怎么对ListView添加点击事件，每行点击都打开一个新的Activity。
============问题描述============
package com.example.one_listview;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import android.os.Bundle;
import android.app.Activity;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
public class MainActivity extends Activity
{
private ListView lv;
private List<Map<String, Object>> data;
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
lv = (ListView)findViewById(R.id.lv);
data = getData();
MyAdapter adapter = new MyAdapter(this);
lv.setAdapter(adapter);
}
private List<Map<String, Object>> getData()
{
List<Map<String, Object>> list = new ArrayList<Map<String, Object>>();
Map<String, Object> map = new HashMap<String, Object>();
map.put("title", "校园回忆");
map.put("info", "青春是人生的实验课，错也错得很值得。from 《笑忘歌》");
map.put("img", R.drawable.one_1);
list.add(map);
map = new HashMap<String, Object>();
map.put("title", "迷离者");
map.put("info", "若不问来路与去程，人生就容易得多。by 陶立夏");
map.put("img", R.drawable.one_2);
list.add(map);
map = new HashMap<String, Object>();
map.put("title", "孤独地像一颗星球");
map.put("info", "所有的悲伤，总会留下一丝欢乐的线索。所有的遗憾，总会留下一处完美的角落。我在冰封的深海，找寻希望的缺口。却在午夜惊醒时，蓦然瞥见绝美的月光。from 《缺口》");
map.put("img", R.drawable.one_3);
list.add(map);
map = new HashMap<String, Object>();
map.put("title", "在我成为独行侠之前");
map.put("info", "当我沉默地面对着你，你又怎么知道我曾在心里对你说了多少话。当我一成不变地站在你面前，你又怎么知道我内心早已为你千回百转。 by 里则林");
map.put("img", R.drawable.one_4);
list.add(map);
return list;
}
static class ViewHolder
{
public ImageView img;
public TextView title;
public TextView info;
}
public class MyAdapter extends BaseAdapter
{
private LayoutInflater mInflater = null;
private MyAdapter(Context context)
{
this.mInflater = LayoutInflater.from(context);
}
public int getCount()
{
return data.size();
}
public Object getItem(int position)
{
return position;
}
public long getItemId(int position)
{
return position;
}
public View getView(int position, View convertView, ViewGroup parent)
{
ViewHolder holder = null;
if(convertView == null)
{
holder = new ViewHolder();
convertView = mInflater.inflate(R.layout.list_item, null);
holder.img = (ImageView)convertView.findViewById(R.id.img);
holder.title = (TextView)convertView.findViewById(R.id.tv);
holder.info = (TextView)convertView.findViewById(R.id.info);
convertView.setTag(holder);
}
else
{
holder = (ViewHolder)convertView.getTag();
}
holder.img.setBackgroundResource((Integer)data.get(position).get("img"));
holder.title.setText((String)data.get(position).get("title"));
holder.info.setText((String)data.get(position).get("info"));
return convertView;
lv.setOnItemClickListener(new OnItemClickListener()
{
@Override
public void onItemClick(AdapterView<?>parent , View view , int position , long id)
{
//想不明白了。如何补充。
}
});
}
}
}
============解决方案1============
lv.setOnItemClickListener(new OnItemClickListener()
{
@Override
public void onItemClick(AdapterView<?>parent , View view , int position , long id)
{
//想不明白了。如何补充。
在这里面直接打开activity就可以了 如果想传递当前item的数据可以 使用data.get(position)来获取当前item的数据
}
});
============解决方案2============
lv.setOnItemClickListener
写在onCreate里
============解决方案3============
onItemClick这个不要写在Adapter里。。如众楼上所说，加个item的listener就行了，在监听器里override一个oncreat，在oncreat里加上intent就行了
============解决方案4============
监听里面加上Intent（)直接进行跳转就可以了
