本文共 5747 字，大约阅读时间需要 19 分钟。

MainActivity如下:

package cc.testlistview;import java.util.ArrayList;import java.util.HashMap;import android.os.Bundle;import android.view.View;import android.widget.AdapterView;import android.widget.AdapterView.OnItemClickListener;import android.widget.ListView;import android.app.Activity;/** * Demo描述: * 为ListView的Item设置不同的布局. * 例如在该例子中ListView的第一个Item显示一张 * 图片,其余的Item都显示文字. *  * 为了达到此目的需要重写BaseAdapter中的 * 1 getViewTypeCount()和getItemViewType(int position)方法. *   1.1在getViewTypeCount中指定一共有几种不同的item *      在此返回2即可. *   1.2在getItemViewType(int position)中需要依据position的不同 *      返回不同的Type. * 2 在getView()方法中针对不同的Type为Item设置布局 *   2.1得到当前位置(position)时的Type即代码: *       currentType= getItemViewType(position); *   2.2依据Type的不同为Item设置布局 *  * 参考资料: * 1 http://blog.csdn.net/yueyue369/article/details/6115552 * 2 http://blog.sina.com.cn/s/blog_5da93c8f0100wx4v.html *   Thank you very much */public class MainActivity extends Activity {    private ListView mListView;    private HashMap
   
     mHashMap;	private ArrayList
    
     
      > mArrayList;	@Override	protected void onCreate(Bundle savedInstanceState) {		super.onCreate(savedInstanceState);		setContentView(R.layout.main);		init();	}	private void init(){		mArrayList=new ArrayList
      
       
        >();		mListView=(ListView) findViewById(R.id.listview);		addDataForListView();		mListView.setAdapter		(new ListViewAdapter(MainActivity.this, mArrayList, R.layout.othersitem, new String []{"content"}, new int []{R.id.textView}));		mListView.setOnItemClickListener(new ItemClickListenerImpl());	}	private void addDataForListView(){		for (int i = 0; i < 30; i++) {			mHashMap=new HashMap
        
         (); mHashMap.put("content", "This is ---> "+i); mArrayList.add(mHashMap); } } private class ItemClickListenerImpl implements OnItemClickListener { @Override public void onItemClick(AdapterView
          parent, View view, int position,long arg) { System.out.println("OnItemClickListener position="+position); } }}
        
       
      
     
    
   

package cc.testlistview;import java.util.List;import java.util.Map;import android.content.Context;import android.view.LayoutInflater;import android.view.View;import android.view.View.OnClickListener;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.ImageView;import android.widget.TextView;public class ListViewAdapter extends BaseAdapter {	private List
   > mArrayList;	private int resource;	private LayoutInflater mLayoutInflater;		private final int TYPE_COUNT=2;	private final int FIRST_TYPE=0;	private final int OTHERS_TYPE=1;	private int currentType;	public ListViewAdapter(Context context,List
   > data, int resource, String[] from,int[] to) {		this.mArrayList=data;		this.resource=resource;		mLayoutInflater=(LayoutInflater) context.getSystemService(context.LAYOUT_INFLATER_SERVICE);	}		@Override	public int getCount() {		if (mArrayList==null) {			return 0;		} else {			return (mArrayList.size()+1);		}			}		@Override	public Object getItem(int position) {		if (mArrayList==null) {			return null;		} else {			if (position>0) {				return mArrayList.get(position-1);			} else {				return mArrayList.get(position+1);			}		}	}		@Override	public long getItemId(int position) {		return position;	}		///	@Override	public int getViewTypeCount() {		return TYPE_COUNT;	}		@Override	public int getItemViewType(int position) {		if (position==0) {			return FIRST_TYPE;		} else {			return OTHERS_TYPE;		}	}   ///	    @Override	public View getView(int position, View convertView, ViewGroup parent) {		View firstItemView = null;	    View othersItemView=null;	    //获取到当前位置所对应的Type	    currentType= getItemViewType(position);	    System.out.println("type="+currentType);		if (currentType== FIRST_TYPE) {			firstItemView = convertView;			FirstItemViewHolder firstItemViewHolder=null;			if (firstItemView==null) {				System.out.println("firstItemView==null ");				firstItemView = mLayoutInflater.inflate(R.layout.firstitem,null);				firstItemView.setOnClickListener(new OnClickListener() {					@Override					public void onClick(View view) {						System.out.println("=====click first item=======");					}				});				firstItemViewHolder=new FirstItemViewHolder();				firstItemViewHolder.imageView=(ImageView) firstItemView.findViewById(R.id.imageView);				firstItemView.setTag(firstItemViewHolder);			} else {				System.out.println("firstItemView!=null ");				System.out.println("111 getClass="+firstItemView.getTag().getClass().toString());				firstItemViewHolder=(FirstItemViewHolder) firstItemView.getTag();			}						if (firstItemViewHolder.imageView!=null) {				firstItemViewHolder.imageView.setImageResource(R.drawable.ic_launcher);			}						convertView=firstItemView;		} else {			othersItemView = convertView;			OthersViewHolder othersViewHolder=null;			if (othersItemView==null) {				System.out.println("othersItemView==null ");				othersItemView = mLayoutInflater.inflate(R.layout.othersitem,null);				othersViewHolder=new OthersViewHolder();				othersViewHolder.textView=(TextView) othersItemView.findViewById(R.id.textView);				othersItemView.setTag(othersViewHolder);			} else {				System.out.println("othersItemView!=null ");				System.out.println("222 getClass="+othersItemView.getTag().getClass().toString());				othersViewHolder=(OthersViewHolder) othersItemView.getTag();			}						if (mArrayList!=null) {				if (othersViewHolder.textView!=null) {					othersViewHolder.textView.setText((String)(mArrayList.get(position-1).get("content")));				}							}						convertView=othersItemView;		}		return convertView;	}          //第一个Item的ViewHolder    private class FirstItemViewHolder{    	ImageView imageView;    }        //除第一个Item以外其余Item的ViewHolder    private class OthersViewHolder{    	TextView textView;    }}

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