Why do I get an error while trying to set the content of a tabspec in android?
- by rushinge
I have an android activity in which I'm using tabs.
public class UnitActivity extends TabActivity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.unit_view);
TabHost tabHost = getTabHost();
TabSpec spec;
spec = tabHost.newTabSpec("controls");
spec.setIndicator("Control");
spec.setContent(R.layout.unit_control);
tabHost.addTab(spec);
spec = tabHost.newTabSpec("data");
spec.setIndicator("Data");
spec.setContent(R.layout.unit_data);
tabHost.addTab(spec);
}
}
However when I run the program it crashes with the error:
"Could not create tab content because could not find view with id 2130903042". I don't understand what the problem is because R.layout.unit_data refers to a layout file in my resource directory (res/layout/unit_data.xml)
as far as I can tell unit_data.xml is well formed and I've even referenced it successfully in another activity
class UnitData extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.unit_data);
Toast.makeText(this, "Hi from UnitData.onCreate", 5);
}
}
which does not give an error and renders the layout just fine.
What's going on? Why can't I reference this layout when creating a tab?
