I'm new to Windows Phone development and I'm trying to do a simple training app.
I want my app to load some audio files that I've put into a folder inside the project.
Here's a short snippet:
private void LoadSound(String SoundFilePath, out SoundEffect Sound)
{
// For error checking, assume we'll fail to load the file.
Sound = null;
try
{
// Holds informations about a file stream.
StreamResourceInfo SoundFileInfo = Application.GetResourceStream(new Uri(SoundFilePath, UriKind.Relative));
My folder structure is something like
- Project
- Kits
- TestKit_128
- Bass_126.wav
and calling
Button.setSound("Kits\\TestKit_128\\bass_126.wav");
throws a System.NullReferenceException because the path is not found when the URI is created. (At least I think so!)
What should I do?
Is there any way to load files from a folder in the project or to copy them into the IsolatedStorage when I run the app for the first time?
Thanks
EDIT:
I've just opened the XAP file with WinRar and there's no "Kits" folder so I guess that my problem is how to make it add the folder to the XAP file.
I think you have to add the folder and the file to your project (i assume you are using Visual Studio). Try rightclick on your solution and add an existing object (in this case your wav file).
Did you set the build action of the wav file to "Content"? Right click on the WAV file --> properties --> build action == content.
Try this:
Uri uri = new Uri("Kits/TestKit_128/bass_126.wav", UriKind.Relative);//Above the Kits folder only the project itself.
StreamResourceInfo sr = Application.GetResourceStream(uri);
try
{
using (Stream stream = sr.Stream)
{
//working here with your data image or wav or whatever you want from URI
}
}
catch (Exception)
{
}
This is for resource inside project and working good for me. Also prevoius note about "Content" is right, it wouldn't work without it. I think the problem is double-slashes in address.
Related
I've added a test.zip to a C# project by creating a Resource1.resx and dragged to the resx tab. It is now visible in the Solution Explorer as a child of Resources.
When the program runs, I'd like to move it from the .exe to a location on the computer like My Documents.
I've a feeling I need to convert the resource to a memory stream before I can write it to file but I'm not sure how to access the file as resource or how to convert it.
I think the following extracts the resource object (then again, it doesn't error no matter what the first param is) but I'm not sure how to proceed:
var resource = new ResourceManager("test", Assembly.GetExecutingAssembly());
Since you activate the resources you have already a ResourceManager.Just use GetObject method,get the bytes of your file and write the them to a new file with File.WriteAllBytes:
var bytes = Properties.Resources.ResourceManager.GetObject("resourceName") as byte[];
File.WriteAllBytes("newFile.zip", bytes);
You should use Assembly.GetManifestResourceStream.
using (Stream x = Assembly.GetExecutingAssembly().GetManifestResourceStream("test"))
{
...
}
Reference to MSDN.
I have this chunk of code:
private void button4_MouseEnter(object sender, MouseEventArgs e)
{
System.Media.SoundPlayer player = new System.Media.SoundPlayer(#"Resources/navigation.wav");
player.Play();
}
And I get FileNotFoundException, but navigation.wav is in Project/Resources. Plese help!!!
This looks for the file from your Bin\Debug Folder
You have couple of options:
Right click the file and pick Properties. Select for BuildAction = Content.
You will find the file under Bin\Debug\Resource\Sound.wav
Right click the file and pick Properties. Select for BuildAction = Embedded Resource.
var assembly = Assembly.GetExecutingAssembly();
var resourceName = "NamespaceName.FolderName.Sound.wav";
using (Stream stream = assembly.GetManifestResourceStream(resourceName))
{
var wave = new WaveFileReader(stream);
Console.WriteLine(wave.TotalTime);
}
The path is determined relatively from the executable, so in this case probably Bin\Debug.
Try to add the resource in your application as Content (it copies the file to Bin\Debug). That should work.
That path is relative to the directory in which the application is currently running. If you hit F5 in Visual Studio this is most probably bin/Debug, so the file should be there.
Consider embedding this resource, or setting Copy to output directory property to "copy always".
To start with, you need a backslash: #"Resources\navigation.wav"
If this doesn't help, then most likely you are running your application from a different directory than you think. Are you running in debug mode from VS? Is your file in Project\bin\Debug\Resources then?
