问MonoTouch中的applicationWillBecomeActive

EN

/// <summary>
/// Gets called by iOS if the app is started from scratch and is not resumed from background.
/// We have 17 seconds to leave this methos before iOS will kill the app.
/// </summary>
public override bool FinishedLaunching ( UIApplication application, NSDictionary launchOptions )

/// <summary>
/// Called if the app comes back from background or gets started. Triggered after FinishedLaunching().
/// </summary>
public override void OnActivated ( UIApplication application )

/// <summary>
/// Called if the application gets pushed to the background because the user hits the home button.
/// </summary>
public override void DidEnterBackground ( UIApplication application )

/// <summary>
/// Gets called if the app is resumed from background but NOT if the app starts first time.
/// </summary>
public override void WillEnterForeground ( UIApplication application )