Java 使用自定义适配器中的变量时出现问题

我正在使用列表视图并创建自定义适配器。每次点击按钮，我都会喜欢上一篇文章。正在声明的按钮与列表视图中的每个项相连接。我遇到了三个问题：

1） 当我点击like按钮时，列表下方的“随机”按钮也会被点击

2） 当我单击“喜欢”时，它会更新“喜欢”计数，但当我向下滚动出视图，然后向上滚动时，会重置“喜欢”计数

3） 当我点击like时，like计数会改变，现在当我在另一篇文章上点击like时，like计数会改变为我点击的第一个like按钮上的like计数

我已经在这上面停留了一段时间，非常感谢您的帮助

以下是适配器类的代码：

    class PostsAdapter extends ArrayAdapter<Posts> implements View.OnClickListener {
    //used to create views from xml
    private LayoutInflater layoutInflater;

    public PostsAdapter(Context context, int textViewResourceId, List<Posts> posts) {
        super(context, textViewResourceId, posts);
        layoutInflater = LayoutInflater.from(context);
    }
    //add to xml from dataset
    @Override
    // view convertview = recycled view
    public View getView(int position, View convertView, ViewGroup parent) {
        View view = convertView;
        Holder holder = null;
        Posts posts = getItem(position);

        //checks if recycled view is null, thewn creates new view, if not null, use same view
        if(view == null){
            view = layoutInflater.inflate(R.layout.activity_posts, null);

            Button like = (Button) view.findViewById(R.id.btnLike);
            TextView content = (TextView) view.findViewById(R.id.content);
            TextView user = (TextView) view.findViewById(R.id.user);
            TextView topic = (TextView) view.findViewById(R.id.topic);
            TextView date = (TextView) view.findViewById(R.id.date);
            TextView likes = (TextView) view.findViewById(R.id.likeCount);
            TextView hiddenId = (TextView) view.findViewById(R.id.hiddenID);

            holder = new Holder(content, user, topic, date, likes, hiddenId, like);

            view.setTag(holder);
            like.setTag(holder);
        }
        else{
            holder = (Holder) view.getTag();
        }
        holder.content.setText(posts.getContent());
        holder.user.setText(posts.getUser());
        holder.topic.setText(posts.getTopic());
        holder.date.setText(posts.getDate());
        holder.likes.setText(posts.getLikes());
        holder.hiddenId.setText(posts.getId());

        holder.like.setOnClickListener(this);

        return view;
    }

    @Override
    public void onClick(View v) {
        Button like = (Button) v;
        Holder holder = (Holder) v.getTag();
        Toast.makeText(DisplayPosts.this, "Button: " + like.getText(), Toast.LENGTH_LONG).show();

        createLike(holder.like, holder.hiddenId, holder.likes);
    }
}

static class Holder{
    public TextView content;
    public TextView user;
    public TextView topic;
    public TextView date;
    public TextView likes;
    public TextView hiddenId;
    public Button like;

    public Holder(TextView content, TextView user, TextView topic, TextView date, TextView likes, TextView hiddenId, Button like) {
        this.content = content;
        this.user = user;
        this.topic = topic;
        this.date = date;
        this.likes = likes;
        this.hiddenId = hiddenId;
        this.like = like;
    }
}

类PostsAdapter扩展了ArrayAdapter，实现了View.OnClickListener{
//用于从xml创建视图
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公共PostsAdapter（上下文上下文、int textViewResourceId、列表帖子）{
super（上下文、textViewResourceId、posts）；
layoutInflater=layoutInflater.from（上下文）；
}
//从数据集添加到xml
@凌驾
//视图转换视图=回收视图
公共视图getView（int位置、视图转换视图、视图组父视图）{
视图=转换视图；
Holder=null；
Posts Posts=getItem（position）；
//检查回收视图是否为空，WN将创建新视图，如果不为空，则使用相同的视图
如果（视图==null）{
视图=布局更平坦。充气（R.layout.activity\u posts，空）；
Button-like=（Button）view.findViewById（R.id.btnLike）；
TextView content=（TextView）view.findViewById（R.id.content）；
TextView用户=（TextView）view.findViewById（R.id.user）；
TextView topic=（TextView）view.findViewById（R.id.topic）；
TextView日期=（TextView）view.findViewById（R.id.date）；
TextView likes=（TextView）view.findViewById（R.id.likeCount）；
TextView hiddenId=（TextView）view.findViewById（R.id.hiddenId）；
holder=新的holder（内容、用户、主题、日期、喜欢的、隐藏的、喜欢的）；
视图.设置标签（支架）；
like.setTag（持有者）；
}
否则{
holder=（holder）view.getTag（）；
}
holder.content.setText（posts.getContent（））；
holder.user.setText（posts.getUser（））；
holder.topic.setText（posts.getTopic（））；
holder.date.setText（posts.getDate（））；
holder.likes.setText（posts.getLikes（））；
holder.hiddenId.setText（posts.getId（））；
holder.like.setOnClickListener（this）；
返回视图；
}
@凌驾
公共void onClick（视图v）{
按钮状=（按钮）v；
Holder Holder=（Holder）v.getTag（）；
Toast.makeText（DisplayPosts.this，“按钮：+like.getText（），Toast.LENGTH\u LONG.show（）；
createLike（holder.like，holder.hiddenId，holder.likes）；
}
}
静态类持有者{
公共文本查看内容；
公共文本视图用户；
公共文本视图主题；
公共文本查看日期；
公共文本视图；
公共文本视图隐藏；
公共按钮式；
公共持有者（文本视图内容、文本视图用户、文本视图主题、文本视图日期、文本视图类、文本视图隐藏ID、按钮类）{
this.content=内容；
this.user=用户；
this.topic=主题；
this.date=日期；
this.likes=喜欢；
this.hiddenId=hiddenId；
this.like=like；
}
}

