XamarinDevDays/Demos/TwitterSearch/TwitterSearch.iOS/AppDelegate.cs

using System;
using System.Collections.Generic;
using System.Linq;

using Foundation;
using UIKit;

namespace TwitterSearch.iOS
{
  // The UIApplicationDelegate for the application. This class is responsible for launching the 
  // User Interface of the application, as well as listening (and optionally responding) to 
  // application events from iOS.
  [Register("AppDelegate")]
  public partial class AppDelegate : UIApplicationDelegate
  {
    // class-level declarations

    public override UIWindow Window
    {
      get;
      set;
    }

    public override bool FinishedLaunching(UIApplication application, NSDictionary launchOptions)
    {
      UINavigationBar.Appearance.BarTintColor = UIColor.FromRGB(17, 113, 197); //bar background
      UINavigationBar.Appearance.TintColor = UIColor.White; //Tint color of button items
      UINavigationBar.Appearance.SetTitleTextAttributes(new UITextAttributes()
      {
        Font = UIFont.FromName("HelveticaNeue-Light", 20f),
        TextColor = UIColor.White
      });
      return true;
    }

    //
    // This method is invoked when the application is about to move from active to inactive state.
    //
    // OpenGL applications should use this method to pause.
    //
    public override void OnResignActivation(UIApplication application)
    {
    }

    // This method should be used to release shared resources and it should store the application state.
    // If your application supports background exection this method is called instead of WillTerminate
    // when the user quits.
    public override void DidEnterBackground(UIApplication application)
    {
    }

    // This method is called as part of the transiton from background to active state.
    public override void WillEnterForeground(UIApplication application)
    {
    }

    // This method is called when the application is about to terminate. Save data, if needed. 
    public override void WillTerminate(UIApplication application)
    {
    }
  }
}