Java recyclerView中的错误

有人能检查一下里面有没有错误吗。这是我的代码，如果代码有错误请告诉我？我不知道如何修复代码Search.java

在我的RecyclerItemClickListener.java中

public interface RecyclerItemClickListener {
void onItemClick(int position);   
}

我的适配器HierAdapter.java

public class HireAdapter extends RecyclerView.Adapter<HireAdapter.ViewHolder>{


private ArrayList<HireItem> TeacherItemList;

private Context context;
private RecyclerItemClickListener itemClickListener;

public HireAdapter(Context c, ArrayList<HireItem> teacherItemList, RecyclerItemClickListener listener) {
    TeacherItemList = teacherItemList;
    context = c;
    itemClickListener = listener;
}

public static class ViewHolder extends RecyclerView.ViewHolder{

    public final TextView nameText, subjectText,levelText ,cityText;

    public ViewHolder(View itemView) {
        super(itemView);

         nameText = (TextView)itemView.findViewById(R.id.result_name);
         subjectText = (TextView)itemView.findViewById(R.id.result_subject);
         levelText = (TextView)itemView.findViewById(R.id.result_level);
         cityText = (TextView)itemView.findViewById(R.id.result_city);

    }
}


@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    View rowView = LayoutInflater.from(parent.getContext()).inflate(R.layout.list_item_teachers,parent,false);
    final ViewHolder viewHolder = new ViewHolder(rowView);
    rowView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            itemClickListener.onItemClick(viewHolder.getLayoutPosition());
        }
    });
    return viewHolder;
}

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

    holder.nameText.setText(TeacherItemList.get(position).getResult_name());
    holder.subjectText.setText(TeacherItemList.get(position).getResult_subject());
    holder.levelText.setText(TeacherItemList.get(position).getResult_level());
    holder.cityText.setText(TeacherItemList.get(position).getResult_city());

    //Here it is simply write onItemClick listener here
    holder.itemView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Context context = v.getContext();
            Intent intent = new Intent(context, ProfileTeaAdapter.class);

            context.startActivity(intent);
        }
    });


}


@Override
public void onAttachedToRecyclerView(RecyclerView recyclerView) {
    super.onAttachedToRecyclerView(recyclerView);
}

@Override
public int getItemCount() {
    return TeacherItemList.size();
}}

公共类HireAdapter扩展了RecyclerView.Adapter{
私有ArrayList TeacherItemList；
私人语境；
私有回收器项ClickListener项ClickListener；
公共HireAdapter（上下文c、ArrayList teacherItemList、RecyclerItemClickListener侦听器）{
TeacherItemList=TeacherItemList；
上下文=c；
itemClickListener=监听器；
}
公共静态类ViewHolder扩展了RecyclerView.ViewHolder{
公共最终文本查看名称文本、主题文本、级别文本、城市文本；
公共视图持有者（视图项视图）{
超级（项目视图）；
nameText=（TextView）itemView.findViewById（R.id.result\u name）；
subjectText=（TextView）itemView.findViewById（R.id.result\u subject）；
levelText=（TextView）itemView.findViewById（R.id.result\u level）；
cityText=（TextView）itemView.findViewById（R.id.result\u city）；
}
}
@凌驾
public ViewHolder onCreateViewHolder（视图组父级，int-viewType）{
View rowView=LayoutInflater.from（parent.getContext（））.flate（R.layout.list\u item\u教师，家长，false）；
最终视窗夹持器视窗夹持器=新视窗夹持器（行视图）；
rowView.setOnClickListener（新视图.OnClickListener（）{
@凌驾
公共void onClick（视图v）{
itemClickListener.onItemClick（viewHolder.getLayoutPosition（））；
}
});
返回视图持有者；
}
@凌驾
公共无效onBindViewHolder（最终视图持有人，最终整型位置）{
holder.nameText.setText（TeacherItemList.get（position.getResult_name（））；
holder.subjectText.setText（TeacherItemList.get（position.getResult_subject（））；
holder.levelText.setText（TeacherItemList.get（position.getResult_level（））；
holder.cityText.setText（TeacherItemList.get（position.getResult_city（））；
//这里只需在这里编写McClick侦听器
holder.itemView.setOnClickListener（新视图.OnClickListener（）{
@凌驾
公共void onClick（视图v）{
Context=v.getContext（）；
意向意向=新意向（上下文，ProfileTeaAdapter.class）；
背景。开始触觉（意图）；
}
});
}
@凌驾
附加ToRecyclerView（RecyclerView RecyclerView）上的公共无效{
super.onAttachedToRecyclerView（recyclerView）；
}
@凌驾
public int getItemCount（）{
返回TeacherItemList.size（）；
}}

