can anyone tell me whats wrong or suggest the best way to populate a ListView on runtime from one screen to another. Please see my code below 1. the list always ends up empty 2. I get a invalid resource error in the end.
<?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" > <TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/hello" /> <EditText android:id="@+id/entry" android:layout_width="fill_parent" android:layout_height="wrap_content" android:background="@android:drawable/editbox_background"/> <Button android:id="@+id/ok" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@id/ entry" android:layout_alignParentRight="true" android:layout_marginLeft="10dip" android:text="Add to List" /> <Button android:id="@+id/viewlist" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@id/ok" android:layout_alignParentRight="true" android:layout_marginLeft="10dip" android:text="View List" /> </LinearLayout> public class HelloWorld extends Activity { /** Called when the activity is first created. */ public ListView lv; public ArrayList<String> arr = new ArrayList<String>(); @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); Button okButton = (Button) findViewById(R.id.ok); okButton.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { EditText et = (EditText) findViewById(R.id.entry); arr.add(et.getText().toString()); Toast.makeText(HelloWorld.this, "Added: " + et.getText(), Toast.LENGTH_SHORT).show(); et.bringToFront(); } }); Button viewListButton = (Button) findViewById(R.id.viewlist); viewListButton.setOnClickListener(new View.OnClickListener() { public void onClick(View v) { setContentView(R.layout.text); lv = (ListView) findViewById(R.id.list); lv.setAdapter(new ArrayAdapter<String>(HelloWorld.this, R.id.list, arr)); } }); } } -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
