如何初始化GridLayout的子视图

<GridLayout
    android:id="@+id/gridLayout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:columnCount="3"
    android:rowCount="3">
</GridLayout>

GridLayout gridLayout = findViewById(R.id.gridLayout);

for (int i = 0; i < 9; i++) {
    TextView textView = new TextView(this);
    textView.setText("View " + (i + 1));
    textView.setBackgroundColor(Color.GRAY);
    textView.setGravity(Gravity.CENTER);
    
    GridLayout.LayoutParams params = new GridLayout.LayoutParams();
    params.width = 0;
    params.height = GridLayout.LayoutParams.WRAP_CONTENT;
    params.columnSpec = GridLayout.spec(GridLayout.UNDEFINED, 1f);
    params.rowSpec = GridLayout.spec(GridLayout.UNDEFINED, 1f);
    
    gridLayout.addView(textView, params);
}