In the logcat, you will see a barrage of red colored lines. find the class
that removes the listview. it will tell you on which line the error occured.
Kaustubh Padegaonkar,
thetuxra...@gmail.com
On Tue, Apr 27, 2010 at 8:18 AM, Justin Anderson <janderson....@gmail.com>wrote:
> Debug it and look at the logcat info... It will give you more information
> about the problem.
>
> ----------------------------------------------------------------------
> There are only 10 types of people in the world...
> Those who know binary and those who don't.
> ----------------------------------------------------------------------
>
>
>
> On Mon, Apr 26, 2010 at 8:31 PM, ajb468 <ajb...@gmail.com> wrote:
>
>> I am creating a sample example from a book. Its called "To Do List."
>> I'm at the point where I am working with the Options menu. I have the
>> options of adding and removing an item to a list. I can add items to a
>> list but every time I remove an item, the program "Stopped
>> Unexpectedly." Everything in my code seems to be fine. Ill show a few
>> sections of the code that have to do with the view.
>>
>> static final private int ADD_NEW_TODO = Menu.FIRST;
>> static final private int REMOVE_TODO = Menu.FIRST + 1;
>> private boolean addingNew = false; // True if myEditText is visible.
>> False if not.
>> private ArrayList<String> todoItems;
>> private ListView myListView;
>> private EditText myEditText;
>> private ArrayAdapter<String> aa;
>>
>>
>> @Override
>> public void onCreate(Bundle savedInstanceState) {
>> super.onCreate(savedInstanceState);
>> setContentView(R.layout.main);
>> myListView = (ListView) findViewById(R.id.myListView);
>> myEditText = (EditText) findViewById(R.id.myEditText);
>> todoItems = new ArrayList<String>();
>> int resID = R.layout.todolist_item;
>> final ArrayAdapter<String> aa;
>> aa = new ArrayAdapter<String>(this, resID, todoItems);
>> myListView.setAdapter(aa);
>> registerForContextMenu(myListView);
>> myEditText.setOnKeyListener(new OnKeyListener() {
>> public boolean onKey(View v, int keyCode, KeyEvent
>> event) {
>> if (event.getAction() ==
>> KeyEvent.ACTION_DOWN)
>> if (keyCode == KeyEvent.KEYCODE_1)
>> {
>> todoItems.add(0,
>> myEditText.getText().toString());
>> myEditText.setText("");
>> aa.notifyDataSetChanged();
>> cancelAdd();
>> return true;
>> }
>> return false;
>> }
>> });
>> }
>>
>>
>> @Override
>> public boolean onCreateOptionsMenu(Menu menu) {
>> super.onCreateOptionsMenu(menu);
>> // Create and add new menu items.
>> MenuItem itemAdd = menu.add(0, ADD_NEW_TODO, Menu.NONE,
>> R.string.add_new);
>> MenuItem itemRem = menu.add(0, REMOVE_TODO, Menu.NONE,
>> R.string.remove);
>> // Assign icons
>> itemAdd.setIcon(R.drawable.add_new_item);
>> itemRem.setIcon(R.drawable.remove_item);
>> // Allocate shortcuts to each of them.
>> itemAdd.setShortcut('0', 'a');
>> itemRem.setShortcut('1', 'r');
>> return true;
>> }
>>
>>
>> @Override
>> public boolean onOptionsItemSelected(MenuItem item) {
>> super.onOptionsItemSelected(item);
>> int index = myListView.getSelectedItemPosition();
>> switch (item.getItemId()) {
>> case (REMOVE_TODO): {
>> if (addingNew) {
>> cancelAdd();
>> } else {
>> removeItem(index);
>> }
>> return true;
>> }
>> case (ADD_NEW_TODO): {
>> addNewItem();
>> return true;
>> }
>> }
>> return false;
>> }
>>
>>
>> private void removeItem(int _index) {
>> todoItems.remove(0);
>> aa.notifyDataSetChanged();
>> }
>>
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>
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