Android:RecyclerView:未连接适配器；跳过布局

当显示RecyclerView列表时，我不断收到错误“RecyclerView:未连接适配器；跳过布局”。我有3个选项卡，其中一个选项卡有一个从SQLite数据库填充的RecyclerView列表。我没有得到任何崩溃，数据在视图中正确显示，但我仍然得到这个错误

我认为这只是一个警告，因为数据已经正确就位，但当我尝试onClick时，它不起作用，我确信这与此错误有关

我知道这个问题以前被问过很多次，但我检查了大部分问题，没有一个对我有用

这是我的片段：

public class RecentsFragment extends Fragment {
    DatabaseHelper helper;
    List<MyPojo> dbList;
    RecyclerView mRecyclerView;
    private MyGridAdapter mAdapter;
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

        final View view = inflater.inflate(R.layout.my_recents_list, container, false);
        mRecyclerView = (RecyclerView) view.findViewById(R.id.recyclerView);
        mRecyclerView.setLayoutManager(new GridLayoutManager(getActivity(), 2));
        mRecyclerView.setHasFixedSize(true);
        return view;
    }
    @Override
    public void onViewCreated(View view, Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);

        setHasOptionsMenu(true);
        dbList = new ArrayList<MyPojo>();

        dbList = getCat(); // getCat returns array list from sqlite database

        mAdapter = new MyGridAdapter(dbList);
        mRecyclerView.setAdapter(mAdapter);

    }
}

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

    static List<MyPojo> dbList;
    static Context context;

    MyGridAdapter(Context context, List<MyPojo> dbList){
        this.dbList = new ArrayList<MyPojo>();
        this.context = context;
        this.dbList = dbList;

    }


    MyGridAdapter(List<MyPojo> dbList){
        this.dbList = new ArrayList<MyPojo>();
        this.dbList = dbList;

    }

    @Override
    public MyGridAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {

        View itemLayoutView = LayoutInflater.from(parent.getContext()).inflate(
                R.layout.categories_item, null);

        ViewHolder viewHolder = new ViewHolder(itemLayoutView);
        return viewHolder;
    }

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

        holder.title.setText(dbList.get(position).getCat());
    }

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

    public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {

        public TextView title;
        public LinearLayout placeHolder;
        ImageView image;

        public ViewHolder(View itemLayoutView) {
            super(itemLayoutView);
            title = (TextView) itemLayoutView.findViewById(R.id.placeName);

        }

        @Override
        public void onClick(View v) {
            Intent intent = new Intent(context, DetailsActivity.class);

            Bundle extras = new Bundle();
            extras.putInt("catid", dbList.get(getAdapterPosition()).getCatid());
            intent.putExtras(extras);

            context.startActivity(intent);

        }
    }
}

公共类RecentsFragment扩展片段{
数据库助手；
列表数据库列表；
回收视图mRecyclerView；
私有MyGridAdapter mAdapter；
@凌驾
CreateView上的公共视图（布局、充气机、视图组容器、捆绑包保存状态）{
最终视图=充气机。充气（R.layout.my\u recents\u list，container，false）；
mRecyclerView=（RecyclerView）view.findviewbyd（R.id.RecyclerView）；
setLayoutManager（新的GridLayoutManager（getActivity（），2））；
mRecyclerView.setHasFixedSize（true）；
返回视图；
}
@凌驾
已创建视图上的公共void（视图，捆绑保存状态）{
super.onViewCreated（视图，savedInstanceState）；
设置选项菜单（真）；
dbList=newarraylist（）；
dbList=getCat（）；//getCat从sqlite数据库返回数组列表
mAdapter=newmygridadapter（dbList）；
mRecyclerView.setAdapter（mAdapter）；
}
}

