Qt5: dynamic add QLabel from buttom to the top

Question

I'm using QVboxLayout to achieve this. The following code below is what I'm currently trying:

BubbleLabel *label = new BubbleLabel();
label->setText(text);
ui->verticalLayout->insertWidget(-1, label);

Instead of from buttom to the top, the result was from top to buttom:

I want it to show this way:

How can I achieve that?

Answer 1

Insert works with the 'placement location' as index. You should use:

ui->verticalLayout->insertWidget(0, label);