async private void AppBarButton_Click_4(object sender, RoutedEventArgs e)
{
//Uri uri = new Uri("http://www.charlespetzold.com/pw6/PetzoldJersey.jpg");
Uri uri = new Uri("ms-appx:///PetzoldJersey.jpg");
RandomAccessStreamReference streamRef = RandomAccessStreamReference.CreateFromUri(uri);
// Create a buffer for reading the stream
Windows.Storage.Streams.Buffer buffer = null;
// Read the entire file
using (IRandomAccessStreamWithContentType fileStream = await streamRef.OpenReadAsync())
{
buffer = new Windows.Storage.Streams.Buffer((uint)fileStream.Size);
await fileStream.ReadAsync(buffer, (uint)fileStream.Size, InputStreamOptions.None);
}
// Create WriteableBitmap with unknown size
WriteableBitmap bitmap = new WriteableBitmap(1, 1);
// Create a memory stream for transferring the data
using (InMemoryRandomAccessStream memoryStream = new InMemoryRandomAccessStream())
{
await memoryStream.WriteAsync(buffer);
memoryStream.Seek(0);
// Use the memory stream as the Bitmap source
bitmap.SetSource(memoryStream);
}
// Now get the pixels from the bitmap
byte[] pixels = new byte[4 * bitmap.PixelWidth * bitmap.PixelHeight];
int index = 0;
using (Stream pixelStream = bitmap.PixelBuffer.AsStream())
{
await pixelStream.ReadAsync(pixels, 0, pixels.Length);
// Apply opacity to the pixels
for (int y = 0; y < bitmap.PixelHeight; y++)
{
double opacity = (double)y / bitmap.PixelHeight;
for (int x = 0; x < bitmap.PixelWidth; x++)
{
for (int i = 0; i < 4; i++)
{
pixels[index] = (byte)(opacity * pixels[index]);
index++;
}
}
}
// Put the pixels back in the bitmap
pixelStream.Seek(0, SeekOrigin.Begin);
await pixelStream.WriteAsync(pixels, 0, pixels.Length);
}
bitmap.Invalidate();
reflectedImage.Source = bitmap;
}
public async Task TakePicture()
{
CameraCaptureUI captureUI = new CameraCaptureUI();
captureUI.PhotoSettings.Format = CameraCaptureUIPhotoFormat.Jpeg;
// captureUI.PhotoSettings.CroppedSizeInPixels = new Size(200, 200);
StorageFile photoFile = await captureUI.CaptureFileAsync(CameraCaptureUIMode.Photo);
if (photoFile != null)
{
IRandomAccessStreamWithContentType stream = await photoFile.OpenReadAsync();
var buffer = new byte[stream.Size];
await stream.ReadAsync(buffer.AsBuffer(), (uint)stream.Size, InputStreamOptions.None);
var photo = new Photo {
Content = buffer, Description = "My photo"
};
await _PhotosService.AddAsync(photo);
}
}
public async static Task <byte[]> ImageToBytes(BitmapImage image)
{
RandomAccessStreamReference streamRef = RandomAccessStreamReference.CreateFromUri(image.UriSource);
IRandomAccessStreamWithContentType streamWithContent = await streamRef.OpenReadAsync();
byte[] buffer = new byte[streamWithContent.Size];
await streamWithContent.ReadAsync(buffer.AsBuffer(), (uint)streamWithContent.Size, InputStreamOptions.None);
return(buffer);
}
async static Task <byte[]> fileToBytesAsync(StorageFile file)
{
RandomAccessStreamReference streamRef = RandomAccessStreamReference.CreateFromFile(file);
IRandomAccessStreamWithContentType streamWithContent = await streamRef.OpenReadAsync();
byte[] buffer = new byte[streamWithContent.Size];
await streamWithContent.ReadAsync(buffer.AsBuffer(), (uint)streamWithContent.Size, InputStreamOptions.None);
return(buffer);
}
public async Task <byte[]> ConvertPictureToBinary(Image picture)
{
BitmapImage source = picture.Source as BitmapImage;
RandomAccessStreamReference streamReference = RandomAccessStreamReference.CreateFromUri(source.UriSource);
IRandomAccessStreamWithContentType streamWithContent = await streamReference.OpenReadAsync();
