foodcheck/FoodDescActivity.java

package com.example.health.food_grid;

import androidx.appcompat.app.AppCompatActivity;

import android.content.Intent;
import android.os.Bundle;
import android.view.View;
import android.widget.ImageView;
import android.widget.TextView;

import com.example.health.Bean.FoodBean;
import com.example.health.R;

public class FoodDescActivity extends AppCompatActivity {
    TextView name,cal,note;
    ImageView return1,pic;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_food_desc);
        //使用下面的函数获取到dexc的布局的控件
        initView();
        //接收上一级页面传来的数据
        Intent intent = getIntent();
        //序列化
        FoodBean foodBean = (FoodBean) intent.getSerializableExtra("food");
        //设置显示控件
        name.setText(foodBean.getFoodName());
        cal.setText(foodBean.getFoodCalorie());
        note.setText(foodBean.getFoodIntroduce());
        pic.setImageResource(foodBean.getPicID());
    }

    private void initView() {
        name = findViewById(R.id.fooddexc_tv_name);
        cal = findViewById(R.id.fooddesc_tv_cal);
        note = findViewById(R.id.fooddesc_tv_note);
        return1 = findViewById(R.id.fooddesc_iv_return);
        pic = findViewById(R.id.fooddesc_iv_pic);
        return1.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                finish();//销毁当前的activity
            }
        });
    }
}