C# AlertDialog.Builder.Show方法代码示例

		protected override void OnCreate (Bundle bundle)
		{
			base.OnCreate (bundle);

			if (ScanActivity.appKey.Length != 43) {
				AlertDialog alert = new AlertDialog.Builder (this)
					.SetTitle ("App key not set")
						.SetMessage ("Please set the app key in the ScanActivity class.")
						.SetPositiveButton("OK", delegate {})
						.Create ();

				alert.Show ();
			}

			// Set our view from the "main" layout resource
			SetContentView (Resource.Layout.Main);

			// Get our button from the layout resource,
			// and attach an event to it
			Button button = FindViewById<Button> (Resource.Id.myButton);
			
			button.Click += delegate {
				// start the scanner
				StartActivity(typeof(ScanActivity));
			};
		}

        protected override void OnCreate(Bundle bundle)
        {
            base.OnCreate (bundle);

            // Set our view from the "main" layout resource
            SetContentView ( Resource.Layout.Main );

            // Resources
            Button Button1 = FindViewById <Button> (Resource.Id.Button1);
            Button Button2 = FindViewById <Button> (Resource.Id.Button2);
            Button Button3 = FindViewById <Button> (Resource.Id.Button3);

            // Resource CallBacks
            Button1.Click += delegate {
                StartActivity ( typeof ( Game ) );
                Finish (); };

            Button2.Click += delegate {
                StartActivity ( typeof ( Instructions ) );
                Finish (); };

            Button3.Click += delegate {
                AlertDialog.Builder MessageBox = new AlertDialog.Builder ( this );
                MessageBox.SetNegativeButton ( "OK", delegate {} );
                MessageBox.SetMessage ("Xamarin Studio\n-Hussain Al-Homedawy.");
                MessageBox.Show (); };
        }

        public void Login(object sender, EventArgs e)
        {
            EditText Email = FindViewById<EditText>(Resource.Id.Email);
            EditText Password = FindViewById<EditText>(Resource.Id.Password);
            TextView tex1 = FindViewById<TextView>(Resource.Id.text1);
            TextView tex2 = FindViewById<TextView>(Resource.Id.text2);

            EmailSend = Email.Text;
            PasswordSend = Password.Text;
            ConnectDatabase data;

            string HashText = null;

            if (EmailSend == "" || PasswordSend == "" || EmailSend.Length < 5 || PasswordSend.Length < 5)
            {
                AlertDialog.Builder alert = new AlertDialog.Builder(this);
                alert.SetMessage("Invalid Username or Password");
                alert.SetTitle("Error");
                alert.SetCancelable(true);
                alert.SetPositiveButton("OK", (EventHandler<DialogClickEventArgs>)null);
                alert.Show();
            }
            else
            {
                StartActivity(typeof(StartPageActivity));
                data = new ConnectDatabase(EmailSend, PasswordSend);
                HashText = data.GetHash;
                tex1.Text = EmailSend;
                tex2.Text = HashText;

            }
        }

		public bool Display (string body, string cancelButtonTitle, string acceptButtonTitle = "", Action action = null, bool negativeAction = false)
		{
			AlertDialog.Builder alert = new AlertDialog.Builder (Forms.Context);

			alert.SetTitle ("Alert");
			alert.SetMessage (body);
			alert.SetNeutralButton (cancelButtonTitle, (senderAlert, args) => {

			});


			if (acceptButtonTitle != "") {
				if (!negativeAction) {
					alert.SetPositiveButton (acceptButtonTitle, (senderAlert, args) => {
						if (action != null) {
							action.Invoke ();
						}
					});
				} else {
					alert.SetNegativeButton (acceptButtonTitle, (senderAlert, args) => {
						if (action != null) {
							action.Invoke ();
						}
					});
				}
			}

