How to dynamically add a new row of buttons on the button matrix?

How-to
1

Description

I wonder if there is a way to dynamically add a new row of buttons on the button matrix. The new row will have the same number of buttons as the existing rows. And it can also have the same style of the other rows. Can this be done by modify the button map, and then the matrix will auto refresh?

What MCU/Processor/Board and compiler are you using?

ESP32

What LVGL version are you using?

v7

What do you want to achieve?

What have you tried so far?

Code to reproduce

N/A

Screenshot and/or video

If possible, add screenshots and/or videos about the current state.

2

The map you pass to lv_btnmatrix_set_map doesn’t have to be const and stored in flash. It can be global array too where you can put strings as you wish.
E.g.

static char * map[30];

static char text[20];
...
strcpy(text, "hello");
map[0] = "1";
map[1] = "2";
map[2] = text;
map[3] = "";