如何在回收站视图中使用getTag()和setTag() [英] how to use getTag() and setTag() in recycler view

问题描述

我正在使用RecyclerView custum适配器，其中数据是从getter和setter方法获取的，并且superHero.getStatus()存在一个问题，即，如果该位置上有删除"，则所有视图可见性将为View.GONE否则，所有视图将显示在该项目上.有时它无法按以下代码条件工作.另一个问题是，当我单击按钮时，它会影响另一个视图.请检查以下代码.并告诉我该怎么做才能改善它.我应该使用getTag()和setTag()方法解决此问题吗?

I am using RecyclerView custum adapter where data is fetching from getter and setter method and there is a one issue with superHero.getStatus() i.e if there is "deleted" on that position then all the view visibility will be View.GONE otherwise all views will be show on that item. Sometime it's not working as below code condition. And another issue is when I click on button then it's effects on another views. Please check below code. And tell me what should I do for improve it. Should I used getTag() and setTag() method to solve this issue?

   public class CardAdapter  extends RecyclerView.Adapter<CardAdapter.ViewHolder> {
private static final String url1 = "************************.php";

private static final String KEY_MATRI_ID_TO="matriID_to";
private static final String KEY_MATRI_ID_BY="matriID_by";

SessionManager session;
public String matri_id_to, matri_id_by, str_gender;
String str_status,str_EI;


//Imageloader to load image
private ImageLoader imageLoader;
private Context context;

//List to store all superheroes
List<SuperHero> superHeroes;

//Constructor of this class
public CardAdapter(List<SuperHero> superHeroes, Context context){
    super();
    //Getting all superheroes
    this.superHeroes = superHeroes;
    this.context = context;
}

@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    View v = LayoutInflater.from(parent.getContext())
            .inflate(R.layout.superheroes_list_shortlist_me, parent, false);
    // Session class instance
    session = new SessionManager(context);
    session.checkLogin();
    // get user data from session
    HashMap<String, String> user = session.getUserDetails();
    matri_id_by = user.get(SessionManager.KEY_EMAIL);
    str_gender = user.get(SessionManager.KEY_GENDER);
    ViewHolder viewHolder = new ViewHolder(v);
    return viewHolder;
}

@Override
public void onBindViewHolder(final ViewHolder holder, final int position) {
    //Getting the particular item from the list
    final SuperHero superHero =  superHeroes.get(position);
    holder.textViewId.setText(superHero.getMglId());

    str_status = superHero.getStatus();
    if(str_status.equalsIgnoreCase("deleted"))
    {
        holder.tvCommunity.setText("This profile has been deleted");
        holder.tvCommunity.setTextColor(Color.RED);
        holder.Community.setVisibility(View.GONE);
        holder.AgeHeight.setVisibility(View.GONE);
        holder.Occupation.setVisibility(View.GONE);
        holder.Income.setVisibility(View.GONE);
        holder.shortlist_on.setVisibility(View.GONE);
        holder.imageView.setVisibility(View.GONE);
        holder.tvAgeHeight.setVisibility(View.GONE);
        holder.tvIncome.setVisibility(View.GONE);
        holder.tvShortlistOn.setVisibility(View.GONE);
        holder.tvOccupation.setVisibility(View.GONE);
        holder.btnEI.setVisibility(View.GONE);
        holder.btnViewProfile.setVisibility(View.GONE);
    }
    else
    {
        holder.AgeHeight.setText(superHero.getAge()+" / "+superHero.getAgeHeight());
        holder.Community.setText(superHero.getCommunity()+" / "+superHero.getCaste());
        holder.Occupation.setText(superHero.getOccupation());
        holder.Income.setText(superHero.getIncome());
        holder.shortlist_on.setText(superHero.getShortlisted_on());
        holder.btnEI.setText(superHero.getExpress_Intrest());
        //Loading image from url
        imageLoader = CustomVolleyRequest.getInstance(context).getImageLoader();
        imageLoader.get(superHero.getImageUrl(), ImageLoader.getImageListener(holder.imageView, R.drawable.image, android.R.drawable.ic_dialog_alert));
        holder.imageView.setImageUrl(superHero.getImageUrl(), imageLoader);

    }


    str_EI = superHero.getExpress_Intrest();
    if(str_EI.toString().equalsIgnoreCase("Accepted")) {
        holder.btnEI.setText(str_EI);
        holder.btnEI.setBackgroundColor(Color.parseColor("#FF045B49"));
        holder.btnEI.setEnabled(false);
    }
    else if(str_EI.toString().equalsIgnoreCase("Reject")){
        holder.btnEI.setText(str_EI);
        holder.btnEI.setBackgroundColor(Color.parseColor("#FF045B49"));
        holder.btnEI.setEnabled(false);
    }
    else if(str_EI.toString().equalsIgnoreCase("Declined")){
        holder.btnEI.setText(str_EI);
        holder.btnEI.setBackgroundColor(Color.parseColor("#FF045B49"));
        holder.btnEI.setEnabled(false);
    }
    else if(str_EI.toString().equalsIgnoreCase("Pending..")){
        holder.btnEI.setText(str_EI);
        holder.btnEI.setBackgroundColor(Color.parseColor("#FF045B49"));
        holder.btnEI.setEnabled(false);
    }
    else
    {
        holder.btnEI.setText(str_EI);
    }


    holder.btnViewProfile.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Intent n = new Intent(holder.itemView.getContext(),BlankActivity.class);
            String str_id = holder.textViewId.getText().toString();
            n.putExtra("ID",str_id);
            holder.itemView.getContext().startActivity(n);
        }
    });


    holder.btnEI.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            superHero.setExpress_Intrest("Wait...");
            holder.btnEI.setText(superHero.getExpress_Intrest());
            matri_id_to = superHero.getMglId();
            holder.expressInterest(position);
        }
    });

