Favourites Infrastructure Added

CryptoNews/CryptoNews.Android/MainApplication.cs

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+using System;
+
+using Android.App;
+using Android.OS;
+using Android.Runtime;
+using Plugin.CurrentActivity;
+
+namespace CryptoNews.Droid
+{
+	//You can specify additional application information in this attribute
+    [Application]
+    public class MainApplication : Application, Application.IActivityLifecycleCallbacks
+    {
+        public MainApplication(IntPtr handle, JniHandleOwnership transer)
+          :base(handle, transer)
+        {
+        }
+
+        public override void OnCreate()
+        {
+            base.OnCreate();
+            RegisterActivityLifecycleCallbacks(this);
+            //A great place to initialize Xamarin.Insights and Dependency Services!
+        }
+
+        public override void OnTerminate()
+        {
+            base.OnTerminate();
+            UnregisterActivityLifecycleCallbacks(this);
+        }
+
+        public void OnActivityCreated(Activity activity, Bundle savedInstanceState)
+        {
+            CrossCurrentActivity.Current.Activity = activity;
+        }
+
+        public void OnActivityDestroyed(Activity activity)
+        {
+        }
+
+        public void OnActivityPaused(Activity activity)
+        {
+        }
+
+        public void OnActivityResumed(Activity activity)
+        {
+            CrossCurrentActivity.Current.Activity = activity;
+        }
+
+        public void OnActivitySaveInstanceState(Activity activity, Bundle outState)
+        {
+        }
+
+        public void OnActivityStarted(Activity activity)
+        {
+            CrossCurrentActivity.Current.Activity = activity;
+        }
+
+        public void OnActivityStopped(Activity activity)
+        {
+        }
+    }
+}