			((Activity)Forms.Context).RunOnUiThread (() => {
				alert.Show ();
			});
			return true;
		}

        public override bool OnOptionsItemSelected(IMenuItem item)
        {
            switch (item.ItemId)
            {
                case Resource.Id.actionNew:
                    string default_game_name = "Game";
                    AlertDialog.Builder alert1 = new AlertDialog.Builder(this.Activity);
                    EditText input = new EditText(this.Activity);
                    input.Text = default_game_name;
                    alert1.SetTitle("Game Name");
                    alert1.SetView(input);
                    alert1.SetPositiveButton("OK", delegate { AddGame(input.Text); });
                    alert1.SetNegativeButton("Cancel", (s, e) => { });
                    alert1.Show();
                    _adapter.NotifyDataSetChanged();
                    return true;

                case Resource.Id.actionRefresh:
                    GameData.Service.RefreshCache();
                    _adapter.NotifyDataSetChanged();
                    return true;

                default:
                    return base.OnOptionsItemSelected(item);
            }
        }

		public MainApp(IntPtr javaReference, JniHandleOwnership transfer) : base(javaReference, transfer)
		{
			// Catch unhandled exceptions
			// Found at http://xandroid4net.blogspot.de/2013/11/how-to-capture-unhandled-exceptions.html
			// Add an exception handler for all uncaught exceptions.
			AndroidEnvironment.UnhandledExceptionRaiser += AndroidUnhandledExceptionHandler;
			AppDomain.CurrentDomain.UnhandledException += ApplicationUnhandledExceptionHandler;

			// Save prefernces instance
			Main.Prefs = new PreferenceValues(PreferenceManager.GetDefaultSharedPreferences(this));

			// Get path from preferences or default path
			string path = Main.Prefs.GetString("filepath", Path.Combine(global::Android.OS.Environment.ExternalStorageDirectory.AbsolutePath, "WF.Player"));

			try {
				if (!Directory.Exists (path))
					Directory.CreateDirectory (path);
			}
			catch {
			}

			if (!Directory.Exists (path))
			{
				AlertDialog.Builder builder = new AlertDialog.Builder (this);
				builder.SetTitle (GetString (Resource.String.main_error));
				builder.SetMessage(String.Format(GetString(Resource.String.main_error_directory_not_found), path));
				builder.SetCancelable (true);
				builder.SetNeutralButton(Resource.String.ok,(obj,arg) => { });
				builder.Show ();
			} else {
				Main.Path = path;
				Main.Prefs.SetString("filepath", path);
			}
		}

        protected override void OnCreate(Bundle bundle)
        {
            base.OnCreate(bundle);
            RequestWindowFeature(WindowFeatures.NoTitle);
            SetContentView(Resource.Layout.GetMain);

            Button back = FindViewById<Button>(Resource.Id.GetMian_cancel);
            ListView list = FindViewById<ListView>(Resource.Id.GetMian_items);
            Button save = FindViewById<Button>(Resource.Id.GetMian_save);
            OnBind();
            save.Click += delegate 
            {
                AlertDialog.Builder builder = new AlertDialog.Builder(this);
                builder.SetTitle("提示：");
                builder.SetMessage("确认同步订单吗？");
                builder.SetNegativeButton("确定", delegate 
                {
                    string msg = Sync.syncOrder();
                    AlertDialog.Builder bd = new AlertDialog.Builder(this);
                    bd.SetTitle("提示：");
                    bd.SetMessage(msg);
                    bd.SetNegativeButton("确定", delegate { });
                    bd.Show();
                });
                builder.Show();
            };
            back.Click += delegate 
            {
                Intent intent = new Intent();
                intent.SetClass(this, typeof(Index));
                StartActivity(intent);
                Finish();
            };
            new Core.Menu(this);
        }

        public static void MsgBox(Context context,
			string msg, 
			string Titolo = "Vegetha", 
			string PositiveText = "OK", 
			Action PositiveAction = null, 
			string NegativeText ="",
			Action NegativeAction = null)
        {
            AlertDialog.Builder d = new AlertDialog.Builder (context);
            d.SetTitle(Titolo);
            d.SetMessage (msg);
            if (PositiveAction != null) {
                d.SetPositiveButton (PositiveText, (sender, e) => {
                    PositiveAction.Invoke();
                });
            } else {
                d.SetPositiveButton (PositiveText, (sender, e) => {