下面是createLike方法：

    private void createLike(final Button like, final TextView hiddenid, final TextView likes){
    final String hid = hiddenid.getText().toString().trim();

    if(like.getText().toString().equalsIgnoreCase("like")){
        like.setText("UnLike");
        StringRequest stringRequest = new StringRequest(Request.Method.POST, Config.SERVER_ADDRESS + "LikePost.php",
                new Response.Listener<String>() {
                    @Override
                    public void onResponse(String response) {

                        JSONObject jsonObject = null;
                        try {
                            //json string to jsonobject
                            jsonObject = new JSONObject(response);
                            //get json sstring created in php and store to JSON Array
                            result2 = jsonObject.getJSONArray(Config.json_array_likes);
                            //get username from json array
                            likes.setText(getLikeCount(result2));
                        } catch (JSONException e) {
                            e.printStackTrace();
                        }
                    }
                },
                new Response.ErrorListener() {
                    @Override
                    public void onErrorResponse(VolleyError error) {
                    }
                }){
            @Override
            protected Map<String, String> getParams() throws AuthFailureError {

                // corresponding values.
                Map<String,String> hashMap = new HashMap<>();
                //maps specified string key, to specified string value
                hashMap.put(Config.hid, hid);
                return hashMap;
            }
        };

        //add string request to queue
        RequestQueue requestQueue = Volley.newRequestQueue(this);
        requestQueue.add(stringRequest);
    }
    else{
        like.setText("Like");
    }
}
private String getLikeCount(JSONArray jsonArray){
    String lc = null;
    for(int i = 0; i < jsonArray.length(); i++) {
        try {
            JSONObject json = jsonArray.getJSONObject(i);
            likeCount.add(json.getString(Config.getLike));
            lc = likeCount.get(0);
        } catch (JSONException e) {
        }
    }
    return lc;
}

private void createLike（最终按钮式、最终文本视图隐藏式、最终文本视图式）{
最后一个字符串hid=hiddenid.getText（）.toString（）.trim（）；
if（like.getText（）.toString（）.equalsIgnoreCase（“like”））{
like.setText（“不像”）；
StringRequest StringRequest=new StringRequest（Request.Method.POST，Config.SERVER_ADDRESS+“LikePost.php”，
新的Response.Listener（）{
@凌驾
公共void onResponse（字符串响应）{
JSONObject JSONObject=null；
试一试{
//json字符串到jsonobject
jsonObject=新的jsonObject（响应）；
//获取在php中创建的json字符串并存储到json数组
result2=jsonObject.getJSONArray（Config.json\u array\u）；
//从json数组获取用户名
likes.setText（getLikeCount（result2））；
}捕获（JSONException e）{
e、 printStackTrace（）；
}
}
},
新的Response.ErrorListener（）{
@凌驾
公共无效onErrorResponse（截击错误）{
}
}){
@凌驾
受保护的映射getParams（）引发AuthFailureError{
//相应的值。
Map hashMap=新hashMap（）；
//将指定的字符串键映射到指定的字符串值
put（Config.hid，hid）；
返回hashMap；
}
};
//将字符串请求添加到队列
RequestQueue RequestQueue=Volley.newRequestQueue（this）；
添加（stringRequest）；
}
否则{
like.setText（“like”）；
}
}
私有字符串getLikeCount（JSONArray JSONArray）{
字符串lc=null；
for（int i=0；i

我认为根本问题在于您在holder类上使用了静态修饰符，请删除该修饰符

holder.like.setOnClickListener(this);

holder.like.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                createLike(position,holder.like, holder.hiddenId, holder.likes);//Added one more parameter "position"
             }
);

