Hi
I am puzzled how best to copy a JPEG image data bytes held by the
MediaStore.Images ContentProvider to a byte [] within an Activity. I
am not certain about how the java.io
Classses fit into my scenario...
So a sketch of the code might look something like ...
import android.provider.MediaStore.Images;
import android.net.Uri;
import android.database.Cursor;
<SNIP...>
</SNIP>
Uri extImagesUri = Images.Media.EXTERNAL_CONTENT_URI; // Images on SD
Card
// Obtain a Cursor
Cursor cur = managedQuery(extImagesUri, null, null, null, null);
int rowIndex = cur.getColumnIndexOrThrow(Images.ImageColumns._ID);
Uri imageUri = null;
byte [] imageBytes = null;
String rowStr = null;
InputStream inStream=null;
OutputStream outStream = null;
// Iterate through cursor rows
cur.moveToFirst();
while ( cur.moveToNext() ) {
// Get RowID
long rowID = cur.getLong( rowIndex );
// Image URI
rowStr = (new Long(rowID)).toString();
imageUri = Uri.withAppendedPath(extImagesUri, rowStr) ;
// Now open an InputStream or OutputStream or a File ??
<Please Help Here !!>
inStream = getContentResolver().openInputStream( imageUri );
// OR ??
outStream = getContentResolver().openOutputStream( imageUri );
// OR ??
ParcelFiledescriptor pFD = getContentResolver().
openFileDescriptor(imageUri, "r");
// then open a FileInputStream ??
// transfer (copy) image content bytes to imageBytes array
< Please help here !!>
// do something with imageBytes ...
}
Can someone please give me some pointers. I am rather a Java newbie
so
am notclear about which of the java.io classes to leverage.
Thanks
Graeme
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