Android 图片保存到相册不显示的解决方案(兼容Android 10及更高版本)

public static void savePhotoAlbum(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(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)));
}

 MediaStore.Images.Media.insertImage(context.getContentResolver(),
				file.getAbsolutePath(), fileName, null);

context.sendBroadcast(new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, Uri.parse("file://" + path)));

    /**
     * 添加水印并保存到系统相册
     */
    private void imgMerge() {
        new Thread(() -> {
            try {
                Bitmap bitmap = BitmapFactory.decodeResource(getResources(), R.drawable.test);
                File file = new File(getExternalFilesDir(Environment.DIRECTORY_PICTURES), "newFile.jpg");
                if (!file.exists()) {
                    file.createNewFile();
                }
                //添加水印文字位置。
                Bitmap newBitmap = addTextWatermark(bitmap, "测试demo示例");
                //保存到系统相册
                savePhotoAlbum(newBitmap, file);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }).start();
    }
    
    /**
     * 保存到相册
     *
     * @param src  源图片
     * @param file 要保存到的文件
     */
    private void savePhotoAlbum(Bitmap src, File file) {
        if (isEmptyBitmap(src)) {
            return;
        }
        //先保存到文件
        OutputStream outputStream;
        try {
            outputStream = new BufferedOutputStream(new FileOutputStream(file));
            src.compress(Bitmap.CompressFormat.JPEG, 100, outputStream);
            if (!src.isRecycled()) {
                src.recycle();
            }
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
        //再更新图库
        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 = getContentResolver();
            Uri uri = contentResolver.insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,  values);
            if (uri == null) {
                return;
            }
            try {
                outputStream = contentResolver.openOutputStream(uri);
                FileInputStream fileInputStream = new FileInputStream(file);
                FileUtils.copy(fileInputStream, outputStream);
                fileInputStream.close();
                outputStream.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        } else {
            MediaScannerConnection.scanFile(
                    getApplicationContext(),
                    new String[]{file.getAbsolutePath()},
                    new String[]{"image/jpeg"},
                    (path, uri) -> {
                        // Scan Completed
                    });
        }
    }