为什么视频缩略图在listView列表中不显示

Question

String urlvideo=cursor.getString(cursor.getColumnIndex("Video"));
contenttv.setText(content);
timeiv.setText(time);
imgiv.setImageBitmap(getImageThumbnail(url, 200, 200));
videoiv.setImageBitmap(getVideoThumbnail(urlvideo, 200, 200,
MediaStore.Images.Thumbnails.MICRO_KIND));

            private Bitmap getVideoThumbnail(String uri, int width, int height, int kind) {
Bitmap bitmap = null;
bitmap = ThumbnailUtils.createVideoThumbnail(uri, kind);
bitmap = ThumbnailUtils.extractThumbnail(bitmap, width, height,
        ThumbnailUtils.OPTIONS_RECYCLE_INPUT);

return bitmap;

Answer 1

http://blog.csdn.net/vitamio/article/details/51354555