如何从Material design Datepicker Android kotlin获取月份

implementation 'com.google.android.material:material:1.4.0'

<com.google.android.material.textfield.TextInputLayout
    android:id="@+id/datepicker_layout"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <com.google.android.material.textfield.TextInputEditText
        android:id="@+id/datepicker_edittext"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="Select Date"
        android:inputType="none"
        android:focusable="false"
        android:clickable="true" />

</com.google.android.material.textfield.TextInputLayout>

val datePickerEditText = findViewById<EditText>(R.id.datepicker_edittext)
datePickerEditText.setOnClickListener {
    val calendar = Calendar.getInstance()
    val year = calendar.get(Calendar.YEAR)
    val month = calendar.get(Calendar.MONTH)
    val day = calendar.get(Calendar.DAY_OF_MONTH)

    val datePickerDialog = DatePickerDialog(this, { _, selectedYear, selectedMonth, selectedDay ->
        val selectedDate = Calendar.getInstance()
        selectedDate.set(selectedYear, selectedMonth, selectedDay)
        val selectedMonth = selectedDate.get(Calendar.MONTH)
        // 在这里获取到了选择的月份，可以进行后续操作
        // 例如，可以将月份显示在EditText中
        datePickerEditText.setText((selectedMonth + 1).toString())
    }, year, month, day)

    datePickerDialog.show()
}