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Java 如何在RecyclerView中的一个项目中找到两个文本块?_Java_Android_Android Layout_Android Recyclerview_Android Layout Editor - Fatal编程技术网

Java 如何在RecyclerView中的一个项目中找到两个文本块?

Java 如何在RecyclerView中的一个项目中找到两个文本块?,java,android,android-layout,android-recyclerview,android-layout-editor,Java,Android,Android Layout,Android Recyclerview,Android Layout Editor,我已经用视图持有者和一个列表创建了RecyclerView。但我需要一个开始的文本视图和结束的第二个。我怎么做 我用两个文本视图创建了布局,在这些位置上已经有了。但是我应该设置第一个文本视图动物名和第二个人物名。 这是我的密码: MainActivity.java public class MainActivity extends AppCompatActivity { MyRecyclerViewAdapter adapter; @Override protected

我已经用视图持有者和一个列表创建了RecyclerView。但我需要一个开始的文本视图和结束的第二个。我怎么做

我用两个文本视图创建了布局,在这些位置上已经有了。但是我应该设置第一个文本视图动物名和第二个人物名。 这是我的密码:

MainActivity.java

public class MainActivity extends AppCompatActivity {
    MyRecyclerViewAdapter adapter;

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

        ArrayList<String> animalNames = new ArrayList<>();
        animalNames.add("Horse");
        animalNames.add("Cow");
        animalNames.add("Camel");
        animalNames.add("Sheep");
        animalNames.add("Goat");


        ArrayList<String> peopleNames = new ArrayList<>();
        animalNames.add("Harry");
        animalNames.add("John");
        animalNames.add("Sergey");
        animalNames.add("Steve");
        animalNames.add("Woody");

        RecyclerView recyclerView = findViewById(R.id.rvAnimals);
        recyclerView.setLayoutManager(new LinearLayoutManager(this));
        adapter = new MyRecyclerViewAdapter(this, animalNames);
        recyclerView.setAdapter(adapter);
        adapter.setClickListener(new MyRecyclerViewAdapter.ItemClickListener() {
            @Override
            public void onItemClick(View view, int position) {
                Toast.makeText(getApplicationContext(), "You clicked " + adapter.getItem(position) + " on row number " + position, Toast.LENGTH_SHORT).show();
            }
        });
    }
}
public类MainActivity扩展了AppCompatActivity{
MyRecycleServiceAdapter适配器;
@凌驾
创建时受保护的void(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ArrayList animalNames=新的ArrayList();
动物名称。添加(“马”);
动物名称。添加(“奶牛”);
动物名称。添加(“骆驼”);
动物名称。添加(“绵羊”);
动物名称。添加(“山羊”);
ArrayList peopleNames=新的ArrayList();
动物名称。添加(“哈里”);
动物名称。添加(“约翰”);
动物名称。添加(“Sergey”);
动物名称。添加(“史蒂夫”);
动物名称。添加(“伍迪”);
RecycleView RecycleView=findViewById(R.id.rvAnimals);
recyclerView.setLayoutManager(新的LinearLayoutManager(本));
适配器=新的MyRecycleServiceAdapter(这是animalNames);
recyclerView.setAdapter(适配器);
adapter.setClickListener(新的MyRecycleServiceAdapter.ItemClickListener(){
@凌驾
公共虚线单击(视图,int位置){
Toast.makeText(getApplicationContext(),“您单击了”+adapter.getItem(position)+“行号”+position,Toast.LENGTH_SHORT.show();
}
});
}
}
myRecycleServiceAdapter.java

public class MyRecyclerViewAdapter extends RecyclerView.Adapter<MyRecyclerViewAdapter.ViewHolder> {
    private List<String> mData;
    private LayoutInflater mInflater;
    private ItemClickListener mClickListener;

    MyRecyclerViewAdapter(Context context, List<String> data) {
        this.mInflater = LayoutInflater.from(context);
        this.mData = data;
    }

    @Override
    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = mInflater.inflate(R.layout.custom_view, parent, false);
        return new ViewHolder(view);
    }

    @Override
    public void onBindViewHolder(ViewHolder holder, int position) {
        String animal = mData.get(position);
        holder.myTextView.setText(animal);
    }

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


    public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
        TextView myTextView;
        TextView myTextView2;

        ViewHolder(View itemView) {
            super(itemView);
            myTextView = itemView.findViewById(R.id.tvAnimalName);
            myTextView2 = itemView.findViewById(R.id.tvAnimalName2);
            itemView.setOnClickListener(this);
        }

        @Override
        public void onClick(View view) {
            if (mClickListener != null) mClickListener.onItemClick(view, getAdapterPosition());
        }
    }

