static void Main(string[] args)
{
var MediaStorageInstance = new MediaStorage();
var AudioPlayerInstance = new AudioPlayer();
var AudioPlayerDelegateInstance = new MediaStorage.PlayMedia(AudioPlayerInstance.PlayAudioFile);
MediaStorageInstance.ReportResult(AudioPlayerDelegateInstance);
}
static void Main(string[] args)
{
var mediaStorage = new MediaStorage();
var audioPlayer = new AudioPlayer();
var videoPlayer = new VideoPlayer();
var audioDelegate = new MediaStorage.PlayMedia(audioPlayer.PlayAudio);
var videoDelegate = new MediaStorage.PlayMedia(videoPlayer.PlayVideo);
mediaStorage.ReportResult(new AudioPlayer().PlayAudio);
mediaStorage.ReportResult(audioDelegate);
mediaStorage.ReportResult(videoPlayer.PlayVideo);
}
public void Run()
{
MediaStorage myMediaStorage = new MediaStorage();
AudioPlayer myAudioPlayer = new AudioPlayer();
VideoPlayer myVideoPlayer = new VideoPlayer();
MediaStorage.PlayMedia audioPlayerDelegate = new MediaStorage.PlayMedia(myAudioPlayer.PlayAudioFile);
MediaStorage.PlayMedia videoPlayerDelegate = new MediaStorage.PlayMedia(myVideoPlayer.PlayVideoFile);
myMediaStorage.ReportResult(audioPlayerDelegate);
myMediaStorage.ReportResult(videoPlayerDelegate);
}
public void Run()
{
MediaStorage myMediaStorage = new MediaStorage();
// instantiate the two media players
AudioPlayer myAudioPlayer = new AudioPlayer();
// instantiate the delegates
MediaStorage.PlayMedia audioPlayerDelegate = new
MediaStorage.PlayMedia(myAudioPlayer.PlayAudioFile);
// call the delegates
myMediaStorage.ReportResult(audioPlayerDelegate);
}
public void Run()
{
MediaStorage myMediaStorage = new MediaStorage();
// instantiate the two media players
AudioPlayer myAudioPlayer = new AudioPlayer();
VideoPlayer myVideoPlayer = new VideoPlayer();
// instantiate the delegates
MediaStorage.PlayMedia audioPlayerDelegate = new MediaStorage.PlayMedia(myAudioPlayer.PlayAudioFile);
MediaStorage.PlayMedia videoPlayerDelegate = new MediaStorage.PlayMedia(myVideoPlayer.PlayVideoFile);
// call the delegates
myMediaStorage.ReportResult(audioPlayerDelegate);
myMediaStorage.ReportResult(videoPlayerDelegate);
}
//To test the delegate
public static void run()
{
string check = "y";
while (!(check == "exit" || check == "n"))
{
MediaStorage.PlayMedia audioDelegate = new MediaStorage.PlayMedia(AudioFile.playAudio);
MediaStorage.PlayMedia videoDelegate = new MediaStorage.PlayMedia(VideoFile.playVideo);
MediaStorage store = new MediaStorage();
store.reportResult(audioDelegate); //non-static field needs object reference
Console.WriteLine();
store.reportResult(videoDelegate);
Console.Write("\r\nEnter any character to continue (Enter 'exit' or 'n' to quit): ");
check = Console.ReadLine();
Console.WriteLine();
}
}
// in Main we use the higher-order function
public static void Main()
{
// instantiate the storage class
var ms = new MediaStorage();
// instantiate the player classes
var aPlayer = new AudioPlayer();
var vPlayer = new VideoPlayer();
// instantiate the delegate
var aDelegate = new MediaStorage.PlayMedia(aPlayer.PlayAudioFile);
var vDelegate = new MediaStorage.PlayMedia(vPlayer.PlayVideoFile);
// provide instances to the method using the delegate
ms.ReportResult(aDelegate);
ms.ReportResult(vDelegate);
}
static void Main(string[] args)
{
// Instatiate the MediaStorage class
// and each of the media players
MediaStorage myMediaStorage = new MediaStorage();
AudioPlayer myAudioPlayer = new AudioPlayer();
VideoPlayer myVideoPlayer = new VideoPlayer();
// Instantiate the delegates
MediaStorage.PlayMedia audioPlayerDelegate = new MediaStorage.PlayMedia(myAudioPlayer.PlayAudioFile);
MediaStorage.PlayMedia videoPlayerDelegate = new MediaStorage.PlayMedia(myVideoPlayer.PlayVideoFile);
// If you uncomment the below line of code you will get a compiler error.
// We are trying to encapsulate a method that does not match the signature of the delegate.
//MediaStorage.PlayMedia alternativeDelegate = new MediaStorage.PlayMedia(myAudioPlayer.AlternativePlayer);
// Delegates are used with the ReportResult() method to see if the media
// files are valid.
myMediaStorage.ReportResult(audioPlayerDelegate);
myMediaStorage.ReportResult(videoPlayerDelegate);
Console.ReadKey();
}
