ArrayAdapter，SimpleAdapter-白红宇

ArrayAdapter，SimpleAdapter

阅读量：6542 次

发布时间：2019-06-24

本文共 5571 字，大约阅读时间需要 18 分钟。

1--ArrayAdapter 　　ListViewActivity.java

package com.example.lenovo.textapp4;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.widget.ArrayAdapter;import android.widget.ListView;public class ListViewActivity extends AppCompatActivity {    ListView lv_1;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_list_view);        ListView lv_1=(ListView)findViewById(R.id.lv_1);        //1-数据集合   Layout文件        String []str={"A1","A2","A3","A4","A5","A6","A7","A8","A9","B1","B2","B3","B4","B5","B6","B7","B8","B9"};        //2-创建Adapter        ArrayAdapter
      
        arrayAdapter=new ArrayAdapter
       
        (this,R.layout.array_adapter,str);        //3-绑定到ListView        lv_1.setAdapter(arrayAdapter);    }}

View Code

　　activity_list_view.xml

View Code

　　array_adapter.xml

View Code

2--SimpleAdapter

　　List2Activity.java

package com.example.lenovo.textapp4;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.widget.ListView;import android.widget.SimpleAdapter;import java.util.ArrayList;import java.util.HashMap;import java.util.Hashtable;import java.util.List;import java.util.Map;import java.util.Objects;public class List2Activity extends AppCompatActivity {    ListView lv_2;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_list2);        lv_2=(ListView)findViewById(R.id.lv_2);        //1-数据集合   Layout文件        List
       
        > lm=new ArrayList
        
         
          >();        Map
          
            map=new HashMap
           
            (); map.put("img",R.drawable.f1); map.put("name","美食1"); map.put("content","美食1的美食介绍"); lm.add(map); map=new HashMap
            
             (); map.put("img",R.drawable.f2); map.put("name", "美食2"); map.put("content","美食2的美食介绍"); lm.add(map); map=new HashMap
             
              (); map.put("img",R.drawable.f3); map.put("name", "美食3"); map.put("content","美食3的美食介绍"); lm.add(map); map=new HashMap
              
               (); map.put("img",R.drawable.f4); map.put("name", "美食4"); map.put("content","美食4的美食介绍"); lm.add(map); map=new HashMap
               
                (); map.put("img",R.drawable.f5); map.put("name", "美食5"); map.put("content","美食5的美食介绍"); lm.add(map); map=new HashMap
                
                 (); map.put("img",R.drawable.f6); map.put("name", "美食6"); map.put("content","美食6的美食介绍"); lm.add(map); map=new HashMap
                 
                  (); map.put("img",R.drawable.f7); map.put("name", "美食7"); map.put("content","美食7的美食介绍"); lm.add(map); map=new HashMap
                  
                   (); map.put("img",R.drawable.f8); map.put("name", "美食8"); map.put("content","美食8的美食介绍"); lm.add(map); map=new HashMap
                   
                    (); map.put("img",R.drawable.f9); map.put("name", "美食9"); map.put("content","美食9的美食介绍"); lm.add(map); map=new HashMap
                    
                     (); map.put("img",R.drawable.f10); map.put("name", "美食10"); map.put("content","美食10的美食介绍"); lm.add(map); //数组 key的数组 String [] strings={"img","name","content"}; int [] ids={R.id.iv_2,R.id.tv_7,R.id.tv_8}; //2-创建simpleadapter SimpleAdapter simpleAdapter=new SimpleAdapter(this,lm,R.layout.simpleadapter_activity,strings,ids); //绑定 lv_2.setAdapter(simpleAdapter); }}package com.example.lenovo.textapp4;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.widget.ListView;import android.widget.SimpleAdapter;import java.util.ArrayList;import java.util.HashMap;import java.util.Hashtable;import java.util.List;import java.util.Map;import java.util.Objects;public class List2Activity extends AppCompatActivity { ListView lv_2; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_list2); lv_2=(ListView)findViewById(R.id.lv_2); //1-数据集合 Layout文件 List
                     
                      
                       > lm=new ArrayList
                       
                        
                         >(); Map
                         
                           map=new HashMap
                          
                           (); map.put("img",R.drawable.f1); map.put("name","美食1"); map.put("content","美食1的美食介绍"); lm.add(map); map=new HashMap
                           
                            (); map.put("img",R.drawable.f2); map.put("name", "美食2"); map.put("content","美食2的美食介绍"); lm.add(map); map=new HashMap
                            
                             (); map.put("img",R.drawable.f3); map.put("name", "美食3"); map.put("content","美食3的美食介绍"); lm.add(map); map=new HashMap
                             
                              (); map.put("img",R.drawable.f4); map.put("name", "美食4"); map.put("content","美食4的美食介绍"); lm.add(map); map=new HashMap
                              
                               (); map.put("img",R.drawable.f5); map.put("name", "美食5"); map.put("content","美食5的美食介绍"); lm.add(map); map=new HashMap
                               
                                (); map.put("img",R.drawable.f6); map.put("name", "美食6"); map.put("content","美食6的美食介绍"); lm.add(map); map=new HashMap
                                
                                 (); map.put("img",R.drawable.f7); map.put("name", "美食7"); map.put("content","美食7的美食介绍"); lm.add(map); map=new HashMap
                                 
                                  (); map.put("img",R.drawable.f8); map.put("name", "美食8"); map.put("content","美食8的美食介绍"); lm.add(map); map=new HashMap
                                  
                                   (); map.put("img",R.drawable.f9); map.put("name", "美食9"); map.put("content","美食9的美食介绍"); lm.add(map); map=new HashMap
                                   
                                    (); map.put("img",R.drawable.f10); map.put("name", "美食10"); map.put("content","美食10的美食介绍"); lm.add(map); //数组 key的数组 String [] strings={"img","name","content"}; int [] ids={R.id.iv_2,R.id.tv_7,R.id.tv_8}; //2-创建simpleadapter SimpleAdapter simpleAdapter=new SimpleAdapter(this,lm,R.layout.simpleadapter_activity,strings,ids); //绑定 lv_2.setAdapter(simpleAdapter); }}