/** Disable/enable the move-to-newer/older buttons. */
@Override
protected void updateNavigationArrows() {
final MessageOrderManager orderManager = getMessageOrderManager();
if (orderManager == null) {
// shouldn't happen, but just in case
mMessageCommandButtons.enableNavigationButtons(false, false, 0, 0);
} else {
mMessageCommandButtons.enableNavigationButtons(
orderManager.canMoveToNewer(), orderManager.canMoveToOlder(),
orderManager.getCurrentPosition(), orderManager.getTotalMessageCount());
}
}
/** Must be called just after the activity sets up the content view. */
@Override
public void onActivityViewReady() {
super.onActivityViewReady();
// Set up content
mThreePane = (ThreePaneLayout) mActivity.findViewById(R.id.three_pane);
mThreePane.setCallback(this);
mMessageCommandButtons = mThreePane.getMessageCommandButtons();
mMessageCommandButtons.setCallback(new CommandButtonCallback());
}
