I'm trying to set up a basic app to call the Google Directions API from a Xamarin.Forms app in Android. I'm new to Xamarin & C# generally, so have struggled searching for the right terms, but am familiar with the directions service from a javascript angle.
I'm using this basic app as a test bed: https://learn.microsoft.com/en-us/xamarin/android/platform/maps-and-location/maps/maps-api
I can add the button and associate a process with it, but how do i call the API & catch the results?
I'll worry about plotting etc later, i just want to write out the results to console for now.
Thanks for your help in advance!
1.First of all, you can used following URL to get Json data.(Please notice:You need to enable the Directions API in Google console,otherwise, you will get error message This API project is not authorized to use this API.)
https://maps.googleapis.com/maps/api/directions/json?origin=lat1,lon1&destination=lat2,lon2&key=yourApiKey
In this URL, you need to provide the latitude and longitude of Origin position and destination postion.API key(You can get the API key from a Google console)
2.You can play and just change variables in this link and open it in browser, to see the returning object like this screenshot.
3.When you receive the return object, you will need to parse it.(Prase json data:http://bsubramanyamraju.blogspot.com/2017/04/xamarinforms-consuming-rest-webserivce_17.html)
4.The distance will be at googleApiRouteObject.routes[0].legs[0].distance; There you will find a int representation in meeters, and string representation like 2km.
5.The waypoints will be coded in Polylines, you will need to parse them. You can find how to do that with code examples here: https://developers.google.com/maps/documentation/utilities/polylineutility
If you want to get the sample code, you can refer to this link.
https://agileapp.co/xamarin-forms-maps-polyline-route-highlighted-google-api
Related
I am working on a Xamarin iOS project trying to display a list of the most likely locations based on the user's GPS coordinates using either the Place Picker or GMSPlacePickerViewController from the google maps API, as shown in this Swift tutorial.
However I can't seem to find any decent tutorials using C#. I don't want to display the map to users I simply want to retrieve the list of most likely locations based on the coordinates.
Any guidance would be greatly appreciated as I'm at a bit of a loss about how to use the google maps API to achieve this.
Okay answering this for anyone coming after me and trying to do something similar.After lots of searching I have realised it is possible to use the nearbySearch method from the Google Places API Web Service to retrieve a list of addresses near particular coordinates within a specific radius (in metres). You can optionally specify the type of addresses you are searching for, e.g. Restaurants.
Not sure how I missed this but there is a Place Search demo at the bottom of this page;
https://developers.google.com/places/web-service/
I have a discord bot written in c# that reports events based on their latitude/longitude. I want to take the latitude/longitude data and place markers on an html based google map (locally hosted or online) using c#
Can someone point me in the right direction?
You'll want to use the Google Static Maps API.
I am trying to code pathfinding algorithm by using Google Maps Api.
The project is an ASP.Net Web Application and I must get the shortest way between A and B but it is my job not Google Maps'.
I only need to ask Google Maps "Hey Google Is there a direct road between X and Y?" then need boolean type simple answer. (There is always a road between X and Y indirectly so Google Maps can say me the distance of road/path it is acceptable for me too).
My other question is "Is there any library for .Net to not need to use javascript or at least using javascript strings on .cs files not in aspx files?"
Thanks in advance and forgive me about my bad English.
For calculating route between two points you need Google Directions API. That will return you a result json/xml with distance and other details.
The Google Directions API is a service that calculates directions
between locations using an HTTP request. You can search for directions
for several modes of transportation, include transit, driving, walking
or cycling. Directions may specify origins, destinations and waypoints
either as text strings (e.g. "Chicago, IL" or "Darwin, NT, Australia")
or as latitude/longitude coordinates. The Directions API can return
multi-part directions using a series of waypoints
A request would be something like
http://maps.googleapis.com/maps/api/directions/json?origin=Boston,MA&destination=Concord,MA&waypoints=Charlestown,MA|Lexington,MA&sensor=false
You may wanna see this article on Code project: Google Maps API V3 for ASP.NET
For your 2nd part of the question, I am not sure what are you asking. You can use the above API in .Net irrespective of JavaScript
I'm working on a program in Visual C#.NET and I need some help.
I need it to be able to take in some text through a text box, then somehow send that text to google, and bring back the resulting URLs (not the full results, just the URLs) and then display those in my program. How would I do that?
Use the WebClient class to send the query to Google and read the response.
Alternatively, use a .NET library that interacts with the Google search API, like this one (this was just the first Google result).
There are also REST libraries for .NET, if you go with the newer custom search.
Unfortunately the Google Web Search API is deprecated and no longer available. However the next best thing IMO is Google Custom Search Engine.
I'm working on an xbl stat grabber. I have a problem I dont understand how to get the "gamer card"
Heres an example : http://www.youtube.com/watch?v=6HA-uz_v6A0&feature=related
I already have the avatar but I don't get how you can grab the stats and recent games...
You need access to the Xbox Live API, I think you have to apply to Microsoft to get on their 'Community Developer' programme, although it's a bit hazy on the site as to whether they are accepting applications or not.
One kind fellow (who I think is a Microsoft employee) saw that this was a terrible oversight from his employers decided to offer as web service that plugged into the Xbox Live network so you can pull statistics down, you can find info about it and a website here: -
http://duncanmackenzie.net/Blog/put-up-a-rest-api-for-xbox-gamertag-data
It's very comprehensive and should give you all the data you need (Gamerscore, current status, last game played etc)
EDIT: Extra stuff that might help
I'm not too familiar with C# but the process of using the service would be to do the following in your application: -
Construct your URL with a/your gamertag as the argument
Use some URL/Networking API (C#/.NET must have something like this somewhere) to load the URL and retrieve the contents. This should return you a big string containing a bunch of XML
Parse the XML into your application using some sort of XML parsing API (again, I'd imagine C#/.NET has these things built into the framework)
From the looks of the program, the gamercard info looks as if it is just an embedding based upon the gamer tag. You can find info on embedding your Xbox Live gamercard here.
The video author said the Halo stat information is coming courtesy of a site called HaloCharts.com. I don't know if he is embedding the information, perhaps reading an RSS feed, or if he is extracting data from the HTML.