33 lines
1.1 KiB
Kotlin
33 lines
1.1 KiB
Kotlin
import android.app.Dialog
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import android.app.TimePickerDialog
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import android.os.Bundle
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import android.text.format.DateFormat
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import android.widget.TimePicker
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import androidx.fragment.app.DialogFragment
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import java.util.Calendar
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class TimePickerFragment(private val onTimeSelected: (hour: Int, minute: Int) -> Unit) :
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DialogFragment(), TimePickerDialog.OnTimeSetListener {
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override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
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// 使用当前时间作为默认值
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val c = Calendar.getInstance()
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val hour = c.get(Calendar.HOUR_OF_DAY)
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val minute = c.get(Calendar.MINUTE)
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// 创建并返回 TimePickerDialog 实例
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// activity 参数需要可空性处理，this是OnTimeSetListener，最后一个是是否24小时制
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return TimePickerDialog(
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requireActivity(),
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this,
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hour,
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minute,
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DateFormat.is24HourFormat(activity)
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)
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}
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override fun onTimeSet(view: TimePicker?, hourOfDay: Int, minute: Int) {
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// 当用户设置时间时，通过回调将结果传回
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onTimeSelected(hourOfDay, minute)
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}
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} |