1
我对Android很陌生,我有一个小问题。 我的ContextMenu有问题。我已经填充我的ListView与我的数据库条目,现在我魔杖,如果我longclick它,ContextMenu弹出,那里我想要删除或编辑我的数据库条目: 但我不明白我怎么可以找出什么entrie它是。如何从SimpleCursorAdapter获取信息到ContextMenu
这里是我的代码..
package de.retowaelchli.filterit.stats;
import de.retowaelchli.filterit.R;
import de.retowaelchli.filterit.database.ADFilterDBAdapter;
import android.app.ListActivity;
import android.database.Cursor;
import android.os.Bundle;
import android.view.ContextMenu;
import android.view.ContextMenu.ContextMenuInfo;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.SimpleCursorAdapter;
public class CreatedADFilters extends ListActivity {
//Variablen deklaration
private ADFilterDBAdapter mDbHelper;
public void onCreate(Bundle icicle) {
super.onCreate(icicle);
//Kontext-Menu registrieren
registerForContextMenu(findViewById(R.layout.list_layout));
//Hier wir die Datenbank aufgerufen
mDbHelper = new ADFilterDBAdapter(this);
mDbHelper.open();
fillData();
}
private void fillData() {
// Get all of the notes from the database and create the item list
Cursor c = mDbHelper.getAllADFilter();
startManagingCursor(c);
String[] from = new String[] { ADFilterDBAdapter.NAME, ADFilterDBAdapter.ROW_ID };
int[] to = new int[] { R.id.label };
// Now create an array adapter and set it to display using our row
SimpleCursorAdapter adname =
new SimpleCursorAdapter(this, R.layout.list_layout, c, from, to);
setListAdapter(adname);
mDbHelper.close();
}
//ContextMenu erstellen und definieren
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
if (v.getId() == R.layout.list_layout) {
getMenuInflater().inflate(R.menu.createdadmenu, menu);
}
super.onCreateContextMenu(menu, v, menuInfo);
}
public boolean onContextItemSelected(MenuItem item) {
final AdapterView.AdapterContextMenuInfo info =
(AdapterView.AdapterContextMenuInfo) item.getMenuInfo();
switch (item.getItemId()) {
case R.id.delete_adfilter: {
deleteAD();
return true;
}
case R.id.edit_adfilter:{
editAD();
return true;
}
return super.onContextItemSelected(item);
}
}
// THIS IS THE PART I DONT KNOW HOW TO REALIZE
private void deleteAD(){
}
private void editAD(){
}
}
THX为你提前帮助!
问候
野生动物园
Thx你,我现在在Github上关注你很好的Project Samples! THX为您提供帮助! – safari