What's wrong? The last line! Please very read carefully the documentation for the ArrayAdapter constructor. You'll need to be sure to understand each word, as it's rather short on explanation. Given the multiple meanings for 'id', you'll see how you got confused!
The documentation for the second argument reads: textViewResourceId The resource ID for a layout file containing a TextView to use when instantiating views That is not what you are providing. You are providing an id of a view, not a layout file -- and not even the right view. The id you are supplying here is the ID of the layout that will be used to display your array elements. For this constructor (with just the single resource ID), it must be a layout that consists of a single TextView. The constructors that take two resource IDs let you specify an arbitrary layout with the first one, and the second one should be an ID (as in R.id.xxx) of a TextView within that layout. On Apr 18, 7:35 pm, SheikhAman <[email protected]> wrote: > Ohk, > Things went fine, and i was able to design a new layout like this- > <?xml version="1.0" encoding="utf-8"?> > <RelativeLayout > android:id="@+id/widget101" > android:layout_width="fill_parent" > android:layout_height="fill_parent" > xmlns:android="http://schemas.android.com/apk/res/android"; > > > > <RelativeLayout > android:id="@+id/widget110" > android:layout_width="fill_parent" > android:layout_height="wrap_content" > android:layout_alignParentTop="true" > android:layout_alignParentLeft="true" > > <TextView > android:id="@+id/widget112" > android:layout_width="wrap_content" > android:layout_height="wrap_content" > android:text="TextView" > android:layout_centerVertical="true" > android:layout_centerHorizontal="true" > > </TextView> > <Button > android:id="@+id/widget111" > android:layout_width="wrap_content" > android:layout_height="wrap_content" > android:text="Button" > android:layout_alignParentTop="true" > android:layout_alignParentLeft="true" > > </Button> > <Button > android:id="@+id/widget113" > android:layout_width="wrap_content" > android:layout_height="wrap_content" > android:text="Button" > android:layout_alignParentTop="true" > android:layout_alignParentRight="true" > > </Button> > </RelativeLayout> > <ListView > android:id="@+id/widget114" > android:layout_width="fill_parent" > android:layout_height="wrap_content" > android:layout_below="@+id/tweetList" > android:layout_alignParentLeft="true" > > </ListView> > </RelativeLayout> > > Things stay fine until i assign the adapter to the list i have > created- > > public class MainActivity extends Activity { > /** Called when the activity is first created. */ > String[] data={"1","2","3"}; > @Override > public void onCreate(Bundle savedInstanceState) { > super.onCreate(savedInstanceState); > setContentView(R.layout.main); > ListView tweetList = (ListView) findViewById(R.id.tweetList); > tweetList.setAdapter(new > ArrayAdapter<String>(this,R.id.tweetList,data)); > } > > } > > as soon as i add the last line, problems start. > > whats wrong? > > On Apr 19, 6:24 am, SheikhAman <[email protected]> wrote: > > > > > > > ohh, all of the tags didnt have '>' with them. > > I have already added them but they weren't copied dont know why, so > > thats not a problem. > > > On Apr 19, 6:12 am, SheikhAman <[email protected]> wrote: > > > > Oops! > > > Sorry.. > > > here is the correct one- > > > > <?xml version="1.0" encoding="utf-8"?