private async void LoadFromFile()
{
IsLoadingFile = true;
try
{
var status = await CrossPermissions.Current.CheckPermissionStatusAsync(Permission.Storage);
if (status != PermissionStatus.Granted)
{
if (await CrossPermissions.Current.ShouldShowRequestPermissionRationaleAsync(Permission.Storage))
{
await DisplayAlert("Need access storage", "It is nessecary for certificate loading.", "OK");
}
var results = await CrossPermissions.Current.RequestPermissionsAsync(Permission.Storage);
status = results[Permission.Storage];
}
if (status == PermissionStatus.Denied)
{
await DisplayAlert("Error", "Storage permission is not granted.", "OK");
IsLoadingFile = false;
return;
}
FileData fileData = await CrossFilePicker.Current.PickFile();
if (fileData == null)
{
IsLoadingFile = false;
return;
}
X509Certificate2 cert = X509Certificate2Utils.ImportFromPkcs12(fileData.DataArray, true);
app.AfterCertificateSelected(cert);
}
catch (Exception ex)
{
logger.LogException(this, ex);
await DisplayAlert("Error", "Certificate loading failed.", "OK");
IsLoadingFile = false;
}
}