回收视图滚动导致值更改

Question

当我滚动视图，我的API和其他工作正常并且当我点击我的适配器按钮时数据发生变化时回收视图数据丢失焦点但是当我滚动我的recyclview数据时它丢失了我更改的数据并返回到前一个。

我的代码：

的活动：

  public void fetchNotification() {
    String Notification = "https://www.videobeaker.com/secure/assests/video-beaker-api/get-data.php?getPodiums=1";
    /*startAnim();*/
    StringRequest stringRequest = new StringRequest(Request.Method.GET, Notification, new Response.Listener<String>() {
        @Override
        public void onResponse(String response) {
            /*stopAnim();*/
          //  Log.e("podiums data", response);
            try {
                JSONObject jsonObject = new JSONObject(response);

                JSONArray jsonArray = jsonObject.getJSONArray("Podiums_data");
                for (int i = 0; i < jsonArray.length(); i++) {
                    JSONObject jobject = jsonArray.getJSONObject(i);
                    ComonPodium data = new ComonPodium();
                    data.setPodiumname(jobject.getString("podium_name"));
                    data.setPodium_description(jobject.getString("podium_description"));
                    data.setFollowers_data(jobject.getString("followers_data"));
                    data.setPodiumId(jobject.getString("podium_user_id"));
                   // data.setPodiumId(jobject.getString("podium_id"));
                    data.setPodium_cover_image(AppConstants.BASEIMG + jobject.getString("podium_cover_image"));
                    data.setPodium_image(AppConstants.BASEIMG + jobject.getString("podium_image"));
                    comonPodiums.add(data);
                }
                podiumAd.notifyDataSetChanged();
            } catch (JSONException e) {
                e.printStackTrace();
                showToast("No Record Found");
                //Toast.makeText(context,"No Record Found",Toast.LENGTH_SHORT).show();
            }

        }

    }, new Response.ErrorListener() {
        @Override
        public void onErrorResponse(VolleyError error) {
            // Toast.makeText(getContext(), "Network Error,Please wait", Toast.LENGTH_SHORT).show();

        }
    });

    RequestQueue requestQueue = Volley.newRequestQueue(context);
    requestQueue.add(stringRequest);

}

模特课程：

public class ComonPodium {

public String getPodiumname() {
    return podiumname;
}

public void setPodiumname(String podiumname) {
    this.podiumname = podiumname;
}

public String getPodium_description() {
    return podium_description;
}

public void setPodium_description(String podium_description) {
    this.podium_description = podium_description;
}

public String getPodium_image() {
    return podium_image;
}

public void setPodium_image(String podium_image) {
    this.podium_image = podium_image;
}

public String getPodium_cover_image() {
    return podium_cover_image;
}

public void setPodium_cover_image(String podium_cover_image) {
    this.podium_cover_image = podium_cover_image;
}

public String getFollowers_data() {
    return followers_data;
}

public void setFollowers_data(String followers_data) {
    this.followers_data = followers_data;
}

private String podiumname;
private String podium_description;
private String podium_image;
private String podium_cover_image;
private String followers_data;

public String getPodiumId() {
    return podiumId;
}

public void setPodiumId(String podiumId) {
    this.podiumId = podiumId;
}

private String podiumId;

}

适配器：

public class Podium_Ad extends RecyclerView.Adapter<Podium_Ad.ViewHolder> {
public static MyClickListener listener;
private List<ComonPodium> followingbean;
private Context context;

int poss;
String  podiumid1 ;

public Podium_Ad(Context context, List<ComonPodium> fproduct) {
    this.context = context;
    this.followingbean = fproduct;
}

@Override
public Podium_Ad.ViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
    View view = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.view_podiumitem, viewGroup, false);
    return new ViewHolder(view);
}

@Override
public void onBindViewHolder(final Podium_Ad.ViewHolder viewHolder, final int i) {
    viewHolder.setIsRecyclable(false);

    viewHolder.podumname.setText(followingbean.get(i).getPodiumname());
    viewHolder.discription_tv.setText(followingbean.get(i).getPodium_description());
    viewHolder.followersCoount_tv.setText(followingbean.get(i).getFollowers_data());
    Picasso.with(context).load(followingbean.get(i).getPodium_cover_image()).placeholder(R.drawable.boy).into(viewHolder.userImage);
    Picasso.with(context).load(followingbean.get(i).getPodium_image()).placeholder(R.drawable.boy).into(viewHolder.coverimage);




