android - 如何使用 Material 设计来挑选时间？

Question

如何使用 Material 选择时间:1.3.0-alpha01，我正在寻找时间选择器下面的截图，我在 Material io 中找到。
我试过日期选择器正在工作
Material 日期选择器

//Creating a MaterialDatePicker.Builder instance that gives us a single date selector.
val builder : MaterialDatePicker.Builder<*> = MaterialDatePicker.Builder.datePicker() // 1
//Building-up the MaterialDatePicker by calling a builder.build function
val picker : MaterialDatePicker<*> = builder.build()  // 2
//Display the Material Date Picker.
picker.show(requireActivity().supportFragmentManager, picker.toString())   // 3

简单的时间选择器

  val cal = Calendar.getInstance()
            val timeSetListener = TimePickerDialog.OnTimeSetListener { _, hour, minute ->
                cal.set(Calendar.HOUR_OF_DAY, hour)
                cal.set(Calendar.MINUTE, minute)
                //textView.text = SimpleDateFormat("HH:mm").format(cal.time)
            }
            val time = TimePickerDialog(context, timeSetListener, cal.get(Calendar.HOUR_OF_DAY), cal.get(Calendar.MINUTE), true)
            time.setTitle("")
            time.show()

Answer 1

您可以使用新的 MaterialTimePicker 与 Material 组件库一起引入。
注:此代码 需要 至少版本 1.3.0-alpha03 .

import com.google.android.material.timepicker.MaterialTimePicker

val materialTimePicker = MaterialTimePicker.Builder()
    .setTimeFormat(TimeFormat.CLOCK_24H)
    .build()

materialTimePicker.addOnPositiveButtonClickListener {
    val newHour: Int = materialTimePicker.hour
    val newMinute: Int = materialTimePicker.minute
}

使用相同的代码:

val materialTimePicker = MaterialTimePicker.Builder()
    .setTimeFormat(TimeFormat.CLOCK_12H)
    .build()

materialTimePicker.show(supportFragmentManager, "fragment_tag")