Text watcher that will take care of input fields in CreateInputFieldsInInputBox.kt

TextWatcherForInputBox.kt

private fun setTextWatcher(editText: EditText?) {
        editText?.addTextChangedListener(object : TextWatcher {
            override fun beforeTextChanged(s: CharSequence, start: Int, count: Int, after: Int) {}
            
            override fun onTextChanged(s: CharSequence, start: Int, before: Int, count: Int) {
                if (s.toString() != "") {

                    mTextMap[editText.id] = TextMapModel(s.toString(), editText)

                    val indexOfNext = mTextIdArray.indexOf(editText.id) + 1

                    if (indexOfNext < mTextIdArray.size) {                               
                        (mTextMap[mTextIdArray[i]]?.view as EditText).requestFocus()
                    }
                }
            }

            override fun afterTextChanged(s: Editable) {
                if (s.toString() == "") {
                    mTextMap[editText.id] = TextMapModel("", editText)

                    val indexOfNext = mTextIdArray.indexOf(editText.id) - 1

                    if (indexOfNext >= 0) {
                        (mTextMap[mTextIdArray[i]]?.view as EditText).requestFocus()
                    }
                }
            }
        })

        editText?.setOnKeyListener { v, keyCode, event ->

            if (keyCode == KeyEvent.KEYCODE_DEL && editText.selectionStart == 0) { // i.e. 67
                val indexOfPrev = mTextIdArray.indexOf(editText.id) - 1

                if (indexOfPrev >= 0) {
                    (mTextMap[mTextIdArray[i]]?.view as EditText).requestFocus()
                }
            }
            true
        }

    }

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