--- 请注意,以主持人:今天(7月15日),我注意到,有人已经面临这个问题在这里 。 但我不知道这是否是适当关闭此为重复的,因为我觉得我提供这个问题的一个更好的解释。 我不知道我是否应该修改的其他问题并粘贴此内容有,但我不舒服改变别人的问题太多了。 ---
我这里有一些奇怪 。
我不认为这个问题取决于哪个SDK,您筑起。 该设备的操作系统版本是最重要的。
问题1:在默认情况下不一致
DatePickerDialog
改变(?)Jelly Bean中,目前只提供了一个完成按钮。 以前的版本中包括了取消按钮,这可能会影响(从以前的Android版本不一致,肌肉记忆)的用户体验。
复制:创建一个基础工程。 把这个onCreate
:
DatePickerDialog picker = new DatePickerDialog(
this,
new OnDateSetListener() {
@Override
public void onDateSet(DatePicker v, int y, int m, int d) {
Log.d("Picker", "Set!");
}
},
2012, 6, 15);
picker.show();
预计: 取消按钮出现在对话框中。
当前: 取消按钮不会出现。
截图: 4.0.3 (OK)和4.1.1 (可能是错误的?)。
问题2:错误的解雇行为
对话调用哪个听众应该确实打电话,然后总是调用OnDateSetListener
听众。 取消仍然调用设置方法,并设置它调用该方法的两倍。
复制:使用#1码,但添加下面的代码(你会看到这个解决#1,但只有视觉/ UI):
picker.setButton(DialogInterface.BUTTON_NEGATIVE, "Cancel",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Log.d("Picker", "Cancel!");
}
});
预期:
- 按返回键或单击对话框外什么也不做 。
- 按“取消”会打印选择器取消! 。
- 按“SET”会打印选择器一套! 。
当前:
- 按返回键或单击对话框打印选择器设置外! 。
- 按“取消”打印选择器取消! 然后选择器套装! 。
- 按“设置”打印选择器一套! 然后选择器套装! 。
日志显示的行为线路:
07-15 12:00:13.415: D/Picker(21000): Set!
07-15 12:00:24.860: D/Picker(21000): Cancel!
07-15 12:00:24.876: D/Picker(21000): Set!
07-15 12:00:33.696: D/Picker(21000): Set!
07-15 12:00:33.719: D/Picker(21000): Set!
其他说明和评论
- 它包裹一个
DatePickerFragment
无所谓。 我简单为您解决问题,但我测试过它。
Answer 1:
注: 固定的棒棒糖 , 这里来源 。 自动化类为客户使用 (与所有Android版本兼容)更新。
TL; DR:一个全球性解决方案1-2-3死了简单的步骤:
- 下载这个类。
- 实施
OnDateSetListener
您的活动(或更改类,以满足您的需求)。 触发与这个码的对话框(在此示例中,我使用它的内部Fragment
):
Bundle b = new Bundle(); b.putInt(DatePickerDialogFragment.YEAR, 2012); b.putInt(DatePickerDialogFragment.MONTH, 6); b.putInt(DatePickerDialogFragment.DATE, 17); DialogFragment picker = new DatePickerDialogFragment(); picker.setArguments(b); picker.show(getActivity().getSupportFragmentManager(), "frag_date_picker");
而这一切都需要! 我还留着我的回答是“公认”的原因是因为我还是喜欢我的解决方案,因为它有一个非常小的足迹在客户端代码,它解决了根本问题(听众被称为在框架类),整个配置的变化工作正常它的航线代码逻辑在以前没有受到此问题困扰的Android版本的默认实现(见类源)。
原来的答复(保存历史和教学的原因):
错误源
OK,看起来像它确实是一个错误,别人已经装满了。 发行34833 。
我发现,这个问题可能是在DatePickerDialog.java
。 其中记载:
private void tryNotifyDateSet() {
if (mCallBack != null) {
mDatePicker.clearFocus();
mCallBack.onDateSet(mDatePicker, mDatePicker.getYear(),
mDatePicker.getMonth(), mDatePicker.getDayOfMonth());
}
}
@Override
protected void onStop() {
tryNotifyDateSet();
super.onStop();
}
我猜它可能是:
@Override
protected void onStop() {
// instead of the full tryNotifyDateSet() call:
if (mCallBack != null) mDatePicker.clearFocus();
super.onStop();
}
现在,如果有人可以告诉我,我怎么能提出到Android补丁/ bug报告,我会很高兴。 同时,我建议一个可能的修复(简单)作为一个附加的版本DatePickerDialog.java
在问题出现。
概念来避免故障
设置听者null
的构造函数和创建自己的BUTTON_POSITIVE
以后按钮 。 就是这样,下面详细介绍。
这个问题是因为DatePickerDialog.java
,你可以在源看到,调用了一个全局变量( mCallBack
存储这是在构造函数中传递的听众):
/**
* @param context The context the dialog is to run in.
* @param callBack How the parent is notified that the date is set.
* @param year The initial year of the dialog.
* @param monthOfYear The initial month of the dialog.
* @param dayOfMonth The initial day of the dialog.
