RecyclerView项目显示只有一个背景的文本

Question

I have Just created a recycler view contains a text and a check box I supposed that I created an adapter for this Recycler Item adapter class

   package abtech.waiteriano.com.waitrer.adapters;

/**
 * Created by dell on 7/13/2017.
 */

import android.content.Context;
import android.support.v7.widget.CardView;
import android.support.v7.widget.RecyclerView;
import android.util.SparseBooleanArray;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.RelativeLayout;
import android.widget.TextView;
import android.widget.Toast;

import java.util.ArrayList;

import abtech.waiteriano.com.waitrer.R;
import cn.refactor.library.SmoothCheckBox;

public class ItemModifierAdapter extends RecyclerView.Adapter<ItemModifierAdapter.ItemModifierVierHolder> {
    private Context mContext;
    static ArrayList<ItemModifierModel> itemModifierModels;
    static ArrayList<Boolean> positionArray;


    public ItemModifierAdapter(Context context, ArrayList<ItemModifierModel> itemModifierModels) {
        mContext = context;
        this.itemModifierModels = itemModifierModels;
        positionArray = new ArrayList<Boolean>(itemModifierModels.size());
        for (int i = 0; i < itemModifierModels.size(); i++) {
            positionArray.add(false);
        }

    }

    public static class ItemModifierVierHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
        CardView cv;
        Context c;
        TextView itemName, modifierName;
        SmoothCheckBox Iv1;
        private SparseBooleanArray selectedItems;
        RelativeLayout RV1;
        private Context mContext;

        ItemModifierVierHolder(View itemView) {
            super(itemView);
            cv = (CardView) itemView.findViewById(R.id.cv);
            Iv1 = (SmoothCheckBox) itemView.findViewById(R.id.iv1);
            modifierName = (TextView) itemView.findViewById(R.id.modifierItemNameTv);
            RV1 = (RelativeLayout) itemView.findViewById(R.id.rv1);
            //set OnclickListener
            itemView.setOnClickListener(this);
        }

        @Override
        public void onClick(View view) {
            int position = getAdapterPosition();
            Iv1.toggle();
            Iv1.mTickDrawing = false;
            Iv1.mDrewDistance = 0;
            if (Iv1.isChecked()) {
//                RV1.setTag(true);
//              `  Iv1.setVisibility(View.VISIBLE);
//                Iv1.setChecked(false);
                positionArray.set(position, true);
                Iv1.startCheckedAnimation();


            } else {
//                Iv1.setVisibility(View.INVISIBLE);
//                Iv1.setChecked(true);
                positionArray.set(position, false);
                Iv1.startUnCheckedAnimation();
//                RV1.setTag(null);

            }
            Toast.makeText(itemView.getContext(), "Position: " + itemModifierModels.get(Integer.parseInt(getAdapterPosition() + "")).getSer(), Toast.LENGTH_LONG).show();

        }
    }


    @Override
    public void onAttachedToRecyclerView(RecyclerView recyclerView) {
        super.onAttachedToRecyclerView(recyclerView);
    }

    @Override
    public ItemModifierVierHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
        View v = LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.item_modifier, viewGroup, false);
        ItemModifierVierHolder imvh = new ItemModifierVierHolder(v);
        return imvh;
    }

    @Override
    public void onBindViewHolder(ItemModifierVierHolder itemModifierVierHolder, final int position) {
        for (int i = 0; i < itemModifierModels.get(position).modifierName.length; i++) {
            if (i == 0)
                itemModifierVierHolder.modifierName.setText(itemModifierModels.get(position).modifierName[i]);
            else
                itemModifierVierHolder.modifierName.setText(itemModifierVierHolder.modifierName.getText().toString() + "\n" + itemModifierModels.get(position).modifierName[i]);

        }
//        itemModifierVierHolder.modifierName.setText(itemModifierModels.get(position).modifierName[0]);
        itemModifierVierHolder.RV1.setFocusable(false);
        itemModifierVierHolder.Iv1.setChecked(positionArray.get(position));

    }

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

and added this item in a String[ ]

Modifiers = new ArrayList<>();
Modifiers.add(new ItemModifierModel(1,(new String []{"Roomy Roll","Kiri Roll","Roomy Roll","Eggs Roll","Modifier 5","Modifier 6"}) ));
Modifiers.add(new ItemModifierModel(16, (new String []{"Eggs Roll"})));
Modifiers.add(new ItemModifierModel(23,(new String []{"Kiri Roll"})));
Modifiers.add(new ItemModifierModel(43,(new String []{"Roomy Roll"})));
Modifiers.add(new ItemModifierModel(50,(new String []{"Roomy Roll"})));
Modifiers.add(new ItemModifierModel(56,(new String []{"Kiri Roll"})));
Modifiers.add(new ItemModifierModel(63,(new String []{"Kiri Roll"})));
Modifiers.add(new ItemModifierModel(73,(new String []{"Eggs Roll"})));
Modifiers.add(new ItemModifierModel(80,(new String []{"Eggs Roll"})));

and this is my Model

package abtech.waiteriano.com.waitrer.adapters;

