兼容Android10 保存图片并更新图库

// 保存图片
public static Uri saveBitmap(Context context, Bitmap bitmap) throws IOException {
        File eFile = Environment.getExternalStorageDirectory();
        File mDirectory = new File(eFile.toString() + File.separator + context.getPackageName());
        if (!mDirectory.exists()) {
            mDirectory.mkdirs();
        }
        File imageFile = new File(mDirectory, "photo_" + System.currentTimeMillis() + ".jpg");
        FileOutputStream out;
        try {
            out = new FileOutputStream(imageFile);
            if (bitmap.compress(Bitmap.CompressFormat.PNG, 90, out)) {
                out.flush();
                out.close();
            }

            Uri uri = toUri(context,imageFile);
            updatePhotoAlbum(context,imageFile);//更新图库
            return uri;
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return null;
    }



/**
     * 兼容android 10
     * 更新图库
     * @param mContext
     * @param file
     */
    public static void updatePhotoAlbum(Context mContext,File file) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
            ContentValues values = new ContentValues();
            values.put(MediaStore.MediaColumns.DISPLAY_NAME, file.getName());
            values.put(MediaStore.MediaColumns.MIME_TYPE, getMimeType(file));
            values.put(MediaStore.MediaColumns.RELATIVE_PATH, Environment.DIRECTORY_DCIM);
            ContentResolver contentResolver = mContext.getContentResolver();
            Uri uri = contentResolver.insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values);
            if (uri == null) {
                return;
            }
            try {
                OutputStream out = contentResolver.openOutputStream(uri);
                FileInputStream fis = new FileInputStream(file);
                FileUtils.copy(fis, out);
                fis.close();
                out.close();
            } catch (Exception e) {
                e.printStackTrace();
            }
        } else {
            MediaScannerConnection.scanFile(mContext.getApplicationContext(), new String[]{file.getAbsolutePath()}, new String[]{"image/jpeg"}, new MediaScannerConnection.OnScanCompletedListener() {
                @Override
                public void onScanCompleted(String path, Uri uri) {

                }
            });
        }
    }




    public static String getMimeType(File file) {
        FileNameMap fileNameMap = URLConnection.getFileNameMap();
        String type = fileNameMap.getContentTypeFor(file.getName());
        return type;
    }

public static Uri toUri(Context context,String filePath) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
            return FileProvider.getUriForFile(context, context.getApplicationInfo().packageName + ".fileprovider", new File(filePath));
        }
        return Uri.fromFile(new File(filePath));
    }