对应的Activity代码:
public class SqLiteDemoActivity extends Activity {
private Button btn1=null;
private Button btn2=null;
private Button btn3=null;
private Button btn4=null;
private Button btn5=null;
private Button btn6=null;
private TextView datatxt=null;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
btn1=(Button)findViewById(R.id.btn);
btn1.setOnClickListener(new OnClickListener(){
public void onClick(View v) {
// TODO Auto-generated method stub
System.out.println("the db is create");
SqlHelper db=new SqlHelper(SqLiteDemoActivity.this, "myhome.db");
db.getWritableDatabase();
Toast.makeText(SqLiteDemoActivity.this, "db", Toast.LENGTH_LONG).show();
}
});
btn2=(Button)findViewById(R.id.btn2);
btn2.setOnClickListener(new OnClickListener(){
public void onClick(View v) {
// TODO Auto-generated method stub
SqlHelper db=new SqlHelper(SqLiteDemoActivity.this, "myhome.db",3);
db.getWritableDatabase();
System.out.println("db is update");
db.close();
}
});