protected override void OnCreate(Bundle savedInstanceState) { base.OnCreate(savedInstanceState); TwitterWrapper tw = new TwitterWrapper(this, "myConsumerKey", "myConsumerSecret", new Uri("http://127.0.0.1")); // Set our view from the "main" layout resource SetContentView(Resource.Layout.Main); this.imageview = FindViewById <ImageView> (Resource.Id.imageView1); this.downloadButton = FindViewById <Button> (Resource.Id.button1); this.postButton = FindViewById <Button> (Resource.Id.button2); this.getButton = FindViewById <Button> (Resource.Id.button3); this.theView = FindViewById <TextView> (Resource.Id.textView1); downloadButton.Click += async delegate { Downloader myDownloader = new Downloader(); //Task<string> downloadTask = myDownloader.DownloadImage("https://abs.twimg.com/sticky/default_profile_images/default_profile_0_400x400.png"); Task <string> downloadTask = myDownloader.DownloadImage(imageURL); string filePath = await downloadTask; imageFile = filePath; Bitmap bitmap = BitmapFactory.DecodeFile(filePath); imageview.SetImageBitmap(bitmap); }; postButton.Click += async delegate { copyAsset(); Uploader myUploader = new Uploader(); LinkExtractor le = new LinkExtractor(); Task <string> uploadTask = myUploader.UploadImage(imageFile); string outputString = await uploadTask; string imageLink = le.linkInString(outputString); // 2. Create an item to share var item = new Item { Text = "Yay test." }; item.Links.Add(new Uri(imageLink)); // 3. Present the UI on Android var shareIntent = tw.GetShareUI(this, item, result => { // result lets you know if the user shared the item or canceled }); StartActivityForResult(shareIntent, 42); }; getButton.Click += async delegate { //Task<string> posts = tw.getPosts("Eustreptospondylus", 1); // Non-existing user Task <string> posts = tw.getPosts("mrjeppa", 1); string rawJSON = await posts; LinkExtractor ln = new LinkExtractor(); string imgLink = ln.extractTwitterLink(rawJSON); theView.Text = imgLink; imageURL = imgLink; }; }