mediastore

问题 For my application, I'd been using my own Camera class for taking images and my own database but soon enough I couldn't really keep up with changes and I decided to use the built in camera application in Android to do the job, but I can't seem to get it to save file. What am I missing here? The application seems to save the file but it's just 0 bytes. I looked up the source code of the Camera application and it's looking for the "output" in Extras to save the file. Any help would be greatly

问题 I have two activity: Main and Processing. in the Processing activity do an edit operation on the file names in a folder, and then start a scan to update via broadcast, and I check when the scan finish. //end batch renaming operation //start updating media store library sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED,Uri.parse("file://"+Environment.getExternalStorageDirectory()))); //show toast "updating" op_media_mounted.show(); //catch when updaitng op ends IntentFilter filter = new

问题 I am trying set a ringtone through my android application. I tried with this code public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); String filepath ="/sdcard/sound.mp3"; File ringtoneFile = new File(filepath); ContentValues content = new ContentValues(); content.put(MediaStore.MediaColumns.DATA,ringtoneFile.getAbsolutePath()); System.out.println(ringtoneFile.getAbsolutePath()+"+++++++++++++++++++++++++"); content.put

问题 I'm using the standard camera intent to take a photo: Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE); startActivityForResult(takePictureIntent, actionCode); And then in onActivityResult () Bundle extras = intent.getExtras(); Bitmap imageBitmap = (Bitmap) extras.get("data"); mImageView.setImageBitmap(imageBitmap); Bitmap is a thumbnail. That's great - I don't need full size images. Before user can take a photo, I display a default thumbnail that they can click and that

问题 I moving and deleting lots of images and videos as per my requirement and now i am scan media by using Intent scanFileIntent = new Intent( Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, uri); sendBroadcast(scanFileIntent); all working fine but sometime freeze the screen, i think some issue in MediaScanner. And my second quetion is how to scan all media Store rether than scan perticuler File. Thanks in Advance!! 回答1: You should try this solution for amove and delete the image. Pass file directory path

问题 i need to load a couple of gifs into a custom gallery view. using the mediastore only provides me with png/jpg image types. after a couple of hours googleing i still could not find the answer.. the code i use to load images from the mediastore is: final String sortOrder = mPreferences.getSortMode(); final Uri uri = android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI; String[] projection = { MediaStore.MediaColumns.DATA, MediaStore.Images.Media.BUCKET_ID, MediaStore.Images.Media

问题 I'm storing a picture from my Camera like this: String newName = new BigInteger(130, new SecureRandom()) .toString(24); File mydir = new File(Environment.getExternalStorageDirectory().getAbsolutePath(), CameraActivity.DIR_PICTURES); mydir.mkdirs(); fileWithinMyDir = new File(mydir, newName + ".png"); out = new FileOutputStream(fileWithinMyDir); finalBitmap.compress(Bitmap.CompressFormat.PNG, 100, out); where CameraActivity.DIR_PICTURES stands for "com.korcholis.testapp/pictures" . Nothing

问题 I have a gridview of about 1500 images. I'm using thumbnails from MediaStore to show them. But when I've populated the grid in UI thread it worked too slow for the first time (thumbnails not created yet?). So I've decided to move this process to background. Using this tutorial and one another I've written this class: public class ImageLoader { // ----------------------------------------------------------------------- // // Fields // // ---------------------------------------------------------

问题 Hopefully someone can clarify this to me...I am working on a simple video player app that plays video clip stored on phone. All examples I've seen fetch video using MediaStore.Video.Media.EXTERNAL_CONTENT_URI content Uri, something like that cursor = resolver.query(MediaStore.Video.Media.EXTERNAL_CONTENT_URI, cols, whereClause, null, sortOrder); But won't it limit the list to only files stored on SD card? Newer android phones has significant amount of internal memory - for example, Samsung

问题 I want to retrieve whole audio_genres_map table from mediastore in one query. I have all the audio info and genre info but the missing piece is the mapping. I am able to do it in multiple queries. I want to achieve it one query 回答1: managed to solve this using following query String[] genresProjection = { Audio.Genres.Members.AUDIO_ID, Audio.Genres.Members.GENRE_ID }; context.getContentResolver().query(Uri.parse("content://media/external/audio/genres/all/members"), genresProjection, null,