I know that MS Windows Phone has not nice policy of forbiddings simple saving files on the phone. I want to have one file consisting data which looks like that:
//string double
A 444,0
B 332,240
...
This is database of tone corresponding to the frequency in Hz. How to built it into the app so I can read it later. I do not want to create during the run of the app but want it to be created already as a source of data for the app so I can read it.
Add the file to your project, and in the properties window for the file, set the build action to Resource.
In your code, you can retrieve a StreamResourceInfo instance by calling the Application.GetResourceStream method and then reading from it's stream using a StreamReader.
The path to the file will be "/AssemblyName;component/Folder/File.ext". Where "AssemblyName" is the name of your assembly, and "/Folder/File.ext" is the path to the file relative to your project root. For example. The following code reads the "/Data/tones.txt" file:
private void ReadTones()
{
string tonesPath = "/PhoneReadFileResource;component/Data/tones.txt";
Uri tonesUri = new Uri(tonesPath, UriKind.Relative);
StreamResourceInfo sri = Application.GetResourceStream(tonesUri);
StreamReader rdr = new StreamReader(sri.Stream);
TextDisplay.Text = rdr.ReadToEnd();
}
You can download a sample project based on your question here: http://sdrv.ms/RnVbQ3
I'm trying to play a small video file in my windows phone application. Is pretty basic
void StartMediaPlayer()
{
MediaPlayerLauncher mediaPlayerLauncher = new MediaPlayerLauncher();
mediaPlayerLauncher.Media = new Uri("/Assets/video/video1.wmv", UriKind.Relative);
mediaPlayerLauncher.Location = MediaLocationType.Install;
mediaPlayerLauncher.Controls = MediaPlaybackControls.All;
mediaPlayerLauncher.Orientation = MediaPlayerOrientation.Landscape;
mediaPlayerLauncher.Show();
}
i call this void on image tap event, and this is what happend
the debugger show that the error is here: mediaPlayerLauncher.Show();
That error will be thrown the application can't find your file /Assets/video/video1.wmv in the install directory on the phone. Make sure that your video is in your project, and is set to build type "Content". You could open the XAP file to double-check it's in the correct relative location too (it's just a ZIP file archive renamed).
if some has the same problem, just a heads up the files should be in main directory
mediaPlayerLauncher.Media = new Uri("video1.wmv", UriKind.Relative);
C# - Loading image from file resource in different assembly
I have a PNG image file which is stored in a project called SomeProject and displayed various times using XAML in that same project. In a different assembly, I now wish to access that same image. Previously I was simply specifying a relative path to the actual file which worked fine. However, when I build a release installer, the image files are packed into the SomeProject.DLL.
Is there any easy way I can access the PNG file from another assembly without simply resorting to copying the file locally to the second project? I though it might be possible using 'pack://' but I'm not having much luck.
// SomeOtherProject.SomeClass.cs ...
Image logo = new Image();
BitmapImage logoSource = new BitmapImage();
eChamSource.BeginInit();
// Following line works fine is Visual Studio, but obviously not after installation
// logoSource.UriSource = new Uri(#"..\SomeProject\Resources\Images\logo.png", UriKind.Relative);
logoSource.UriSource = new Uri("pack://application:,,,/SomeProject;component/Resources/Images/logo.png");
logoSource.EndInit();
logo.Width = 100; logo.Height = 100;
logo.Source = logoSource;
Any advice would be good.
If the images you wish to use as Content is in another assembly, you must copy them to the main projects directory.
You can use a Build event to do this:
Right click project that contains images -> Properties -> Buil Events -> edit post build to copy images to main project directory.
Then you have to use it as
pack://application:,,,/ContentFile.xaml
(Or)
If you need it in subfolder
pack://application:,,,/Subfolder/ContentFile.xaml
Have a look at this hfor more information http://msdn.microsoft.com/en-us/library/aa970069.aspx
Try to load your other assembly as followed:
Application.LoadComponent(new Uri(#"AnotherAssembly;;;component\AnotherResourceFilePath/logo.png", UriKind.Relative)));
LoadComponent function returns an object. It is up to you to cast it to the appropriate type.