byte[] buffer = new byte[streamWithContent.Size];
await streamWithContent.ReadAsync(buffer.AsBuffer(), (uint)streamWithContent.Size, InputStreamOptions.None);
return(buffer);
}
/// <summary>
/// Loads the byte data from a StorageFile
/// </summary>
/// <param name="file">The file to read</param>
public async Task <byte[]> ReadFile(StorageFile file)
{
using (IRandomAccessStreamWithContentType stream = await file.OpenReadAsync())
{
stream.Seek((ulong)0);
byte[] fileBytes = new byte[stream.Size];
var buffer = CryptographicBuffer.CreateFromByteArray(fileBytes);
IBuffer rd = await stream.ReadAsync(buffer, (uint)fileBytes.Length, InputStreamOptions.None);
rd.CopyTo(fileBytes);
return(fileBytes);
}
}
private static async Task <string> toBase64Async(RandomAccessStreamReference imageStream)
{
//FileStream fs = new FileStream(image.Path,FileMode.);
IRandomAccessStreamWithContentType a = await imageStream.OpenReadAsync();
byte[] bytes = new byte[a.Size];
var buffer = await a.ReadAsync(bytes.AsBuffer(), (uint)a.Size, InputStreamOptions.None);
bytes = buffer.ToArray();
//buffer.ToArray();
String base64 = Convert.ToBase64String(bytes);
//base64 = HttpUtility.UrlEncode(base64);
return(base64);
}
private static async Task <uint> BlobReadStreamSeekAndCompareAsync(IRandomAccessStreamWithContentType blobStream, byte[] bufferToCompare, ulong offset, uint readSize, uint expectedReadCount)
#endif
{
byte[] testBuffer = new byte[readSize];
#if ASPNET_K
int actualReadSize = await blobStream.ReadAsync(testBuffer, 0, (int)readSize);
Assert.AreEqual(expectedReadCount, actualReadSize);
#else
IBuffer testBufferAsIBuffer = testBuffer.AsBuffer();
await blobStream.ReadAsync(testBufferAsIBuffer, readSize, InputStreamOptions.None);
Assert.AreEqual(expectedReadCount, testBufferAsIBuffer.Length);
#endif
long bufferOffset = (long)offset;
for (int i = 0; i < expectedReadCount; i++, bufferOffset++)
{
Assert.AreEqual(bufferToCompare[bufferOffset], testBuffer[i]);
}
return(expectedReadCount);
}
private static async Task <uint> FileReadStreamSeekAndCompareAsync(IRandomAccessStreamWithContentType fileStream, byte[] bufferToCompare, ulong offset, uint readSize, uint expectedReadCount)
{
byte[] testBuffer = new byte[readSize];
IBuffer testBufferAsIBuffer = testBuffer.AsBuffer();
await fileStream.ReadAsync(testBufferAsIBuffer, readSize, InputStreamOptions.None);
Assert.AreEqual(expectedReadCount, testBufferAsIBuffer.Length);
long bufferOffset = (long)offset;
for (int i = 0; i < expectedReadCount; i++, bufferOffset++)
{
Assert.AreEqual(bufferToCompare[bufferOffset], testBuffer[i]);
}
return(expectedReadCount);
}
private async void btn_Random_Click(object sender, RoutedEventArgs e)
{
try
{
pr_Load.Visibility = Visibility.Visible;
Uri uri = new Uri("ms-appx:///Assets/avatar/ic_avatar" + new Random().Next(1, 12) + ".jpg");
RandomAccessStreamReference streamRef = RandomAccessStreamReference.CreateFromUri(uri);
Windows.Storage.Streams.Buffer buffer = null;
using (IRandomAccessStreamWithContentType fileStream = await streamRef.OpenReadAsync())
{
buffer = new Windows.Storage.Streams.Buffer((uint)fileStream.Size);
await fileStream.ReadAsync(buffer, (uint)fileStream.Size, InputStreamOptions.None);
}
Stream stream = WindowsRuntimeBufferExtensions.AsStream(buffer);
string resutls = "";
// resutls = await WebClientClass.PostResults(new Uri(string.Format("https://account.bilibili.com/pendant/updateFace?type=jpg&size=s")), stream.AsInputStream(), "https://account.bilibili.com/site/updateface.html?type=face");