在Search.java中，我在每个错误处都写下了注释。因为我不知道如何更正一些代码来使用HireAdapter和RecyclerItemClickListener，有人能解决这个错误吗

public class Search extends Fragment implements RecyclerItemClickListener {

private Context context;
private RecyclerView recyclerView;
private DatabaseReference databaseReference;
private FirebaseAuth firebaseAuth;
private List<HireItem> hireItem = new ArrayList<>();
HireAdapter mAdapter;
ImageView bt_search;
ProgressDialog progressDialog;
Spinner spinner_sort;

String key = "req_skill1";

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

    //Getting FireBase Instance
    firebaseAuth = FirebaseAuth.getInstance();
    databaseReference = FirebaseDatabase.getInstance().getReference("teachers");

    //Getting id of Views
    RecyclerView recyclerView = (RecyclerView) view.findViewById(R.id.rv_places);
    recyclerView.setAdapter(mAdapter);


    //
    bt_search = (ImageView)view.findViewById(R.id.bt_search);
    spinner_sort = (Spinner)view.findViewById(R.id.spinner_sort);
    setupSpinner();

    List<HireItem> hireItem = new ArrayList<>();
    mAdapter = new HireAdapter(getContext(),R.layout.list_item_teachers,hireItem); // error at (getContext(),R.layout.list_item_teachers,hireItem)

    bt_search.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {

            if(mAdapter != null){
                mAdapter.clear(); // error at .clear();
            }

            progressDialog = new ProgressDialog(getContext());
            progressDialog.setMessage("Searching Teachers");
            progressDialog.show();


            FirebaseDatabase.getInstance().getReference("teachers").orderByChild("subject").startAt(key).endAt(key + "~")
                    .addChildEventListener(new ChildEventListener() {
                        @Override
                        public void onChildAdded(DataSnapshot dataSnapshot, String s) {
                            Teachers child = dataSnapshot.getValue(Teachers.class);
                            HireItem hireItem = new HireItem(child.teaname, child.city, child.subject, child.level, child.sex,child.mobile, child.qualification, child.skill1, child.experince, child.salary,child.age);
                            mAdapter.add(hireItem);  // error at .add
                            progressDialog.dismiss();

                            if(mAdapter == null){
                                Toast.makeText(getContext(), "No Match Found", Toast.LENGTH_SHORT).show();
                            }
                        }

                        @Override
                        public void onChildChanged(DataSnapshot dataSnapshot, String s) {

                        }

                        @Override
                        public void onChildRemoved(DataSnapshot dataSnapshot) {

                        }
                        @Override
                        public void onChildMoved(DataSnapshot dataSnapshot, String s) {

                        }

                        @Override
                        public void onCancelled(DatabaseError databaseError) {

                        }
                    });

            if(mAdapter == null){
                Toast.makeText(getContext(), "No Match Found", Toast.LENGTH_SHORT).show();
            }
            else{
                recyclerView.setAdapter(mAdapter);  // error at recyclerView

            }

        }
    });
    return view;
}
private void setupSpinner(){
    ArrayAdapter adapter = ArrayAdapter.createFromResource(getContext(),R.array.array_teacher_sort,
            android.R.layout.simple_spinner_item);
    adapter.setDropDownViewResource(android.R.layout.simple_dropdown_item_1line);
    spinner_sort.setAdapter(adapter);
    spinner_sort.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
        @Override
        public void onItemSelected(AdapterView<?> adapterView, View view, int i, long l) {
            key = (String)adapterView.getItemAtPosition(i);
            if(key.equals(getString(R.string.sort_A))){
                key = "Math";
            }else if(key.equals(getString(R.string.sort_AA))){
                key = "computer";
            }
            else if(key.equals(getString(R.string.sort_AB))){
                key = "Biology";
            }

            else if(key.equals(getString(R.string.sort_AD))){
                key = "Physics";
            }
            else if(key.equals(getString(R.string.sort_AXX))){
                key = "Holy Quran";
            }
            else if(key.equals(getString(R.string.sort_AZ))){
                key = "Chysics";
            }
            else if(key.equals(getString(R.string.sort_AS))){
                key = "English";
            }
            else if(key.equals(getString(R.string.sort_AQ))){
                key = "Arabic";
            }
            else if(key.equals(getString(R.string.sort_ADD))){
                key = "Science";
            }
            else if(key.equals(getString(R.string.sort_AE))){
                key = "History";
            }
            else if(key.equals(getString(R.string.sort_AW))){
                key = "Geograpghy";
            }
            else if(key.equals(getString(R.string.sort_AR))){
                key = "Art education";
            }
            else if(key.equals(getString(R.string.sort_AT))){
                key = "Family education";
            }
            else if(key.equals(getString(R.string.sort_aae))){
                key = "Religion";
            }

