Android 数据库与MapView总结

核心提示：dbHelper.close();}intent.setClass(EX10_06_02.this, EX10_06_03.class);startActivity(intent);finish();break;case (MENU_DRAW):if(dbHelper!=null&&dbHelper.getReadab

dbHelper.close();

}

intent.setClass(EX10_06_02.this, EX10_06_03.class);

startActivity(intent);

finish();

break;

case (MENU_DRAW):

if(dbHelper!=null&&dbHelper.getReadableDatabase().isOpen()){

dbHelper.close();

}

intent.setClass(EX10_06_02.this, EX10_06_04.class);

startActivity(intent);

finish();

break;

}

return super.onOptionsItemSelected(item);

}

@Override

protected void onResume() {

// TODO Auto-generated method stub

super.onResume();

}

@Override

protected void onPause() {

// TODO Auto-generated method stub

super.onPause();

}

@Override

protected void onDestroy() {

if(dbHelper!=null&&dbHelper.getReadableDatabase().isOpen()){

dbHelper.close();

}

super.onDestroy();

}

}

3。编辑餐馆

Java代码

package irdc.ex10_06;

import java.util.ArrayList;

import java.util.List;

import android.app.Activity;

import android.app.AlertDialog;

import android.app.Dialog;

import android.content.DialogInterface;

import android.content.Intent;

import android.content.DialogInterface.OnClickListener;

import android.database.Cursor;

import android.os.Bundle;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

import android.view.Window;

import android.view.WindowManager;

import android.widget.AdapterView;

import android.widget.ArrayAdapter;

import android.widget.Button;

import android.widget.EditText;