Android Listview with image and Array text

Question

I want to populate a listview with text taken from (string.xml) and images. I did so but I get NPE Can you help me? thanks

public class Menu_activity extends ListActivity {
int[] img = { R.drawable.01, R.drawable.1, R.drawable.2,
        R.drawable.3, R.drawable.4,
        R.drawable.5};

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    getListView().setDividerHeight(1);
    getListView().setAdapter(new BindDataAdapter(this, img, men));

}
private String[] men = getResources().getStringArray(R.array.men);

Raghunandan · Accepted Answer · 2013-11-09 18:32:37Z

2

Change to

private String[] men;
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    men = getResources().getStringArray(R.array.men); // inside onCreate
    getListView().setDividerHeight(1);
    getListView().setAdapter(new BindDataAdapter(this, img, men));     
}

edited Nov 9, 2013 at 18:32

answered Nov 9, 2013 at 18:13

Raghunandan

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5 Comments

codeMagic Over a year ago

Ah, good catch! I didn't notice it was outside of onCreate(). Do you need to use setContentView() before calling getListView()? I know its an Android resource but I was thinking it still needed to be set first...

user2847219 Over a year ago

CONFIRM, IT WORKS WELL

Raghunandan Over a year ago

@codeMagic the docs does not say anything about it developer.android.com/reference/android/app/ListActivity.html. So it should work fine

codeMagic Over a year ago

Ah, yes, "ListActivity has a default layout..." I knew it had a default ListView but I guess I didn't realize it was in a default layout. Just checking...thanks

Raghunandan Over a year ago

@codeMagic yes if he had custom lauout then op should have a listview with id android:id="@android:id/list" and setContentView(R.layout.mylayout)

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