Question

我刚创建了一个包含文本和复选框的回收站视图我认为我为此Recycler项创建了一个适配器适配器类

   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();
    }
}

并将此项添加到String []

中

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"})));

这是我的模特

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;
    }


}

但它只显示了这样的1个文本我需要的只是展示其他文本，我还需要这些文本显示在彼此之后和彼此之下我应该为这些文本制作另一个适配器和模型吗？

我想创建类似这样的重复文本，使用相同的文本视图，但名称不同希望这会很清楚

Answer 1

onBindViewHolder你把这个

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

由于您通过执行modifierName[0]显式设置单个修饰符，因此它显示单个条目。

如果要动态添加更多TextView，请使用其他布局包装modifierName TextView。之后，您可以使用每个modifierName项动态地向其添加TextView。

Answer 2

请检查我的解决方案，希望它对您有所帮助：

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;
    }


}
}

这是主要活动布局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>

这是Recycler View项目布局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>

如果对您的要求有帮助，请告诉我。

Answer 3

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

RecyclerView项目显示只有一个背景的文本

3 个答案: