我是Windows手机编程的新手!我的问题是如何在Windows Phone 8.1中保存和检索图像到文件?我已经看到了一些链接,但所有这些链接都在windows phone 7中 . [http://www.geekchamp.com/tips/all-about-wp7-isolated-storage---read-and-save-images#][1]我不会这样,但这段代码只运行到windows phone 7
//在隔离存储中创建JPEG文件的文件名 . 字符串tempJPEG =“logo.jpg”;
// Create virtual store and file stream. Check for duplicate tempJPEG files.
using (IsolatedStorageFile myIsolatedStorage = IsolatedStorageFile.GetUserStoreForApplication())
{
if (myIsolatedStorage.FileExists(tempJPEG))
{
myIsolatedStorage.DeleteFile(tempJPEG);
}
IsolatedStorageFileStream fileStream = myIsolatedStorage.CreateFile(tempJPEG);
StreamResourceInfo sri = null;
Uri uri = new Uri(tempJPEG, UriKind.Relative);
sri = Application.GetResourceStream(uri);
BitmapImage bitmap = new BitmapImage();
bitmap.SetSource(sri.Stream);
WriteableBitmap wb = new WriteableBitmap(bitmap);
// Encode WriteableBitmap object to a JPEG stream.
Extensions.SaveJpeg(wb, fileStream, wb.PixelWidth, wb.PixelHeight, 0, 85);
//wb.SaveJpeg(fileStream, wb.PixelWidth, wb.PixelHeight, 0, 85);
fileStream.Close();
}
1 回答
这是我将UI元素保存到png的方法: