我已在 App.xaml.cs
中修改了我的代码但是我在“this.ApplicationLifetimeObjects.Add（new XNAAsyncDispatcher（TimeSpan.FromMilliseconds（50）））;”（放置在我的App.xaml.cs末尾）时出错了
错误是
以下是我的App.xaml.cs
的整个部分namespace Alarm_Clock
{
public class GlobalData
{
public BitmapImage bitmapImage;
}
public partial class App : Application
{
public static GlobalData globalData;
public class XNAAsyncDispatcher : IApplicationService
{
private readonly DispatcherTimer _frameworkDispatcherTimer;
public XNAAsyncDispatcher(TimeSpan dispatchInterval)
{
_frameworkDispatcherTimer = new DispatcherTimer();
_frameworkDispatcherTimer.Tick += frameworkDispatcherTimer_Tick;
_frameworkDispatcherTimer.Interval = dispatchInterval;
}
void IApplicationService.StartService(ApplicationServiceContext context) { _frameworkDispatcherTimer.Start(); }
void IApplicationService.StopService() { _frameworkDispatcherTimer.Stop(); }
void frameworkDispatcherTimer_Tick(object sender, EventArgs e) { FrameworkDispatcher.Update(); }
}
public static string imagePath
{
//get { return "PhotoNote_{0:yyyy-MM-dd_hh-mm-ss-tt}.jpg"; }
get;
set;
}
/// <summary>
/// Provides easy access to the root frame of the Phone Application.
/// </summary>
/// <returns>The root frame of the Phone Application.</returns>
public PhoneApplicationFrame RootFrame { get; private set; }
//Global variables for the WriteableBitmap objects used throughout the application.
public static WriteableBitmap CapturedImage;
/// <summary>
/// Constructor for the Application object.
/// </summary>
public App()
{
globalData = new GlobalData();
globalData.bitmapImage = new BitmapImage();
// Global handler for uncaught exceptions.
UnhandledException += Application_UnhandledException;
// Show graphics profiling information while debugging.
if (System.Diagnostics.Debugger.IsAttached)
{
// Display the current frame rate counters.
Application.Current.Host.Settings.EnableFrameRateCounter = true;
// Show the areas of the app that are being redrawn in each frame.
//Application.Current.Host.Settings.EnableRedrawRegions = true;
// Enable non-production analysis visualization mode,
// which shows areas of a page that are being GPU accelerated with a colored overlay.
//Application.Current.Host.Settings.EnableCacheVisualization = true;
}
// Standard Silverlight initialization
InitializeComponent();
// Phone-specific initialization
InitializePhoneApplication();
}
// Code to execute when the application is launching (eg, from Start)
// This code will not execute when the application is reactivated
private void Application_Launching(object sender, LaunchingEventArgs e)
{
}
// Code to execute when the application is activated (brought to foreground)
// This code will not execute when the application is first launched
private void Application_Activated(object sender, ActivatedEventArgs e)
{
}
// Code to execute when the application is deactivated (sent to background)
// This code will not execute when the application is closing
private void Application_Deactivated(object sender, DeactivatedEventArgs e)
{
}
// Code to execute when the application is closing (eg, user hit Back)
// This code will not execute when the application is deactivated
private void Application_Closing(object sender, ClosingEventArgs e)
{
}
// Code to execute if a navigation fails
private void RootFrame_NavigationFailed(object sender, NavigationFailedEventArgs e)
{
if (System.Diagnostics.Debugger.IsAttached)
{
// A navigation has failed; break into the debugger
System.Diagnostics.Debugger.Break();
}
}
// Code to execute on Unhandled Exceptions
private void Application_UnhandledException(object sender, ApplicationUnhandledExceptionEventArgs e)
{
if (System.Diagnostics.Debugger.IsAttached)
{
// An unhandled exception has occurred; break into the debugger
System.Diagnostics.Debugger.Break();
}
}
#region Phone application initialization
// Avoid double-initialization
private bool phoneApplicationInitialized = false;
// Do not add any additional code to this method
private void InitializePhoneApplication()
{
if (phoneApplicationInitialized)
return;
// Create the frame but don't set it as RootVisual yet; this allows the splash
// screen to remain active until the application is ready to render.
