Your content must have a ListView whose id attribute is 'android.R.id.list'
<ListView android:id="@android:id/list"
android:layout_width="fill_parent"
android:layout_height="fill_parent"/>
this should solve your problem
Rename the id of your ListView like this,
<ListView android:id="@android:id/list"
android:layout_width="fill_parent"
android:layout_height="fill_parent"/>
Since you are using ListActivity
your xml file must specify the keyword android while mentioning to a ID.
If you need a custom ListView
then instead of Extending a ListActivity
, you have to simply extend an Activity
and should have the same id without the keyword android.
You should have one listview in your mainlist.xml
file with id as @android:id/list
<ListView
android:id="@android:id/list"
android:layout_height="wrap_content"
android:layout_height="fill_parent"/>