/** When the 'restore defaults' preference is clicked, restore the default settings */
public boolean onPreferenceClick(Preference preference) {
updateOptions();
if (preference == restoreDefaults) {
options = defaultOptions.copy();
createView();
} else if (preference == setAllToPiano) {
for (int i = 0; i < options.instruments.length; i++) {
options.instruments[i] = 0;
}
createView();
}
return true;
}
