Ejemplo n.º 1
0
        private async Task DoBackup(Uri uri, string password)
        {
            var backup = new Backup(
                _authSource.GetAll(),
                _categorySource.GetAll(),
                _authSource.CategoryBindings,
                _customIconSource.GetAll()
                );

            var dataToWrite = backup.ToBytes(password);

            // This is the only way of reliably writing files using SAF on Xamarin.
            // A file output stream will usually create 0 byte files on virtual storage such as Google Drive
            var output     = ContentResolver.OpenOutputStream(uri, "rwt");
            var dataStream = new DataOutputStream(output);

            try
            {
                await dataStream.WriteAsync(dataToWrite);

                await dataStream.FlushAsync();
            }
            finally
            {
                dataStream.Close();
                output.Close();
            }
        }
Ejemplo n.º 2
0
        public static async Task WriteFile(Context context, Uri uri, byte[] data)
        {
            // Run backup on separate thread, file writing on the main thread fails when using Nextcloud
            await Task.Run(async delegate
            {
                // This is the only way of reliably writing binary files using SAF on Xamarin.
                // A file output stream will usually create 0 byte files on virtual storage such as Google Drive
                Stream output = null;
                DataOutputStream dataStream = null;

                try
                {
                    output     = context.ContentResolver.OpenOutputStream(uri);
                    dataStream = new DataOutputStream(output);

                    await dataStream.WriteAsync(data);
                    await dataStream.FlushAsync();
                }
                finally
                {
                    dataStream?.Close();
                    output?.Close();
                }
            });
        }