在正确更新 statusDateID 的意义上,下面的代码 fragment “有效”。我遇到的问题是,虽然它正确设置了 statusDateID,但日期不会持续存在,当我更新 mh.entryDate 时,它始终是当前日期。
如何在对话框之外获取日期。这样我就可以使用所选日期而不是当前日期来更新 mh.entryDate。
感谢您的宝贵时间。
fun changeDate(view: View) {
var date: Calendar = Calendar.getInstance()
var thisAYear = date.get(Calendar.YEAR).toInt()
var thisAMonth = date.get(Calendar.MONTH).toInt()
var thisADay = date.get(Calendar.DAY_OF_MONTH).toInt()
val dpd = DatePickerDialog(this, DatePickerDialog.OnDateSetListener { view2, thisYear, thisMonth, thisDay ->
// Display Selected date in textbox
thisAMonth = thisMonth + 1
thisADay = thisDay
thisAYear = thisYear
statusDateID.setText("Date: " + thisAMonth + "/" + thisDay + "/" + thisYear)
val newDate:Calendar =Calendar.getInstance()
newDate.set(thisYear, thisMonth, thisDay)
}, thisAYear, thisAMonth, thisADay)
dpd.show()
mh.entryDate = date.timeInMillis
println("DATE DATA: "+thisAYear+ " "+thisAMonth+" " + thisADay)
println("DATE CHANGED MILLISECS = "+mh.entryDate)
}
mh.entryDate 被定义为一个全局的,并且是一个 LONG。使用调试 println 语句,DATE DATA 和 DATE CHANGED MILLISECS 都显示当前日期。
Best Answer-推荐答案 strong>
只需在 DatePickerDialog.OnDateSetListener 方法中设置日期
mh.entryDate = newDate.timeInMillis
val dpd = DatePickerDialog(this, DatePickerDialog.OnDateSetListener { view2, thisYear, thisMonth, thisDay ->
// Display Selected date in textbox
thisAMonth = thisMonth + 1
thisADay = thisDay
thisAYear = thisYear
statusDateID.setText("Date: " + thisAMonth + "/" + thisDay + "/" + thisYear)
val newDate:Calendar =Calendar.getInstance()
newDate.set(thisYear, thisMonth, thisDay)
mh.entryDate = newDate.timeInMillis // setting new date
}, thisAYear, thisAMonth, thisADay)
dpd.show()
关于android - 从 Kotlin Android 中的 DatePickerDialog 获取日期,我们在Stack Overflow上找到一个类似的问题:
https://stackoverflow.com/questions/46588071/
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