我刚开始学习Kotlin，我正在学习5个月前的教程。我想我必须使用jetpack视图绑定，因为kotline synthetics不再支持。然而，在论坛上寻找答案并遵循建议的方法后，我的按钮似乎不起作用，尽管添加了所有新代码。
这是我的主要活动

package com.example.findmyage

import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import com.example.findmyage.databinding.ActivityMainBinding
import java.util.Calendar

class MainActivity : AppCompatActivity() {
    private lateinit var binding: ActivityMainBinding
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        binding = ActivityMainBinding.inflate(layoutInflater)
        setContentView(R.layout.activity_main)

        binding.buGetAge.setOnClickListener {
            val userDOB = Integer.parseInt(binding.edDOB.text.toString())
            val currentYear = Calendar.getInstance().get(Calendar.YEAR)
            val userAge = currentYear - userDOB
            binding.teYourAge.text = "Your Age is $userAge Years Old"

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这是我的activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#00BCD4"
    tools:context=".MainActivity">

    <EditText
        android:id="@+id/edDOB"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="96dp"
        android:ems="10"
        android:hint="Enter your DOB"
        android:inputType="date"
        android:textSize="20sp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.497"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <TextView
        android:id="@+id/teYourAge"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="160dp"
        android:background="@android:drawable/alert_light_frame"
        android:hapticFeedbackEnabled="false"
        android:shadowColor="#FFEB3B"
        android:text="Your Age"
        android:textColor="@color/design_default_color_on_secondary"
        android:textSize="24sp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.498"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/edDOB" />

    <Button
        android:id="@+id/buGetAge"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="180dp"
        android:background="@android:color/holo_purple"
        android:text="Get your Age"
        android:textColorHighlight="@color/design_default_color_background"
        android:textColorLink="#FFEB3B"
        android:textSize="24sp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/teYourAge"
        app:layout_constraintVertical_bias="1.0" />

型