RootFrame = new PhoneApplicationFrame();
RootFrame.Navigated += CompleteInitializePhoneApplication;
// Handle navigation failures
RootFrame.NavigationFailed += RootFrame_NavigationFailed;
// Ensure we don't initialize again
phoneApplicationInitialized = true;
}
// Do not add any additional code to this method
private void CompleteInitializePhoneApplication(object sender, NavigationEventArgs e)
{
// Set the root visual to allow the application to render
if (RootVisual != RootFrame)
RootVisual = RootFrame;
// Remove this handler since it is no longer needed
RootFrame.Navigated -= CompleteInitializePhoneApplication;
}
#endregion
this.ApplicationLifetimeObjects.Add(new XNAAsyncDispatcher(TimeSpan.FromMilliseconds(50)));
}
}
暂停只是在我的代码中不起作用。
这是我的整段代码：
namespace Alarm_Clock
{
public partial class AlarmRing : PhoneApplicationPage
{
int songSelectedIndex;
public AlarmRing()
{
InitializeComponent();
SupportedOrientations = SupportedPageOrientation.Portrait;
//Get the DateTime.Now and place it into "timeTxtBlock" text block
timeTxtBlock.Text = DateTime.Now.ToShortTimeString();
//Read from Isolated storage queSetting.txt for the number of question to answer by the user
//Read from Isolated storage music.txt for the selected music to play when the alarm ring
var isoFile = IsolatedStorageFile.GetUserStoreForApplication();
IsolatedStorageFile myStore = IsolatedStorageFile.GetUserStoreForApplication();
try
{
StreamReader readFile = new StreamReader(new IsolatedStorageFileStream("SettingFolder\\music.txt", FileMode.Open, myStore));
songSelectedIndex = Convert.ToInt16(readFile.ReadLine());
readFile.Close();
}
catch (Exception)
{
//If the user did not select the music to be played when the alarm ring it will play the first music by default
songSelectedIndex = 0;
}
using (var ml = new MediaLibrary())
{
//Play the music using media player from the song collection
FrameworkDispatcher.Update();
MediaPlayer.MediaStateChanged += new EventHandler<EventArgs>(MediaPlayer_MediaStateChanged);
MediaPlayer.Play(ml.Songs[songSelectedIndex]);
MediaPlayer.IsRepeating = true;
MediaPlayer.IsMuted = false;
MediaPlayer.IsShuffled = false;
MediaPlayer.IsVisualizationEnabled = false;
}
//Load code
loadtime();
}
static void MediaPlayer_MediaStateChanged(object sender, EventArgs e)
{
if (MediaPlayer.State == MediaState.Paused)
{
MediaPlayer.Resume();
}
}
void loadtime()
{
ringingAlarm.Begin();
//Get the DateTime.Now
String timeNow = DateTime.Now.ToShortTimeString();
using (IsolatedStorageFile storage = IsolatedStorageFile.GetUserStoreForApplication())
{
foreach (string labels in storage.GetFileNames("*"))
{
XElement _xml;
IsolatedStorageFileStream location = new IsolatedStorageFileStream(labels, System.IO.FileMode.Open, storage);
System.IO.StreamReader file = new System.IO.StreamReader(location);
_xml = XElement.Parse(file.ReadToEnd());
if (_xml.Name.LocalName != null)
{
XAttribute time = _xml.Attribute("time");
//Get the day of the week
String dayOfWeek = DateTime.Now.DayOfWeek.ToString("F");
if (timeNow == time.Value.ToString())
{
//"textBlock2" text block will display the label of the alarm
textBlock2.Text = labels;
}
}
file.Dispose();
location.Dispose();
}
}
}
string settingQues;
string settingQuesPassToGame;
string format;
string format1;
protected override void OnNavigatedTo(System.Windows.Navigation.NavigationEventArgs e)
{
base.OnNavigatedTo(e);
//Try get the value of number of question to be answered by the user that is pass over from setClockPage.xaml
if (NavigationContext.QueryString.TryGetValue("settingQues", out settingQues))
settingQuesPassToGame = settingQues;
//Try get the format that is passed over
if (NavigationContext.QueryString.TryGetValue("format", out format))
format1 = format;
}
//Display a pop up message box with instruction
//And navigate to "Start.xaml"
private void gameBtn_Click(object sender, RoutedEventArgs e)
{
MessageBox.Show("To dismiss alarm" + System.Environment.NewLine + "- Answer selected IQ question" + System.Environment.NewLine + "- With all correct answer");
NavigationService.Navigate(new Uri("/Start.xaml?ringingAlarmTitle=" + textBlock2.Text + "&ringingAlarmTime=" + timeTxtBlock.Text + "&format1=" + format1, UriKind.Relative));
}
protected override void OnBackKeyPress(System.ComponentModel.CancelEventArgs e)
{
e.Cancel = true;
}
public Visibility visible { get; set; }
}
}
当我在构造函数中放置MediaPlayer.MediaStateChanged += new EventHandler<EventArgs>(MediaPlayer_MediaStateChanged);时会出错。
错误为MediaPlayer.MediaStateChanged += new EventHandler<EventArgs>(MediaPlayer_MediaStateChanged) is a method but is use like a type。
我已更改了我的代码，但仍然无法正常工作
static void MediaPlayer_MediaStateChanged(object sender, EventArgs e)
{
if (MediaPlayer.State == MediaState.Paused)
{
MediaPlayer.Resume();
}
}
答案 0 :(得分：1)
您必须在Windows Phone 7应用程序中发送XNA事件手册：
public class XNAAsyncDispatcher : IApplicationService
{
private readonly DispatcherTimer _frameworkDispatcherTimer;
public XNAAsyncDispatcher(TimeSpan dispatchInterval)
{
_frameworkDispatcherTimer = new DispatcherTimer();
_frameworkDispatcherTimer.Tick += frameworkDispatcherTimer_Tick;
_frameworkDispatcherTimer.Interval = dispatchInterval;
}
void IApplicationService.StartService(ApplicationServiceContext context) { _frameworkDispatcherTimer.Start(); }
void IApplicationService.StopService() { _frameworkDispatcherTimer.Stop(); }
void frameworkDispatcherTimer_Tick(object sender, EventArgs e) { FrameworkDispatcher.Update(); }
}
将此添加到public App()
public App()
{
// Other stuff
// End
this.ApplicationLifetimeObjects.Add(new XNAAsyncDispatcher(TimeSpan.FromMilliseconds(50)));
}