}

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

class ViewHolder extends RecyclerView.ViewHolder{
    //Views
    public NetworkImageView imageView;
    public TextView textViewId;
    public TextView AgeHeight,tvAgeHeight;
    public TextView Community, tvCommunity;
    public TextView Occupation, tvOccupation;
    public TextView Income, tvIncome;
    public TextView shortlist_on, tvShortlistOn;
    public Button btnViewProfile;
    public Button btnEI;

    //Initializing Views
    public ViewHolder(final View itemView) {
        super(itemView);
        imageView = (NetworkImageView) itemView.findViewById(R.id.imageViewHero);
        textViewId = (TextView) itemView.findViewById(R.id.textViewId);
        tvAgeHeight = (TextView) itemView.findViewById(R.id.tvAgeHeight);
        AgeHeight = (TextView) itemView.findViewById(R.id.AgeHeight);
        tvCommunity = (TextView) itemView.findViewById(R.id.tvCommunity);
        Community = (TextView) itemView.findViewById(R.id.Community);
        tvOccupation = (TextView) itemView.findViewById(R.id.tvOccupation);
        Occupation = (TextView) itemView.findViewById(R.id.Occupation);
        tvIncome = (TextView) itemView.findViewById(R.id.tvIncome);
        Income = (TextView) itemView.findViewById(R.id.Income);
        tvShortlistOn = (TextView) itemView.findViewById(R.id.tvShortlistOn);
        shortlist_on = (TextView) itemView.findViewById(R.id.shortlistOn);
        btnViewProfile = (Button) itemView.findViewById(R.id.viewProfile);
        btnEI = (Button) itemView.findViewById(R.id.sendEI);
    }

    public void expressInterest(final int position) {
        StringRequest stringRequest1 = new StringRequest(Request.Method.POST, url1, new Response.Listener<String>() {
            @Override
            public void onResponse(String response) {
                if(response.trim().equalsIgnoreCase("success")) {
                    superHeroes.get(position).setExpress_Intrest("Pending..");
                    notifyDataSetChanged();
                }
            }
        },
                new Response.ErrorListener() {
                    @Override
                    public void onErrorResponse(VolleyError error) {
                        Toast.makeText(context, error.toString(), Toast.LENGTH_LONG).show();
                    }
                }) {
            @Override
            protected Map<String, String> getParams() {
                Map<String, String> params = new HashMap<String, String>();
                params.put(KEY_MATRI_ID_BY,matri_id_by);
                params.put(KEY_MATRI_ID_TO,matri_id_to);
                return params;
            }
        };
        RequestQueue requestQueue = Volley.newRequestQueue(context);
        requestQueue.add(stringRequest1);
       }
      }
     }

推荐答案

1)首先发布可见视图

1) First issues visible view

您需要在其他部分放置其他视图的可见性代码，因为一旦状态从删除更改为其他，则您的视图将不可见，因此您需要放置可见代码.

you need to put visibility code for other view in else part because if once status change from deleted to other then your view will not visible so you need to put visible code.

例如我在您的其他部分添加了四行.请检查.并根据您的要求添加

ex. I have added four line in your else part. please check. and add as per you requirements

if(str_status.equalsIgnoreCase("deleted"))
    {
        holder.tvCommunity.setText("This profile has been deleted");
        holder.tvCommunity.setTextColor(Color.RED);
        holder.Community.setVisibility(View.GONE);
        holder.AgeHeight.setVisibility(View.GONE);
        holder.Occupation.setVisibility(View.GONE);
        holder.Income.setVisibility(View.GONE);
        holder.shortlist_on.setVisibility(View.GONE);
        holder.imageView.setVisibility(View.GONE);
        holder.tvAgeHeight.setVisibility(View.GONE);
        holder.tvIncome.setVisibility(View.GONE);
        holder.tvShortlistOn.setVisibility(View.GONE);
        holder.tvOccupation.setVisibility(View.GONE);
        holder.btnEI.setVisibility(View.GONE);
        holder.btnViewProfile.setVisibility(View.GONE);
    }
    else
    {
        //Add this   
        holder.Community.setVisibility(View.VISIBLE);
        holder.AgeHeight.setVisibility(View.VISIBLE);
        holder.Occupation.setVisibility(View.VISIBLE);
        holder.Income.setVisibility(View.VISIBLE);


        holder.AgeHeight.setText(superHero.getAge()+" / "+superHero.getAgeHeight());
        holder.Community.setText(superHero.getCommunity()+" / "+superHero.getCaste());
        holder.Occupation.setText(superHero.getOccupation());
        holder.Income.setText(superHero.getIncome());
        holder.shortlist_on.setText(superHero.getShortlisted_on());
        holder.btnEI.setText(superHero.getExpress_Intrest());
        //Loading image from url
        imageLoader = CustomVolleyRequest.getInstance(context).getImageLoader();
        imageLoader.get(superHero.getImageUrl(), ImageLoader.getImageListener(holder.imageView, R.drawable.image, android.R.drawable.ic_dialog_alert));
        holder.imageView.setImageUrl(superHero.getImageUrl(), imageLoader);

    }

这篇关于如何在回收站视图中使用getTag()和setTag()的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！