Views added to TableLayout programmatically not showing

I'm trying to add views to a TableLayout, but they simply won't show up (I'm testing on an emulator). Actually I wrote more code than this, i.e. adding textviews to tablerows, but I've cut it down to this, and even this won't work. Any idea why? Here's the code of `test.xml`: ``` <?xml version="1.0" encoding="utf-8"?> <TableLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/tableLayout" android:layout_width="fill_parent" android:layout_height="fill_parent" > <TableRow android:id="@+id/tableRow1" android:layout_width="wrap_content" android:layout_height="wrap_content" > </TableRow> <TableRow android:id="@+id/tableRow2" android:layout_width="wrap_content" android:layout_height="wrap_content" > <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="TEST" > </TextView> </TableRow> </TableLayout> ``` And the java code: ``` @Override protected void onCreate(Bundle savedInstanceState) { // TODO Auto-generated method stub super.onCreate(savedInstanceState); setContentView(R.layout.test); /* Find Tablelayout defined in test.xml */ TableLayout tl = (TableLayout) findViewById(R.id.tableLayout); /* Create a new row to be added. */ TableRow tr = new TableRow(this); tr.setLayoutParams(new TableRow.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT)); /* Create a Button to be the row-content. */ Button b = new Button(this); b.setText("Dynamic Button"); b.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT)); /* Add Button to row. */ tr.addView(b); /* Add row to TableLayout. */ tl.addView(tr, new TableLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT)); } ``` When I test on the emulator I only see the textview with the hardcoded string "TEST" (defined in the xml file).