Dynamically adding rows to TableLayout

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This tutorial shows how to add rows to a TableLayout during the runtime of your application.

The following code-snippet enables you to dynamically add rows to a TableLayout:

*Please note that you must "import android.widget.TableRow.LayoutParams" and NOT 'import android.widget.TableLayout.LayoutParams' or another LayoutParams class. If you use the wrong LayoutParams class, then the rows won't be shown probably.

Besides, you need not have the LayoutParams set for anything else, i.e. neither the TableRow nor the TableLayout need to have their LayoutParams set. The children of a TableLayout cannot specify the layout_width attribute. Width is always MATCH_PARENT. However, the layout_height attribute can be defined by a child; default value is WRAP_CONTENT. If the child is a TableRow, then the height is always WRAP_CONTENT.

this.setContentView(R.layout.main);

          /* Find Tablelayout defined in main.xml */
          TableLayout tl = (TableLayout)findViewById(R.id.myTableLayout);
               /* Create a new row to be added. */
               TableRow tr = new TableRow(this);
               tr.setLayoutParams(new 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));

This is the main.xml:

<?xml version="1.0" encoding="utf-8"?>
<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/myTableLayout"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
     <TableRow
          android:layout_width="fill_parent"
          android:layout_height="wrap_content">
          
          <Button android:text="Static Button"/>
     </TableRow>
</TableLayout>