Unable to instantiate fragment make sure class name exists, is public, and has an empty constructor

据说这是自定义Fragment的Bug。自定义Fragment中的构造方法不能传参数，下面是出错的代码：

public ListFragment(String url, int saleway, int page) {
super();
this.mUrl = url;
this.mCurrentPage = page;
this.mSaleway = saleway;
this.mPage = page;
this.mParams = getParams(saleway, page);
}

通过stackoverflow查到方法，修改后代码如下：
public ListFragment() {
super();
}

public static final ListFragment get(String url, int saleway, int page) {
ListFragment fragment = new ListFragment();
Bundle bundle = new Bundle();
bundle.putString(BUNDLE_URL, url);
bundle.putInt(BUNDLE_SALEWAY, saleway);
bundle.putInt(BUNDLE_PAGE, page);
fragment.setArguments(bundle);
return fragment;
}实例化有参数的对象只能通过静态方法get中的Bundle来传递参数。

下面是获取Bundle中的数据

<pre name="code" class="java">public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
Bundle bundle;
if((bundle = getArguments()) != null) {
mUrl = bundle.getString(BUNDLE_URL);
mSaleway = bundle.getInt(BUNDLE_SALEWAY);
mCurrentPage = mPage = bundle.getInt(BUNDLE_PAGE);
mParams = getParams(mSaleway, mPage);
}}