- 1 year ago
How to Convert a Storage file in an array of byte in uwp
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To convert a StorageFile
to an array of bytes in a Universal Windows Platform (UWP) app, you can use the ReadBufferAsync
method provided by the Windows.Storage.Streams
namespace. Here's an example:
csharpusing Windows.Storage;
using Windows.Storage.Streams;
public async Task<byte[]> ConvertStorageFileToByteArray(StorageFile storageFile)
{
// Open a stream for the StorageFile
IRandomAccessStream stream = await storageFile.OpenReadAsync();
// Create a DataReader
DataReader reader = new DataReader(stream);
// Load the data from the stream
await reader.LoadAsync((uint)stream.Size);
// Read the bytes from the stream into a byte array
byte[] byteArray = new byte[stream.Size];
reader.ReadBytes(byteArray);
// Close the DataReader and stream
reader.Dispose();
stream.Dispose();
return byteArray;
}
In this example:
StorageFile
is passed as a parameter to theConvertStorageFileToByteArray
method.- The
OpenReadAsync
method is used to open a stream for theStorageFile
. - A
DataReader
is created to read data from the stream. - The
LoadAsync
method is called to load the data from the stream. - A byte array is created with the same size as the stream.
- The
ReadBytes
method is used to read the bytes from the stream into the byte array. - Finally, the
DataReader
and stream are disposed of to release resources.
You can then use this method to convert a StorageFile
to a byte array and perform further processing or manipulation with the byte data.
Remember to handle any exceptions that may occur during the file reading process and ensure that you have appropriate file access permissions in your UWP app.