[英]C# WP8.1:Convert image from gallery to base64
I'm having a little trouble developing my app. 我在开发应用程序时遇到了一些麻烦。 What I'm trying to do now is that let the user pick their picture from gallery(picture album) and display it.
我现在想做的是让用户从画廊(相册)中挑选图片并显示出来。 Furthermore, I want to convert that picture taken to Base64 string.
此外,我想将拍摄的照片转换为Base64字符串。 Right now I've successfully pull and display picture from gallery, is there anyway I can convert that picture to base64 string.
现在,我已经成功地从图库中提取并显示图片了,无论如何我都可以将图片转换为base64字符串。
Here's the code how I grab and display 这是我抓取并显示的代码
private void picprofile_Tapped(object sender, TappedRoutedEventArgs e)
{
CoreApplicationView view;
String ImagePath;
view = CoreApplication.GetCurrentView();
ImagePath = string.Empty;
FileOpenPicker filePicker = new FileOpenPicker();
filePicker.SuggestedStartLocation = PickerLocationId.PicturesLibrary;
filePicker.ViewMode = PickerViewMode.Thumbnail;
// Filter to include a sample subset of file types
filePicker.FileTypeFilter.Clear();
filePicker.FileTypeFilter.Add(".bmp");
filePicker.FileTypeFilter.Add(".png");
filePicker.FileTypeFilter.Add(".jpeg");
filePicker.FileTypeFilter.Add(".jpg");
filePicker.PickSingleFileAndContinue();
view.Activated += viewActivated;
}
private async void viewActivated(CoreApplicationView sender, IActivatedEventArgs args1)
{
CoreApplicationView view;
view = CoreApplication.GetCurrentView();
FileOpenPickerContinuationEventArgs args = args1 as FileOpenPickerContinuationEventArgs;
if (args != null)
{
if (args.Files.Count == 0) return;
view.Activated -= viewActivated;
StorageFile storageFile = args.Files[0];
var stream = await storageFile.OpenAsync(Windows.Storage.FileAccessMode.Read);
var bitmapImage = new Windows.UI.Xaml.Media.Imaging.BitmapImage();
await bitmapImage.SetSourceAsync(stream);
var decoder = await Windows.Graphics.Imaging.BitmapDecoder.CreateAsync(stream);
picprofile.ImageSource = bitmapImage;
}
}
See this code below help . 请参阅帮助下面的代码。 I hope there are multiple ways to do this .
我希望有多种方法可以做到这一点。 The link might help you
该链接可能对您有帮助
public async Task<string> ImageToBase64(StorageFile MyImageFile)
{
Stream ms = await MyImageFile.OpenStreamForReadAsync();
byte[] imageBytes = new byte[(int)ms.Length];
ms.Read(imageBytes, 0, (int)ms.Length);
return Convert.ToBase64String(imageBytes);
}
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