二级列表展示数据库查询

package com.bawei.lian2;

import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

import com.bawei.vo.Good;
import com.bawei.vo.Info;
import com.google.gson.Gson;

import android.os.Bundle;
import android.app.Activity;
import android.database.sqlite.SQLiteDatabase;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ExpandableListView;
import android.widget.ExpandableListView.OnChildClickListener;

public class MainActivity extends Activity {
public static final String URL="http://www.hengboit.com/json/json_search.php?wd=";
private EditText editText;
private Button button;
private ExpandableListView elv;
private SQLiteDatabase db;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
editText = (EditText) findViewById(R.id.edittext);
button = (Button) findViewById(R.id.button);
elv = (ExpandableListView) findViewById(R.id.elv);
MySqliteHelper helper=new MySqliteHelper(MainActivity.this,"ss",null,1);
db = helper.getWritableDatabase();
button.setOnClickListener(new OnClickListener() {

@Override
public void onClick(View v) {
// TODO Auto-generated method stub
String name = editText.getText().toString();
init(name);
}
});

}
private void init(final String name) {
// TODO Auto-generated method stub
new Thread(){
private Set<String> set;

public void run() {
String st=NetWork.geturl("http://www.hengboit.com/json/json_search.php?wd="+name);
Gson gson=new Gson();
Good good = gson.fromJson(st, Good.class);
List<Info> info = good.getInfo();
set = new HashSet<String>();
for(int i=0;i<info.size();i++){
set.add(info.get(i).getCtitle());
}

final List<String> list=new ArrayList<String>();
list.addAll(set);
for(int i=0;i<list.size();i++){
String s = list.get(i);
db.execSQL("insert into user values(null,?)",new Object[]{s});
}
for(int i=0;i<info.size();i++){
String cid = info.get(i).getCid();
String ctime = info.get(i).getCtime();
String ctitle = info.get(i).getCtitle();
String id = info.get(i).getId();
String descript = info.get(i).getDescript();
String picurl = info.get(i).getPicurl();
String title = info.get(i).getTitle();
String type = info.get(i).getType();
db.execSQL("insert into good values(?,?,?,?,?,?,?,?)",new Object[]{id,cid,ctime,ctitle, descript,picurl,title,type});

}
runOnUiThread( new Runnable() {
public void run() {
Shipei adapter=new Shipei(MainActivity.this,list);
elv.setAdapter(adapter);
elv.setOnChildClickListener(new OnChildClickListener() {

@Override
public boolean onChildClick(ExpandableListView parent, View v,
int groupPosition, int childPosition, long id) {
// TODO Auto-generated method stub

return false;
}
});
}
});
};
}.start();
}

}

package com.bawei.lian2;

import java.util.ArrayList;
import java.util.List;

import com.bawei.vo.Info;
import com.lidroid.xutils.BitmapUtils;

import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseExpandableListAdapter;
import android.widget.ImageView;
import android.widget.TextView;

public class Shipei extends BaseExpandableListAdapter{
Context context;
List<String> list;
private SQLiteDatabase db;

public Shipei(Context context, List<String> list) {
// TODO Auto-generated constructor stub
this.context=context;
this.list=list;
MySqliteHelper helper=new MySqliteHelper(context,"ss",null,1);
db = helper.getWritableDatabase();
}

@Override
public Object getChild(int groupPosition, int childPosition) {
// TODO Auto-generated method stub
return null;
}

@Override
public long getChildId(int groupPosition, int childPosition) {
// TODO Auto-generated method stub
return 0;
}

@Override
public View getChildView(int groupPosition, int childPosition,
boolean isLastChild, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
String name = list.get(groupPosition);
Cursor c = db.rawQuery("select * from good where ctitle=?", new String[]{name});
List<Info> li=new ArrayList<Info>();
while(c.moveToNext()){
String cid=c.getString(c.getColumnIndex("cid"));
String ctime=c.getString(c.getColumnIndex("ctime"));
String ctitle=c.getString(c.getColumnIndex("ctitle"));
String descript=c.getString(c.getColumnIndex("descript"));
String id=c.getString(c.getColumnIndex("id"));
String picurl=c.getString(c.getColumnIndex("picurl"));
String title=c.getString(c.getColumnIndex("title"));
String type=c.getString(c.getColumnIndex("type"));
li.add(new Info(cid, ctime, ctitle, descript, id, picurl, title, type));
}
View view=View.inflate(context, R.layout.bu, null);
ImageView img=(ImageView) view.findViewById(R.id.img);
TextView tv_title=(TextView) view.findViewById(R.id.tv_title);
TextView tv_desc=(TextView) view.findViewById(R.id.tv_desc);
TextView tv_time=(TextView) view.findViewById(R.id.tv_time);
Info in = li.get(childPosition);
tv_title.setText(in.getTitle());
tv_desc.setText(in.getDescript());
tv_time.setText(in.getCtitle());

BitmapUtils bit=new BitmapUtils(context);
bit.display(img,in.getPicurl());

return view;
}

@Override
public int getChildrenCount(int groupPosition) {
// TODO Auto-generated method stub
String name = list.get(groupPosition);
Cursor c = db.rawQuery("select * from good where ctitle=?", new String[]{name});
return c.getCount();
}

@Override
public Object getGroup(int groupPosition) {
// TODO Auto-generated method stub
return null;
}

@Override
public int getGroupCount() {
// TODO Auto-generated method stub
Cursor c = db.rawQuery("select * from user ", new String[]{});
return c.getCount();

}

@Override
public long getGroupId(int groupPosition) {
// TODO Auto-generated method stub
return 0;
}

@Override
public View getGroupView(int groupPosition, boolean isExpanded,
View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
Cursor c = db.rawQuery("select * from user ", new String[]{});
List<String> l=new ArrayList<String>();
while(c.moveToNext()){
String st = c.getString(c.getColumnIndex("ctitle"));
l.add(st);
}
View view=View.inflate(context, android.R.layout.simple_expandable_list_item_1, null);
TextView textView=(TextView) view.findViewById(android.R.id.text1);
textView.setText(l.get(groupPosition));
return view;
}

@Override
public boolean hasStableIds() {
// TODO Auto-generated method stub
return false;
}

@Override
public boolean isChildSelectable(int groupPosition, int childPosition) {
// TODO Auto-generated method stub
return true;
}

}

package com.bawei.lian2;

import android.content.Context;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteDatabase.CursorFactory;
import android.database.sqlite.SQLiteOpenHelper;

public class MySqliteHelper extends SQLiteOpenHelper{

public MySqliteHelper(Context context, String name, CursorFactory factory,
int version) {
super(context, name, factory, version);
// TODO Auto-generated constructor stub
}

@Override
public void onCreate(SQLiteDatabase db) {
// TODO Auto-generated method stub
db.execSQL("create table user(id integer primary key autoincrement, ctitle varchar(50))");
db.execSQL("create  table good(id varchar(50) , cid varchar(50),ctime varchar(50),ctitle varchar(50),descript varchar(100),picurl varchar(100), title varchar(100),type varchar(50))");
}

@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
// TODO Auto-generated method stub

}

}