Basically I need an event that will fire each time, when text in my custom TextInput is being edited.
Modifying insert_text works only when user type something, but not when he delete symbols.
So I might try to compare text before and while editing. Though not sure that it's best way.
Soo.. is there a way to get not validated text from currently being edited TextInput?
Use the on_text method to get the text from the TextInput whenever it changes.
How to get not validated text from currently being edited TextInput in Kivy?