protected override async void OnActivityResult(int requestCode, [GeneratedEnum] Result resultCode, Intent intent)
{
if (resultCode != Result.Ok)
{
return;
}
switch (requestCode)
{
case DeviceStorageCode:
var file = $@"{intent.GetStringExtra("path")}/{intent.GetStringExtra("filename")}";
_fileData = await File.ReadAllBytesAsync(file);
break;
case StorageAccessFrameworkCode:
var stream = ContentResolver.OpenInputStream(intent.Data);
var memoryStream = new MemoryStream();
await stream.CopyToAsync(memoryStream);
_fileData = memoryStream.ToArray();
break;
default: return;
}
if (_fileData.Length == 0)
{
Toast.MakeText(this, Resource.String.invalidFileError, ToastLength.Short).Show();
return;
}
// Open curly brace (file is not encrypted)
if (_fileData[0] == 0x7b)
{
await Restore();
return;
}
var transaction = SupportFragmentManager.BeginTransaction();
var old = SupportFragmentManager.FindFragmentByTag("password_dialog");
if (old != null)
{
transaction.Remove(old);
}
transaction.AddToBackStack(null);
_dialog = new BackupPasswordDialog(BackupPasswordDialog.Mode.Restore, OnDialogPositive, OnDialogNegative);
_dialog.Show(transaction, "password_dialog");
}
private void ShowPasswordDialog(int requestCode, Intent intent)
{
var transaction = SupportFragmentManager.BeginTransaction();
var old = SupportFragmentManager.FindFragmentByTag("password_dialog");
if (old != null)
{
transaction.Remove(old);
}
transaction.AddToBackStack(null);
_passwordDialog = new BackupPasswordDialog(BackupPasswordDialog.Mode.Backup, () =>
{
Backup(requestCode, intent);
}, null);
_passwordDialog.Show(transaction, "password_dialog");
}