places.cs

using Android.App;
using Android.Widget;
using Android.OS;
using Android.Support.V7.App;
using Android.Gms.Common.Apis;
using Android.Gms.Extensions;
using Android.Gms.Awareness;
using Android.Gms.Location;
using Android.Gms.Maps;
using Android.Gms.Location.Places.UI;
using Android.Locations;

[assembly: MetaData ("com.google.android.geo.API_KEY", Value="AIzaSyCe9FlFLkAo34iMnxnR23X3g_irRh7ir5E")]
namespace GpsAsyncTest
{
	[Activity(Label = "GpsAsyncTest", MainLauncher = true, Icon = "@mipmap/icon", Theme="@style/Theme.AppCompat")]
	public class MainActivity : AppCompatActivity
	{
		GoogleApiClient googleApi;
		
		protected async override void OnCreate(Bundle savedInstanceState)
		{
			base.OnCreate(savedInstanceState);

			// Set our view from the "main" layout resource
			SetContentView(Resource.Layout.Main);

			//wider search radius for destination
			double offset = 0.1;

			var lat = 42.072596;
			var lng = -82.624993;

			var northEast = new Android.Gms.Maps.Model.LatLng(lat + offset, lng + offset);
			var southWest = new Android.Gms.Maps.Model.LatLng(lat - offset, lng - offset);
			var bounds = new Android.Gms.Maps.Model.LatLngBounds(southWest, northEast);

			var builder = new PlacePicker.IntentBuilder();
			builder = builder.SetLatLngBounds(bounds);


			var intent = builder.Build(this);
			StartActivityForResult(intent, 10112);
		}
	}
}