ui_listeners = new LinkedList<AltosUIListener>();
serial_debug = preferences.getBoolean(serialDebugPreference, false);
ui_listeners = new LinkedList<AltosUIListener>();
serial_debug = preferences.getBoolean(serialDebugPreference, false);
synchronized (preferences) {
preferences.putBoolean(serialDebugPreference, serial_debug);
flush_preferences();
synchronized (preferences) {
preferences.putBoolean(serialDebugPreference, serial_debug);
flush_preferences();