Hi!
I'm developing an image editor for android. In the main activity, I
get to show all images by viewing the thumbnails to make the process
faster. The problem it's that I need to process the image later and I
would get the normal image ID (with the original size, which I think
is in MediaStore.Images.Media). I can't get the form of the query. The
code that I have is the following but I can't obtain the real image ID
(in the IDImage variable):
int columnIndex = 0;
String[] projection = {MediaStore.Images.Thumbnails._ID,
MediaStore.Images.Thumbnails.DATA};
// It is necessary to use EXTERNAL_CONTENT_URI of Thumbnails
because it contains the
// little image and not the original
Cursor cursor =
managedQuery(MediaStore.Images.Thumbnails.EXTERNAL_CONTENT_URI,
projection,
null,
null,
null);
if(cursor != null)
{
cursor.moveToPosition(position);
columnIndex =
cursor.getColumnIndexOrThrow(MediaStore.Images.Thumbnails.DATA);
String imagePath = cursor.getString(columnIndex);
columnIndex =
cursor.getColumnIndexOrThrow(MediaStore.Images.Thumbnails._ID);
String _IDThumbnails = cursor.getString(columnIndex);
String[] nProjection = {MediaStore.Images.Media._ID,
MediaStore.Images.Media.PICASA_ID};
String nSelection = MediaStore.Images.ImageColumns.PICASA_ID
+ " = " + _IDThumbnails;
Cursor nCursor =
managedQuery(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
nProjection, nSelection, null, null);
nCursor.moveToFirst();
columnIndex =
cursor.getColumnIndexOrThrow(MediaStore.Images.Media._ID);
String _IDImage = cursor.getString(columnIndex);
FileInputStream is = null;
BufferedInputStream bis = null;
try
{
is = new FileInputStream(new File(imagePath));
bis = new BufferedInputStream(is);
// Imagen is a class that I have defined
image = new Imagen(BitmapFactory.decodeStream(bis),
_IDImage);
}
catch(Exception e)
{
}
finally
{
try
{
if(bis != null)
bis.close();
if(is != null)
is.close();
cursor.close();
projection = null;
}
catch(Exception e)
{
}
}
}
Thank you. Regards,
Jesús
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