Question

我有Click方法将图像保存到图库。点击＆＃34;保存＆＃34;该文件夹是在图库中创建的，但是当我进入图库时它会说＆＃34;没有缩略图＆＃34; ... 这是我的代码：

 String root = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES).toString();
                File myDir = new File(root + "/PhotoEditor ");
                myDir.mkdirs();
                Random generator = new Random();
                int n = 10000;
                n = generator.nextInt(n);
                String fname = "Image-" + n + ".jpg";
                File file = new File(myDir, fname);
                if (file.exists())
                    file.delete();
                try {
                    FileOutputStream out = new FileOutputStream(file);
                    if (sb != null) {
                        sb.compress(Bitmap.CompressFormat.JPEG, 90, out);
                    }
                    out.flush();
                    out.close();
                }
                catch (Exception e) {
                    e.printStackTrace();
                }
                Toast.makeText(ShowPhotoActivity.this,"Your image is saved to gallery",Toast.LENGTH_LONG).show();


                // Tell the media scanner about the new file so that it is
                // immediately available to the user.
                MediaScannerConnection.scanFile(ShowPhotoActivity.this, new String[] { file.toString() }, null,
                        new MediaScannerConnection.OnScanCompletedListener() {
                            public void onScanCompleted(String path, Uri uri) {
                                Log.i("ExternalStorage", "Scanned " + path + ":");
                                Log.i("ExternalStorage", "-> uri=" + uri);
                            }
                        });

Answer 1

你能记录＆＃34; file.toString（）＆＃34;看看你得到了什么？您可能需要传递绝对路径：file.getAbsolutePath（）而不是调用file.toString（）但很难诊断。您是否已使用文件管理器应用程序确认在关闭流后jpg确实存在？

它说＆＃34;没有缩略图＆＃34;将图像保存到gallery- android位图后

1 个答案: