wip

src/App/Behaviors/ConnectivityBehavior.cs

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+using System;
+using Plugin.Connectivity.Abstractions;
+using Xamarin.Forms;
+using XLabs.Ioc;
+
+namespace Bit.App.Behaviors
+{
+    public class ConnectivityBehavior : Behavior<Element>
+    {
+        private readonly IConnectivity _connectivity;
+
+        public ConnectivityBehavior()
+        {
+            _connectivity = Resolver.Resolve<IConnectivity>();
+        }
+
+        private static readonly BindablePropertyKey IsValidPropertyKey = BindableProperty.CreateReadOnly("Connected", typeof(bool), typeof(ConnectivityBehavior), false);
+        public static readonly BindableProperty IsValidProperty = IsValidPropertyKey.BindableProperty;
+
+        public bool Connected
+        {
+            get { return (bool)GetValue(IsValidProperty); }
+            private set { SetValue(IsValidPropertyKey, value); }
+        }
+
+        protected override void OnAttachedTo(Element el)
+        {
+            _connectivity.ConnectivityChanged += ConnectivityChanged;
+            base.OnAttachedTo(el);
+        }
+
+        private void ConnectivityChanged(object sender, ConnectivityChangedEventArgs e)
+        {
+            Connected = e.IsConnected;
+        }
+
+        protected override void OnDetachingFrom(Element el)
+        {
+            _connectivity.ConnectivityChanged -= ConnectivityChanged;
+            base.OnDetachingFrom(el);
+        }
+    }
+}