Day1

package com.example.zuoye1; import android.content.DialogInterface; import android.os.Bundle; import android.view.LayoutInflater; import android.view.View; import android.widget.AdapterView; import android.widget.Button; import android.widget.ImageView; import android.widget.ListView; import android.widget.TextView; import android.widget.Toast; import androidx.appcompat.app.AlertDialog; import androidx.appcompat.app.AppCompatActivity; import com.bumptech.glide.Glide; import java.util.ArrayList; import java.util.List; public class MainActivity extends AppCompatActivity { private String path = "http://www.qubaobei.com/ios/cf/dish_list.php?stage_id=1&limit=10&page=1"; private List<JavaBean.DataBean> list = new ArrayList<>(); private MyApater myApater; private ListView tv; private AlertDialog alertDialog; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); myApater = new MyApater(this, list); MyAsync myAsync = (MyAsync) new MyAsync(list, this.myApater).execute(path); initView(); tv.setAdapter(myApater); tv.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> adapterView, View view, final int i, long l) { final View view1 = LayoutInflater.from(MainActivity.this).inflate(R.layout.itemduan,null); final AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this); // builder.setIcon(Integer.parseInt(list.get(i).getPic())); builder.setTitle(list.get(i).getTitle()); TextView textView = view1.findViewById(R.id.itemduan_tv); textView.setText(list.get(i).getTitle()); ImageView imageView = view1.findViewById(R.id.itemduan_im); Glide.with(MainActivity.this).load(list.get(i).getPic()).into(imageView); final Button button = view1.findViewById(R.id.itemduan_qx); button.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { alertDialog.cancel(); } }); Button button1 = view1.findViewById(R.id.itemduna_q); button1.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View view) { alertDialog.cancel(); Toast.makeText(MainActivity.this, "这个是"+list.get(i).getId(), Toast.LENGTH_SHORT).show(); } }); builder.setView(view1); tv.setOnItemLongClickListener(new AdapterView.OnItemLongClickListener() { @Override public boolean onItemLongClick(final AdapterView<?> adapterView, final View view, int i, long l) { AlertDialog.Builder builder1 = new AlertDialog.Builder(MainActivity.this); builder1.setIcon(R.mipmap.ic_launcher); builder1.setTitle("Duoduo"); builder1.setNegativeButton("删除", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialogInterface, int i) { list.remove(i+""); myApater.notifyDataSetChanged(); } }); builder1.create(); builder1.show(); return false; } }); alertDialog = builder.create(); builder.show(); } }); } private void initView() { tv = (ListView) findViewById(R.id.tv); } } package com.example.zuoye1; import java.util.List; public class JavaBean { /** * ret : 1 * data : [{"id":"8289","title":"油焖大虾","pic":"http://www.qubaobei.com/ios/cf/uploadfile/132/9/8289.jpg","collect_num":"1669","food_str":"大虾 葱 生姜 植物油 料酒","num":1669},{"id":"2127","title":"四川回锅肉","pic":"http://www.qubaobei.com/ios/cf/uploadfile/132/3/2127.jpg","collect_num":"1591","food_str":"猪肉 青蒜 青椒 红椒 姜片","num":1591},{"id":"30630","title":"超简单芒果布丁","pic":"http://www.qubaobei.com/ios/cf/uploadfile/132/31/30630.jpg","collect_num":"1544","food_str":"QQ糖 牛奶 芒果","num":1544},{"id":"9073","title":"家常红烧鱼","pic":"http://www.qubaobei.com/ios/cf/uploadfile/132/10/9073.jpg","collect_num":"1425","food_str":"鲜鱼 姜 葱 蒜 花椒","num":1425},{"id":"10097","title":"家常煎豆腐","pic":"http://www.qubaobei.com/ios/cf/uploadfile/132/11/10097.jpg","collect_num":"1419","food_str":"豆腐 新鲜红椒 青椒 葱花 油","num":1419},{"id":"10509","title":"水煮肉片","pic":"http://www.qubaobei.com/ios/cf/uploadfile/132/11/10509.jpg","collect_num":"1341","food_str":"瘦猪肉 生菜 豆瓣酱 干辣椒 花椒","num":1341},{"id":"46968","title":"红糖苹果银耳汤","pic":"http://www.qubaobei.com/ios/cf/uploadfile/132/47/46968.jpg","collect_num":"1252","food_str":"银耳 苹果 红糖","num":1252},{"id":"10191","title":"麻婆豆腐","pic":"http://www.qubaobei.com/ios/cf/uploadfile/132/11/10191.jpg","collect_num":"1221","food_str":"豆腐 肉末 生抽 白糖 芝麻油","num":1221},{"id":"2372","title":"皮蛋瘦肉粥","pic":"http://www.qubaobei.com/ios/cf/uploadfile/132/3/2372.jpg","collect_num":"1151","food_str":"大米 皮蛋 猪肉 油条 香葱","num":1151},{"id":"2166","title":"蚂蚁上树","pic":"http://www.qubaobei.com/ios/cf/uploadfile/132/3/2166.jpg","collect_num":"1144","food_str":"红薯粉 肉 姜 蒜 花椒","num":1144}] */ private int ret; private List<DataBean> data; public int getRet() { return ret; } public void setRet(int ret) { this.ret = ret; } public List<DataBean> getData() { return data; } public void setData(List<DataBean> data) { this.data = data; } public static class DataBean { /** * id : 8289 * title : 油焖大虾 * pic : http://www.qubaobei.com/ios/cf/uploadfile/132/9/8289.jpg * collect_num : 1669 * food_str : 大虾 葱 生姜 植物油 料酒 * num : 1669 */ private String id; private String title; private String pic; private String collect_num; private String food_str; private int num; public String getId() { return id; } public void setId(String id) { this.id = id; } public String getTitle() { return title; } public void setTitle(String title) { this.title = title; } public String getPic() { return pic; } public void setPic(String pic) { this.pic = pic; } public String getCollect_num() { return collect_num; } public void setCollect_num(String collect_num) { this.collect_num = collect_num; } public String getFood_str() { return food_str; } public