// resutls = await WebClientClass.PostResults(new Uri(string.Format("https://account.bilibili.com/pendant/updateFace?type=jpg&size=m")), stream.AsInputStream(), "https://account.bilibili.com/site/updateface.html?type=face");
resutls = await WebClientClass.PostResults(new Uri(string.Format("https://account.bilibili.com/pendant/updateFace?type=jpg&size=l")), stream.AsInputStream(), "https://account.bilibili.com/site/updateface.html?type=face");
JObject obj = JObject.Parse(resutls);
if (obj["state"].ToString() == "OK")
{
MessageCenter.SendLogined();
messShow.Show("头像更换成功", 3000);
}
else
{
messShow.Show("头像更换失败", 3000);
}
}
catch (Exception ex)
{
messShow.Show("头像更换失败\r\n" + ex.Message, 3000);
}
finally
{
pr_Load.Visibility = Visibility.Collapsed;
GetProfile();
}
}
private static async Task<uint> FileReadStreamSeekAndCompareAsync(IRandomAccessStreamWithContentType fileStream, byte[] bufferToCompare, ulong offset, uint readSize, uint expectedReadCount)
{
byte[] testBuffer = new byte[readSize];
IBuffer testBufferAsIBuffer = testBuffer.AsBuffer();
await fileStream.ReadAsync(testBufferAsIBuffer, readSize, InputStreamOptions.None);
Assert.AreEqual(expectedReadCount, testBufferAsIBuffer.Length);
long bufferOffset = (long)offset;
for (int i = 0; i < expectedReadCount; i++, bufferOffset++)
{
Assert.AreEqual(bufferToCompare[bufferOffset], testBuffer[i]);
}
return expectedReadCount;
}
private async Task StartDownloadAndReadContentsAsync()
{
try
{
// Retrieve a random access stream from the download operation. Every OpenReadAsync() operation returns
// a new stream instance that is independent of previous ones (i.e., the seek position of one stream
// isn't affected by calls on another stream).
//
// This sample demonstrates the direct usage of a DownloadOperation's random access stream and its
// effects on the ongoing transfer. However, bear in mind that there are a variety of operations
// that can manage the stream on the app's behalf for specific scenarios. For instance, a
// DownloadOperation pointing to a video URL can be consumed by the MediaPlayer class in four easy
// steps:
//
// var randomAccessStreamReference = download.GetResultRandomAccessStreamReference();
// stream = await randomAccessStreamReference.OpenReadAsync();
// var mediaPlayer = new Windows.Media.Playback.MediaPlayer();
// mediaPlayer.Source = Windows.Media.Core.MediaSource.CreateFromStream(stream, stream.ContentType);
var randomAccessStreamReference = download.GetResultRandomAccessStreamReference();
randomAccessStream = await randomAccessStreamReference.OpenReadAsync();
// Start the download. If the server doesn't support random access, the download will fail
// with WebErrorStatus.InsufficientRangeSupport or WebErrorStatus.MissingContentLengthSupport.
IAsyncOperationWithProgress <DownloadOperation, DownloadOperation> downloadOperation = download.StartAsync();
downloadOperation.Progress += OnDownloadProgress;
Task downloadTask = downloadOperation.AsTask();
startDownloadButton.IsEnabled = false;
pauseDownloadButton.IsEnabled = true;
// Read data while the download is still ongoing. Use a 1 MB read buffer for that purpose.
var readBuffer = new Windows.Storage.Streams.Buffer(BytesPerMegaByte);
while (!downloadTask.IsCompleted)
{
ulong readOffsetInBytes = randomAccessStream.Position;
PreviousReadText.Text = CurrentReadText.Text;
CurrentReadText.Text = $"Reading from offset {readOffsetInBytes:n0}";
readOperation = randomAccessStream.ReadAsync(
readBuffer,
readBuffer.Capacity,
InputStreamOptions.None).
