Question

I am trying to add list view in an array of Views. The null pointer exception is thrown at lv1.setAdapter. I don’t know why it’s happening.

Here is my code:

private ListView lv1;
 private String lv_arr[]= new String[]{"Android","iPhone","BlackBerry","AndroidPeople"};

---

View[] vs = new View[1];
lv1=(ListView)findViewById(R.id.ListView01);
lv1.setAdapter(new ArrayAdapter<String>    (MyCalendar.this,android.R.layout.simple_list_item_1,lv_arr));
vs[0] = lv1;    
view.setListViewItems(vs);

---

here is the ListViewO1 inside list.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
  xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent">
   <ListView 
        android:id="@+id/ListView01"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" />

</LinearLayout>

Answer 1

are you setting your content view to list.xml?

setContentView(R.layout.list);

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