ADD file via upload

FoodGridActivity.java

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+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.AdapterView;
+import android.widget.GridView;
+
+import com.example.health.Bean.FoodBean;
+import com.example.health.Bean.Foodinfo;
+import com.example.health.R;
+
+import java.util.List;
+
+public class FoodGridActivity extends AppCompatActivity {
+    GridView gv;
+    List<FoodBean> mDatas;
+    private FoodGridAdapter adapter;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_food_grid);
+        gv = findViewById(R.id.food_gird_gv);
+        //数据源
+        mDatas = Foodinfo.getAllFoodList();
+        //创建适配器对象
+        adapter = new FoodGridAdapter(this, mDatas);
+        //设置适配器
+        gv.setAdapter(adapter);
+        setListener();
+    }
+
+    private void setListener() {
+        gv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
+            @Override
+            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+                FoodBean foodBean = mDatas.get(position);
+                Intent intent = new Intent(FoodGridActivity.this, FoodDescActivity.class);
+                intent.putExtra("food",foodBean);
+                startActivity(intent);
+            }
+        });
+    }
+}