I want to play an audio of an image whenever click on it .If we click on another image that sound will play in that way we want write the logic.
If you're binding to an object that has the image uri and audio clip uri:
<Image Source="{Binding ImagePath}" Tag="{Binding AudioPath} MouseLeftButtonDown="img_MouseLeftButtonDown" />
then in the event handler
void img_MouseLeftButtonDown(object sender,MouseButtonEventArgs e)
{
Image img = sender as Image;
if (img != null)
mePlayer.Source = img.Tag as Uri;
}
i dont recommend mediaElement for more than one audio item ..it has weird effects ...use something like:
Stream stream = TitleContainer.OpenStream(#"Audio/buzzer.wav");
SoundEffect effect = SoundEffect.FromStream(stream);
FrameworkDispatcher.Update();
effect.Play();
using the xna framework ....
Related
For a xamarin project, I am using CrossMediaManager from https://github.com/Baseflow/XamarinMediaManager , it works fine for playing video and audio. I have a video view on the form which displays video for a video url, but for Audio it remains blank and black.
How can I set it source to some image file, so it looks bit better. Setting Source property doesnt work. The image file does exists in both the plateforms as we are using it for some reasons also.
I tried doing using code.
videoPlayer.Source = "SomeImageFile";
Thanks
You could use a image to cover the VideoView when it play the audio.
Xaml:
<StackLayout>
<Grid>
<mm:VideoView x:Name="video" ShowControls="True" />
<Image Source="pink.jpg" />
</Grid>
<Button Clicked="BtnPlayLocal_Clicked" Text="play local video" />
</StackLayout>
Code behind:
private void BtnPlayLocal_Clicked(object sender, EventArgs e)
{
//audio
CrossMediaManager.Current.Play("https://ia800806.us.archive.org/15/items/Mp3Playlist_555/AaronNeville-CrazyLove.mp3");
// video
//http://clips.vorwaerts-gmbh.de/big_buck_bunny.mp4
}
I'm new to UWP development & I'm just showing image in my app from the Music Library.
Infact, I have added Music Library in the app's "Capabilities" & I can confirm that I have access to Music Library as I can read & write files in it.
But when I try to load a image in XAML, it just does not shows...
<Image Height="200" Width="200" Source="C:/Users/Alex Mercer/Music/Album/albumArt.png" />
Please help me understand & solve the problem.
😃 Thanks a lot!
Although we enable the corresponding capabilities, accessing files through paths is still strictly restricted in UWP.
In fact, it is not a good idea to write the full path in XAML, because you cannot guarantee that the path must exist on the device where the application is installed.
To display the pictures in the music library, you can do this:
xaml
<Image Height="200" Width="200" x:Name="AlbumImage" Loaded="AlbumImage_Loaded"/>
xaml.cs
private async void AlbumImage_Loaded(object sender, RoutedEventArgs e)
{
try
{
var albumFolder = await KnownFolders.MusicLibrary.GetFolderAsync("Album");
var albumPic = await albumFolder.GetFileAsync("albumArt.png");
var bitmap = new BitmapImage();
using (var stream = await albumPic.OpenAsync(FileAccessMode.Read))
{
await bitmap.SetSourceAsync(stream);
}
AlbumImage.Source = bitmap;
}
catch (FileNotFoundException)
{
// File or Folder not found
}
catch (Exception)
{
throw;
}
}
I want to convert a pdf file to an image UI control in UWP using c#, xaml.
I've read another way to use the Flip Viewer, but I need each image file of the converted PDF file.
so I modified a bit of the existing sample To open a pdf file.
And my problem is that the quality of the converted image file is extremely bad.
I can not even see the letters.
but this quality problem is same on other pdf sample.
Take a look at my code.
private PdfDocument pdfDocument;
private async void LoadDocument()
{
pdfDocument = null;
//Output means my image UI control (pdf image will be added)
Output.Source = null;
//PageNumberBox shows current page
PageNumberBox.Text = "1";
var picker = new FileOpenPicker();
picker.FileTypeFilter.Add(".pdf");
StorageFile file = await picker.PickSingleFileAsync();
if (file != null)
{
try
{
pdfDocument = await PdfDocument.LoadFromFileAsync(file);
}
catch (Exception ex)
{
}
if (pdfDocument != null)
{ // I use this text to move page.
PageCountText.Text = pdfDocument.PageCount.ToString();
}
}
uint pageNumber;
if (!uint.TryParse(PageNumberBox.Text, out pageNumber) || (pageNumber < 1) || (pageNumber > pdfDocument.PageCount))
{
return;
}
Output.Source = null;
// Convert from 1-based page number to 0-based page index.
uint pageIndex = pageNumber-1 ;
using (PdfPage page = pdfDocument.GetPage(pageIndex))
{
var stream = new InMemoryRandomAccessStream();
await page.RenderToStreamAsync(stream);
BitmapImage src = new BitmapImage();
Output.Source = src;
await src.SetSourceAsync(stream);
}
}
And this is my xaml code.
<Grid>
<ScrollViewer >
<TextBlock Name="ViewPageLabel"VerticalAlignment="center">Now page</TextBlock>
<TextBox x:Name="PageNumberBox" InputScope="Number" Width="30" Text="1" TextAlignment="Right" Margin="5,0,5,0"
AutomationProperties.LabeledBy="{Binding ElementName=ViewPageLabel}"/>
<TextBlock VerticalAlignment="Center">of <Run x:Name="PageCountText"/>.</TextBlock>
</ScrollViewer>
</Grid>
Is there any suggestions?
Please help me.
Thanks for reading this.
