Need serious help with android todolist anyone could help please. I am trying to remove the last item inserted in the list it doesn't work for some reasons. please help if you can see the below:
public class ToDoList extends Activity implements OnClickListener, OnKeyListener {
Button btnRemove;
ArrayList<String> todoItems;
ArrayAdapter<String> aa;
ListView myListView ;
EditText myEditText ;
@Override public void onCreate(Bundle icicle) { super.onCreate(icicle);
// Inflate your view
setContentView(R.layout.main);
// Get references to UI widgets
myListView = (ListView)findViewById(R.id.myListView);
myEditText = (EditText)findViewById(R.id.myEditText);
// Create the ArrayList and the ArrayAdapter
todoItems = new ArrayList<String>();
aa = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1,todoItems);
// Bind the listview to the array adapter
myListView.setAdapter(aa);
btnRemove = (Button)findViewById(R.id.btnRemove);
// Add key listener to add the new todo item
// when the middle D-pad button is pressed.
myEditText.setOnKeyListener(new OnKeyListener() {
public boolean onKey(View v, int keyCode, KeyEvent event) {
if (event.getAction() == KeyEvent.ACTION_DOWN)
if (keyCode == KeyEvent.KEYCODE_DPAD_CENTER) {
// Add the new todo item, and clear the input text box
todoItems.add(0, myEditText.getText().toString());
myEditText.setText("");
aa.notifyDataSetChanged();
return true;
}
return false;
}
});
}
@Override public void onClick(View v) { if(v == btnRemove){ if(todoItems.size() > 0){ todoItems.remove(todoItems.size() - 1); aa.notifyDataSetChanged(); }
} } @Override public boolean onKey(View v, int keyCode, KeyEvent event) { // TODO Auto-generated method stub return false; }
}