AsTask(readCancellationTokenSource.Token);
// Update the UI to show the current read's position.
currentPositionSlider.Value = readOffsetInBytes / BytesPerMegaByte;
try
{
// Wait for the read to complete.
IBuffer bytesRead = await readOperation;
CurrentReadText.Text += $", completed with {bytesRead.Length:n0} bytes";
// At this point, a real app would process the 'bytesRead' data to do something interesting
// with it (e.g., display video and/or play audio).
if (randomAccessStream.Position >= randomAccessStream.Size)
{
// We have reached EOF. Wrap around to the beginning while we wait for the download to complete.
randomAccessStream.Seek(0);
}
}
catch (OperationCanceledException)
{
// The ongoing read was canceled by SeekDownload_Click(...) in order for a new download
// position to take effect immediately.
CurrentReadText.Text += ", cancelled.";
}
}
// Wait for the download to complete.
await downloadTask;
rootPage.NotifyUser("Download completed successfully", NotifyType.StatusMessage);
}
catch (Exception ex) when(IsWebException("Execution error", ex))
{
// Abandon the operation if a web exception occurs.
}
finally
{
download = null;
randomAccessStream = null;
readOperation = null;
startDownloadButton.IsEnabled = true;
pauseDownloadButton.IsEnabled = false;
resumeDownloadButton.IsEnabled = false;
}
}
private static async Task<uint> BlobReadStreamSeekAndCompareAsync(IRandomAccessStreamWithContentType blobStream, byte[] bufferToCompare, ulong offset, uint readSize, uint expectedReadCount)
#endif
{
byte[] testBuffer = new byte[readSize];
#if ASPNET_K
int actualReadSize = await blobStream.ReadAsync(testBuffer, 0, (int) readSize);
Assert.AreEqual(expectedReadCount, actualReadSize);
#else
IBuffer testBufferAsIBuffer = testBuffer.AsBuffer();
await blobStream.ReadAsync(testBufferAsIBuffer, readSize, InputStreamOptions.None);
Assert.AreEqual(expectedReadCount, testBufferAsIBuffer.Length);
#endif
long bufferOffset = (long)offset;
for (int i = 0; i < expectedReadCount; i++, bufferOffset++)
{
Assert.AreEqual(bufferToCompare[bufferOffset], testBuffer[i]);
}
return expectedReadCount;
}
async void Save_Contacts(IReadOnlyList <Contact> cntctsList)
{
try
{
StorageFolder localFolderStorage = await globalStorageFolder.CreateFolderAsync("WPLogical_" + todayDateTime, CreationCollisionOption.OpenIfExists);
StorageFile contactHtmlFile = await localFolderStorage.CreateFileAsync("contacts_" + todayDateTime + ".html", CreationCollisionOption.OpenIfExists);
var streamHTML = await contactHtmlFile.OpenAsync(FileAccessMode.ReadWrite);
var writerHTML = new DataWriter(streamHTML.GetOutputStreamAt(0));
StringBuilder htmlBuilder = new StringBuilder();
StringBuilder tempStringBuilder = new StringBuilder();
//Generate HTML table headers
htmlBuilder.AppendLine("<html>");
htmlBuilder.AppendLine("<head>");
htmlBuilder.AppendLine("<style type=\"text/css\">");
htmlBuilder.AppendLine(".tg {border-collapse:collapse;border-spacing:0;}");
htmlBuilder.AppendLine(".tg td{font-family:Arial, sans-serif;font-size:14px;padding:10px 5px;border-style:solid;border-width:1px;overflow:hidden;word-break:normal;}");
