Sorry for my really bad explanation, this problem drives me up the
wall...
The situation is:
from my app, I call Camera application, take a picture and go back to
my app. So, I do as follows:
Intent camara = new
Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
startActivityForResult(camara, CAMERA_PIC_REQUEST);
Then, when I go back to my app, I handle the picture:
protected void onActivityResult(int requestCode, int
resultCode, Intent data) {
if(requestCode == CAMERA_PIC_REQUEST) {
if(data == null) {
//do some stuff,
}else {
//get the bitmap
Bitmap myPicture =
(Bitmap)data.getExtras().get("data");
//save the bitmap
_pictures.add(myPicture);
//and delete the picture from the
device
_helper.deleteFiles(); //this method, delete
the picture from the
sdcard
_helper = null;
//in the gallery app, remains a
"picture" or thumbnail of the picture I've just taken, and
//here is where I have the problem,
because I cannot find a good solution to delete or clean
//the gallery.
//I'll write my options below
}
}
}
So, the things I tried are:
1) //This option doesn't work on some devices like the galaxy S (I
don't know why)
Uri uri = data.getData();
getContentResolver().delete(uri, null, null);
2) //This option works but launch the mediaScanner, and makes some
devices (like the galaxy S) really slow, so I'm trying
// to avoid this option:
sendBroadcast(new
Intent(Intent.ACTION_MEDIA_MOUNTED, Uri.parse("file://" +
Environment.getExternalStorageDirectory())));
3) //This option tries to change the directory, but I think I'm
missing something, because the pictures are displayed in the gallery
app (and i don't want that)
//Where I launch the camera, I wrote:
_path = Environment.getExternalStorageDirectory()+"/
tempPictures/.nomedia";
File file = new File(_path);
Uri uri = Uri.fromFile( file );
Intent camara = new
Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
camara.putExtra( MediaStore.EXTRA_OUTPUT, uri);
startActivityForResult(camara, CAMERA_PIC_REQUEST);
4) I tried to do what Liang proposed: "You can let camera return
bitmap data, then you handle the data by yourself. There is no file
saved this way." I did using Intent.#setType(String) but It never
worked.
So, what am I missing? what am I doing wrong?
Thanks for reading and helping!
On Apr 26, 2:26 pm, Liang Wang <[email protected]> wrote:
> 1. For first option, if you provide more details , that will be helpful.
>
> 2. For second option. It will be better if you store the file into a
> directory in sd card instead of root directory. For example:
> in /sdcard/TempDir/, there are two files
> .nomedia (empty file, to stop media scanner)
> youfile.jpg (you specified file)
>
> 3. Maybe camera saved another image that can be seen in gallery beside
> saving to your file. If this is true, you can delete your file safely with
> .nomedia protection. It will not influence the gallery.
>
> Hope these are helpful. But camera implementation of different phones may
> differ. I'm not sure if above can work.
>
> On Tue, Apr 26, 2011 at 6:42 PM, Fina Perez <[email protected]> wrote:
>
> > Hi,
> > that's what I'm using now, because I cannot make the first option
> > runs. But I'm having problems with the second option too..
>
> > _path = Environment.getExternalStorageDirectory() + ".nomedia";
> > Intent camara = new
> > Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
> > File file = new File(_path);
> > Uri uri = Uri.fromFile(file);
> > camara.putExtra(MediaStore.EXTRA_OUTPUT, uri);
> > startActivityForResult(camara, CAMERA_PIC_REQUEST);
>
> > this is the code I'm using to "hide" the pictures I take with the
> > camera, but they still appear in the Gallery app, which is what I want
> > to avoid. And I want to avoid the mediascanner runs too...
>
> > Please, please, help!
>
> > On Apr 26, 10:28 am, Liang Wang <[email protected]> wrote:
> > > Hi Fina,
>
> > > I think below code will work:
> > > Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
> > > startActivityForResult(intent, ...);
>
> > > Then you can handle the bitmap in onActivityResult().
