Thanks Mark (sorry to have two separate threads going on here). I'll take a look at the code in your book.
If I succeed, I'll post my code here for others to use. Links from other readers also much appreciated. Best wishes, Anna On May 7, 1:03 am, Mark Murphy <[email protected]> wrote: > Anna PS wrote: > > Thanks Mark. I've tried to intercept the Camera class's onKeyDown > > event to save a picture and take the URI back to my home activity - > > code below. > > There is no onKeyDown() in the Camera class. > > http://developer.android.com/reference/android/hardware/Camera.html > > > > > Unfortunately, this is crashing with > > "Java.Lang.UnsupportedOperationException: Unknown URI: > > content://media/external/images/media". > > > Can you advise? > > > Anna > > > public boolean onKeyDown(int keyCode, KeyEvent event) { > > ImageCaptureCallback iccb = null; > > Uri uri = null; > > if (keyCode == KeyEvent.KEYCODE_DPAD_CENTER) { > > Log.e(LOG_TAG, "KeyEvent.KEYCODE_DPAD_CENTER pressed"); > > try { > > String filename = timeStampFormat.format(new > > Date()); > > ContentValues values = new ContentValues(); > > values.put(Media.TITLE, filename); > > values.put(Media.DESCRIPTION, "Image capture by > > camera"); > > uri = > > getContentResolver().insert(Media.EXTERNAL_CONTENT_URI, > > values); > > iccb = new > > ImageCaptureCallback(getContentResolver() > > .openOutputStream(uri)); > > } catch (Exception ex) { > > ex.printStackTrace(); > > Log.e(getClass().getSimpleName(), > > ex.getMessage(), ex); > > } > > } > > if (keyCode == KeyEvent.KEYCODE_BACK) { > > return super.onKeyDown(keyCode, event); > > } > > > if (keyCode == KeyEvent.KEYCODE_DPAD_CENTER) { > > camera.takePicture(mShutterCallback, > > mPictureCallbackRaw, iccb); > > Log.d(LOG_TAG, > > "Taken picture from > > KeyEvent.KEYCODE_DPAD_CENTER, uri = " > > + uri.toString()); > > Intent i = new Intent(CameraActivity.this, Home.class); > > i.setData(uri); > > startActivity(i); > > return true; > > } > > return false; > > } > > I don't know how this code is being executed. I don't know what > ImageCaptureCallback is. And I'm still not 100% sure why you're wanting > a URI out of the deal. > > For some sample Camera-using code, you can grab the source code to my > Advanced Android book: > > http://commonsware.com/AdvAndroid/ > > I can tell you that your code above has two keyCode == > KeyEvent.KEYCODE_DPAD_CENTER items, which seems a bit odd given the > structure of the method. > > If I were in your shoes, and going only by the limited use case you > documented. I would: > > -- Use the Camera API to get the byte array > > -- Write the byte array to a JPEG file on the SD card > > -- Use that file as the basis for your thumbnail > > -- Use that file as the attachment in your email > > -- Let the Media content provider deal with indexing your image on its > own time, or delete the image once it's emailed if you no longer need it > > It may be you have other criteria that cannot be met by the above > procedure, in which case I apologize. > > -- > Mark Murphy (a Commons > Guy)http://commonsware.com|http://twitter.com/commonsguy > > _The Busy Coder's Guide to Android Development_ Version 2.0 Available! --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
