mediastore

问题 Uri uri = MediaStore.Audio.Artists.Albums.getContentUri("external", artistId); String[] projection = new String[] {BaseColumns._ID}; Cursor cursor = mContext.getApplicationContext().getContentResolver().query (uri, projection, null, null, null); Prior to Android 10, BaseColumns._ID was returning album_id and now in 10, it returns some random Id. When I passed projection as null and retrieved all column names below are the column name that I get. This is in Android 10. [numsongs, artist,

问题 I am trying to fetch all the photos of my android device. I have an onCreate function: public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ImageAdapter adapter= new ImageAdapter(this); final String[] columns = { MediaStore.Images.Media.DATA, MediaStore.Images.Media._ID }; final String orderBy = MediaStore.Images.Media._ID; Uri rr= MediaStore.Images.Media.INTERNAL_CONTENT_URI; Cursor imagecursor = getContentResolver()

问题 I am showing all available videos in a gridView on which are in SDCard by using following code. String[] proj= {MediaStore.Video.Media._ID,MediaStore.Video.Media.DATA,MediaStore.Video.Media.DISPLAY_NAME, MediaStore.Video.Media.SIZE }; videocursor = getContentResolver().query(MediaStore.Video.Media.EXTERNAL_CONTENT_URI, proj, null, null, null); It is working fine... But if i made any changes to videos (i.e rename, delete) above code is not working. It is showing old content only, means not

问题 I'm trying to get the path from uri. it works in devices below kitkat. I googled and found that I need to get the document Id and then query it with the gallery items. And it works. But I'm facing problem with videos. When i select the video from Videos section, it works. But When I select it from Gallery, my app crashes, giving Illegal Argument exception- Not a document type. I know why it's happening. It is because I'm looking for a document type of video in Gallery section. But how to

问题 I'm following the code here to capture an image with the Google Glass camera. https://developers.google.com/glass/develop/gdk/media-camera/camera#capturing_images_or_video Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); startActivityForResult(intent, 1); Everything is working fine, except that the camera activity requires the user to "tap to accept". Is it possible to just take the photo after a second or so? This is how the built-in camera app works, I just say "ok glass, take a

问题 I have the following code to display an imagepicker. After user picks an image onActivityResult gets called, to return me the data for the selected image. On kindle however, I get a resultCode of 0, and data as null. Anyone else has noticed this problem before? This problem happens only on kindle fire. startActivityForResult(new Intent(Intent.ACTION_PICK, android.provider.MediaStore.Images.Media.INTERNAL_CONTENT_URI), SELECT_PICTURE); 回答1: I'm running into this exact same issue. Prior to the

问题 I need a video gallery on Android sorted by the newest. With the code below, the sorting is with oldest videos on top and newest videos on last. So I need to scroll the entire list before getting the new recorded videos. Any ideas to solve this ? private void init_phone_video_grid() { System.gc(); String[] proj = { MediaStore.Video.Media._ID, MediaStore.Video.Media.DATA, MediaStore.Video.Media.DISPLAY_NAME, MediaStore.Video.Media.SIZE }; videocursor = managedQuery(MediaStore.Video.Media

问题 I need a video gallery on Android sorted by the newest. With the code below, the sorting is with oldest videos on top and newest videos on last. So I need to scroll the entire list before getting the new recorded videos. Any ideas to solve this ? private void init_phone_video_grid() { System.gc(); String[] proj = { MediaStore.Video.Media._ID, MediaStore.Video.Media.DATA, MediaStore.Video.Media.DISPLAY_NAME, MediaStore.Video.Media.SIZE }; videocursor = managedQuery(MediaStore.Video.Media

问题 I am trying to get the no of track in Artist table using mediastore. I am able to get all the artist name but when I try to get the NUMBER_OF_TRACKS I am getting error .I searched and found this But this is not the problem in my case .Here is my code try { String[] proj = {MediaStore.Audio.Artists._ID, MediaStore.Audio.Artists.ARTIST, MediaStore.Audio.ArtistsColumns.NUMBER_OF_TRACKS, MediaStore.Audio.Artists.ARTIST_KEY ,MediaStore.Audio.Artists.NUMBER_OF_ALBUMS };// Can include more data for

问题 I've developed an android app that shows in an adaptor all photos the user has in its device. This is the code I'm using to read the photos: Cursor photos; String pictureCols[] = { MediaStore.Images.Media._ID, MediaStore.Images.Media.DATA, MediaStore.Images.Media.BUCKET_DISPLAY_NAME }; String order = Media.DATE_ADDED + " DESC"; photos = getContentResolver().query(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, pictureCols, null, null, order); photos.moveToFirst(); photosAdapter.addItems(photos)