John Gaby wrote:
> I am trying to create a ListView and add it to a custom ViewGroup.
> Here is my code:
>
> public class HelloAndroid extends Activity
> {
> private static final String[] PHOTOS_NAMES = new String[] {
> "Lyon",
> "Livermore",
> "Tahoe Pier",
> "Lake Tahoe",
> "Grand Canyon",
> "Bodie"
> };
>
>
> /** Called when the activity is first created. */
> @Override
> public void onCreate(Bundle savedInstanceState) {
> super.onCreate(savedInstanceState);
>
> TextView tv = new TextView(this);
> MyViewGroup vg = new MyViewGroup(this);
> ListView lv = new ListView(this);
>
> tv.setText("Some Text");
> tv.layout(0, 0, 200, 40);
> vg.addView(tv);
>
> lv.layout(0, 40, 200, 200);
>
> final ArrayAdapter<String> adapter = new
> ArrayAdapter<String>(this,
> android.R.layout.simple_list_item_1, PHOTOS_NAMES);
>
> lv.setAdapter(adapter);
>
> vg.addView(lv);
>
> setContentView(vg);
> }
> }
>
> When I do this, I see the "Some Text" TextView (which I also am adding
> to my ViewGroup), but I don't see the ListView. Now if I set the
> ListView as the content view, (i.e. setContentView(lv)) it shows up.
>
> Does anyone have any idea what I am doing wrong?
1. Do not call layout() on the ListView.
2. Get this whole example working without MyViewGroup, perhaps replacing
it with a LinearLayout. Then, substitute in MyViewGroup and work on
getting that behaving properly.
--
Mark Murphy (a Commons Guy)
http://commonsware.com | http://github.com/commonsguy
http://commonsware.com/blog | http://twitter.com/commonsguy
_Beginning Android 2_ from Apress Now Available!
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