}



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

public void setMyClickListener(MyClickListener listener) {
    Podium_Ad.listener = listener;
}

public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
    private TextView podumname, discription_tv,followersCoount_tv, follow_tv;
    private ImageView userImage, coverimage;
    LinearLayout followunfollow;
    String unfollow, follower, followers_count;

    public ViewHolder(View view) {
        super(view);
        podumname = (TextView) view.findViewById(R.id.podiumname_txt);
        discription_tv = (TextView) view.findViewById(R.id.podumdiscripition_txt);
        followersCoount_tv = (TextView) view.findViewById(R.id.followercount_txt);
        userImage = (ImageView) view.findViewById(R.id.profile_image);
        coverimage = (ImageView) view.findViewById(R.id.coverImage);
        followunfollow = (LinearLayout)view.findViewById(R.id.userfoller);
        follow_tv = (TextView) view.findViewById(R.id.follow_btn);

        view.findViewById(R.id.profile_image).setOnClickListener(this);
        view.findViewById(R.id.podiumname_txt).setOnClickListener(this);
        view.findViewById(R.id.podumdiscripition_txt).setOnClickListener(this);
        view.findViewById(R.id.userfoller).setOnClickListener(this);





     followunfollow.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                int s = getAdapterPosition();
                podiumid1 = followingbean.get(s).getPodiumId();
                // poss = getAdapterPosition();
                // podiumid1 = followingbean.get(poss).getPodiumId();
                Log.e("id ===>>>",podiumid1);
                System.out.println("podiumid_podiumid"+podiumid1 +"::"+poss);
                follow();
               // notifyDataSetChanged();
            }
        });

    }

    @Override
    public void onClick(View view) {
        listener.onItemClick(view, followingbean.get(getPosition()));
    }


    public void follow() {
        final String followurl = "https://www.videobeaker.com/secure/assests/video-beaker-api/get-data.php?follow=1";

        System.out.println("podiumid_podiumid"+podiumid1 +"::"+poss);
        Log.e("followurl", followurl);
        StringRequest stringRequest = new StringRequest(Request.Method.POST, followurl, new Response.Listener<String>() {
            @Override
            public void onResponse(String response) {


                try {
                    JSONObject jsonObject = new JSONObject(response);

                    Log.e("follow_response", response);

                    follower = jsonObject.getString("response");
                    unfollow = jsonObject.getString("response");
                    followers_count = String.valueOf(jsonObject.getInt("total_follow_count"));

                    if (follower.equalsIgnoreCase("1")) {
                        follow_tv.setText("Unfollow");
                        followersCoount_tv.setText(followers_count);

                    } else if (unfollow.equalsIgnoreCase("2")) {


                        unfollow();

                    }


                } catch (JSONException e) {
                    e.printStackTrace();
                }

            }
        }, new Response.ErrorListener() {

            @Override
            public void onErrorResponse(VolleyError error) {
                VolleyLog.d("error", "Error: " + error.getMessage());

            }
        }) {

            @Override
            protected Map<String, String> getParams() {
                Map<String, String> params = new HashMap<>();
                params.put("login_user_id", AppController.getInstance().getKeyString(AppConstants.USERID));
                params.put("podium_id", podiumid1);
                params.put("timezone", "Asia/kolkata");
                Log.e("all_param,", String.valueOf(params));

                return params;
            }

        };


        RequestQueue requestQueue = Volley.newRequestQueue(context);
        requestQueue.add(stringRequest);


    }


    public void unfollow() {
        final String recentupload = "https://www.videobeaker.com/secure/assests/video-beaker-api/get-data.php?unfollow=1";

        System.out.println("podiumid_podiumid"+podiumid1);
        StringRequest stringRequest = new StringRequest(Request.Method.POST, recentupload, new Response.Listener<String>() {
            @Override
            public void onResponse(String response) {


                try {

                    JSONObject jsonObject = new JSONObject(response);
                    Log.e("unfollow", response);
                    unfollow = jsonObject.getString("response");
                    followers_count = String.valueOf(jsonObject.getInt("total_follow_count"));
                    //  followersCoount_tv.setText(followers_count);
                    if (unfollow.equalsIgnoreCase("1")) {
                        follow_tv.setText("Follow");
                        followersCoount_tv.setText(followers_count);


                    } else if (unfollow.equalsIgnoreCase("2")) {
                        follow();
                    }


