切换到24小时后TimePicker小时不更新 [英] TimePicker hour doesn't update after switching to 24h
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=http://schemas.android.com/apk/res/android
的xmlns：工具=http://schemas.android.com/tools
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_centerHorizontal =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？
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<一href="http://grep$c$c.com/file/repository.grep$c$c.com/java/ext/com.google.android/android/4.0.1_r1/android/widget/TimePicker.java#TimePicker.setIs24HourView%28java.lang.Boolean%29">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="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 initialiation to onCreate and used the setContentView(View), the background of the dialog is transparent, it's fullscreen and has no buttons..why?
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.
这篇关于切换到24小时后TimePicker小时不更新的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
