ios-samples/MonoCatalogSample/toolbar.cs

//
// Port of the toolbar sample to C#
//
using MonoTouch.Foundation;
using MonoTouch.UIKit;
using System;
using System.Drawing;

public partial class ToolbarViewController : UIViewController {

	UIBarButtonSystemItem currentSystemItem;
	UIToolbar toolbar;
	static string [] pickerViewArray = {
		"Done",
		"Cancel",
		"Edit",
		"Save",
		"Add",
		"FlexibleSpace",
		"FixedSpace",
		"Compose",
		"Reply",
		"Action",
		"Organize",
		"Bookmarks",
		"Search",
		"Refresh",
		"Stop",
		"Camera",
		"Trash",
		"Play",
		"Pause",
		"Rewind",
		"FastForward",
		"Undo",
		"Redo"
	};

	public ToolbarViewController () : base ("ToolbarViewController", null) {}

	//
	// This is the general callback that we give to buttons to show how to hook events up
	// this could have been an anonymous delegate if desired.
	//
	void Action (object sender, EventArgs args)
	{
		Console.WriteLine ("I am the action");
	}

	void CreateToolbarItems ()
	{
		// The order is mapped one to one to the UIBarButtonItemStyle
		var style = (UIBarButtonItemStyle) buttonItemStyleSegControl.SelectedSegment;

		var systemItem = new UIBarButtonItem (currentSystemItem, Action){
			Style = style
		};

		var flexItem = new UIBarButtonItem (UIBarButtonSystemItem.FlexibleSpace);

		var infoItem = new UIBarButtonItem (UIImage.FromFile ("segment_tools.png"), style, Action);

		var customItem = new UIBarButtonItem ("Item", style, Action);

		toolbar.Items = new UIBarButtonItem [] { systemItem, flexItem, customItem, infoItem };
	}

	public override void ViewDidLoad ()
	{
		base.ViewDidLoad ();

		Title = "Toolbar";

		View.BackgroundColor = UIColor.GroupTableViewBackgroundColor;
		toolbar = new UIToolbar() {
			BarStyle = UIBarStyle.Default
		};
		toolbar.SizeToFit ();
		float toolbarHeight = toolbar.Frame.Height;
		var mainViewBounds = View.Bounds;
		toolbar.Frame = new RectangleF (mainViewBounds.X, (float)(mainViewBounds.Y + mainViewBounds.Height - toolbarHeight * 2 + 2),
						mainViewBounds.Width, toolbarHeight);
		View.AddSubview (toolbar);
		currentSystemItem = UIBarButtonSystemItem.Done;
		CreateToolbarItems ();

		systemButtonPicker.Model = new ItemPickerModel (this);
	}

	partial void toggleStyle (UISegmentedControl sender)
	{
		var style = UIBarButtonItemStyle.Plain;

		switch (sender.SelectedSegment){
		case 0:
			style = UIBarButtonItemStyle.Plain;
			break;
		case 1:
			style = UIBarButtonItemStyle.Bordered;
			break;
		case 2:
			style = UIBarButtonItemStyle.Done;
			break;
		}
		foreach (var item in toolbar.Items)
			item.Style = style;
	}

	partial void toggleBarStyle (UISegmentedControl sender)
	{
		switch (sender.SelectedSegment){
		case 0:
			toolbar.BarStyle = UIBarStyle.Default;
			break;

		case 1:
			toolbar.BarStyle = UIBarStyle.Black;
			break;

		case 2:
			toolbar.BarStyle = UIBarStyle.Black;
			toolbar.Translucent = true;
			break;
		}

	}

	partial void toggleTintColor (UISwitch sender)
	{
		if (sender.On){
			toolbar.TintColor = UIColor.Red;
			barStyleSegControl.Enabled = false;
			barStyleSegControl.Alpha = 0.5f;
		} else {
			toolbar.TintColor = null;
			barStyleSegControl.Enabled = true;
			barStyleSegControl.Alpha  = 1.0f;
		}
	}

	public class ItemPickerModel : UIPickerViewModel {
		ToolbarViewController tvc;

		public ItemPickerModel (ToolbarViewController tvc)
		{
			this.tvc = tvc;
		}

		public override void Selected (UIPickerView picker, int row, int component)
		{
			tvc.currentSystemItem = (UIBarButtonSystemItem) picker.SelectedRowInComponent (0);
			tvc.CreateToolbarItems ();
		}

		public override string GetTitle (UIPickerView picker, int row, int component)
		{
			return pickerViewArray [row];
		}

		public override float GetComponentWidth (UIPickerView picker, int component)
		{
			return 240f;
		}

		public override float GetRowHeight (UIPickerView picker, int component)
		{
			return 40f;
		}

		public override int GetRowsInComponent (UIPickerView pickerView, int component)
		{
			return pickerViewArray.Length;
		}

		public override int GetComponentCount (UIPickerView v)
		{
			return 1;
		}
	}
}