我的适配器：

public class RecentsFragment extends Fragment {
    DatabaseHelper helper;
    List<MyPojo> dbList;
    RecyclerView mRecyclerView;
    private MyGridAdapter mAdapter;
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

        final View view = inflater.inflate(R.layout.my_recents_list, container, false);
        mRecyclerView = (RecyclerView) view.findViewById(R.id.recyclerView);
        mRecyclerView.setLayoutManager(new GridLayoutManager(getActivity(), 2));
        mRecyclerView.setHasFixedSize(true);
        return view;
    }
    @Override
    public void onViewCreated(View view, Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);

        setHasOptionsMenu(true);
        dbList = new ArrayList<MyPojo>();

        dbList = getCat(); // getCat returns array list from sqlite database

        mAdapter = new MyGridAdapter(dbList);
        mRecyclerView.setAdapter(mAdapter);

    }
}

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

    static List<MyPojo> dbList;
    static Context context;

    MyGridAdapter(Context context, List<MyPojo> dbList){
        this.dbList = new ArrayList<MyPojo>();
        this.context = context;
        this.dbList = dbList;

    }


    MyGridAdapter(List<MyPojo> dbList){
        this.dbList = new ArrayList<MyPojo>();
        this.dbList = dbList;

    }

    @Override
    public MyGridAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {

        View itemLayoutView = LayoutInflater.from(parent.getContext()).inflate(
                R.layout.categories_item, null);

        ViewHolder viewHolder = new ViewHolder(itemLayoutView);
        return viewHolder;
    }

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

        holder.title.setText(dbList.get(position).getCat());
    }

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

    public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {

        public TextView title;
        public LinearLayout placeHolder;
        ImageView image;

        public ViewHolder(View itemLayoutView) {
            super(itemLayoutView);
            title = (TextView) itemLayoutView.findViewById(R.id.placeName);

        }

        @Override
        public void onClick(View v) {
            Intent intent = new Intent(context, DetailsActivity.class);

            Bundle extras = new Bundle();
            extras.putInt("catid", dbList.get(getAdapterPosition()).getCatid());
            intent.putExtras(extras);

            context.startActivity(intent);

        }
    }
}

公共类MyGridAdapter扩展了RecyclerView.Adapter{ 静态列表dbList； 静态语境； MyGridAdapter（上下文上下文，列表dbList）{ this.dbList=new ArrayList（）； this.context=上下文； this.dbList=dbList； } MyGridAdapter（列表dbList）{ this.dbList=new ArrayList（）； this.dbList=dbList； } @凌驾 public MyGridAdapter.ViewHolder onCreateViewHolder（视图组父级，int-viewType）{ View itemLayoutView=LayoutFlater.from（parent.getContext（））.inflate( R.layout.categories\u项，空）； ViewHolder ViewHolder=新的ViewHolder（itemLayoutView）； 返回视图持有者； } @凌驾 public void onBindViewHolder（最终MyGridAdapter.ViewHolder，int位置）{ holder.title.setText（dbList.get（position.getCat（））； } @凌驾 public int getItemCount（）{ 返回dbList.size（）； } 公共类ViewHolder扩展了RecyclerView.ViewHolder实现了View.OnClickListener{ 公共文本视图标题； 公共线路布局占位符； 图像视图图像； 公共视图持有者（视图项布局视图）{ 超级（itemLayoutView）； title=（TextView）itemLayoutView.findViewById（R.id.placeName）； } @凌驾 公共void onClick（视图v）{ 意向意向=新意向（上下文、DetailsActivity.class）； Bundle extras=新Bundle（）； putInt（“catid”，dbList.get（getAdapterPosition（））.getCatid（））； 意图.临时演员（临时演员）； 背景。开始触觉（意图）； } } } 提前谢谢

更新：my\u recents\u list.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".RecentsFragment">


    <android.support.v7.widget.RecyclerView
        android:id="@+id/recyclerView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="#f8f8f8"
        android:divider="@null"
        android:listSelector="@android:color/transparent"/>

