So, Ive created a Dictionary called plate_no… so far, so good
now what I need to do is on Screen1 initialize, I need to see if the dictionary I created has the key [plate]
written to it. (this is done later in the screen ) but this is for the first showing of Screen1 before it has been assigned.
if you want to display the whether is having a key or not mean,
just create a layout(either card/Ha/Va with a label. Set the label text to get key of the dictionary.
The function of the this notifier is to pop up a component only. But it wont you alert the text of the dictionary. Got it?