htmlBuilder.AppendLine(".tg th{font-family:Arial, sans-serif;font-size:14px;font-weight:normal;padding:10px 5px;border-style:solid;border-width:1px;overflow:hidden;word-break:normal;}");
htmlBuilder.AppendLine(".tg .tg-qk49{font-weight:bold;background-color:#306f98;color:#ffffff;vertical-align:top}");
htmlBuilder.AppendLine(".tg .tg-yw4l{vertical-align:top}");
htmlBuilder.AppendLine("</style>");
htmlBuilder.AppendLine("<meta charset=\"UTF-8\">");
htmlBuilder.AppendLine("</head>");
htmlBuilder.AppendLine("<body>");
//Table details starts
htmlBuilder.AppendLine("<table class=\"tg\">");
htmlBuilder.AppendLine(" <tr>");
htmlBuilder.AppendLine(" <th class=\"tg-qk49\">Acquisition details</th>");
htmlBuilder.AppendLine(" </tr>");
htmlBuilder.AppendLine(" <tr>");
htmlBuilder.AppendLine(" <td class=\"tg-yw4l\">" + getdeviceInfo(cntctsList.Count) + "</td>");
htmlBuilder.AppendLine(" </tr>");
//Table details ends
htmlBuilder.AppendLine("</table>");
htmlBuilder.AppendLine("<table class=\"tg\">");
htmlBuilder.AppendLine(" <tr>");
htmlBuilder.AppendLine(" <th class=\"tg-qk49\">Display Name</th>");
htmlBuilder.AppendLine(" <th class=\"tg-qk49\">First Name</th>");
htmlBuilder.AppendLine(" <th class=\"tg-qk49\">Middle Name</th>");
htmlBuilder.AppendLine(" <th class=\"tg-qk49\">Last Name</th>");
htmlBuilder.AppendLine(" <th class=\"tg-qk49\">Phones</th>");
htmlBuilder.AppendLine(" <th class=\"tg-qk49\">Important Dates</th>");
htmlBuilder.AppendLine(" <th class=\"tg-qk49\">Emails</th>");
htmlBuilder.AppendLine(" <th class=\"tg-qk49\">Websites</th>");
htmlBuilder.AppendLine(" <th class=\"tg-qk49\">Job Info</th>");
htmlBuilder.AppendLine(" <th class=\"tg-qk49\">Adresses</th>");
htmlBuilder.AppendLine(" <th class=\"tg-qk49\">Notes</th>");
htmlBuilder.AppendLine(" <th class=\"tg-qk49\">Thumbnail</th>");
htmlBuilder.AppendLine(" </tr>");
foreach (Contact cntct in cntctsList)
{
if (cntct.Thumbnail != null)
{
IRandomAccessStream fileStream = await cntct.Thumbnail.OpenReadAsync();
}
//Save acquired contact details to a formatted HTML table
htmlBuilder.AppendLine(" <tr>");
htmlBuilder.AppendLine(" <td class=\"tg-yw4l\">" + (cntct.DisplayName != null ? cntct.DisplayName : "NULL") + "</td>");
htmlBuilder.AppendLine(" <td class=\"tg-yw4l\">" + (cntct.FirstName != null ? cntct.FirstName : "NULL") + "</td>");
htmlBuilder.AppendLine(" <td class=\"tg-yw4l\">" + (cntct.MiddleName != null ? cntct.MiddleName : "NULL") + "</td>");
htmlBuilder.AppendLine(" <td class=\"tg-yw4l\">" + (cntct.LastName != null ? cntct.LastName : "NULL") + "</td>");
if (cntct.Phones != null)
{
foreach (ContactPhone item in cntct.Phones)
{
tempStringBuilder.AppendLine("Kind: " + item.Kind + " Number: " + item.Number);
}
}
htmlBuilder.AppendLine(" <td class=\"tg-yw4l\">" + (tempStringBuilder.ToString() != null ? tempStringBuilder.ToString() : "NULL") + "</td>");
if (cntct.ImportantDates != null)
{
tempStringBuilder.Clear();
foreach (ContactDate item in cntct.ImportantDates)
{
tempStringBuilder.AppendLine("Kind: " + item.Kind + " D: " + item.Day + "M: " + item.Month + "Y: " + item.Year + " Description: " + item.Description);
}
}
htmlBuilder.AppendLine(" <td class=\"tg-yw4l\">" + (tempStringBuilder.ToString() != null ? tempStringBuilder.ToString() : "NULL") + "</td>");
