Gentler way to keep track of changes to text in a TextView or EditText.
Gentler way to keep track of changes to text in a TextView or EditText.

Mixin which provides an 'onTextChanged' callback, which receives the
new text as an argument.

This is one case where the Android callback APIs have a lot of baggage;
the TextWatcher interface has three callbacks, and if you only want one, you
need to dummy up the other two.

rst/positronic_net