TimePicker hour does not update after switching to 24h

Question

For example, when I create this timePicker (below) at 18:00, timeValue timePicker will be 06:00. At 19: 44-> 07:44 ... Thus, he does not go to the correct current hour after switching from AM / PM to 24h. How can i change this? My goal is that timePicker shows the current time when it was created. As with AM / PM mode.

TimePicker timePicker = (TimePicker) convertView.findViewById(R.id.time_picker); timePicker.setIs24HourView(true); 

Go for a bad wording, I hope you can understand my question. Otherwise, just ask.

UPDATE:

 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> 

After I moved the initialization to onCreate and used setContentView (View), the dialogue background is transparent, it is full-screen and has no buttons ..why?

Answer 1

I can use timePicker.setCurrentHour (new Date (). GetHours ()), but this is not the solution I want. It should be possible to solve it better.

Looking at the source code , this is an error that appeared after API 10:

 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(); } 

The correct order is:

 // cache the current hour since spinner range changes int currentHour = getCurrentHour(); mIs24HourView = is24HourView; 

Because getCurrentHour() relies on mIs24HourView to return 1-12 or 0-23 ...

But until the source code is updated and deployed, you have little choice. You need to call setCurrentHour() after setIs24HourView() yourself.

Answer 2

you must initialize your dialog in onCreate

Answer 3

In addition to the accepted answer, if you use Xamarin, you can do the same by subclassing TimePicker and overriding SetIs24HourView like this:

 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; } }