Android obtains video and image thumbnails.

1. There are two ways to get a video Thumbnail (1) through the content provider (2) create a thumbnail manually

(1) The disadvantage is that you must update the media library to see the thumbnail of the latest video.

/**      * @param context      * @param cr     * @param Videopath     * @return      */    public static Bitmap getVideoThumbnail(Context context, ContentResolver cr, String Videopath) {             ContentResolver testcr = context.getContentResolver();             String[] projection = { MediaStore.Video.Media.DATA, MediaStore.Video.Media._ID, };             String whereClause = MediaStore.Video.Media.DATA + " = '" + Videopath + "'";             Cursor cursor = testcr.query(MediaStore.Video.Media.EXTERNAL_CONTENT_URI, projection, whereClause,                             null, null);             int _id = 0;             String videoPath = "";             if (cursor == null || cursor.getCount() == 0) {                     return null;             }             if (cursor.moveToFirst()) {                     int _idColumn = cursor.getColumnIndex(MediaStore.Video.Media._ID);                     int _dataColumn = cursor.getColumnIndex(MediaStore.Video.Media.DATA);                     do {                             _id = cursor.getInt(_idColumn);                             videoPath = cursor.getString(_dataColumn);                     } while (cursor.moveToNext());             }             cursor.close();            BitmapFactory.Options options = new BitmapFactory.Options();             options.inDither = false;             options.inPreferredConfig = Bitmap.Config.RGB_565;             Bitmap bitmap = MediaStore.Video.Thumbnails.getThumbnail(cr, _id, Images.Thumbnails.MINI_KIND,                             options);             return bitmap;     }

(2) It takes a little time to create a thumbnail manually.

/*** Get the video thumbnail * @ Param videopath * @ Param width * @ Param height * @ Param kind * @ return */private bitmap getvideothumbnail (string videopath, int width, int height, int kind) {Bitmap bitmap = NULL; bitmap = thumbnailutils. createvideothumbnail (videopath, kind); bitmap = thumbnailutils. extractthumbnail (bitmap, width, height, thumbnailutils. options_recycle_input); Return bitmap ;}

2. Image thumbnails

 /**      *       * @param context      * @param cr     * @param Imagepath      * @return      */    public static Bitmap getImageThumbnail(Context context, ContentResolver cr, String Imagepath) {             ContentResolver testcr = context.getContentResolver();             String[] projection = { MediaStore.Images.Media.DATA, MediaStore.Images.Media._ID, };             String whereClause = MediaStore.Images.Media.DATA + " = '" + Imagepath + "'";             Cursor cursor = testcr.query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, projection, whereClause,                             null, null);             int _id = 0;             String imagePath = "";             if (cursor == null || cursor.getCount() == 0) {                     return null;             }             if (cursor.moveToFirst()) {                     int _idColumn = cursor.getColumnIndex(MediaStore.Images.Media._ID);                     int _dataColumn = cursor.getColumnIndex(MediaStore.Images.Media.DATA);                     do {                             _id = cursor.getInt(_idColumn);                             imagePath = cursor.getString(_dataColumn);                     } while (cursor.moveToNext());             }             cursor.close();            BitmapFactory.Options options = new BitmapFactory.Options();             options.inDither = false;             options.inPreferredConfig = Bitmap.Config.RGB_565;             Bitmap bitmap = MediaStore.Images.Thumbnails.getThumbnail(cr, _id, Images.Thumbnails.MINI_KIND,                             options);             return bitmap;     }