/** Set state mode based on explicit user action. */
private void setUserMode(int mode) {
mState.userMode = mode;
/// M: Check the fragment get from FragmentManager whether is null.
DirectoryFragment directory = DirectoryFragment.get(getFragmentManager());
if (directory != null) {
directory.onUserModeChanged();
} else {
Log.w(TAG, "setUserMode with null DirectoryFragment in activity:" + this.hashCode());
}
}
private void setDisplayFileSize(boolean display) {
LocalPreferences.setDisplayFileSize(this, display);
mState.showSize = display;
DirectoryFragment.get(getFragmentManager()).onDisplayStateChanged();
invalidateOptionsMenu();
}