?為什么我的崩掉了。。。。。。。。。??
package com.imooc.slidingmenu;
import android.app.Activity;
import android.os.Bundle;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* Created by cherry on 2016/12/11.
*/
public class ForumActivity extends Activity{
? ?private ListView listView;
? ?private SimpleAdapter simp_adapter;
? ?private List<Map<String,Object>> dataList;
? ?@Override
? ?protected void onCreate(Bundle savedInstanceState) {
? ? ? ?super.onCreate(savedInstanceState);
? ? ? ?setContentView(R.layout.forum);
? ? ? ?listView = (ListView)findViewById(R.id.forum_list);
? ? ? ?simp_adapter= new SimpleAdapter(this,getData(),R.layout.forumitem,new String[]{"icon","name"},new int[]{R.id.user_icon,R.id.user_name});
? ? ? ?listView.setAdapter(simp_adapter);
? ?}
? ?private List<Map<String,Object>> getData(){
? ? ? ?for(int i=0;i<20;i++){
? ? ? ? ? ?Map<String,Object> map= new HashMap<String,Object>();
? ? ? ? ? ?map.put("icon",R.drawable.ic_launcher);
? ? ? ? ? ?map.put("name","用戶"+i);
? ? ? ? ? ?dataList.add(map);
? ? ? ?}
? ? ? ?return dataList;
? ?}
}
2016-12-11
dataList需要實例化:dataList=new ArrayList<Map<String, Object>>();