/** * Exports the bitmap of the current chart to the device's storage * * @return * */ public async Task exportImage() { String APP_PATH_SD_CARD = "/xuni/samples/FlexChart/"; var image = await mChart.GetImage(); string fullPath = Android.OS.Environment.ExternalStorageDirectory.AbsolutePath + APP_PATH_SD_CARD; try { Java.IO.File dir = new Java.IO.File(fullPath); if (!dir.Exists()) { dir.Mkdirs(); } // save image to a new file string name = fullPath + System.DateTime.Now.ToString("yyyyMMddHHmmssfff") + ".jpg"; System.IO.File.WriteAllBytes(name, image); // add index of the image to the gallery Intent mediaScanIntent = new Intent(Intent.ActionMediaScannerScanFile); Android.Net.Uri contentUri = Android.Net.Uri.FromFile(new Java.IO.File(name)); mediaScanIntent.SetData(contentUri); SendBroadcast(mediaScanIntent); Toast.MakeText(this, Resource.String.snapshotStored, ToastLength.Short).Show(); } catch (Exception e) { System.Diagnostics.Debug.WriteLine("exportImage failed: " + e.Message); } }