                } catch (JSONException e) {
                    e.printStackTrace();
                }

            }
        }, new Response.ErrorListener() {

            @Override
            public void onErrorResponse(VolleyError error) {
                VolleyLog.d("error", "Error: " + error.getMessage());

            }
        }) {

            @Override
            protected Map<String, String> getParams() {
                Map<String, String> params = new HashMap<>();
                params.put("login_user_id", AppController.getInstance().getKeyString(AppConstants.USERID));
                params.put("podium_id",podiumid1);
                params.put("timezone", "Asia/kolkata");

                return params;
            }

        };


        RequestQueue requestQueue = Volley.newRequestQueue(context);
        requestQueue.add(stringRequest);


    }

}

}

我的xml：

<FrameLayout 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"
tools:context="geek.vediobeaker.fragment.Following_Fragment">

<android.support.v7.widget.RecyclerView
    android:id="@+id/notification_recycler"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginBottom="@dimen/_10sdp"
    android:minHeight="@dimen/_120sdp" />

有谁能说我如何正确获取我的scoll数据？

Answer 1

在onBindViewHolder方法中添加点击侦听器

 @Override
public void onBindViewHolder(final Podium_Ad.ViewHolder viewHolder, final int i) {
ComonPodium comomPodium = followingbean.get(i);
viewHolder.setIsRecyclable(false);

viewHolder.podumname.setText(comomPodium.getPodiumname());
viewHolder.discription_tv.setText(comomPodium.getPodium_description());
viewHolder.followersCoount_tv.setText(comomPodium.getFollowers_data());
Picasso.with(context).load(comomPodium.getPodium_cover_image()).placeholder(R.drawable.boy).into(viewHolder.userImage);
Picasso.with(context).load(comomPodium.getPodium_image()).placeholder(R.drawable.boy).into(viewHolder.coverimage);

viewHolder.followunfollow.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            int s = getAdapterPosition();
            podiumid1 = followingbean.get(s).getPodiumId();
            // poss = getAdapterPosition();
            // podiumid1 = followingbean.get(poss).getPodiumId();
            Log.e("id ===>>>",podiumid1);
            System.out.println("podiumid_podiumid"+podiumid1 +"::"+poss);
            follow(comomPodium);
        }
    });
 }

在您按照方法更新ComonPodium成功的API调用结果

public void follow(ComonPodium comonPodium) {
    final String followurl = "https://www.videobeaker.com/secure/assests/video-beaker-api/get-data.php?follow=1";

    System.out.println("podiumid_podiumid"+podiumid1 +"::"+poss);
    Log.e("followurl", followurl);
    StringRequest stringRequest = new StringRequest(Request.Method.POST, followurl, new Response.Listener<String>() {
        @Override
        public void onResponse(String response) {


            try {
                JSONObject jsonObject = new JSONObject(response);

                Log.e("follow_response", response);

                follower = jsonObject.getString("response");
                unfollow = jsonObject.getString("response");
                followers_count = String.valueOf(jsonObject.getInt("total_follow_count"));

                if (follower.equalsIgnoreCase("1")) {
                    follow_tv.setText("Unfollow");
            //Here you need to to update model class///
                     comonPodium.setFollowDate("your response data")
                    followersCoount_tv.setText(followers_count);

                } else if (unfollow.equalsIgnoreCase("2")) {


                    unfollow();

                }


            } catch (JSONException e) {
                e.printStackTrace();
            }

        }
    }, new Response.ErrorListener() {

        @Override
        public void onErrorResponse(VolleyError error) {
            VolleyLog.d("error", "Error: " + error.getMessage());

        }
    }) {

        @Override
        protected Map<String, String> getParams() {
            Map<String, String> params = new HashMap<>();
            params.put("login_user_id", AppController.getInstance().getKeyString(AppConstants.USERID));
            params.put("podium_id", podiumid1);
            params.put("timezone", "Asia/kolkata");
            Log.e("all_param,", String.valueOf(params));

            return params;
        }

    };


    RequestQueue requestQueue = Volley.newRequestQueue(context);
    requestQueue.add(stringRequest);


}

Answer 2

在适配器中添加此方法，调用podiumAd。 setDatalist（comonPodiums）并删除podiumAd.notifyDataSetChanged（）;

 public void setDatalist(List< ComonPodium > list) {

                followingbean = list;

                notifyDataSetChanged();

            }