Hashtag Detection Xamarin.Forms

gistfile1.txt

void Handle_MessageChanged(object sender, TextChangedEventArgs e)
		{
			Editor editor = sender as Editor;
			string val = editor.Text; //Get Current Text

			if (val.Length > 140)//If it is more than your character restriction
			{
				val = val.Remove(val.Length - 1);// Remove Last character 
				editor.Text = val; //Set the Old value
			}

			DetectHashTags(val);
		}


		void DetectHashTags(string input)
		{
			string[] words = input.Split(' ');

			List<string> hashtags = new List<string>();
			TagLayout.Children.Clear(); //TagLayout is a horizontal oriented stacklayout that we will add our detected hashtag labels too

			for (int i = 0; i < words.Length; i++)
			{
				string word = words[i];
				if (word.StartsWith("#", StringComparison.Ordinal) && i != words.Length-1)
				{
					if (!hashtags.Contains(word))
					{
						Debug.WriteLine(word);
						hashtags.Add(word);

						Label HashTagLabel = new Label()
						{
							FontSize = 12,
							TextColor = Color.FromHex("#2196F3"),
							BackgroundColor = Color.FromHex("#e4e4e4"),
							VerticalOptions = LayoutOptions.StartAndExpand,
							Text = word
						};

						TagLayout.Children.Add(HashTagLabel);	
					}
				}
			}
		}