                        @Override
                        public void onResponse(String response) {

                            JSONObject jsonObject = null;
                            try {
                                //json string to jsonobject
                                jsonObject = new JSONObject(response);
                                //get json sstring created in php and store to JSON Array
                                result2 = jsonObject.getJSONArray(Config.json_array_likes);
                                //get username from json array
                                likes.setText(getLikeCount(result2));

//Update like count here
posts.get(position).setLikeCount(); //The count which you want to update

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

    public class PostsAdapter extends ArrayAdapter<Posts>  {
    //used to create views from xml
    Context context;
    int textViewResourceId;
    ArrayList<Posts> mPosts = new ArrayList<Posts>();

    public PostsAdapter(Context context, int textViewResourceId, ArrayList<Posts> posts) {
        super(context, textViewResourceId, posts);
        this.textViewResourceId = textViewResourceId;
        this.context = context;
        this.mPosts = posts;
    }

    // view convertview = recycled view
    @Override
    public View getView(final int position, View convertView, ViewGroup parent) {
        View view = convertView;
        final Holder holder;
        //checks if recycled view is null, thewn creates new view, if not null, use same view
        if(view == null){
            LayoutInflater inflater = ((Activity) context).getLayoutInflater();
            view = inflater.inflate(textViewResourceId, parent, false);

            Button like = (Button) view.findViewById(R.id.btnLike);
            TextView content = (TextView) view.findViewById(R.id.content);
            TextView user = (TextView) view.findViewById(R.id.user);
            TextView topic = (TextView) view.findViewById(R.id.topic);
            TextView date = (TextView) view.findViewById(R.id.date);
            TextView likes = (TextView) view.findViewById(R.id.likeCount);
            TextView hiddenId = (TextView) view.findViewById(R.id.hiddenID);
            holder = new Holder(content, user, topic, date, likes, hiddenId, like);

            view.setTag(holder);
        }
        else{
            holder = (Holder) view.getTag();
        }

        Posts posts = mPosts.get(position);
        holder.content.setText(posts.getContent());
        holder.user.setText(posts.getUser());
        holder.topic.setText(posts.getTopic());
        holder.date.setText(posts.getDate());
        holder.likes.setText(posts.getLikes());
        holder.hiddenId.setText(posts.getId());

        holder.like.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                createLike(position, holder.like, holder.hiddenId, holder.likes);//Added one more parameter "position"
            }
        });

        return view;
    }

    private void createLike(final int position, final Button like, final TextView hiddenid, final TextView likes){
        final String hid = hiddenid.getText().toString().trim();

        if(like.getText().toString().equalsIgnoreCase("like")){
            like.setText("UnLike");
            StringRequest stringRequest = new StringRequest(Request.Method.POST, Config.SERVER_ADDRESS + "LikePost.php",
                    new Response.Listener<String>() {
                        @Override
                        public void onResponse(String response) {

                            JSONObject jsonObject = null;
                            try {
                                //counter
                                n+=1;

                                //json string to jsonobject
                                jsonObject = new JSONObject(response);
                                //get json sstring created in php and store to JSON Array
                                result2 = jsonObject.getJSONArray(Config.json_array_likes);
                                //get username from json array
                                String likestring = getLikeCount(result2);
                                String likenum = mPosts.get(position).getLikes(likestring);
                                likes.setText(likenum);

                            } catch (JSONException e) {
                                e.printStackTrace();
                            }
                        }
                    },
                    new Response.ErrorListener() {
                        @Override
                        public void onErrorResponse(VolleyError error) {
                        }
                    }){
                @Override
                protected Map<String, String> getParams() throws AuthFailureError {

                    // corresponding values.
                    Map<String,String> hashMap = new HashMap<>();
                    //maps specified string key, to specified string value
                    hashMap.put(Config.hid, hid);
                    return hashMap;
                }
            };

            //add string request to queue
            RequestQueue requestQueue = Volley.newRequestQueue(DisplayPosts.this);
            requestQueue.add(stringRequest);
        }
        else{
            like.setText("Like");
        }
    }
    private String getLikeCount(JSONArray jsonArray){
        System.out.println("JSON: " + jsonArray);
        String lc = null;
        for(int i = 0; i < jsonArray.length(); i++) {
            try {
                JSONObject json = jsonArray.getJSONObject(i);
                likeCount.add(json.getString(Config.getLike));
                System.out.println("i: " + i);
                lc = likeCount.get(n - 1);
            } catch (JSONException e) {
            }
        }
        System.out.println("LC: " + lc);
        return lc;
    }
     class Holder{
        public TextView content;
        public TextView user;
        public TextView topic;
        public TextView date;
        public TextView likes;
        public TextView hiddenId;
        public Button like;

        public Holder(TextView content, TextView user, TextView topic, TextView date, TextView likes, TextView hiddenId, Button like) {
            this.content = content;
            this.user = user;
            this.topic = topic;
            this.date = date;
            this.likes = likes;
            this.hiddenId = hiddenId;
            this.like = like;
        }
    }
}