List View + Context Menu: Jedes List Item immer ID 3, aber warum???

1<?xml version="1.0" encoding="utf-8"?>
2<menu xmlns:android="http://schemas.android.com/apk/res/android">
3 <item android:id="@+id/edit"
4 android:title="@string/menu_context_edit" />
5 <item android:id="@+id/terminate"
6 android:title="@string/menu_context_terminate" />
7 <item android:id="@+id/delete"
8 android:title="@string/menu_context_delete" />
9</menu>

1public class VertraegeListe extends Activity {
2 // Constants
3 public static final String TAG = "VertraegeListe";
4 public static final int ACTIVITY_EDIT = 0;
5
6 // Variables
7 private VertraegeDBAdapter mDbHelper;
8 private ListView mAgreementList;
9
10 /** Called when the activity is first created. */
11 @Override
12 public void onCreate(Bundle savedInstanceState) {
13 Log.v(TAG, "Activity State: onCreate()");
14 super.onCreate(savedInstanceState);
15
16 // Initialize mDbHelper
17 mDbHelper = new VertraegeDBAdapter(this);
18 mDbHelper.open();
19
20 // Set layout for this Activity
21 setContentView(R.layout.vertraege_liste);
22
23 // Handling UI objects
24 mAgreementList = (ListView) findViewById(R.id.vertraege_liste);
25
26 // If agreements exist in database project them on list
27 fillData();
28
29 // Register agreement list for context menu (entry 1 => delete, entry 2 => delete, ...)
30 registerForContextMenu(mAgreementList);
31 }
32
33 // The menu, when a user touches a list element for a longer period
34 @Override
35 public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
36 super.onCreateContextMenu(menu, v, menuInfo);
37
38 AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo)menuInfo;
39
40 menu.setHeaderTitle("Aktivitäten [ list id "+info.position+"]");
41
42 MenuInflater inflater = getMenuInflater();
43 inflater.inflate(R.menu.menu_context, menu);
44 }
45
46 // The menu, when a user has touched a list element for a longer period
47 @Override
48 public boolean onContextItemSelected(MenuItem item) {
49 AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
50 switch (item.getItemId()) {
51 case R.id.edit:
52 editAgreement(info.id);
53 return true;
54 case R.id.terminate:
55 generateTermination(info.id);
56 return true;
57 case R.id.delete:
58 confirmDeletionOfAgreement(info.id);
59 return true;
60 default:
61 return super.onContextItemSelected(item);
62 }
63 }
64
65 /**
66 * Get agreements from database and project records on list
67 */
68 private void fillData() {
69 // Get all of the rows from the database and create the item list
70 Cursor mAgreementsCursor = mDbHelper.getAllAgreements();
71 startManagingCursor(mAgreementsCursor);
72
73 // Create an array to specify the fields we want to display in the list (only TITLE)
74 String[] from = new String[]{VertraegeDBAdapter.KEY_AGREEMENTNAME};
75
76 // and an array of the fields we want to bind those fields to (in this case just agreementEntryText)
77 int[] to = new int[]{R.id.agreementEntryText};
78
79 // Now create a simple cursor adapter and set it to display
80 SimpleCursorAdapter agreementsAdapter =
81 new SimpleCursorAdapter(this, R.layout.vertraege_datensatz, mAgreementsCursor, from, to);
82 mAgreementList.setAdapter(agreementsAdapter);
83 }
84}

1public class VertraegeListe extends ListActivity {
2 // Constants
3 public static final String TAG = "VertraegeListe";
4 public static final int ACTIVITY_EDIT = 0;
5
6 // Variables
7 private VertraegeDBAdapter mDbHelper;
8
9 /** Called when the activity is first created. */
10 @Override
11 public void onCreate(Bundle savedInstanceState) {
12 Log.v(TAG, "Activity State: onCreate()");
13 super.onCreate(savedInstanceState);
14
15 // Initialize mDbHelper
16 mDbHelper = new VertraegeDBAdapter(this);
17 mDbHelper.open();
18
19 // Set layout for this Activity
20 setContentView(R.layout.vertraege_liste);
21
22 // If agreements exist in database project them on list
23 fillData();
24
25 // Register agreement list for context menu (entry 1 => delete, entry 2 => delete, ...)
26 registerForContextMenu(getListView());
27 }
28
29 // The menu, when a user touches a list element for a longer period
30 @Override
31 public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
32 super.onCreateContextMenu(menu, v, menuInfo);
33
34 AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) menuInfo;
35
36 menu.setHeaderTitle("Aktivitäten [ list id "+info.position+"]");
37
38 MenuInflater inflater = getMenuInflater();
39 inflater.inflate(R.menu.menu_context, menu);
40 }
41
42 // The menu, when a user has touched a list element for a longer period
43 @Override
44 public boolean onContextItemSelected(MenuItem item) {
45 AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();
46 switch (item.getItemId()) {
47 case R.id.edit:
48 editAgreement(info.id);
49 return true;
50 case R.id.terminate:
51 generateTermination(info.id);
52 return true;
53 case R.id.delete:
54 confirmDeletionOfAgreement(info.id);
55 return true;
56 default:
57 return super.onContextItemSelected(item);
58 }
59 }
60
61 /**
62 * Get agreements from database and project records on list
63 */
64 private void fillData() {
65 // Get all of the rows from the database and create the item list
66 Cursor mAgreementsCursor = mDbHelper.getAllAgreements();
67 startManagingCursor(mAgreementsCursor);
68
69 // Create an array to specify the fields we want to display in the list (only TITLE)
70 String[] from = new String[]{VertraegeDBAdapter.KEY_AGREEMENTNAME};
71
72 // and an array of the fields we want to bind those fields to (in this case just agreementEntryText)
73 int[] to = new int[]{R.id.agreementEntryText};
74
75 // Now create a simple cursor adapter and set it to display
76 SimpleCursorAdapter agreements =
77 new SimpleCursorAdapter(this, R.layout.vertraege_datensatz, mAgreementsCursor, from, to);
78 setListAdapter(agreements);
79 }