slidemenu 不重新加载fragment的方法

public void switchContent(Fragment to) {
if (fragment != to) {
FragmentTransaction transaction = getSupportFragmentManager()
.beginTransaction();
if (!to.isAdded()) { // 先判断是否被add过
transaction.hide(fragment).add(R.id.content_frame, to).commit(); // 隐藏当前的fragment，add下一个到Activity中
} else {
transaction.hide(fragment).show(to).commit(); // 隐藏当前的fragment，显示下一个
}
this.fragment = (SuperFragment) to;
}
// getSupportFragmentManager().beginTransaction()
// .replace(R.id.content_frame, fragment).commit();
showContent();
}