写一篇android仿美团外卖加上代码

很抱歉，由于android仿美团外卖的实现涉及到多个模块和功能，无法在此篇回答中完全覆盖。以下是一个简单的示例代码，用于实现一个美团外卖的商家列表页面。

MainActivity.java

public class MainActivity extends AppCompatActivity {

    private RecyclerView recyclerView;
    private BusinessListAdapter adapter;
    private List<Business> dataList;

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

        // 初始化RecyclerView
        recyclerView = findViewById(R.id.business_list);
        recyclerView.setLayoutManager(new LinearLayoutManager(this));
        recyclerView.setHasFixedSize(true);

        // 初始化商家列表数据
        dataList = initData();

        // 初始化商家列表适配器
        adapter = new BusinessListAdapter(dataList);
        recyclerView.setAdapter(adapter);
    }

    private List<Business> initData() {
        List<Business> dataList = new ArrayList<>();

        // 添加商家数据
        dataList.add(new Business("1", "商家1", "地址1", "描述1", R.drawable.business_logo_1));
        dataList.add(new Business("2", "商家2", "地址2", "描述2", R.drawable.business_logo_2));
        dataList.add(new Business("3", "商家3", "地址3", "描述3", R.drawable.business_logo_3));

        return dataList;
    }
}

BusinessListAdapter.java

public class BusinessListAdapter extends RecyclerView.Adapter<BusinessListAdapter.ViewHolder> {

    private List<Business> dataList;

    public BusinessListAdapter(List<Business> dataList) {
        this.dataList = dataList;
    }

    @NonNull
    @Override
    public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_business, parent, false);
        return new ViewHolder(view);
    }

    @Override
    public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
        Business business = dataList.get(position);
        holder.businessName.setText(business.getName());
        holder.businessAddress.setText(business.getAddress());
        holder.businessDesc.setText(business.getDesc());
        holder.businessLogo.setImageResource(business.getLogo());
    }

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

    public static class ViewHolder extends RecyclerView.ViewHolder {

        public TextView businessName;
        public TextView businessAddress;
        public TextView businessDesc;
        public ImageView businessLogo;

        public ViewHolder(View itemView) {
            super(itemView);
            businessName = itemView.findViewById(R.id.business_name);
            businessAddress = itemView.findViewById(R.id.business_address);
            businessDesc = itemView.findViewById(R.id.business_desc);
            businessLogo = itemView.findViewById(R.id.business_logo);
        }
    }
}

Business.java

public class Business {

    private String id;
    private String name;
    private String address;
    private String desc;
    private int logo;

    public Business(String id, String name, String address, String desc, int logo) {
        this.id = id;
        this.name = name;
        this.address = address;
        this.desc = desc;
        this.logo = logo;
    }

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public String getAddress() {
        return address;
    }

    public void setAddress(String address) {
        this.address = address;
    }

    public String getDesc() {
        return desc;
    }

    public void setDesc(String desc) {
        this.desc = desc;
    }

    public int getLogo() {
        return logo;
    }

    public void setLogo(int logo) {
        this.logo = logo;
    }
}

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/business_list"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_margin="16dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

</androidx.constraintlayout.widget.ConstraintLayout>

item_business.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.cardview.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginTop="8dp"
    android:layout_marginBottom="8dp"
    android:layout_marginStart="16dp"
    android:layout_marginEnd="16dp"
    android:elevation="8dp"
    app:cardCornerRadius="8dp">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal">

        <ImageView
            android:id="@+id/business_logo"
            android:layout_width="80dp"
            android:layout_height="80dp"
            android:padding="8dp" />

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical"
            android:padding="8dp">

            <TextView
                android:id="@+id/business_name"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:textSize="20sp"
                android:textStyle="bold" />

            <TextView
                android:id="@+id/business_address"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:textSize="16sp" />

            <TextView
                android:id="@+id/business_desc"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:textSize="16sp" />

        </LinearLayout>

    </LinearLayout>

</androidx.cardview.widget.CardView>

以上示例代码实现了一个简单的商家列表页面，包括商家名称、地址、描述和商家logo。您可以根据自己的需求进行修改和扩展。