How to set weight of tablerows elements?

Question

I have a TableLayout which I add rows programmatically and I'm trying to set "weight" of elements contained in rows programmatically.

I'm trying to do that by setting weightSum on the TableRow and setting "weight" of the columns using the last parameter of "LayoutParams", but nothing appears; instead if I give a fixed width to elements, code works well.

This is my layout:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <TableLayout
        android:id="@+id/sample"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginLeft="10dp"
        android:layout_marginRight="10dp"
        android:gravity="center" >
    </TableLayout>
</LinearLayout>

This is the code:

public class HomeFragment extends Fragment {
    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        return inflater.inflate(R.layout.home, null);
    }

    @Override
    public void onStart() {
        super.onStart();

        TableLayout tl = (TableLayout)getActivity().findViewById(R.id.sample);
        TableRow tr = new TableRow(getActivity());
        tr.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.WRAP_CONTENT, TableRow.LayoutParams.WRAP_CONTENT));
        tr.setGravity(Gravity.CENTER);
        tr.setWeightSum(1f);

        TableRow.LayoutParams lp;
        TextView tv1 = new TextView(getActivity());
        lp = new TableRow.LayoutParams(0, TableRow.LayoutParams.WRAP_CONTENT, 0.6f);
        tv1.setText("AAA");
        tv1.setLayoutParams(lp);
        TextView tv2 = new TextView(getActivity());
        lp = new TableRow.LayoutParams(0, TableRow.LayoutParams.WRAP_CONTENT, 0.4f);
        tv2.setText("BBB");
        tv2.setLayoutParams(lp);

        tr.addView(tv1);
        tr.addView(tv2);
        tl.addView(tr);
    }
}

Answer 1

Here is the updated code for setting the weightsum and column weight programmatically for a tableLayout.

TableLayout tl = (TableLayout)getActivity().findViewById(R.id.sample);
TableRow tr = new TableRow(getActivity());
tr.setLayoutParams(new TableRow.LayoutParams(TableRow.LayoutParams.WRAP_CONTENT, TableRow.LayoutParams.WRAP_CONTENT));
tr.setGravity(Gravity.CENTER);
tr.setWeightSum(4); //total row weight

TableRow.LayoutParams lp;
lp.weight = 1; //column weight
TextView tv1 = new TextView(getActivity());
lp = new TableRow.LayoutParams(0, TableRow.LayoutParams.WRAP_CONTENT, 0.6f);
tv1.setText("AAA");
tv1.setLayoutParams(lp);
TextView tv2 = new TextView(getActivity());
lp = new TableRow.LayoutParams(0, TableRow.LayoutParams.WRAP_CONTENT, 0.4f);
tv2.setText("BBB");
tv2.setLayoutParams(lp);

tr.addView(tv1);
tr.addView(tv2);
tl.addView(tr);