> > > > <LinearLayout xmlns:android="http://schemas.android.com/apk/res/ > > > android" > > > android:orientation="vertical" > > > android:layout_width="fill_parent" > > > android:layout_height="fill_parent" > > > > > > > <RelativeLayout > > > android:id="@+id/widget28" > > > android:layout_width="wrap_content" > > > android:layout_height="wrap_content" > > > android:layout_x="17px" > > > android:layout_y="10px" > > > > <Button > > > android:id="@+id/widget40" > > > android:layout_width="wrap_content" > > > android:layout_height="wrap_content" > > > android:text="Button" > > > android:layout_alignTop="@+id/widget39" > > > android:layout_toRightOf="@+id/widget38" > > > > </Button> > > > <TextView > > > android:id="@+id/widget39" > > > android:layout_width="wrap_content" > > > android:layout_height="wrap_content" > > > android:text="TextView" > > > android:layout_alignParentBottom="true" > > > android:layout_alignParentLeft="true" > > > </TextView> > > > > <Button > > > android:id="@+id/widget38" > > > android:layout_width="wrap_content" > > > android:layout_height="wrap_content" > > > android:text="Button" > > > android:layout_alignParentTop="true" > > > android:layout_alignParentRight="true" > > > </Button> > > > > </RelativeLayout> > > > <ListView > > > android:id="@+id/tweetList" > > > android:layout_width="wrap_content" > > > android:layout_height="wrap_content" > > > /> > > > </LinearLayout> > > > > Please tell. > > > > On Apr 18, 11:11 pm, Anurag Singh <[email protected]> wrote: > > > > > I think, it's not right way. > > > > > <TextView > > > > android:id="@+id/widget39" > > > > android:layout_width="wrap_ > > > > content" > > > > android:layout_height="wrap_content" > > > > android:text="TextView" > > > > android:layout_alignParentBottom="true" > > > > android:layout_alignParentLeft="true" > > > > > <Button > > > > android:id="@+id/widget38" > > > > android:layout_width="wrap_content" > > > > android:layout_height="wrap_content" > > > > android:text="Button" > > > > android:layout_alignParentTop="true" > > > > android:layout_alignParentRight="true" > > > > > </Button> > > > > </TextView> > > > > You have mention Button in a TextView. > > > > > - Anurag Singh > > > > > Hi. please find the link to attached file, i need to have this kinda > > > > > > layout. > > > > > is it possible?? > > > > > well perhaps it is, but im not getting it how to do it. > > > > > i want to specify the whole layout in the xml, but it gives runtime > > > > > error > > > > > > here's the link to the blue print of desired layout: > > > > > >http://lh6.ggpht.com/_o9EYB0b5APY/S8s-coQE-KI/AAAAAAAACrA/KJUl5ANBi88... > > > > > > here's my main.xml- > > > > > > <?xml version="1.0" encoding="utf-8"?> > > > > > <LinearLayout xmlns:android="http://schemas.android.com/apk/res/ > > > > > android" > > > > > android:orientation="vertical" > > > > > android:layout_width="fill_parent" > > > > > android:layout_height="fill_parent" > > > > > > <RelativeLayout > > > > > android:id="@+id/widget28" > > > > > android:layout_width="wrap_content" > > > > > android:layout_height="wrap_content" > > > > > android:layout_x="17px" > > > > > android:layout_y="10px" > > > > > > <Button > > > > > android:id="@+id/widget40" > > > > > android:layout_width="wrap_content" > > > > > android:layout_height="wrap_content" > > > > > android:text="Button" > > > > > android:layout_alignTop="@+id/widget39" > > > > > android:layout_toRightOf="@+id/widget38" > > > > > > </Button> > > > > > <TextView > > > > > android:id="@+id/widget39" > > > > > android:layout_width="wrap_content" > > > > > android:layout_height="wrap_content" > > > > > android:text="TextView" > > > > > android:layout_alignParentBottom="true" > > > > > android:layout_alignParentLeft="true" > > > > > > <Button > > > > > android:id="@+id/widget38" > > > > > android:layout_width="wrap_content" > > > > > android:layout_height="wrap_content" > > > > > android:text="Button" > > > > > android:layout_alignParentTop="true" > > > > > android:layout_alignParentRight="true" > > > > > > </Button> > > > > > </TextView> > > > > > </RelativeLayout> > > > > > <ListView > > > > > android:id="@+id/tweetList" > > > > > android:layout_width="wrap_content" > > > > > android:layout_height="wrap_content" > > > > > /> > > > > > </LinearLayout> > > > > > > is anything wrong?? 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