                });
            }

            if (NegativeAction != null) {
                d.SetNegativeButton (NegativeText, (sender, e) => {
                    NegativeAction.Invoke ();
                });
            }
            d.Show ();
        }

 /// <summary>
 ///     Shows a dialog with title and message. Contains only an OK button.
 /// </summary>
 /// <param name="title">Title to display.</param>
 /// <param name="message">Text to display.</param>
 public async Task ShowMessage(string title, string message)
 {
     var builder = new AlertDialog.Builder(CurrentActivity);
     builder.SetTitle(title);
     builder.SetMessage(message);
     builder.Show();
 }

		private void initListeners()
		{
			create.Click += delegate 
			{
				if(!validdateForm()) return;
				create.Enabled = false;
				var task = Task<TournamentModel>.Factory.StartNew(() => ServerData.createTournament(name.Text, Session.Instance().CurrentUser.Id));
				task.ContinueWith(x =>     
				{
					create.Enabled = true;
					try 
					{
						if (x.Exception != null) throw x.Exception.InnerException;
						// Success
						Session.Instance().selectedTournament = task.Result;
						StartActivity(typeof(TournamentDetails));
						Finish();
					}
					catch (WebException e)
					{
						var builder = new AlertDialog.Builder(this);
						builder.SetMessage("Er is iets mis met de verbinding, probeer het later opnieuw.");
						builder.SetCancelable(false);
						builder.SetPositiveButton("OK", delegate { });
						builder.Show();
					}
				},
				TaskScheduler.FromCurrentSynchronizationContext());
			};
		}

        protected override void OnCreate(Bundle bundle)
        {
            base.OnCreate (bundle);

            // Set our view from the "main" layout resource.
            SetContentView (Resource.Layout.Main);

            // Get our UI controls from the loaded layout:
            EditText phoneNumberText = FindViewById<EditText>(Resource.Id.PhoneNumberText);
            Button translateButton = FindViewById<Button>(Resource.Id.TranslateButton);
            Button callButton = FindViewById<Button>(Resource.Id.CallButton);
            Button callHistoryButton = FindViewById<Button> (Resource.Id.CallHistoryButton);

            // Disable the "Call" button.
            callButton.Enabled = false;

            // Add code to translate number.
            string translatedNumber = string.Empty;

            translateButton.Click += (object sender, EventArgs e) => {
                // Translate user's alphanumeric phone number to numeric.
                translatedNumber = Core.PhonewordTranslator.ToNumber(phoneNumberText.Text);

                if (String.IsNullOrWhiteSpace(translatedNumber)) {
                    callButton.Text = "Call";
                    callButton.Enabled = false;
                } else {
                    callButton.Text = "Call " + translatedNumber;
                    callButton.Enabled = true;
                }
            };

            callButton.Click += (object sender, EventArgs e) => {
                // On "Call" button click, try to dial phone number.
                var callDialog = new AlertDialog.Builder(this);
                callDialog.SetMessage("Call " + translatedNumber + "?");
                callDialog.SetNeutralButton("Call", delegate {
                    // Add dialed number to list of called numbers.
                    phoneNumbers.Add(translatedNumber);

                    // Enable the Call History button.
                    callHistoryButton.Enabled = true;

                    // Create intent to dial phone.
                    var callIntent = new Intent(Intent.ActionCall);
                    callIntent.SetData(Android.Net.Uri.Parse("tel:" + translatedNumber));
                    StartActivity(callIntent);
                });
                callDialog.SetNegativeButton("Cancel", delegate {});

                // Show the alert dialog to the user and wait for response.
                callDialog.Show();
            };

            callHistoryButton.Click += (sender, e) => {
                var intent = new Intent(this, typeof(CallHistoryActivity));
                intent.PutStringArrayListExtra("phone_numbers", phoneNumbers);
                StartActivity(intent);
            };
        }

