切换到24小时后TimePicker小时不更新

本文介绍了切换到24小时后TimePicker小时不更新的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

例如，当我在18:00创建这个timePicker（如下图），该timePicker的TIMEVALUE将是06:00。在19：44-> 07:44 ...所以它不会从AM / PM切换到24小时模式后，移动到正确的当前小时。我怎样才能改变这种状况？ 我的目标是，timePicker显示当前时间创建时。喜欢它，当我在AM / PM模式中使用它。

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

Sry基因的不好的配方，希望你能理解我的问题。否则，只问。

更新：

公共类ChooseTimeViewDialog扩展AlertDialog {     保护上下文的背景下;     公共ChooseTimeViewDialog（最终上下文的背景下）{         超（上下文）;         this.context =背景;     }     公共无效的onCreate（包savedInstanceState）{         LayoutInflater充气= this.getLayoutInflater（）;         查看convertView = inflater.inflate（R.layout.dialog_choose_time_view，NULL）;         的setContentView（convertView）;         的setTitle（R.string.title_dialog_choose_time_view）;         最后TimePicker taskTimePicker =（TimePicker）convertView.findViewById（R.id.dctv_task_time_picker）;         taskTimePicker.setIs24HourView（真正的）;         SET按钮（DialogInterface.BUTTON_POSITIVE，选择，新DialogInterface.OnClickListener（）{             @覆盖             公共无效的onClick（DialogInterface对话，诠释它）{                 INT小时= taskTimePicker.getCurrentHour（）;                 INT分钟= taskTimePicker.getCurrentMinute（）;                 日历CAL =新的GregorianCalendar（）;                 cal.set（0，0，0，时，分，0）;                 （（AddTaskViewActivity）上下文）.setSelectedTime（cal.getTime（））;             }         }）;         SET按钮（DialogInterface.BUTTON_NEUTRAL，没时间，新DialogInterface.OnClickListener（）{             @覆盖             公共无效的onClick（DialogInterface对话，诠释它）{                 （（AddTaskViewActivity）上下文）.setSelectedTime（空）;             }         }）;     } }

XML：

＆LT; RelativeLayout的的xmlns：机器人=htt​​p://schemas.android/apk/res/android     的xmlns：工具=htt​​p://schemas.android/tool​​s     机器人：layout_width =match_parent     机器人：layout_height =match_parent＆GT;     ＆LT; TimePicker         机器人：ID =@ + ID / dctv_task_time_picker         机器人：layout_width =WRAP_CONTENT         机器人：layout_height =WRAP_CONTENT         机器人：layout_alignParentTop =真         机器人：layout_centerHorizo​​ntal =真/＆GT; ＆LT; / RelativeLayout的＆GT;

在我搬到了initialiation到的onCreate并使用的setContentView（查看），在对话框的背景是透明的，它的全屏，并没有buttons..why？

解决方案   

我可以使用timePicker.setCurrentHour（新的Date（）。getHours（）），但是这不是我想要的解决方案。它应该是可能的解决它在一个更好的方法。

纵观source code ，这是出现一段时间后，API 10的一个错误：

公共无效setIs24HourView（布尔is24HourView）{     如果（mIs24HourView == is24HourView）{         返回;     }     mIs24HourView = is24HourView;     //缓存因为微调范围变化的当前小时     INT currentHour的= getCurrentHour（）;     updateHourControl（）;     //后的微调范围设定值更新     setCurrentHour（currentHour的）;     updateAmPmControl（）; }

正确的顺序是：

//缓存，因为微调范围变化的当前小时 INT currentHour的= getCurrentHour（）; mIs24HourView = is24HourView;

由于 getCurrentHour（）依赖于 mIs24HourView 返回1​​-12或0-23 ...

但直到源$ C ​​$ C更新和部署，你没有多少选择的余地。你需要调用 setCurrentHour（）在 setIs24HourView（）自己。

For example when I create this timePicker(below) at 18:00, the timePicker's timeValue will be 06:00. At 19:44->07:44... So it doesn't move to the correct current hour after switching from AM/PM to 24h mode. How can I change that? My goal is that the timePicker shows the current time when it was created. Like it does when I use it in AM/PM mode.

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

Sry for the bad formulation, 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="schemas.android/apk/res/android" xmlns:tools="schemas.android/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 initialiation to onCreate and used the setContentView(View), the background of the dialog is transparent, it's fullscreen and has no buttons..why?

解决方案

I can use timePicker.setCurrentHour(new Date().getHours()), but that's not the solution I want. It should be possible to solve it in a better way.

Looking at the source code, this is a bug that appeared sometime 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 don't have much of a choice. You need to call setCurrentHour() after setIs24HourView() yourself.