Select burger menu Icon

[Movo-Burhan]

Hello,
how can i select the burger menu, like in the example

[das1192]

private View getDrawerView(Toolbar toolbar) {
for (int i = 0; i < toolbar.getChildCount(); i++) {
if (toolbar.getChildAt(i) instanceof ImageButton)
return toolbar.getChildAt(i);
}
return null;
}
this code works