我在片段得到RecycleView和點擊recycleview元素後，我需要將數據發送到該片段並重新啓動它

Question

嗨，我有recycleView在我的片段

@Override 
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { 
    View view = inflater.inflate(R.layout.fragment_list_petrole, container, false); 

    recyclerView = (RecyclerView)view.findViewById(R.id.recycle_view); 
    allPetroles = getArguments().getParcelableArrayList("petroles"); 

    mLayoutManager = new LinearLayoutManager(getActivity()); 
    recyclerView.setLayoutManager(mLayoutManager); 

    mAdapter = new RecyclerAdapter(allPetroles, getActivity()); 
    recyclerView.setAdapter(mAdapter); 


    return view; 
} 

在RecycleView適配器我在onBindViewHolder設置OnClickListener，所以我需要點擊發回給分片的一些信息（位置），然後做出一些改變一些生後（重發此信息到活動並添加了一些新的觀點有上Gmaps） 這onBindViewHolder：

@Override 
public void onBindViewHolder(final ViewHolder holder, final int position) { 

    holder.linearClick.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 
      positionClick = position; 
      notifyDataSetChanged(); 


--------------I NEED CODE HERE---------------------- 

     } 
    }); 
    if (positionClick == position) { 
     holder.linearClick.setSelected(true); 
    } 
    else { 
     holder.linearClick.setSelected(false); 
    } 

和我不不明白我應該怎麼做此做

Answer 1

在RecyclerAdapter：

1-添加一個內部接口：

/********** 
* 
* Inner interface 
* 
*/ 
public interface OnClickListener { 
    void onItemClicked(Item item); 
} 

2-添加參數在構造：

public RecyclerAdapter(Context context, List<Item> data, OnClickListener onClickListener) { 
    mContext = context; 
    mData = data; 
    mListener = onClickListener 
} 

3-呼叫監聽器：

@Override 
public void onBindViewHolder(final ViewHolder holder, final int position) { 
    holder.linearClick.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View view) { 
      //positionClick = position; 
      //you don't need this here : notifyDataSetChanged(); 
      mListener.onItemClicked(mData.get(position)); 
     } 
    }); 
    if (positionClick == position) { 
     holder.linearClick.setSelected(true); 
    } 
    else { 
     holder.linearClick.setSelected(false); 
    } 

您的片斷應該實現RecyclerAdapter.OnClickListener

public class YourFragment extends Fragment implements RecyclerAdapter.OnClickListener { 

    @Override 
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { 
     return inflater.inflate(R.layout.fragment_list_petrole, container, false); 
    } 

    @Override 
    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) { 
     super.onViewCreated(view, savedInstanceState); 
     recyclerView = (RecyclerView)view.findViewById(R.id.recycle_view); 
     allPetroles = getArguments().getParcelableArrayList("petroles"); 

     mLayoutManager = new LinearLayoutManager(getActivity()); 
     recyclerView.setLayoutManager(mLayoutManager); 

     mAdapter = new RecyclerAdapter(getActivity(), allPetroles, this); 
     recyclerView.setAdapter(mAdapter); 
    } 

    @Override 
    void onItemClicked(Item item) { 
     // TODO put your code here 
    } 
}