android - 出生日期限制

Question

我想将日期选择器对话框限制为至少选择 18 岁

    val c = Calendar.getInstance()
    val year = c.get(Calendar.YEAR)
    val month = c.get(Calendar.MONTH)
    val day = c.get(Calendar.DAY_OF_MONTH)

    val abc = findViewById<Button>(R.id.birth)


    abc.setOnClickListener {
        DatePickerDialog(this, DatePickerDialog.OnDateSetListener { view, mYear, mMonth, mDay ->
            date.setText("" + mDay +"/" + mMonth +"/" + mYear)
        }, year, month, day).show()
   }
}

Answer 1

你可以试试这个方法

val calendarMaxDate = Calendar.getInstance()
calendarMaxDate.add(Calendar.YEAR, -18)

val datePickerDialog = DatePickerDialog(this, DatePickerDialog.OnDateSetListener { view, mYear, mMonth, mDay ->
                        date.setText("" + mDay +"/" + mMonth +"/" + mYear)
                    }, year, month, day)
    datePickerDialog.datePicker.maxDate = calendarMaxDate.timeInMillis
    datePickerDialog.show()