Java RecyclerView已拒绝向NextActivity发送数据

这是我的适配器类

public class NtindaCinemaAdapter  extends    RecyclerView.Adapter<NtindaCinemaViewHolders>{
    private   String url="http://10.0.2.2/UgandaEntertainment/Ntinda/NtindaPics/";
    private List<ItemObjects> itemList = null;
    private Context context;


    private ArrayList<ItemObjects> arraylist;
    public NtindaCinemaAdapter(Context context, List<ItemObjects> itemList) {
        this.itemList = itemList;
        this.context = context;
    }

    @Override
    public NtindaCinemaViewHolders onCreateViewHolder(ViewGroup parent, int viewType) {

        View layoutView = LayoutInflater.from(parent.getContext()).inflate(R.layout.ntinda_cinema_list, parent,false);
        NtindaCinemaViewHolders rcv = new NtindaCinemaViewHolders(layoutView,context);
        return rcv;
    }

    @Override
    public void onBindViewHolder(NtindaCinemaViewHolders holder, int position) {
        ItemObjects feedItem = itemList.get(position);
              ViewGroup parent;
        //Download image using picasso library

        Picasso.with(context).load(url+feedItem.getPhoto())
                .error(R.drawable.placeholder).
                resize(500,500)
                .placeholder(R.drawable.placeholder)

                .into(holder.moviepic);

        holder.moviename.setText(itemList.get(position).getMovieName());
    }

    @Override
    public int getItemCount() {
        return (null != itemList ? itemList.size() : 0);
    }
}

这是我的模型课

package oerrride.we.huzykamz.ugentapp;

public class ItemObjects {
    private String CinemaName;
    private String CinemaxPhoto;
    private String contact;
    private String longitude;
    private String latitude;
    private String MovieName;
    private String Synopsis;
    private String Others;
    private String photo;
    private String Monday;
    private String Tuesday;
    private String Wednesday;
    private String Thursday;
    private String Friday;
    private String Saturday;
    private String Sunday;
    private String ActorsName;
    private String ActorsPhoto;


    public String getCinemaName() {
        return CinemaName;
    }

    public void setCinemaName(String cinemaName) {
        CinemaName = cinemaName;
    }

    public String getCinemaxPhoto() {
        return CinemaxPhoto;
    }

    public void setCinemaxPhoto(String cinemaxPhoto) {
        CinemaxPhoto = cinemaxPhoto;
    }

    public String getContact() {
        return contact;
    }

    public void setContact(String contact) {
        this.contact = contact;
    }

    public String getLongitude() {
        return longitude;
    }

    public void setLongitude(String longitude) {
        this.longitude = longitude;
    }

    public String getLatitude() {
        return latitude;
    }

    public void setLatitude(String latitude) {
        this.latitude = latitude;
    }

    public String getMovieName() {
        return MovieName;
    }

    public void setMovieName(String movieName) {
        MovieName = movieName;
    }

    public String getSynopsis() {
        return Synopsis;
    }

    public void setSynopsis(String synopsis) {
        Synopsis = synopsis;
    }

    public String getOthers() {
        return Others;
    }

    public void setOthers(String others) {
        Others = others;
    }

    public String getPhoto() {
        return photo;
    }

    public void setPhoto(String photo) {
        this.photo = photo;
    }

    public String getMonday() {
        return Monday;
    }

    public void setMonday(String monday) {
        Monday = monday;
    }

    public String getTuesday() {
        return Tuesday;
    }

    public void setTuesday(String tuesday) {
        Tuesday = tuesday;
    }

    public String getWednesday() {
        return Wednesday;
    }

    public void setWednesday(String wednesday) {
        Wednesday = wednesday;
    }

    public String getThursday() {
        return Thursday;
    }

    public void setThursday(String thursday) {
        Thursday = thursday;
    }

    public String getFriday() {
        return Friday;
    }

    public void setFriday(String friday) {
        Friday = friday;
    }

    public String getSaturday() {
        return Saturday;
    }

    public void setSaturday(String saturday) {
        Saturday = saturday;
    }

    public String getSunday() {
        return Sunday;
    }

    public void setSunday(String sunday) {
        Sunday = sunday;
    }

    public String getActorsName() {
        return ActorsName;
    }

    public void setActorsName(String actorsName) {
        ActorsName = actorsName;
    }

    public String getActorsPhoto() {
        return ActorsPhoto;
    }

    public void setActorsPhoto(String actorsPhoto) {
        ActorsPhoto = actorsPhoto;
    }
}

