如何从视频路径中显示视频缩略图？(how can I show a video thumbnail from a video path?)

 我想通过存储上的视频路径在ImageView中显示视频缩略图。 是否有一个函数采用视频路径并返回缩略图的位图？ 我通过以下代码获取视频路径： 
 
public ArrayList<String> getAllMedia() {
  HashSet<String> videoItemHashSet = new HashSet<>();
  String[] projection = {MediaStore.Video.VideoColumns.DATA, MediaStore.Video.Media.DISPLAY_NAME};
  Cursor cursor = getContext().getContentResolver().query(MediaStore.Video.Media.EXTERNAL_CONTENT_URI, projection, null, null, null);
  try {
    cursor.moveToFirst();
    do {
      videoItemHashSet.add((cursor.getString(cursor.getColumnIndexOrThrow(MediaStore.Video.Media.DATA))));
    } while(cursor.moveToNext());
    cursor.close();
  } catch(Exception e) {
    e.printStackTrace();
  }
  ArrayList<String> downloadedList = new ArrayList<>(videoItemHashSet);
  return downloadedList;
}

I want to show a video thumbnail in an ImageView from a video path on storage. Is there a function that takes a video path and returns a bitmap of a thumbnail? I get the video path by this code:
 
public ArrayList<String> getAllMedia() {
  HashSet<String> videoItemHashSet = new HashSet<>();
  String[] projection = {MediaStore.Video.VideoColumns.DATA, MediaStore.Video.Media.DISPLAY_NAME};
  Cursor cursor = getContext().getContentResolver().query(MediaStore.Video.Media.EXTERNAL_CONTENT_URI, projection, null, null, null);
  try {
    cursor.moveToFirst();
    do {
      videoItemHashSet.add((cursor.getString(cursor.getColumnIndexOrThrow(MediaStore.Video.Media.DATA))));
    } while(cursor.moveToNext());
    cursor.close();
  } catch(Exception e) {
    e.printStackTrace();
  }
  ArrayList<String> downloadedList = new ArrayList<>(videoItemHashSet);
  return downloadedList;
}

原文：https://stackoverflow.com/questions/50073474