second activity

import android.app.Activity;
import android.database.Cursor;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.SimpleCursorAdapter;
import android.widget.Toast;

public class SecondActivity extends Activity {

    EditText et1;
    EditText et2;
    String et1text;
    String et2text;
    ListView lv;
    Database database;
    SimpleCursorAdapter adapter;
    int pr;
    String na;

    //@SuppressWarnings("deprecation")
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_second);

        et1 = (EditText)findViewById(R.id.editText1);
        et2 = (EditText)findViewById(R.id.editText2);
        lv = (ListView)findViewById(R.id.listView1);

        database = new Database(this);
        Cursor cursor = database.getAllProducts();

        adapter = new Adapter(this, R.layout.peak_item, cursor, new String[] { "name", "price" }, new int[] { R.id.textView1, R.id.textView2 });

        lv.setAdapter(adapter);
        //lv.setClickable(true);
        //lv.setFocusable(false);

        lv.setOnItemClickListener(new OnItemClickListener() {
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                database.deleteProduct(id);//create removemethod in database class
                adapter.getCursor().requery();
                Toast.makeText(SecondActivity.this, "clicked", Toast.LENGTH_SHORT).show();
            }
        });

    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }

public void myClick(View v) {
        //database.deleteProduct(2);
        Toast.makeText(getApplicationContext(), v+"  Element: ", Toast.LENGTH_LONG).show();

    }



    @SuppressWarnings("deprecation")
    public void onClick(View v) {

        na = et1.getText().toString();
        et2text = et2.getText().toString();
        try {
            pr = Integer.parseInt(et2text);
        } catch(NumberFormatException nfe) {
           System.out.println("Could not parse " + nfe);
        }
        database.addProduct(na, pr);
        adapter.getCursor().requery();
    }

}




////////////////////////////////////////////////////////////////
LAYOUT



<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <ListView
        android:id="@+id/listView1"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="0.2" >
    </ListView>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="0.9" >

        <EditText
            android:id="@+id/editText1"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:ems="10"
            android:hint="name1" />

        <EditText
            android:id="@+id/editText2"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:ems="10"
            android:hint="price"
            android:inputType="number" />

    </LinearLayout>

    <Button
        android:id="@+id/button1"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="0.9"
        android:onClick="onClick"
        android:text="Button" />

</LinearLayout>