这是它显示的错误消息

 08-02 11:49:12.123 1775-1775/? E/AndroidRuntime: FATAL EXCEPTION: main
 Process: oerrride.we.huzykamz.ugentapp, PID: 1775
 java.lang.NullPointerException
     at oerrride.we.huzykamz.ugentapp.NtindaCinemaViewHolders$1.onClick(NtindaCinemaViewHolders.java:52)
     at android.view.View.performClick(View.java:4438)
     at android.view.View$PerformClick.run(View.java:18422)
     at android.os.Handler.handleCallback(Handler.java:733)
     at android.os.Handler.dispatchMessage(Handler.java:95)
     at android.os.Looper.loop(Looper.java:136)
     at android.app.ActivityThread.main(ActivityThread.java:5001)
     at java.lang.reflect.Method.invokeNative(Native Method)
     at java.lang.reflect.Method.invoke(Method.java:515)
     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
     at dalvik.system.NativeStart.main(Native Method)

---

我认为应该将click侦听器移动到适配器中，这样就可以将对象从arraylist中取出

你的问题是

v.getTag（）返回null，因为视图没有为其设置标记

@Override
public void onBindViewHolder(NtindaCinemaViewHolders holder, int position) {
    final ItemObjects feedItem = itemList.get(position);

    holder.root.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Intent intent = new Intent(NtindaCinemaAdapter.this.context, MovieScrollingActivity.class);
            intent.putExtra(NtindaCinemaViewHolders.KEY_SYNOPSIS, feedItem.getSynopsis());

            c.startActivity(intent);
        }
    });

    //Download image using picasso library
    Picasso.with(context).load(url+feedItem.getPhoto())
            .error(R.drawable.placeholder).
            resize(500,500)
            .placeholder(R.drawable.placeholder)
            .into(holder.moviepic);

    holder.moviename.setText(feedItem.getMovieName());
}

尝试在开始活动之前添加此行

intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

v.getTag（）--它可以为空。请调试并检查它您的意思是什么，因为我认为getTag（）是一个inbulit库，请尝试让我明白，因为我是一个初学者。
Object getTag（）
--返回存储在此视图中作为标记的对象，如果未设置，则返回null。你从来没有调用过
setTag
，那么为什么你希望
getTag（）
不返回null呢？那么我应该如何首先设置setTag（），来完成所有这一切，请板球，指导我总体来说，我想你的点击监听器放错地方了，因为你需要使用列表对象来获取项目<代码>ItemObjects feedItem=itemList1.get（位置）你能解释为什么会修复NPE吗？非常感谢cricket_007的解决方案，现在问题在根上，我仍然有根上的问题，我应该如何清除根，因为我已经声明了View root；但是仍然没有看到，我正在尝试按照您在设置clickListener时给出的步骤进行操作？谢谢。我知道您需要使用
holder.root
来获取视图。我不确定它是否仍然为空。@huxaiphaerIdris它应该按照我写的方式工作，但您可以使
成为公共视图根目录在Holder类中，如果没有。我不能使用适配器类，因为onBindViewHolder在该类中，请帮助我，因为我也尝试过，public View root；在Adapter类中，但它是不可访问的，难道没有任何访问它的方法吗？它已经解决了，问题是，我忘记嵌套ViewHolder类了，但是您最初的答案是正确的，谢谢
@Override
public void onBindViewHolder(NtindaCinemaViewHolders holder, int position) {
    final ItemObjects feedItem = itemList.get(position);

    holder.root.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Intent intent = new Intent(NtindaCinemaAdapter.this.context, MovieScrollingActivity.class);
            intent.putExtra(NtindaCinemaViewHolders.KEY_SYNOPSIS, feedItem.getSynopsis());

            c.startActivity(intent);
        }
    });

    //Download image using picasso library
    Picasso.with(context).load(url+feedItem.getPhoto())
            .error(R.drawable.placeholder).
            resize(500,500)
            .placeholder(R.drawable.placeholder)
            .into(holder.moviepic);

    holder.moviename.setText(feedItem.getMovieName());
}

intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);