ListView和RecycleView显示问题

Question

代码检查了好几遍都不知道出错在哪
把RecyclerView的代码附上
希望有大神帮忙
FruitAdapter适配器代码：
public class FruitAdapter extends RecyclerView.Adapter<FruitAdapter.ViewHolder> {
    private List<Fruit> mFruitList;    public FruitAdapter(List<Fruit> fruitList){
        mFruitList=fruitList;    }
    @Override
    public ViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {
        View view=LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.fruit_item,viewGroup,false);
        ViewHolder holder=new ViewHolder(view);
        return holder;
    }    @Override
    public void onBindViewHolder(@NonNull ViewHolder holder, int i) {
            Fruit fruit=mFruitList.get(i);
            holder.fruitname.setText(fruit.getName());
            holder.fruitimage.setImageResource(fruit.getImageId());
    }    @Override
    public int getItemCount() {
        return mFruitList.size();
    }    static class ViewHolder extends RecyclerView.ViewHolder{
        ImageView fruitimage;
        TextView fruitname;
        public ViewHolder(@NonNull View itemView) {
            super(itemView);
            fruitimage=(ImageView)itemView.findViewById(R.id.fruit_image);
            fruitname=(TextView)itemView.findViewById(R.id.fruit_name);
        }
    }
}MainActivity代码
public class MainActivity extends AppCompatActivity {    private List<Fruit> fruitList=new ArrayList<>();
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        init();
        RecyclerView recyclerView=(RecyclerView)findViewById(R.id.recycler);
        LinearLayoutManager layoutManager=new LinearLayoutManager(this);
        recyclerView.setLayoutManager(layoutManager);
        FruitAdapter adapter=new FruitAdapter(fruitList);
        recyclerView.setAdapter(adapter);    }    private void init(){
        for(int i=0;i<2;i++){
            Fruit a=new Fruit("a",R.mipmap.ic_launcher);
            fruitList.add(a);
            Fruit b=new Fruit("b",R.mipmap.ic_launcher);
            fruitList.add(b);
            Fruit c=new Fruit("c",R.mipmap.ic_launcher);
            fruitList.add(c);
            Fruit d=new Fruit("d",R.mipmap.ic_launcher);
            fruitList.add(d);
            Fruit e=new Fruit("e",R.mipmap.ic_launcher);
            fruitList.add(e);
            Fruit f=new Fruit("f",R.mipmap.ic_launcher);
            fruitList.add(f);
            Fruit g=new Fruit("g",R.mipmap.ic_launcher);
            fruitList.add(g);
        }
    }
}Fruit——item.xml代码
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content">    <ImageView
        android:id="@+id/fruit_image"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />    <TextView
        android:id="@+id/fruit_name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_vertical"
        android:layout_marginLeft="10dp"/></LinearLayout>

Answer 1

什么错误你都不说清楚，谁知道有什么问题
LinearLayout  没有orientation
   

Answer 2

代码没问题 看你Fruit里面怎么写的
public class Fruit {
    private String name;
    private int imageId;    public Fruit(String name, int imageId) {
        this.name = name;
        this.imageId = imageId;
    }    public String getName() {
        return name;
    }    public void setName(String name) {
        this.name = name;
    }    public int getImageId() {
        return imageId;
    }    public void setImageId(int imageId) {
        this.imageId = imageId;
    }
}

Answer 3

啊，我知道了，谢谢你，我多加了一个static，看这个代码却从来没想过Fruit会出错