سلام و خدا قوت
دوستان این دیتابیس که دریافت کردم و قتی اجراش میکنم تو مسیر مربوطه کپی نمیشه...لطفا راهنمایی بفرمایید..
package com.example.dbtest2;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import android.content.Context;
import android.database.Cursor;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
public class databse extends SQLiteOpenHelper {
public final String path="data/data/com.example.dbtest2/databases/";
public final String Name="dbtest";
public SQLiteDatabase mydb;
private final Context mycontext;
public databse(Context context) {
super(context, "dbtest", null, 1);
mycontext=context;
}
@Override
public void onCreate(SQLiteDatabase arg0) {
// TODO Auto-generated method stub
}
@Override
public void onUpgrade(SQLiteDatabase arg0, int arg1, int arg2) {
// TODO Auto-generated method stub
}
public void database(){
boolean checkdb=checkdb();
if(checkdb){
}else{
this.getReadableDatabase();
try{
copydatabase();
}catch(IOException e){
}
}
}
public void open(){
mydb=SQLiteDatabase.openDatabase(path+Name, null, SQLiteDatabase.OPEN_READWRITE);
}
public void close(){
mydb.close();
}
public boolean checkdb(){
SQLiteDatabase db=null;
try{
db=SQLiteDatabase.openDatabase(path+Name, null, SQLiteDatabase.OPEN_READONLY);
}
catch(SQLException e)
{
}
return db !=null ? true:false ;
}
public void copydatabase() throws IOException{
OutputStream myOutput = new FileOutputStream(path+Name);
byte[] buffer = new byte[1024];
int length;
InputStream myInput = mycontext.getAssets().open("dbtest");
while ((length = myInput.read(buffer)) > 0) {
myOutput.write(buffer, 0, length);
}
myInput.close();
myOutput.flush();
myOutput.close();
}
public String Display(int row,int fild){
Cursor cu= mydb.query("users", null, null, null, null, null, null);
cu.moveToPosition(row);
String name=cu.getString(fild);
return name;
}
}
main
package com.example.dbtest2;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
public class Main extends Activity {
private databse db;
private Button btn;
private TextView txt1;
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
db=new databse(this);
db.database();
db.open();
txt1=(TextView) findViewById(R.id.txt1);
btn=(Button) findViewById(R.id.btn1);
btn.setOnClickListener(new OnClickListener(){
public void onClick(View arg0) {
txt1.setText(db.Display(1, 1));
}
});
}
}
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