[android]way to refresh gallery after saving image?

If you can use Air 3.0, create a native extension, and call this code (in Java)

taken from: http://developer.android.com/resources/samples/ApiDemos/src/com/example/android/apis/content/ExternalStorage.html

    // Tell the media scanner about the new file so that it is

    // immediately available to the user.

    MediaScannerConnection.scanFile(this,new String[] { file.toString() }, null,

    new MediaScannerConnection.OnScanCompletedListener() {

    public void onScanCompleted(String path, Uri uri) {

    Log.i("ExternalStorage", "Scanned " + path + ":");

    Log.i("ExternalStorage", "-> uri=" + uri);

    }

    });

You might need to wait AIR 3.0. You will probably need a native extension for AIR that will use that java API.

Im not sure exactly how to implement it without seeing your code, but im sure you can do this using a timer, witha update interval. Google it, look into timers.