/**
 * Created by dell on 7/13/2017.
 */

public class ItemModifierModel {

    String[] modifierName;
    int ser;

    ItemModifierModel(int ser, String[] modifierName) {

        this.modifierName = modifierName;
        this.ser = ser;
    }

    public String[] getModifierName() {
        return modifierName;
    }




    public int getSer() {
        return ser;
    }


}

but It shows Only just 1 text like this all I need I want to shows the other texts,and I need also these texts shows behind each others and under each others shall I make another adapter and model for these text?

I want to create something like this repeating texts with the same text view but with different name hope this gonna be clear

Answer 1

onBindViewHolder you put this

itemModifierVierHolder.modifierName.setText(itemModifierModels.get(position).modifierName[0]);

Since you're explicitly setting a single modifier by executing modifierName[0] thus, it shows the single entry.

If you want to add more TextViews dynamically then wrap modifierName TextView with another layout. After that, you can dynamically add TextViews to it with each modifierName item.

Answer 2

我有一个丑陋的解决方案，尝试使用ItemModifierVierHolder创建一个sub recyclerView，然后为每个子数据项添加一个checkBox + textView

Answer 3

Please check my solution, hope it helps you :

package com.app.practiceapp;

import android.os.Bundle;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.LinearLayout;
import android.widget.TextView;
import java.util.ArrayList;

public class MainActivity extends AppCompatActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    String[] namesArray1 = new String[]{"Cupcake", "Donut", "Eclair", "Froyo"};

    Model model1 = new Model();
    model1.setNamesArray(namesArray1);

    String[] namesArray2 = new String[]{"Gingerbread", "Honeycomb", "Ice Cream Sandwich", "Jelly Bean"};
    Model model2 = new Model();
    model2.setNamesArray(namesArray2);

    String[] namesArray3 = new String[]{"Kitkat", "Lollipop", "Marshmallow", "Nougat"};
    Model model3 = new Model();
    model3.setNamesArray(namesArray3);

    String[] namesArray4 = new String[]{"Prashant", "Android", "Developer"};
    Model model4 = new Model();
    model4.setNamesArray(namesArray4);

    ArrayList<Model> modelList = new ArrayList<>();

    modelList.add(model1);
    modelList.add(model2);
    modelList.add(model3);
    modelList.add(model4);

    RecyclerView recyclerView = (RecyclerView) findViewById(R.id.recyclerView);

    recyclerView.setLayoutManager(new LinearLayoutManager(this));

    recyclerView.setAdapter(new MyAdapter(modelList));

}


class MyAdapter extends RecyclerView.Adapter<MyAdapter.MyViewHolder> {

    private ArrayList<Model> modelList;

    MyAdapter(ArrayList<Model> myList) {

        this.modelList = myList;

    }

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

        return new MyViewHolder(LayoutInflater.from(MainActivity.this).inflate(R.layout.item_recyclerview, parent, false));

    }

    @Override
    public void onBindViewHolder(MyViewHolder holder, int position) {

        for (int i = 0; i < modelList.get(position).getNamesArray().length; i++) {

            TextView textView = new TextView(MainActivity.this);
            textView.setGravity(Gravity.CENTER);

            LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
            layoutParams.setMargins(10, 10, 10, 10);
            textView.setLayoutParams(layoutParams);

            textView.setPadding(10, 10, 10, 10);
            textView.setBackgroundColor(ContextCompat.getColor(MainActivity.this, android.R.color.holo_blue_light));

            textView.setTextColor(ContextCompat.getColor(MainActivity.this, android.R.color.white));
            textView.setText(modelList.get(position).namesArray[i]);

            holder.itemContainerLayout.addView(textView);

        }


    }

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

    public class MyViewHolder extends RecyclerView.ViewHolder {

        private final LinearLayout itemContainerLayout;

        public MyViewHolder(View itemView) {
            super(itemView);

            itemContainerLayout = (LinearLayout) itemView.findViewById(R.id.containerLayout);
        }
    }
}

class Model {

    private String[] namesArray;

    public void setNamesArray(String[] namesArray) {
        this.namesArray = namesArray;
    }

    public String[] getNamesArray() {

        return namesArray;
    }


}
}

Here's the Main Activity layout xml:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout     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="com.app.practiceapp.MainActivity">


<android.support.v7.widget.RecyclerView
    android:id="@+id/recyclerView"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

</RelativeLayout>

and this is the Recycler View item layout xml:

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout     xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/containerLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:gravity="center"
android:orientation="horizontal"
android:padding="10dp">

</LinearLayout>

Please let me know if its helpful for your requirement.