http://stormzhang.com/android/2014/07/24/android-save-image-to-gallery/
public static void saveImageToGallery(Context context, Bitmap bmp) { // 首先保存图片 File appDir = new File(Environment.getExternalStorageDirectory(), "Boohee"); if (!appDir.exists()) { appDir.mkdir(); } String fileName = System.currentTimeMillis() + ".jpg"; File file = new File(appDir, fileName); try { FileOutputStream fos = new FileOutputStream(file); bmp.compress(Bitmap.CompressFormat.JPEG, 100, fos); fos.flush(); fos.close(); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } // 其次把文件插入到系统图库 try { MediaStore.Images.Media.insertImage(context.getContentResolver(), file.getAbsolutePath(), fileName, null); } catch (FileNotFoundException e) { e.printStackTrace(); } // 最后通知图库更新 // context.sendBroadcast(new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, Uri.parse("file://" + path))); context.sendBroadcast(new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, Uri.parse("file://" + file.getAbsolutePath()))); }