edittext addTextChangedListener方法 kotlin

具体代码

 editTextTextPersonName?.addTextChangedListener(object :TextWatcher{
            override fun beforeTextChanged(p0: CharSequence?, p1: Int, p2: Int, p3: Int) {
                Log.d("DASD","1")
            }

            override fun onTextChanged(p0: CharSequence?, p1: Int, p2: Int, p3: Int) {
                Log.d("DASD","2")
            }

            override fun afterTextChanged(p0: Editable?) {
                Log.d("DASD","3")
            }

        })

详解链接