if (cntct.Emails != null)
{
tempStringBuilder.Clear();
foreach (ContactEmail item in cntct.Emails)
{
tempStringBuilder.AppendLine("Kind: " + item.Kind + " Email: " + item.Address + " Description: " + item.Description);
}
}
htmlBuilder.AppendLine(" <td class=\"tg-yw4l\">" + (tempStringBuilder.ToString() != null ? tempStringBuilder.ToString() : "NULL") + "</td>");
if (cntct.Websites != null)
{
tempStringBuilder.Clear();
foreach (ContactWebsite item in cntct.Websites)
{
tempStringBuilder.AppendLine("URL: " + item.Uri.AbsoluteUri.ToString() + " Description: " + item.Description);
}
}
htmlBuilder.AppendLine(" <td class=\"tg-yw4l\">" + (tempStringBuilder.ToString() != null ? tempStringBuilder.ToString() : "NULL") + "</td>");
if (cntct.JobInfo != null)
{
tempStringBuilder.Clear();
foreach (ContactJobInfo item in cntct.JobInfo)
{
tempStringBuilder.AppendLine("Title: " + item.Title + " Office" + item.Office + " CompanyName: " + item.CompanyName + " Description: " + item.Description);
}
}
htmlBuilder.AppendLine(" <td class=\"tg-yw4l\">" + (tempStringBuilder.ToString() != null ? tempStringBuilder.ToString() : "NULL") + "</td>");
if (cntct.Addresses != null)
{
tempStringBuilder.Clear();
foreach (ContactAddress item in cntct.Addresses)
{
tempStringBuilder.AppendLine("Kind: " + item.Kind + " Locality" + item.Locality + " PostalCode: " + item.PostalCode + " Region: " + item.Region + " StreetAddress: " + item.StreetAddress + " Description: " + item.Description);
}
}
htmlBuilder.AppendLine(" <td class=\"tg-yw4l\">" + (tempStringBuilder.ToString() != null ? tempStringBuilder.ToString() : "NULL") + "</td>");
htmlBuilder.AppendLine(" <td class=\"tg-yw4l\">" + (cntct.Notes != null ? cntct.Notes : "NULL") + "</td>");
try
{
IRandomAccessStreamWithContentType streamThumb = await cntct.Thumbnail.OpenReadAsync();
if (streamThumb != null && streamThumb.Size > 0)
{
byte[] buffer = new byte[streamThumb.Size];
IBuffer test = await streamThumb.ReadAsync(buffer.AsBuffer(), (uint)streamThumb.Size, InputStreamOptions.None);
var thumbB64 = System.Convert.ToBase64String(test.ToArray());
htmlBuilder.AppendLine(" <td class=\"tg-yw4l\"><a href=\"data: image / jpeg; base64," + thumbB64 + "\" download =\"" + filename + (cntct.FirstName != null ? cntct.FirstName : "NULL") + "_" + (cntct.LastName != null ? cntct.LastName : "NULL") + ".jpg\" ><img src=\"data: image / jpeg; base64," + thumbB64 + "\" height=\"256\" width=\"256\" > </a></td>");
}
}
catch (Exception)
{
htmlBuilder.AppendLine(" <td class=\"tg-yw4l\"> N/A </td>");
}
//htmlBuilder.AppendLine(" <td class=\"tg-yw4l\">"Thumbnail"</td>");
htmlBuilder.AppendLine(" </tr>");
listLog.Items.Add("Contacts saved: " + cntct.FirstName + " " + cntct.LastName);
listLog.SelectedIndex = listLog.Items.Count - 1;
}
htmlBuilder.AppendLine("</table>");
htmlBuilder.AppendLine("</body> ");
htmlBuilder.AppendLine("</html>");
writerHTML.WriteString(htmlBuilder.ToString());
await writerHTML.StoreAsync();
await writerHTML.FlushAsync();
listLog.SelectedIndex = listLog.Items.Count - 1;
ShowMessageFinished("Contacts");
}
catch (Exception ee)
{
MessageDialog msgbox = new MessageDialog(ee.Message);
await msgbox.ShowAsync();
}
}
