Android Binding AppCompatEditText: Add TextWatcher

We should implement TextWatcher interface, due to listen to change text.

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public TextWatcher getEditTextWatcher() {     return new TextWatcher() {         @Override         public void beforeTextChanged(CharSequence charSequence, int start, int count,                 int after) {           }           @Override         public void onTextChanged(CharSequence charSequence, int start, int before, int count) {             // FIXME: when change text         }           @Override         public void afterTextChanged(Editable editable) {           }     }; }

set to app:addTextChangedListener on Layout file.

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<data>     <variable name="fragment"               type="jp.baroqueworksdev.sample.SampleFragment"/> </data> <android.support.v7.AppCompatEditText         app:addTextChangedListener="@{fragment.getEditTextWatcher}"/>