		/**
	     * Show End User License Agreement.
	     *
	     * @param accepted True IFF user has accepted license already, which means it can be dismissed.
	     *                 If the user hasn't accepted, then the EULA must be accepted or the program
	     *                 exits.
	     * @param activity Activity started from.
	     */
		public static void ShowEula(bool accepted, Activity activity)
		{
			AlertDialog.Builder eula = new AlertDialog.Builder(activity)
				.SetTitle(Resource.String.eula_title)
				.SetIcon(Android.Resource.Drawable.IcDialogInfo)
				.SetMessage(Resource.String.eula_text)
				.SetCancelable(accepted);
			
			if (accepted) 
			{
				eula.SetPositiveButton(Android.Resource.String.Ok, (object dialog, DialogClickEventArgs which) => {
					(dialog as IDialogInterface).Dismiss();	
				});
			} else {
				eula.SetPositiveButton(Resource.String.accept,(object dialog, DialogClickEventArgs which) => {
					SetAcceptedEula(activity);
					(dialog as IDialogInterface).Dismiss();
				})
				.SetNegativeButton(Resource.String.decline, (object dialog, DialogClickEventArgs which) => { 
					(dialog as IDialogInterface).Cancel();
					activity.Finish();
				});
			}
			eula.Show();
		}

        public async void Register(View view)
        {
            ProgressDialog dialog = DialogHelper.CreateProgressDialog("Registering...", this);
            dialog.Show();

            RegisterRequest request = new RegisterRequest
            {
                FirstName = FindViewById<EditText>(Resource.Id.registerFirstName).Text,
                LastName = FindViewById<EditText>(Resource.Id.registerLastName).Text,
                StudentId = FindViewById<EditText>(Resource.Id.registerStudentId).Text,
                Password = FindViewById<EditText>(Resource.Id.registerPassword).Text
            };
            
            GenericResponse Response = await Services.Auth.Register(request);
            dialog.Hide();

            if (Response.Success)
            {
                AlertDialog.Builder builder = new AlertDialog.Builder(this, Resource.Style.LightDialog);
                builder.SetTitle("Successfully Registered");
                builder.SetMessage("Please check your UTS email for instructions to confirm your account");
                builder.SetCancelable(false);
                builder.SetPositiveButton("OK", delegate { Finish(); });
                builder.Show();
            }
            else
            {
                DialogHelper.ShowDialog(this, Response.Message, Response.Title);
            }
        }

        protected override void OnCreate(Bundle bundle)
        {
            base.OnCreate (bundle);

            // Set our view from the "main" layout resource
            SetContentView (Resource.Layout.Main);
            button = FindViewById<Button> (Resource.Id.button);

            button.Click += (o, e) =>  {
                // use an array adapter to populate a spinner item from our string array
                ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
                    Android.Resource.Layout.SimpleSpinnerItem, villains);

                // create the spinner and populate it with our items
                Spinner spinner = new Spinner(this);
                spinner.LayoutParameters = new LinearLayout.LayoutParams (ViewGroup.LayoutParams.WrapContent, ViewGroup.LayoutParams.WrapContent);
                spinner.Adapter = adapter;

                // handle item selection
                spinner.ItemSelected += new EventHandler<AdapterView.ItemSelectedEventArgs> (ItemSelected);

                // build the alert dialog
                AlertDialog.Builder builder = new AlertDialog.Builder(this);
                builder.SetView(spinner);
                builder.SetNeutralButton("OK", delegate {});
                builder.Show();
            };
        }

        public List<Game> GetFavoriteGameList(Context Context, string AccountIdentifier)
        {
            XmlDocument doc = new XmlDocument ();
            List<Game> gamesList = new List<Game>();

            try
            {
                doc.Load("http://thegamesdb.net/api/User_Favorites.php?=accountid=" + AccountIdentifier);

                XmlNodeList nodes = doc.DocumentElement.SelectNodes("/Favorites");

                foreach (XmlNode node in nodes)
                {
                    if(node.SelectSingleNode("Game") != null)
                    {
                        gamesList.Add(GetGame(Context, node.SelectSingleNode("Game").Value));
                    }
                }

                return gamesList;
            }
            catch
            {
                var errorDialog = new AlertDialog.Builder(Context).SetTitle("Oops!").SetMessage("There was a problem getting Favorites, please try again later.").SetPositiveButton("Okay", (sender1, e1) =>
                {

                }).Create();
                errorDialog.Show();

                return gamesList;
            }
        }