java - 如何使用 TimePicker 获取今天的日期/时间？

Question

我有一个 TimePicker 来获取时间。我正在为一个 Android 应用程序编写 Java 代码:

Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
Log.e("Alarm", "" + calendar.getTime());

calendar.set(Calendar.HOUR, timePicker.getCurrentHour());
calendar.set(Calendar.MINUTE, timePicker.getCurrentMinute());
Log.e("Alarm", "" + calendar.getTime());

第二个过程比第一个过程提前一天。

我尝试了以下代码并减去一天。

calendar.add(Calendar.DATE, -1);

这是唯一的方法还是最好的方法？如何使用 TimePicker 获取今天的日期/时间？

Answer 1

检查下面的代码.....也许你能从中得到帮助

public void setCurrentTimeOnView() {

    tvDisplayTime = (TextView) findViewById(R.id.tvTime);
    timePicker1 = (TimePicker) findViewById(R.id.timePicker1);

    final Calendar c = Calendar.getInstance();
    hour = c.get(Calendar.HOUR_OF_DAY);
    minute = c.get(Calendar.MINUTE);

    // set current time into textview
    tvDisplayTime.setText(
                new StringBuilder().append(pad(hour))
                                   .append(":").append(pad(minute)));

    // set current time into timepicker
    timePicker1.setCurrentHour(hour);
    timePicker1.setCurrentMinute(minute); 
}