동동이의 블러그

private async void GetFile()

       {

           Uri source = new Uri(imgUrl);

           StorageFile destinationFile;

           try

           {

               destinationFile = await ApplicationData.Current.LocalFolder.CreateFileAsync(

                   "downloadimage.jpg", CreationCollisionOption.GenerateUniqueName);

           }

           catch (FileNotFoundException ex)

           {

               return;

           }

           BackgroundDownloader downloader = new BackgroundDownloader();

           DownloadOperation download = downloader.CreateDownload(source, destinationFile);

           await download.StartAsync();

           //ResponseInformation response = download.GetResponseInformation();

           var stream = await download.ResultFile.OpenReadAsync();

           BitmapDecoder decoder = await BitmapDecoder.CreateAsync(stream);

           InMemoryRandomAccessStream ras = new InMemoryRandomAccessStream();

           BitmapEncoder enc = await BitmapEncoder.CreateForTranscodingAsync(ras, decoder);

           BitmapBounds bounds = new BitmapBounds();

           bounds.Height = 274;

           bounds.Width = 382;

           bounds.Y = 0;

           bounds.X = 0;

           enc.BitmapTransform.Bounds = bounds;

           await enc.FlushAsync();

           BitmapImage bImg = new BitmapImage();

           bImg.SetSource(ras);

           xImage.Source = bImg;

           //2

           InMemoryRandomAccessStream ras2 = new InMemoryRandomAccessStream();

           BitmapEncoder enc2 = await BitmapEncoder.CreateForTranscodingAsync(ras2, decoder);

           BitmapBounds bounds2 = new BitmapBounds();

           bounds2.Height = 274;

           bounds2.Width = 382;

           bounds2.Y = 274;

           bounds2.X = 0;

           enc2.BitmapTransform.Bounds = bounds2;

           await enc2.FlushAsync();

           BitmapImage bImg2 = new BitmapImage();

           bImg2.SetSource(ras2);

           xImage2.Source = bImg2;

           var filed = await ApplicationData.Current.LocalFolder.GetFilesAsync();

           foreach (var item in filed)

           {

               //그냥 모두 삭제 삭제 안된 파일이 있을경우 파일이 커지는경우를 방지

               await item.DeleteAsync();

           }

       }

testText.Text = "Testing 123" + Environment.NewLine + "Testing ABC";

StringBuilder builder = new StringBuilder();

builder.Append(Environment.NewLine);

builder.Append("Test Text");

builder.Append(Environment.NewLine);

builder.Append("Test 2 Text");

testText.Text += builder.ToString();

void detectScreenType()

 {

     double dpi = DisplayProperties.LogicalDpi;

     var bounds = Window.Current.Bounds;

     double h;

     switch (ApplicationView.Value)

     {

         case ApplicationViewState.Filled:

             h = bounds.Height;

             break;

         case ApplicationViewState.FullScreenLandscape:

             h = bounds.Height;

             break;

         case ApplicationViewState.Snapped:

             h = bounds.Height;

             break;

         case ApplicationViewState.FullScreenPortrait:

             h = bounds.Width;

             break;

         default:

             return;

     }

     double inches = h / dpi ;

     string screenType = "Slate";

     if (inches < 10)

     {

         screenType = "Slate";

     } else if (inches < 14) {

         screenType = "WorkHorsePC";

     }

     else 

     {

         screenType = "FamilyHub";

     }

     ApplicationDataContainer localSettings = Windows.Storage.ApplicationData.Current.LocalSettings;

     localSettings.Values["screenType"] = screenType;

 }