3
我使用下面的代碼來獲取JPG
和AVI
文件的縮略圖,但我無法從.mov文件中獲取縮略圖。如何從Android中的.mov文件獲取縮略圖?
String[] projection_image = { MediaStore.Images.Media.DATA, MediaStore.Images.Media._ID, };
String[] projection_video = { MediaStore.Video.Media.DATA, MediaStore.Video.Media._ID, };
File file = new File(viewTag.mFileNode.mName) ;
String tempfilePath = file.getPath();
String whereClause_image = MediaStore.Images.Media.DATA + " = '" + tempfilePath + "'";
String whereClause_video = MediaStore.Video.Media.DATA + " = '" + tempfilePath + "'";
ContentResolver cr = getActivity().getContentResolver();
Cursor image_cursor = cr.query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, projection_image, whereClause_image, null, null);
Cursor video_cursor = cr.query(MediaStore.Video.Media.EXTERNAL_CONTENT_URI, projection_video, whereClause_video, null, null);
try {
if(image_cursor.moveToFirst()){
long thumID = image_cursor.getLong(image_cursor.getColumnIndex("_ID"));
Bitmap bitmap_image = MediaStore.Images.Thumbnails.getThumbnail(getActivity().getContentResolver(), thumID, Images.Thumbnails.MICRO_KIND, null);
viewTag.mThumbnail.setImageBitmap(bitmap_image) ;
}
if(video_cursor.moveToFirst()){
long thumID = video_cursor.getLong(video_cursor.getColumnIndex("_ID"));
Bitmap bitmap_video = MediaStore.Video.Thumbnails.getThumbnail(getActivity().getContentResolver(), thumID, Video.Thumbnails.MICRO_KIND, null);
viewTag.mThumbnail.setImageBitmap(bitmap_video) ;
}
} catch (NullPointerException e) {
// TODO: handle exception
Log.i(TAG, "cursor---NullPointerException");
image_cursor = cr.query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, projection_image, whereClause_image, null, null);
video_cursor = cr.query(MediaStore.Video.Media.EXTERNAL_CONTENT_URI, projection_video, whereClause_video, null, null);
} finally{
image_cursor.close();
video_cursor.close();
}
是否有人知道如何在Android中使用MediaStore
擺脫傳送文件的縮略圖?
我認爲不支持在Android .mov文件,請對支持的媒體類型看看這裏[支持的媒體格式(http://developer.android.com/guide/appendix/media-formats.html ) – 2014-02-11 06:02:49