DBHelper.java

package com.icss.DBHelper;

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

/**
 * 建立一个数据库帮助类
 */
public class DBHelper extends SQLiteOpenHelper {
	// download.db-->数据库名
	public DBHelper(Context context) {
		super(context, "download.db", null, 1);
	}

	/**
	 * 在download.db数据库下创建一个download_info表存储下载信息
	 */
	@Override
	public void onCreate(SQLiteDatabase db) {
		db.execSQL("create table download_info(_id integer PRIMARY KEY AUTOINCREMENT, thread_id integer, "
				+ "start_pos integer, end_pos integer, compelete_size integer,url char)");
	}

	@Override
	public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {

	}

}