android 28 SimpleAdapter-白红宇

监听器返回fasle，则事件还会分发给其他监听器。SimpleAdapter是BaseAdapter的子类，对适配器进行了简化，数据的格式是List，List的元素必须是Map, public SimpleAdapter(Context context, List
     > data,            int resource, String[] from, int[] to) {
   //Activity是Context的子类，resource是每一行ListViewItem布局，from是Map中头像和名字的所有的键，所有头像的健和所有名字的健，to是ListViewItem（每一行）布局的id值，开发不灵活。

MainActivity.java

package com.sxt.day05_02;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;import android.app.Activity;import android.os.Bundle;import android.widget.ListView;import android.widget.SimpleAdapter;public class MainActivity extends Activity {    ListView mlvGenerals;//
         List
      
       > mGenerals;    SimpleAdapter mAdapter;        static final String KEY_PHOTOID="photoid";    static final String KEY_NAME="name";        @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        initData();//初始化数据        initView();    }    private void initView() {        mlvGenerals=(ListView) findViewById(R.id.lvGeneral);        mAdapter=new SimpleAdapter(this, mGenerals,             R.layout.item_generals,             new String[]{KEY_PHOTOID,KEY_NAME},             new int[]{R.id.ivThumb,R.id.tvName});        mlvGenerals.setAdapter(mAdapter);    }    private void initData() {        int[] resid={                R.drawable.baiqi,R.drawable.caocao,R.drawable.chengjisihan,                R.drawable.hanxin,R.drawable.lishimin,R.drawable.nuerhachi,                R.drawable.sunbin,R.drawable.sunwu,R.drawable.yuefei,                R.drawable.zhuyuanzhang        };        String[] names=getResources().getStringArray(R.array.generals);//R.array.generals是string.xml中定义的数组，        mGenerals=new ArrayList
       
        
         >();        HashMap
         
           general;        for (int i = 0; i < names.length; i++) {
   //List是一个集合，            general=new HashMap
          
           ();//集合里面是Map general.put(KEY_PHOTOID, resid[i]);//每一个Map里面放了2个键值对 general.put(KEY_NAME, names[i]); mGenerals.add(general); } }}

activity_main.xml

item_generals.xml

本文转自农夫山泉别墅博客园博客，原文链接：http://www.cnblogs.com/yaowen/p/4887182.html，如需转载请自行联系原作者