/// <summary>
/// Called when activity started with StartActivityForResult() returns.
/// </summary>
/// <param name="requestCode">request code used in StartActivityForResult()</param>
/// <param name="resultCode">result code</param>
/// <param name="data">intent data from file picking</param>
protected override void OnActivityResult(int requestCode, [GeneratedEnum] Result resultCode, Intent data)
{
base.OnActivityResult(requestCode, resultCode, data);
if (resultCode == Result.Canceled)
{
// Notify user file picking was cancelled.
OnFilePickCancelled();
this.Finish();
}
else
{
try
{
if (data?.Data == null)
{
throw new Exception("File picking returned no valid data");
}
System.Diagnostics.Debug.Write(data.Data);
var uri = data.Data;
if (Build.VERSION.SdkInt >= BuildVersionCodes.Kitkat)
{
context.ContentResolver.TakePersistableUriPermission(
uri,
ActivityFlags.GrantReadUriPermission);
}
var filePath = IOUtil.GetPath(this.context, uri);
if (string.IsNullOrEmpty(filePath))
{
filePath = IOUtil.IsMediaStore(uri.Scheme) ? uri.ToString() : uri.Path;
}
var fileName = this.GetFileName(this.context, uri);
OnFilePicked(new FilePickerEventArgs(fileName, filePath));
}
catch (Exception readEx)
{
System.Diagnostics.Debug.Write(readEx);
// Notify user file picking failed.
FilePickCancelled?.Invoke(
this,
new FilePickerCancelledEventArgs
{
Exception = readEx
});
}
finally
{
this.Finish();
}
}
}
private static void OnFilePickCancelled()
{
try
{
FilePickCancelled?.Invoke(null, null);
}
catch (Exception)
{
}
}
protected override void OnActivityResult(int requestCode, [GeneratedEnum] Result resultCode, Intent data)
{
base.OnActivityResult(requestCode, resultCode, data);
if (resultCode == Result.Canceled)
{
// Notify user file picking was cancelled.
OnFilePickCancelled();
Finish();
}
else
{
System.Diagnostics.Debug.Write(data.Data);
try {
var _uri = data.Data;
var filePath = IOUtil.getPath(context, _uri);
if (string.IsNullOrEmpty(filePath))
{
filePath = IOUtil.isMediaStore(_uri.Scheme) ? _uri.ToString() : _uri.Path;
}
byte[] file;
if (IOUtil.isMediaStore(_uri.Scheme))
{
file = IOUtil.readFile(context, _uri);
}
else
{
file = IOUtil.readFile(filePath);
}
var fileName = GetFileName(context, _uri);
OnFilePicked(new FilePickerEventArgs(file, fileName, filePath));
} catch (Exception readEx) {
System.Diagnostics.Debug.Write(readEx);
// Notify user file picking failed.
FilePickCancelled?.Invoke(
this,
new FilePickerCancelledEventArgs
{
Exception = readEx
});
} finally {
Finish();
}
}
}
/// <summary>
/// Called when activity started with StartActivityForResult() returns.
/// </summary>
/// <param name="requestCode">request code used in StartActivityForResult()</param>
/// <param name="resultCode">result code</param>
/// <param name="data">intent data from file picking</param>
protected override void OnActivityResult(int requestCode, [GeneratedEnum] Result resultCode, Intent data)
{
base.OnActivityResult(requestCode, resultCode, data);
if (resultCode == Result.Canceled)
{
// Notify user file picking was cancelled.
OnFilePickCancelled();
this.Finish();
}
else
{
try
{
if (data?.Data == null)
{
throw new Exception("File picking returned no valid data");
}
System.Diagnostics.Debug.Write(data.Data);
var uri = data.Data;
OnFilePicked(uri);
}
catch (Exception readEx)
{
System.Diagnostics.Debug.Write(readEx);
// Notify user file picking failed.
FilePickCancelled?.Invoke(
this,
new FilePickerCancelledEventArgs
{
Exception = readEx
});
}
finally
{
this.Finish();
}
}
}
private static void OnFilePickCancelled()
{
FilePickCancelled?.Invoke(null, null);
}
public override void OnBackPressed()
{
base.OnBackPressed();
FilePickCancelled?.Invoke(null, null);
}
/// <summary>
/// Called when activity started with StartActivityForResult() returns.
/// </summary>
/// <param name="requestCode">request code used in StartActivityForResult()</param>
/// <param name="resultCode">result code</param>
/// <param name="data">intent data from file picking</param>
protected override void OnActivityResult(int requestCode, [GeneratedEnum] Result resultCode, Intent data)
{
base.OnActivityResult(requestCode, resultCode, data);
if (resultCode == Result.Canceled)
{
// Notify user file picking was cancelled.
OnFilePickCancelled();
this.Finish();
}
else
{
try
{
if (data?.Data == null)
{
throw new Exception("File picking returned no valid data");
}
System.Diagnostics.Debug.Write(data.Data);
var uri = data.Data;
if (Build.VERSION.SdkInt >= BuildVersionCodes.Kitkat)
{
context.ContentResolver.TakePersistableUriPermission(
uri,
ActivityFlags.GrantReadUriPermission);
}
// The scoped storage feature was introduced on Android Q and it prevents direct file access on external storage.
// Thus, using the IOUtil.GetPath should be avoided because a System.UnauthorizedAccessException
// will be thrown when calling File.OpenRead() on the local path.
// For more information, see: https://developer.android.com/training/data-storage/#scoped-storage
var filePath = (int)Build.VERSION.SdkInt >= 29
? uri.ToString()
: IOUtil.GetPath(this.context, uri);
if (string.IsNullOrEmpty(filePath))
{
filePath = IOUtil.IsMediaStore(uri.Scheme) ? uri.ToString() : uri.Path;
}
var fileName = this.GetFileName(this.context, uri);
var folderPath = this.GetFolderPath(this.context, uri);
OnFilePicked(new FilePickerEventArgs(fileName, filePath));
}
catch (Exception readEx)
{
System.Diagnostics.Debug.Write(readEx);
// Notify user file picking failed.
FilePickCancelled?.Invoke(
this,
new FilePickerCancelledEventArgs
{
Exception = readEx
});
}
finally
{
this.Finish();
}
}
}
