How can I get EditText change?

问题

I have a EditText and I want to inform each time text changes (with entering each character). What implementation should I use and what function should I override?

回答1:

Use the addTextChangedListener method on your EditText and make your class implement or define an inner class implementing the TextWatcher class:

https://developer.android.com/reference/android/widget/TextView.html#addTextChangedListener(android.text.TextWatcher)

回答2:

You can declare a boolean variable as false and at each time et.edited make it true

来源：https://stackoverflow.com/questions/4304075/how-can-i-get-edittext-change