保存bitmap为图片

最新推荐文章于 2023-03-29 16:33:12 发布

原创最新推荐文章于 2023-03-29 16:33:12 发布 · 805 阅读

CC 4.0 BY-SA版权

public Bitmap createViewBitmap(View v) {
   Bitmap bitmap = Bitmap.createBitmap(1920, 1080,
      Bitmap.Config.ARGB_8888);
   Canvas canvas = new Canvas(bitmap);
   v.draw(canvas);
   return bitmap;
}

public int saveImageToGallery(Bitmap bmp) {
   //生成路径
   String root = Environment.getExternalStorageDirectory().getAbsolutePath();
   String dirName = "Screenshots";
   File appDir = new File(root, dirName);
   if (!appDir.exists()) {
      appDir.mkdirs();
   }

   //文件名为时间
   long timeStamp = System.currentTimeMillis();
   SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
   String sd = sdf.format(new Date(timeStamp));
   String fileName = sd + ".jpg";

   //获取文件
   File file = new File(appDir, fileName);
   FileOutputStream fos = null;
   try {
      fos = new FileOutputStream(file);
      bmp.compress(Bitmap.CompressFormat.JPEG, 100, fos);
      fos.flush();
      //通知系统相册刷新
      mContext.sendBroadcast(new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE,
         Uri.fromFile(new File(file.getPath()))));
      return 2;
   } catch (FileNotFoundException e) {
      e.printStackTrace();
   } catch (IOException e) {
      e.printStackTrace();
   } finally {
      try {
         if (fos != null) {
            fos.close();
         }
      } catch (IOException e) {
         e.printStackTrace();
      }
   }
   return -1;
}