void setFood_str(String food_str) { this.food_str = food_str; } public int getNum() { return num; } public void setNum(int num) { this.num = num; } } } package com.example.zuoye1; import android.content.Context; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.ImageView; import android.widget.TextView; import com.bumptech.glide.Glide; import java.util.List; public class MyApater extends BaseAdapter { private Context context; private List<JavaBean.DataBean> list; private LayoutInflater layoutInflater; public MyApater(Context context, List<JavaBean.DataBean> list) { this.context = context; this.list = list; layoutInflater = LayoutInflater.from(context); } @Override public int getCount() { return list.size(); } @Override public Object getItem(int i) { return list.get(i); } @Override public long getItemId(int i) { return i; } @Override public View getView(int i, View view, ViewGroup viewGroup) { ViewHolder viewHolder = null; if (view==null){ viewHolder = new ViewHolder(); view = layoutInflater.inflate(R.layout.jsonitem,null); viewHolder.textView = view.findViewById(R.id.jsonitem_tv); viewHolder.imageView = view.findViewById(R.id.jsonitem_im); view.setTag(viewHolder); }else{ viewHolder = (ViewHolder) view.getTag(); } viewHolder.textView.setText(list.get(i).getTitle()); Glide.with(context).load(list.get(i).getPic()).into(viewHolder.imageView); return view; } private class ViewHolder { private TextView textView; private ImageView imageView; } } package com.example.zuoye1; import android.os.AsyncTask; import android.util.Log; import com.google.gson.Gson; import java.util.List; public class MyAsync extends AsyncTask<String,Void, List<JavaBean.DataBean>> { private static final String TAG = "MyAsync"; private List<JavaBean.DataBean> list; private MyApater myApater; public MyAsync(List<JavaBean.DataBean> list, MyApater myApater) { this.list = list; this.myApater = myApater; } @Override protected List<JavaBean.DataBean> doInBackground(String... strings) { String bean = Utils.Bean(strings[0]); if (bean!=null){ return new Gson().fromJson(bean,JavaBean.class).getData(); }else{ Log.i(TAG, "doInBackground: 下载失败"); } return null; } @Override protected void onPostExecute(List<JavaBean.DataBean> dataBeans) { super.onPostExecute(dataBeans); if (dataBeans!=null){ list.addAll(dataBeans); myApater.notifyDataSetChanged(); } } } package com.example.zuoye1; import java.io.File; import java.io.InputStream; import java.net.HttpURLConnection; import java.net.MalformedURLException; import java.net.URL; import java.net.URLConnection; public class Utils { public static String Bean(String path){ InputStream is; StringBuffer sb = new StringBuffer(); try { URL url = new URL(path); HttpURLConnection connection = (HttpURLConnection) url.openConnection(); connection.setRequestMethod("GET"); is = connection.getInputStream(); connection.connect(); if (connection.getResponseCode()==200){ int len = 0; byte[] b = new byte[1024]; while((len = is.read(b))!=-1){ sb.append(new String(b,0,len)); } } return sb.toString(); } catch (Exception e) { e.printStackTrace(); } return null; } } <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent"> <TextView android:layout_width="match_parent" android:layout_height="50dp" android:id="@+id/text_item" android:text="菜名" android:gravity="center" /> <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center" android:src="@mipmap/ic_launcher" android:id="@+id/image_item" /> <LinearLayout android:layout_width="match_parent" android:layout_height="40dp" android:gravity="center" android:orientation="horizontal"> <Button android:layout_width="100dp" android:layout_height="40dp" android:text="-" android:id="@+id/bt_itemj" /> <TextView android:layout_width="100dp" android:layout_height="40dp" android:text="0" android:gravity="center" android:id="@+id/shu_item" /> <Button android:layout_width="100dp" android:layout_height="40dp" android:text="+" android:id="@+id/bt_itemjia" /> </LinearLayout> <RelativeLayout android:layout_width="match_parent" android:layout_height="40dp" android:orientation="horizontal"> <Button android:layout_width="100dp" android:layout_height="40dp" android:text="确定" android:id="@+id/item_qd" /> <Button android:layout_width="100dp" android:layout_height="40dp" android:text="取消" android:id="@+id/item_qx" android:layout_alignParentRight="true" /> </RelativeLayout> </LinearLayout> <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="菜名" android:id="@+id/itemduan_tv" android:layout_gravity="center"/> <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@mipmap/ic_launcher" android:layout_gravity="center" android:id="@+id/itemduan_im" /> <RelativeLayout android:layout_width="match_parent" android:orientation="horizontal" android:layout_height="50dp"> <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="确定" android:id="@+id/itemduna_q" /> <Button android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="取消" android:id="@+id/itemduan_qx" android:layout_alignParentRight="true" /> </RelativeLayout> </LinearLayout> <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="match_parent" android:layout_height="match_parent"> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="0" android:id="@+id/jsonitem_tv" android:layout_gravity="center" /> <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@mipmap/ic_launcher" android:layout_gravity="center" android:id="@+id/jsonitem_im" /> </LinearLayout>