Add Android sharing

Wintellect · Sep 4, 2015 · b1aec9c · b1aec9c
1 parent 9f7517d
commit b1aec9c
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Showing 3 changed files with 57 additions and 14 deletions.
diff --git a/ShareExample/Droid/MainActivity.cs b/ShareExample/Droid/MainActivity.cs
@@ -1,26 +1,49 @@
-using System;
-
-using Android.App;
-using Android.Content;
+using Android.App;
 using Android.Content.PM;
-using Android.Runtime;
-using Android.Views;
-using Android.Widget;
 using Android.OS;
+using Xamarin.Forms;
+using Android.Content;
+using Android.Graphics;
+using Xamarin.Forms.Platform.Android;
 
 namespace ShareExample.Droid
 {
     [Activity(Label = "ShareExample.Droid", Icon = "@drawable/icon", MainLauncher = true, ConfigurationChanges = ConfigChanges.ScreenSize | ConfigChanges.Orientation)]
     public class MainActivity : global::Xamarin.Forms.Platform.Android.FormsApplicationActivity
     {
+        const int ShareImageId = 1000;
+
         protected override void OnCreate(Bundle bundle)
         {
             base.OnCreate(bundle);
 
-            global::Xamarin.Forms.Forms.Init(this, bundle);
+            Forms.Init(this, bundle);
 
             LoadApplication(new App());
+
+            MessagingCenter.Subscribe<ImageSource> (this, "Share", Share, null);
+        }
+
+        async void Share (ImageSource imageSource)
+        {
+            var intent = new Intent (Intent.ActionSend);
+            intent.SetType ("image/png");
+
+            var handler = new ImageLoaderSourceHandler();
+            var bitmap = await handler.LoadImageAsync(imageSource, this);
+
+            var path = Environment.GetExternalStoragePublicDirectory (Environment.DirectoryDownloads
+                + Java.IO.File.Separator + "logo.png");
+
+            using (var os = new System.IO.FileStream (path.AbsolutePath, System.IO.FileMode.Create)) {
+                bitmap.Compress (Bitmap.CompressFormat.Png, 100, os);
+            }
+
+            intent.PutExtra (Intent.ExtraStream, Android.Net.Uri.FromFile (path));
+
+            var intentChooser = Intent.CreateChooser (intent, "Share via");
+
+            StartActivityForResult (intentChooser, ShareImageId);
         }
     }
 }
-
diff --git a/ShareExample/Droid/Resources/Resource.designer.cs b/ShareExample/Droid/Resources/Resource.designer.cs
diff --git a/ShareExample/iOS/AppDelegate.cs b/ShareExample/iOS/AppDelegate.cs
@@ -11,7 +11,7 @@ public partial class AppDelegate : global::Xamarin.Forms.Platform.iOS.FormsAppli
     {
         public override bool FinishedLaunching(UIApplication app, NSDictionary options)
         {
-            global::Xamarin.Forms.Forms.Init();
+            Forms.Init();
 
             // Code for starting up the Xamarin Test Cloud Agent
             #if ENABLE_TEST_CLOUD
@@ -28,18 +28,17 @@ public override bool FinishedLaunching(UIApplication app, NSDictionary options)
         async void Share (ImageSource imageSource)
         {
             var handler = new ImageLoaderSourceHandler();
-            var bytes = await handler.LoadImageAsync(imageSource);
+            var uiImage = await handler.LoadImageAsync(imageSource);
 
-            var item = NSObject.FromObject (bytes);
+            var item = NSObject.FromObject (uiImage);
             var activityItems = new[] { item }; 
             var activityController = new UIActivityViewController (activityItems, null);
 
             var topController = UIApplication.SharedApplication.KeyWindow.RootViewController;
             while (topController.PresentedViewController != null) {
                 topController = topController.PresentedViewController;
             }
-            topController.PresentViewController (activityController, true, () => {
-            });
+            topController.PresentViewController (activityController, true, () => {});
         }
     }
 }