例如,当我在18:00创建此timePicker(下面)时,timePicker的timeValue将是06:00。在19:44-> 07:44 ...因此在从AM / PM切换到24h模式之后它不会移动到正确的当前小时。我怎么能改变呢? 我的目标是timePicker显示创建它的当前时间。就像我在AM / PM模式下使用它时一样。
TimePicker timePicker = (TimePicker) convertView.findViewById(R.id.time_picker);
timePicker.setIs24HourView(true);
对于糟糕的表述,希望你能理解我的问题。否则就问问。
更新:
public class ChooseTimeViewDialog extends AlertDialog {
protected Context context;
public ChooseTimeViewDialog(final Context context) {
super(context);
this.context = context;
}
public void onCreate(Bundle savedInstanceState) {
LayoutInflater inflater = this.getLayoutInflater();
View convertView = inflater.inflate(R.layout.dialog_choose_time_view, null);
setContentView(convertView);
setTitle(R.string.title_dialog_choose_time_view);
final TimePicker taskTimePicker = (TimePicker) convertView.findViewById(R.id.dctv_task_time_picker);
taskTimePicker.setIs24HourView(true);
setButton(DialogInterface.BUTTON_POSITIVE, "Choose", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
int hour = taskTimePicker.getCurrentHour();
int minute = taskTimePicker.getCurrentMinute();
Calendar cal = new GregorianCalendar();
cal.set(0, 0, 0, hour, minute, 0);
((AddTaskViewActivity) context).setSelectedTime(cal.getTime());
}
});
setButton(DialogInterface.BUTTON_NEUTRAL, "No time", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
((AddTaskViewActivity) context).setSelectedTime(null);
}
});
}
}
XML:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<TimePicker
android:id="@+id/dctv_task_time_picker"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true" />
</RelativeLayout>
在我将初始化移动到onCreate并使用setContentView(View)后,对话框的背景是透明的,它是全屏的,没有按钮..为什么?
答案 0 :(得分:7)
我可以使用timePicker.setCurrentHour(new Date()。getHours()),但这不是我想要的解决方案。应该可以更好地解决它。
查看source code,这是在API 10之后出现的错误:
public void setIs24HourView(Boolean is24HourView) {
if (mIs24HourView == is24HourView) {
return;
}
mIs24HourView = is24HourView;
// cache the current hour since spinner range changes
int currentHour = getCurrentHour();
updateHourControl();
// set value after spinner range is updated
setCurrentHour(currentHour);
updateAmPmControl();
}
正确的顺序是:
// cache the current hour since spinner range changes
int currentHour = getCurrentHour();
mIs24HourView = is24HourView;
因为getCurrentHour()
依靠mIs24HourView
返回1-12或0-23 ...
但是在更新和部署源代码之前,您没有太多选择。您需要在setCurrentHour()
之后致电setIs24HourView()
。
答案 1 :(得分:0)
您应该在onCreate
答案 2 :(得分:0)
除了接受的答案之外,如果您正在使用Xamarin,那么您可以通过继承TimePicker并覆盖SetIs24HourView来执行相同的操作:
public class TwentyFourHourMvxTimePicker : MvxTimePicker
{
public TwentyFourHourMvxTimePicker(Context context, IAttributeSet attrs) : base (context, attrs)
{
}
public override void SetIs24HourView (Java.Lang.Boolean is24HourView)
{
var current = CurrentHour;
base.SetIs24HourView(is24HourView);
CurrentHour = current;
}
}