    String getItem(int id) {
        return mData.get(id);
    }

    void setClickListener(ItemClickListener itemClickListener) {
        this.mClickListener = itemClickListener;
    }

    public interface ItemClickListener {
        void onItemClick(View view, int position);
    }
}
公共类MyRecycleServiceAdapter扩展了RecycleView.Adapter{
私有列表数据;
私人停车场;
私有项ClickListener McClickListener;
MyRecycleServiceAdapter(上下文、列表数据){
this.mInflater=LayoutInflater.from(上下文);
this.mData=数据;
}
@凌驾
public ViewHolder onCreateViewHolder(视图组父级,int-viewType){
视图=最小平坦度。充气(R.layout.custom_视图,父视图,false);
返回新的ViewHolder(视图);
}
@凌驾
公共无效onBindViewHolder(ViewHolder,int位置){
字符串animal=mData.get(位置);
holder.myTextView.setText(动物);
}
@凌驾
public int getItemCount(){
返回mData.size();
}
公共类ViewHolder扩展了RecyclerView.ViewHolder实现了View.OnClickListener{
文本视图myTextView;
TextView myTextView2;
ViewHolder(视图项视图){
超级(项目视图);
myTextView=itemView.findViewById(R.id.tvAnimalName);
myTextView2=itemView.findViewById(R.id.tvAnimalName2);
setOnClickListener(这个);
}
@凌驾
公共void onClick(视图){
if(mClickListener!=null)mClickListener.onItemClick(视图,getAdapterPosition());
}
}
字符串getItem(int-id){
返回mData.get(id);
}
void setClickListener(项ClickListener项ClickListener){
this.mClickListener=itemClickListener;
}
公共接口项ClickListener{
void onItemClick(视图,int位置);
}
}
自定义视图.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    android:padding="10dp">

    <TextView
        android:id="@+id/tvAnimalName"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentStart="true"
        android:layout_marginStart="8dp"
        android:textSize="20sp" />


    <TextView
        android:id="@+id/tvPersonName"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_alignParentEnd="true"
        android:layout_marginEnd="8dp"
        android:textSize="20sp" />

</RelativeLayout>

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

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

</RelativeLayout>

同时在回收器视图的构造函数中传递人物数组列表
//喜欢活动
RecycleView RecycleView=findViewById(R.id.rvAnimals);
recyclerView.setLayoutManager(新的LinearLayoutManager(本));
adapter=new MyRecycleServiceAdapter(此、animalNames、personNames);
//在适配器类中
同时为个人创建一个列表
私有列表数据;
私人名单;
//适配器构造函数
MyRecycleServiceAdapter(上下文、列表数据、列表mpersonData){
this.mInflater=LayoutInflater.from(上下文);
this.mData=数据;
this.mpersonData=mpersonData;
}
//onbind视图保持器
@凌驾
公共无效onBindViewHolder(ViewHolder,int位置){
字符串animal=mData.get(位置);
字符串person=mData.get(位置);
holder.myTextView.setText(动物);
holder.myTextView.setText(person);
}
//将tv id名称更改为person
ViewHolder(视图项视图){
超级(项目视图);
myTextView=itemView.findViewById(R.id.tvAnimalName);
//把这个改成人名
myTextView2=itemView.findViewById(R.id.tvPersonalName);
setOnClickListener(这个);
}
现在,您还将在“回收器视图”文本字段中设置人名
粘贴此代码而不是相对布局使用线性布局
你可以有两列,如问题中所述
同时在回收器视图的构造函数中传递人物数组列表
//喜欢活动
RecycleView RecycleView=findViewById(R.id.rvAnimals);
recyclerView.setLayoutManager(新的LinearLayoutManager(本));
adapter=new MyRecycleServiceAdapter(此、animalNames、personNames);
//在适配器类中
同时为个人创建一个列表
私有列表数据;
私人名单;
//适配器构造函数
MyRecycleServiceAdapter(上下文、列表数据、列表mpersonData){
this.mInflater=LayoutInflater.from(上下文);
this.mData=数据;
this.mpersonData=mpersonData;
}
//onbind视图保持器
@凌驾
公共无效onBindViewHolder(ViewHolder,int位置){
字符串animal=mData.get(位置);
字符串person=mData.get(位置);
holder.myTextView.setText(动物);
holder.myTextView.setText(person);
}
//将tv id名称更改为person
观众
    Pass the person array list also in the constructor of the recycler view

    //like in activity
    RecyclerView recyclerView = findViewById(R.id.rvAnimals);
        recyclerView.setLayoutManager(new LinearLayoutManager(this));
        adapter = new MyRecyclerViewAdapter(this, animalNames,personNames);

    //in adapter class
    create a list for person also
    private List<String> mData;
    private List<String> mpersonData;

    // adapter constructor
    MyRecyclerViewAdapter(Context context, List<String> data,List<String> mpersonData) {
        this.mInflater = LayoutInflater.from(context);
        this.mData = data;
    this.mpersonData = mpersonData;
    }

    //onbind view holder

    @Override
    public void onBindViewHolder(ViewHolder holder, int position) {
        String animal = mData.get(position);
        String person = mData.get(position);
        holder.myTextView.setText(animal);
    holder.myTextView.setText(person);
    }

    //change the tv id name to person
      ViewHolder(View itemView) {
            super(itemView);
            myTextView = itemView.findViewById(R.id.tvAnimalName);
            // just change this to person name
            myTextView2 = itemView.findViewById(R.id.tvPersonalName);
            itemView.setOnClickListener(this);
        }

    Now you will set person name also in the recycler view text field


Paste this code instead of relative layout use linear layout

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

        <TextView
            android:id="@+id/tvAnimalName"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:weight="1"
            android:gravity="start"
            android:layout_marginStart="8dp"
            android:textSize="20sp" />


        <TextView
            android:id="@+id/tvPersonName"
             android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:weight="1"
            android:gravity="end"
            android:layout_marginEnd="8dp"
            android:textSize="20sp" />

    </LinearLayout>

and you can have two columns as mentioned in the question