        }
        @Override
        public void onNothingSelected(AdapterView<?> adapterView) {
        }

    });
}

@Override
public void onResume() {
    super.onResume();
    mAdapter.clear();  // error at .clear();
}

@Override
public void onItemClick(int position) {

} }

公共类搜索扩展片段实现RecyclerItemClickListener{
私人语境；
私人回收站；
私有数据库参考数据库参考；
私有FirebaseAuth FirebaseAuth；
private List hireItem=new ArrayList（）；
HireAdapter mAdapter；
ImageView bt_搜索；
进行对话进行对话；
微调器微调器_排序；
字符串key=“req_skill1”；
@可空
@凌驾
创建视图时的公共视图（LayoutFlater充气机、@Nullable ViewGroup容器、@Nullable Bundle savedInstanceState）{
视图=充气机。充气（R.布局。活动搜索，容器，错误）；
//获取FireBase实例
firebaseAuth=firebaseAuth.getInstance（）；
databaseReference=FirebaseDatabase.getInstance（）.getReference（“教师”）；
//获取视图id
RecyclerView RecyclerView=（RecyclerView）view.findViewById（R.id.rv_位置）；
recyclerView.setAdapter（mAdapter）；
//
bt_search=（ImageView）view.findviewbyd（R.id.bt_search）；
spinner\u sort=（spinner）view.findviewbyd（R.id.spinner\u sort）；
设置微调器（）；
List hireItem=new ArrayList（）；
mAdapter=new hiredapter（getContext（），R.layout.list_item_teachers，hireItem）；//在（getContext（），R.layout.list_item_teachers，hireItem）处出错
bt_search.setOnClickListener（新视图.OnClickListener（）{
@凌驾
公共void onClick（视图）{
如果（mAdapter！=null）{
mAdapter.clear（）；//在.clear（）处出错；
}
progressDialog=新建progressDialog（getContext（））；
progressDialog.setMessage（“搜索教师”）；
progressDialog.show（）；
FirebaseDatabase.getInstance（）.getReference（“教师”）.orderByChild（“主题”）.startAt（键）.endAt（键+“~”）
.addChildEventListener（新的ChildEventListener（）{
@凌驾
公共void onChildAdded（DataSnapshot DataSnapshot，字符串s）{
Teachers-child=dataSnapshot.getValue（Teachers.class）；
HireItem HireItem=新的HireItem（child.teName、child.city、child.subject、child.level、child.sex、child.mobile、child.quality、child.skill1、child.experience、child.salary、child.age）；
mAdapter.add（hireItem）；//在.add处出错
progressDialog.disclose（）；
if（mAdapter==null）{
Toast.makeText（getContext（），“未找到匹配项”，Toast.LENGTH_SHORT.show（）；
}
}
@凌驾
公共void onChildChanged（DataSnapshot DataSnapshot，字符串s）{
}
@凌驾
ChildRemoved上的公共void（DataSnapshot DataSnapshot）{
}
@凌驾
已移动ChildMoved上的公共void（DataSnapshot DataSnapshot，字符串s）{
}
@凌驾
已取消的公共void（DatabaseError DatabaseError）{
}
});
if（mAdapter==null）{
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    View rowView = LayoutInflater.from(parent.getContext()).inflate(R.layout.list_item_teachers,parent,false);
    final ViewHolder viewHolder = new ViewHolder(rowView);
    rowView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            itemClickListener.onItemClick(viewHolder.getLayoutPosition());
        }
    });
    return viewHolder;
}

@Override
public void onBindViewHolder(final ViewHolder holder, final int position) {
    holder.nameText.setText(TeacherItemList.get(position).getResult_name());
    holder.subjectText.setText(TeacherItemList.get(position).getResult_subject());
    holder.levelText.setText(TeacherItemList.get(position).getResult_level());
    holder.cityText.setText(TeacherItemList.get(position).getResult_city());

    //Here it is simply write onItemClick listener here
    holder.itemView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Context context = v.getContext();
            Intent intent = new Intent(context, ProfileTeaAdapter.class);

            context.startActivity(intent);
        }
    });
}