the my public ip. And I thinking because this a external web page, the took the location of my provider of internet .

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I have an idea try this

http://www.c-sharpcorner.com/UploadFile/8c19e8/xamarin-android-working-with-gps-and-locations/

create a method that save the Latitude and Longitude of the phone.

    public double Latitude { get; set; }  
    public double Longitude { get; set; }  

and when you save this parameters y the Api of forecast

https://developer.forecast.io/docs/v2

There are two types of API calls. A forecast request returns the current forecast (for the next week):

https://api.forecast.io/forecast/APIKEY/LATITUDE,LONGITUDE A time-machine request returns the observed weather at a given time (for many places, up to 60 years in the past):

https://api.forecast.io/forecast/APIKEY/LATITUDE,LONGITUDE,TIME

**replaces the default link for this with the parameter and you have the current weather **

Regards. I hope you have a nice day. Happy coding.