Ran into this issue recently, didn't see any definitive answer here, so here it goes:
JosephA is on the right track, but PdfPageRenderOptions does not have anything about image fidelity/quality or anything like that like I had hoped. However, it does allow you to specify image dimensions. All you have to do is scale up the dimensions.
I suspect what's going on is that the PDF has a scale that it would "like" to use, which is smaller than the image you want to draw. Without specifying dimensions, it's drawing the "small" image and then it's getting scaled up, causing the blurriness.
Instead, if you tell it to draw the image at a higher resolution explicitly, it will do PDF magic to make those lines crisper, and the resulting raster image won't have to scale/blur.
PdfPage page = _document.GetPage(pageIndex);
await page.RenderToStreamAsync(stream, new PdfPageRenderOptions {
DestinationWidth = (uint)page.Dimensions.MediaBox.Width * s,
DestinationHeight = (uint)page.Dimensions.MediaBox.Height * s
});
Something like this helps, where "s" is the scale factor to achieve the dimensions you need.
PdfPage.Dimensions has a number of different properties other than just "MediaBox" that you may want to explore as well depending on your use case.
It sounds like you are encountering the common problem where you need to dynamically adjust the resolution the PDF page is rendered at to an image.
I am not familiar with the that PDF library however it appears you need to use the RenderToStreamAsync() overload that takes a PdfPageRenderOptions parameter to accomplish this.
On WP7 platform (using C# and Silverlight) I try to play an online stream into a MediaElement...
Here is the C# code:
(...)
WebClient wc = new WebClient();
wc.OpenReadCompleted += (s, e) =>
{
try
{
mediaElement.SetSource(e.Result);
}
catch (Exception we)
{
System.Diagnostics.Debug.WriteLine(we.Message);
}
};
wc.OpenReadAsync(new Uri(url, UriKind.Absolute));
(...)
Here is the XAML source code:
<MediaElement Height="316" HorizontalAlignment="Left" Margin="6,6,0,0" Name="mediaElement" VerticalAlignment="Top" Width="450" AutoPlay="False" />
The url is type of http://.../Manifest and the format is a one supported by the platform.
When SetSource is called then an exception is raised with the following message
"Stream must be of type IsolatedStorageFileStream".
What do I do wrong?
Thanks in advance for some help
Cheers
MSDN says:
Passing a generic stream to SetSource(System.IO.Stream) is not supported in Silverlight for Windows Phone. However, the IsolatedStorageFileStream class, which derives from Stream, is suppoted on Silverlight for Windows Phone.
Instead, consider setting the MediaElement.Source property directly to the stream uri. There's no reason to "download" it first.
I'm looking for a photo gallery for Windows Phone 7. Something that looks and works the same as the built-in photo viewer (slide photo's using a flick action, resize using pinch, drag). When you flick the image you can see it sliding to the next image...and snaps the list to that image.
I already built the resize and drag functionality for the images. I just can't figure out how to create the actual photo slider.
Can anyone point me into the right direction?
Things i've tried:
Pivot Viewer (doesn't work because it interferes with the drag functions of the image, haven't been able to disable the pivot viewer touch)
Plain listbox (can't find how to snap to the current image)
Thanks in advance
Actually I've implemented exactly what you are saying in one of my apps,
You need to use Silverlight Control TOolkit's gesture listener to capture Drag and Pinch from touch.
define a CompositeTransformation for your image and set it's scale (on pinch) and Offset (in drag).
Obviously when the image is not zoom, drag can trigger going to next image.
To make it feel smoother, you may want to define a storyboard on your page resources to use (instead of just settings Offset)
I hope it can help/
Drag handlers pseudo code for slider effect:
<Canvas>
<Image x:Name="imgImage" Source="{Binding ...}" Width="..." Height="...">
<Image.RenderTransform>
<CompositeTransform x:Name="imgImageTranslate" />
</Image.RenderTransform>
</Image>
</Canvas>
private void GestureListener_DragCompleted(object sender, DragCompletedGestureEventArgs e)
{
if (e.Direction == System.Windows.Controls.Orientation.Horizontal)
{
var abs = Math.Abs(PANEL_DRAG_HORIZONTAL);
if (abs > 75)
{
if (PANEL_DRAG_HORIZONTAL > 0) // MovePrevious;
else //MoveNext();
e.Handled = true;
}
}
}
double PANEL_DRAG_HORIZONTAL = 0;
private void GestureListener_DragDelta(object sender, DragDeltaGestureEventArgs e)
{
if (e.Direction == System.Windows.Controls.Orientation.Horizontal)
{
PANEL_DRAG_HORIZONTAL += e.HorizontalChange;
var baseLeft = -imgImage.Width / 2;
if (PANEL_DRAG_HORIZONTAL > 75) imgImageTranslate.OffsetX = baseLeft + PANEL_DRAG_HORIZONTAL;
else if (PANEL_DRAG_HORIZONTAL < -75) imgImageTranslate.OffsetX = baseLeft + PANEL_DRAG_HORIZONTAL;
else imgImageTranslate.OffsetX = baseLeft;
}
}
}
private void GestureListener_DragStarted(object sender, DragStartedGestureEventArgs e)
{
PANEL_DRAG_HORIZONTAL = 0;
}
What about using a ScrollViewer with horizontal orientation? Of course, you will have to manually detect user actions and implement the proper response (with a couple of properly set Storyboards).
Even a better approach would be writing your own custom control that will view images. A good place to start is this - a CoverFlow control in Silverlight. Once you get the idea how you can bind your image collection to a custom control, all you need is handle user gestures on the currently selected item.