For the final piece of our application, we need to implement some custom functionality that Apple doesn't provide with their APIs. We need to add a text field with a button that appears to be attached to the bottom of the table view. Most of this will require writing some simple C# code and wiring up events.
Let's begin by adding some new member variables to our MessagesController class, as follows:
UIToolbar toolbar; UITextField message; UIBarButtonItem send;
We will place the text field and bar buttons inside the toolbar, as in the following code in ViewDidLoad:
public override void ViewDidLoad()
{
base.ViewDidLoad();
//Text Field
message = new UITextField(
new CGRect(0, 0, TableView.Frame.Width - 88, 32))
{
BorderStyle = UITextBorderStyle.RoundedRect,
ReturnKeyType = UIReturnKeyType.Send,
ShouldReturn = _ =>
{
Send();
return false...