</LinearLayout>

---

要避免此错误，请避免在CreateView方法中执行findViewById，而是在onViewCreated中执行

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

    return inflater.inflate(R.layout.my_recents_list, container, false);
}

@Override
public void onViewCreated(View view, Bundle savedInstanceState) {
    super.onViewCreated(view, savedInstanceState);

    mRecyclerView = (RecyclerView) view.findViewById(R.id.recyclerView);
    mRecyclerView.setLayoutManager(new GridLayoutManager(getActivity(), 2));
    mRecyclerView.setHasFixedSize(true);

    setHasOptionsMenu(true);
    dbList = new ArrayList<MyPojo>();

    dbList = getCat(); // getCat returns array list from sqlite database

    mAdapter = new MyGridAdapter(getActivity(), dbList);
    mRecyclerView.setAdapter(mAdapter);

}

@覆盖
CreateView上的公共视图（布局、充气机、视图组容器、捆绑包保存状态）{
返回充气机。充气（R.layout.my\u recents\u list，container，false）；
}
@凌驾
已创建视图上的公共void（视图，捆绑保存状态）{
super.onViewCreated（视图，savedInstanceState）；
mRecyclerView=（RecyclerView）view.findviewbyd（R.id.RecyclerView）；
setLayoutManager（新的GridLayoutManager（getActivity（），2））；
mRecyclerView.setHasFixedSize（true）；
设置选项菜单（真）；
dbList=newarraylist（）；
dbList=getCat（）；//getCat从sqlite数据库返回数组列表
mAdapter=新的MyGridAdapter（getActivity（），dbList）；
mRecyclerView.setAdapter（mAdapter）；
}

编辑

您的适配器应该如下所示：

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

    private List<MyPojo> dbList;
    private Context context;

    MyGridAdapter(Context context, List<MyPojo> dbList) {
        this.dbList = new ArrayList<MyPojo>(dbList);
        this.context = context;
    }

    @Override
    public MyGridAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        // Note that the inflate method takes the layout to inflate, the parent to measure 
        // the layout and the third parameters is false so only this view will handle events like click event
        View itemLayoutView = LayoutInflater.from(parent.getContext()).inflate(R.layout.categories_item, parent, false);

        return new ViewHolder(itemLayoutView);
    }

    @Override
    public void onBindViewHolder(final MyGridAdapter.ViewHolder holder, final int position) {
        MyPojo myPojo = dbList.get(position);
        holder.title.setText(myPojo.getCat());
        //You can register the click listener to the textview (or the whole item if you put it into the holder)
        holder.title.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                Intent intent = new Intent(context, DetailsActivity.class);

            Bundle extras = new Bundle();
            extras.putInt("catid", dbList.get(position).getCatid());
            intent.putExtras(extras);

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

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

    //The class is static to avoid leaks from a non-static nested class
    public static class ViewHolder extends RecyclerView.ViewHolder {

        public TextView title;

        public ViewHolder(View itemLayoutView) {
            super(itemLayoutView);
            title = (TextView) itemLayoutView.findViewById(R.id.placeName);

        }
    }
}

公共类MyGridAdapter扩展了RecyclerView.Adapter{ 私人名单； 私人语境； MyGridAdapter（上下文上下文，列表dbList）{ this.dbList=newarraylist（dbList）； this.context=上下文； } @凌驾 public MyGridAdapter.ViewHolder onCreateViewHolder（视图组父级，int-viewType）{ //请注意，充气方法采用要充气的布局和要测量的父级 //布局和第三个参数为false，因此只有此视图将处理诸如click event之类的事件 View itemLayoutView=LayoutFlater.from（parent.getContext（））。充气（R.layout.categories_item，parent，false）； 返回新的ViewHolder（itemLayoutView）； } @凌驾 public void onBindViewHolder（最终MyGridAdapter.ViewHolder，最终int位置）{ MyPojo MyPojo=dbList.get（位置）； holder.title.setText（myPojo.getCat（））； //您可以将click listener注册到textview（或者如果将整个项目放入支架中，则注册整个项目） holder.title.setOnClickListener（新视图.OnClickListener（）{ @凌驾 公共void onClick（视图v）{ 意向意向=新意向（上下文、DetailsActivity.class）； Bundle extras=新Bundle（）； putInt（“catid”，dbList.get（position.getCatid（））； 意图.临时演员（临时演员）； 背景。开始触觉（意图）； } }); } @凌驾 public int getItemCount（）{ 返回