public class chapterIndexFragment extends Fragment implements view.OnClickListener，parsexml.AsyncResponse {
// TODO：重命名参数参数，选择匹配的名称 //片段初始化参数，例如ARG_ITEM_NUMBER
private static final String ARG_PARAM1 = "xml";
//private static final String ARG_PARAM2 = "param2";
private XmlResourceParser xrp;
private View rootview;
private OnFragmentInteractionListener mListener;
private RecyclerView mRecyclerView;
private RecyclerView.Adapter mAdapter;
private RecyclerView.LayoutManager mLayoutManager;
public chapterIndexFragment() {
// Required empty public constructor
}
/**
* Use this factory method to create a new instance of
* this fragment using the provided parameters.
*
* @param param1 Parameter 1.
* @param param2 Parameter 2.
* @return A new instance of fragment chapterIndexFragment.
*/
// TODO: Rename and change types and number of parameters
public static chapterIndexFragment newInstance(int xmlid) {
chapterIndexFragment fragment = new chapterIndexFragment();
Bundle args = new Bundle();
args.putInt(ARG_PARAM1,xmlid);
fragment.setArguments(args);
return fragment;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (getArguments() != null) {
xrp = getResources().getXml(getArguments().getInt(ARG_PARAM1));
//Async Task.
parsexml pxml = new parsexml(this);
pxml.execute(xrp);
}
}
@Override
public void postProgress(String progress) {
// Why this does not resolve ????
mAdapter.mDataset
}
@Override
public void onFinish(Boolean result) {
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
rootview = inflater.inflate(R.layout.fragment_recycler_view, container, false);
mRecyclerView = (RecyclerView) rootview.findViewById(R.id.recycler_view);
// use this setting to improve performance if you know that changes
// in content do not change the layout size of the RecyclerView
mRecyclerView.setHasFixedSize(true);
// use a linear layout manager
mLayoutManager = new LinearLayoutManager(getActivity());
mRecyclerView.setLayoutManager(mLayoutManager);
// When coming back to this fragment from another fragment with back button. Although view hierarchy is to
//be built again but Adapter will have its data preserved so dont initialize again.
//String[] TempData = new String[]{"One","Two","three","four"};
if(mAdapter == null)
mAdapter = new MyAdapter();
mRecyclerView.setAdapter(mAdapter);
return rootview;
}
// TODO: Rename method, update argument and hook method into UI event
public void onButtonPressed(Uri uri) {
if (mListener != null) {
mListener.onFragmentInteraction(uri);
}
}
@Override
public void onAttach(Context context) {
super.onAttach(context);
if (context instanceof OnFragmentInteractionListener) {
mListener = (OnFragmentInteractionListener) context;
} else {
throw new RuntimeException(context.toString()
+ " must implement OnFragmentInteractionListener");
}
}
@Override
public void onActivityCreated(@Nullable Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
Toolbar toolbar = (Toolbar) getActivity().findViewById(R.id.toolbar);
toolbar.setTitle("Title");
toolbar.setNavigationIcon(R.drawable.ic_menu_hamburger);
//toolbar navigation button (Home Button\Hamburger button) at the start of the toolbar.
toolbar.setNavigationOnClickListener(this);
//Toolbar menu item click listener.
//toolbar.setOnMenuItemClickListener(this);
}
@Override
public void onDetach() {
super.onDetach();
mListener = null;
}
@Override
public void onClick(View view) {
int id = view.getId();
switch(id)
{
case -1: // Toolbar's Navigation button click retruns -1. Hamburger icon.
if (view instanceof ImageView)
{
if (((MainActivity)getActivity()).drawer.isDrawerOpen(GravityCompat.START))
{
((MainActivity)getActivity()).drawer.closeDrawer(GravityCompat.START);
}
else
{
((MainActivity)getActivity()).drawer.openDrawer(GravityCompat.START);
}
}
break;
}
}
/**
* This interface must be implemented by activities that contain this
* fragment to allow an interaction in this fragment to be communicated
* to the activity and potentially other fragments contained in that
* activity.
* <p>
* See the Android Training lesson <a href=
* "http://developer.android.com/training/basics/fragments/communicating.html"
* >Communicating with Other Fragments</a> for more information.
*/
public interface OnFragmentInteractionListener {
// TODO: Update argument type and name
void onFragmentInteraction(Uri uri);
}
class MyAdapter extends RecyclerView.Adapter implements MyViewHolder.IItemClickListener{
private ArrayList<String> mDataset;
// Provide a suitable constructor (depends on the kind of dataset)
MyAdapter(){
if(mDataset == null)
{
mDataset = new ArrayList<String>();
}
}
// Create new views (invoked by the layout manager)
@Override
public MyViewHolder onCreateViewHolder(ViewGroup parent,
int viewType) {
// create a new view
View v = LayoutInflater.from(parent.getContext())
.inflate(R.layout.recycler_viewholder,parent,false);
// set the view's size, margins, paddings and layout parameters
MyViewHolder vh = new MyViewHolder(v,this);
return vh;
}
// Replace the contents of a view (invoked by the layout manager)
@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
// - get element from your dataset at this position
// - replace the contents of the view with that element
MyViewHolder vh = (MyViewHolder)holder;
vh.mtv_Title.setText(mDataset.get(position));
}
// Return the size of your dataset (invoked by the layout manager)
@Override
public int getItemCount() {
return mDataset.size();
}
//MyViewHolder.IItemClickListener
@Override
public void onItemClick(View view, int position) {
}
}
// Provide a reference to the views for each data item
// Complex data items may need more than one view per item, and
// you provide access to all the views for a data item in a view holder
static class MyViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
// each data item is just a string in this case
TextView mtv_Title;
IItemClickListener mItemClickListener;
//View.OnClickListener
@Override
public void onClick(View view) {
mItemClickListener.onItemClick(view,getAdapterPosition());
}
interface IItemClickListener
{
void onItemClick(View view, int position);
}
MyViewHolder(View v,IItemClickListener itemClickListener) {
super(v);
mtv_Title = (TextView)v.findViewById(R.id.tv_title);
mItemClickListener = itemClickListener;
v.setOnClickListener(this);
}
}
}
在@Override中 public void postProgress（String progress）{
// Why this does not resolve ????
mAdapter.mDataset
}
答案 0 :(得分：0)
你应该知道，
不能通过点表示法访问私人会员。要访问它们，我们使用getter / setter方法。
你必须创建一个公共函数来获取它们，在你的内部类中添加这个方法，
public ArrayList<String> getDataSet() {
return mDataSet;
}
此外，您应该按照@android_hub
的指示进行更改private RecyclerView.Adapter mAdapter;
应该是私人的
private MyAdapter mAdapter;