>
> > > The code you mentioned is from android built-in Camera application. There
> > > you can see how camera app give result to you. From that you can get how
> > to
> > > handle the result.
>
> > > On Tue, Apr 26, 2011 at 3:51 PM, Fina Perez <[email protected]>
> > wrote:
> > > > Hi Liang!
> > > > thanks a lot for your answer.
>
> > > > I was trying the first option but I'm having problems to tell the
> > > > camera that I want a bitmap. I tryed to use the method
> > > > "Inteng.#setType(String)" but I got an exception And I don't know
> > > > where the code you wrote comes from, I mean Is that the way to ask for
> > > > a bitmap object as result? I thought it was more "intuitive" hehehe
>
> > > > On Apr 22, 11:56 am, Liang Wang <[email protected]> wrote:
> > > > > 1. You can let camera return bitmap data, then you handle the data by
> > > > > yourself. There is no file saved this way.
>
> > > > > 2. If you let camera save the image to file in a specified
> > > > directory(through
> > > > > provider), making a empty file named .nomedia in that directory can
> > > > prevent
> > > > > mediascanner from scanning it. This way this image will not appear in
> > > > > gallery.
>
> > > > > See the code below in Camera:
> > > > > if (mSaveUri != null) {
> > > > > OutputStream outputStream = null;
> > > > > try {
> > > > > outputStream =
> > > > > mContentResolver.openOutputStream(mSaveUri);
> > > > > outputStream.write(data);
> > > > > outputStream.close();
>
> > > > > setResult(RESULT_OK);
> > > > > finish();
> > > > > } catch (IOException ex) {
> > > > > // ignore exception
> > > > > } finally {
> > > > > Util.closeSilently(outputStream);
> > > > > }
> > > > > } else {
> > > > > Bitmap bitmap = createCaptureBitmap(data);
> > > > > setResult(RESULT_OK,
> > > > > new Intent("inline-data").putExtra("data",
> > > > bitmap));
> > > > > finish();
> > > > > }
>
> > > > > On Fri, Apr 22, 2011 at 4:51 PM, Fina Perez <[email protected]>
> > > > wrote:
> > > > > > Hi!
>
> > > > > > I answer myself:
>
> > > > > > maybe is not the best solution but after deleting the file, this is
> > > > > > what I do:
>
> > > > > > sendBroadcast(new Intent(Intent.ACTION_MEDIA_MOUNTED,
> > > > > > Uri.parse("file://" + Environment.getExternalStorageDirectory())));
>
> > > > > > we need to add this to the manifest:
> > > > > > <intent-filter>
> > > > > > <action android:name="android.intent.action.MEDIA_MOUNTED" />
> > > > > > <data android:scheme="file" />
> > > > > > </intent-filter>
>
> > > > > > (I found the solution here:
>
> >http://stackoverflow.com/questions/4430888/android-file-delete-leaves.
> > > > ..
> > > > > > )
>
> > > > > > On Apr 21, 11:32 am, Fina Perez <[email protected]> wrote:
> > > > > > > Hi all!
>
> > > > > > > I'm using the built-in camera in my app to take a picture and to
> > > > save
> > > > > > > it in a database. So, from my activity, I launch the camera, take
> > a
> > > > > > > picture and go back to the activity (thanks to "onActivityResult"
> > > > > > > method). Here, I store the picture in the database and I delete
> > it
> > > > > > > from the phone. Seems to be working properly: the picture is
> > being
> > > > > > > deleted from the sdcard but if you go to the gallery app that
> > comes
> > > > > > > with the device, the picture is being displayed but as a "wrong
> > > > file",
> > > > > > > so you can see that there is/was a picture there but you can't
> > open
> > > > it
> > > > > > > or even see the preview. But I can delete it from the gallery
> > app
> > > > > > > manually (selecting them and then deleting). How can i do this
> > > > > > > programatically?
>
> > > > > > > Thanks a lot! I really need help with this
>
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