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POProgrammatically change listview so that it is checkable
 

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  1. POProgrammatically change listview so that it is checkable
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    <p>I've made a decent effort to find a similar question and failed, so please forgive me if this is redundant pollution.</p> <p>I have a ListView and an ImageButton defined in the xml file "my_layout" corresponding to my Activity as follows:</p> <pre><code>&lt;ListView android:id="@+id/listViewItems" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_weight="1" &gt;&lt;/ListView&gt; </code></pre> <p>and</p> <pre><code>&lt;ImageButton android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/btn_delete_dark" android:id="@+id/buttonDelete" android:layout_weight="1"&gt; &lt;/ImageButton&gt; </code></pre> <p>I then populate the ListView programmatically in the onCreate() method of my Activity as follows:</p> <p>public class ViewItemsActivity extends Activity implements OnClickListener, OnItemClickListener{</p> <pre><code>ImageButton buttonDelete; ListView listViewItems; DatabaseHandler dbHandler; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.my_layout); buttonDeleteQuestion = (ImageButton) findViewById(R.id.buttonDelete); listViewQuestions = (ListView) findViewById(R.id.listViewItems); buttonDelete.setOnClickListener(this); //get data from sql table containing items dbHandler = new DatabaseHandler(this); String [] items = dbHandler.getItems(); //get data to populate ListView CustomAdapter adapter = new CustomAdapter(this, android.R.layout.simple_list_item_1, items); listViewItems.setAdapter(adapter); listViewItems.setOnItemClickListener(this); } @Override public void onClick(View v) { switch (v.getId()) { case R.id.buttonDelete: listViewItems.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE); listViewItems.setItemChecked(0, true); break; //other cases are irrelevant } } @Override public void onItemClick(AdapterView&lt;?&gt; parent, View v, int pos, long id) { // TODO Auto-generated method stub //non relevant code } </code></pre> <p>}</p> <p>Everything works as it should except that I want the ListView to change, in appearance and functionality, as a result of clicking buttonDelete, so that it displays checkmarks to the right of each row which can be checked by clicking on them.</p> <p>It was my understanding that setChoiceMode(ListView.MULTIPLE_CHOICE) and setItemChecked(i,true) would have this effect, but clearly I've missed something as it does not.</p> <p>I am quite new to android and so it is possible that I've wasted someone's time with trivialities, for which I apologize.</p> <p>Thank you very much.</p>
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