Databases
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POHow to use id from the db to use it for a ListAdapter?
 

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  1. POHow to use id from the db to use it for a ListAdapter?
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    <p>So I am using a ListActivity to see every records information except _id from the db. How can I place id from the database to a ListAdapter and use it to Delete the same id record from the database?</p> <p>Scroll down to see my script.</p> <pre><code>import java.util.ArrayList; import android.app.ListActivity; import android.database.Cursor; import android.database.sqlite.SQLiteDatabase; import android.database.sqlite.SQLiteException; import android.os.Bundle; import android.util.Log; import android.view.View; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.ListView; import android.widget.AdapterView.OnItemClickListener; import android.widget.TextView; import android.widget.Toast; public class PrivateHistory extends ListActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); ArrayList&lt;String&gt; results = new ArrayList&lt;String&gt;(); final ArrayList&lt;String&gt; resultsID = new ArrayList&lt;String&gt;(); DatabaseHelper dbHelper = new DatabaseHelper(this); final SQLiteDatabase db = dbHelper.getReadableDatabase(); try { Cursor c = db.rawQuery("SELECT * FROM pocket", null); if(c != null ) { if(c.moveToLast()) { do { String incompleteDate = c.getString(c.getColumnIndex("date")); String year = incompleteDate.substring(0, 4); String month = incompleteDate.substring(5, 7); String day = incompleteDate.substring(8, 10); String date = day + "-" + month + "-" + year; String id = c.getString(c.getColumnIndex("_id")); String time = c.getString(c.getColumnIndex("time")); String income = c.getString(c.getColumnIndex("income")); String cost = c.getString(c.getColumnIndex("cost")); if(income.equals("0.00")){ resultsID.add(id); results.add("Date:" + date + " Time:" + time +"\nCost\t\t: € -" + cost); } if (cost.equals("0.00")){ resultsID.add(id); results.add("Date:" + date + " Time:" + time +"\nIncome\t: € " + income); } }while (c.moveToPrevious()); } } ListView lv = getListView(); lv.setOnItemClickListener(new OnItemClickListener() { public void onItemClick(AdapterView&lt;?&gt; parent, View view,int position, long id) { Toast.makeText(getApplicationContext(), ((TextView) view).getText(), Toast.LENGTH_SHORT).show(); } }); this.setListAdapter(new ArrayAdapter&lt;String&gt;(this, android.R.layout.simple_list_item_1,results)); } catch (SQLiteException se ) { Log.e(getClass().getSimpleName(), "Could not create or Open the database"); } } } </code></pre>
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