Added rate app function and message passing for android

src/Android/MainActivity.cs

@@ -13,6 +13,7 @@ using Plugin.Settings.Abstractions;
 using Plugin.Connectivity.Abstractions;
 using Acr.UserDialogs;
 using PushNotification.Plugin.Abstractions;
+using Android.Content;
 
 namespace Bit.Android
 {
@@ -44,6 +45,12 @@ namespace Bit.Android
                 Resolver.Resolve<IPushNotification>(),
                 Resolver.Resolve<ILockService>(),
                 Resolver.Resolve<IGoogleAnalyticsService>()));
+
+            Xamarin.Forms.MessagingCenter.Subscribe<Xamarin.Forms.Application>(
+                Xamarin.Forms.Application.Current, "RateApp", (sender) =>
+            {
+                RateApp();
+            });
         }
 
         protected override void OnPause()
@@ -81,5 +88,37 @@ namespace Bit.Android
             Console.WriteLine("A OnResume");
             base.OnResume();
         }
+
+        public void RateApp()
+        {
+            try
+            {
+                var rateIntent = RateIntentForUrl("market://details");
+                StartActivity(rateIntent);
+            }
+            catch(ActivityNotFoundException)
+            {
+                var rateIntent = RateIntentForUrl("https://play.google.com/store/apps/details");
+                StartActivity(rateIntent);
+            }
+        }
+
+        private Intent RateIntentForUrl(string url)
+        {
+            var intent = new Intent(Intent.ActionView, global::Android.Net.Uri.Parse($"{url}?id={PackageName}"));
+            var flags = ActivityFlags.NoHistory | ActivityFlags.MultipleTask;
+            if((int)Build.VERSION.SdkInt >= 21)
+            {
+                flags |= ActivityFlags.NewDocument;
+            }
+            else
+            {
+                // noinspection deprecation
+                flags |= ActivityFlags.ClearWhenTaskReset;
+            }
+
+            intent.AddFlags(flags);
+            return intent;
+        }
     }
 }

src/Android/Properties/AndroidManifest.xml

@@ -6,7 +6,7 @@
 	<uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW" />
 	<uses-permission android:name="android.permission.WAKE_LOCK" />
 	<uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />
-	<uses-permission android:name="com.8bit.bitwarden.permission.C2D_MESSAGE" />
+	<uses-permission android:name="com.x8bit.bitwarden.permission.C2D_MESSAGE" />
 	<uses-permission android:name="android.permission.GET_ACCOUNTS" />
 	<application android:label="bitwarden" android:theme="@style/BitwardenTheme"></application>
 </manifest>

src/App/Pages/Settings/SettingsPage.cs

@@ -130,7 +130,8 @@ namespace Bit.App.Pages
 
             if(Device.OS == TargetPlatform.iOS)
             {
-                rateCell.Detail.Text = "App Store ratings are reset with every new version of bitwarden. Please consider helping us out with a good review!";
+                rateCell.Detail.Text = "App Store ratings are reset with every new version of bitwarden."
+                    + " Please consider helping us out with a good review!";
             }
             else
             {
@@ -240,11 +241,15 @@ namespace Bit.App.Pages
 
         private void RateCell_Tapped(object sender, EventArgs e)
         {
+            _googleAnalyticsService.TrackAppEvent("OpenedSetting", "RateApp");
             if(Device.OS == TargetPlatform.iOS)
             {
-                _googleAnalyticsService.TrackAppEvent("OpenedSetting", "RateApp");
+                Device.OpenUri(new Uri($"itms-apps://itunes.apple.com/WebObjects/MZStore.woa/wa/viewContentsUserReviews" +
-                var appStoreId = "1137397744";
+                    "?id=1137397744&onlyLatestVersion=true&pageNumber=0&sortOrdering=1&type=Purple+Software"));
-                Device.OpenUri(new Uri($"itms-apps://itunes.apple.com/WebObjects/MZStore.woa/wa/viewContentsUserReviews?id={appStoreId}&onlyLatestVersion=true&pageNumber=0&sortOrdering=1&type=Purple+Software"));
+            }
+            else if(Device.OS == TargetPlatform.Android)
+            {
+                MessagingCenter.Send(Application.Current, "RateApp");
             }
         }
 
@@ -262,7 +267,8 @@ namespace Bit.App.Pages
 
         private async void LogOutCell_Tapped(object sender, EventArgs e)
         {
-            if(!await _userDialogs.ConfirmAsync("Are you sure you want to log out?", null, AppResources.Yes, AppResources.Cancel))
+            if(!await _userDialogs.ConfirmAsync(
+                "Are you sure you want to log out?", null, AppResources.Yes, AppResources.Cancel))
             {
                 return;
             }