*/
public DatePickerDialog(Context context,
OnDateSetListener callBack,
int year,
int monthOfYear,
int dayOfMonth) {
this(context, 0, callBack, year, monthOfYear, dayOfMonth);
}
/**
* @param context The context the dialog is to run in.
* @param theme the theme to apply to this dialog
* @param callBack How the parent is notified that the date is set.
* @param year The initial year of the dialog.
* @param monthOfYear The initial month of the dialog.
* @param dayOfMonth The initial day of the dialog.
*/
public DatePickerDialog(Context context,
int theme,
OnDateSetListener callBack,
int year,
int monthOfYear,
int dayOfMonth) {
super(context, theme);
mCallBack = callBack;
// ... rest of the constructor.
}
因此,关键是要提供一个null
监听器将被存储为侦听器,然后推出自己的一组按钮(如下图#1的原代码,更新)的:
DatePickerDialog picker = new DatePickerDialog(
this,
null, // instead of a listener
2012, 6, 15);
picker.setCancelable(true);
picker.setCanceledOnTouchOutside(true);
picker.setButton(DialogInterface.BUTTON_POSITIVE, "OK",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Log.d("Picker", "Correct behavior!");
}
});
picker.setButton(DialogInterface.BUTTON_NEGATIVE, "Cancel",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Log.d("Picker", "Cancel!");
}
});
picker.show();
现在,它的工作,因为可能的修正,我上面贴的。
而且,由于DatePickerDialog.java
检查一null
时,它读取mCallback
( 因为API天3 / 1.5似乎 ---不能检查,当然蜂窝),也不会引发异常。 考虑棒棒糖固定的问题,我不打算调查一下:只使用默认的实现(涵盖我提供的类)。
起初我很害怕不调用的clearFocus()
但是我在这里测试和日志行很干净。 所以,我提出这条线可能甚至不毕竟必要的,但我不知道。
与以前的API水平兼容性(编辑)的
正如我在下面的评论指出,这是一个概念,你可以下载,我从我的谷歌云端硬盘帐户使用类 。 我使用的方式,系统默认的实现,则使用上不会受错误的版本。
我花了,因为我想,以减少客户端类的样板代码到最低限度是适合我的需求的一些假设(按钮名称等)。 全部使用示例:
class YourActivity extends SherlockFragmentActivity implements OnDateSetListener
// ...
Bundle b = new Bundle();
b.putInt(DatePickerDialogFragment.YEAR, 2012);
b.putInt(DatePickerDialogFragment.MONTH, 6);
b.putInt(DatePickerDialogFragment.DATE, 17);
DialogFragment picker = new DatePickerDialogFragment();
picker.setArguments(b);
picker.show(getActivity().getSupportFragmentManager(), "fragment_date_picker");
Answer 2:
我会加上我自己即兴的解决方案大卫Cesarino贴,如果你不使用的片段,并想一个简单的方法来解决它在所有版本(2.1直通4.1):
public class FixedDatePickerDialog extends DatePickerDialog {
//I use a Calendar object to initialize it, but you can revert to Y,M,D easily
public FixedDatePickerDialog(Calendar dateToShow, Context context, OnDateSetListener callBack) {
super(context, null, dateToShow.get(YEAR), dateToShow.get(MONTH), dateToShow.get(DAY_OF_MONTH));
initializePicker(callBack);
}
public FixedDatePickerDialog(Calendar dateToShow, Context context, int theme,
OnDateSetListener callBack) {
super(context, theme, null, dateToShow.get(YEAR), dateToShow.get(MONTH), dateToShow.get(DAY_OF_MONTH));
initializePicker(callBack);
}
private void initializePicker(final OnDateSetListener callback) {
try {
//If you're only using Honeycomb+ then you can just call getDatePicker() instead of using reflection
Field pickerField = DatePickerDialog.class.getDeclaredField("mDatePicker");
pickerField.setAccessible(true);
final DatePicker picker = (DatePicker) pickerField.get(this);
this.setCancelable(true);
this.setButton(DialogInterface.BUTTON_NEGATIVE, getContext().getText(android.R.string.cancel), (OnClickListener) null);
this.setButton(DialogInterface.BUTTON_POSITIVE, getContext().getText(android.R.string.ok),
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
picker.clearFocus(); //Focus must be cleared so the value change listener is called
callback.onDateSet(picker, picker.getYear(), picker.getMonth(), picker.getDayOfMonth());
}
});
} catch (Exception e) { /* Reflection probably failed*/ }
}
}
Answer 3:
直到错误会被修正,我建议不要使用DatePickerDialog或TimePickerDialog。 使用定制AlertDialog与TimePicker / DatePicker的工具;
更改TimePickerDialog用;
final TimePicker timePicker = new TimePicker(this);
timePicker.setIs24HourView(true);
timePicker.setCurrentHour(20);
timePicker.setCurrentMinute(15);
new AlertDialog.Builder(this)
.setTitle("Test")
.setPositiveButton(android.R.string.ok, new OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Log.d("Picker", timePicker.getCurrentHour() + ":"
+ timePicker.getCurrentMinute());
}
})
.setNegativeButton(android.R.string.cancel,
new OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
Log.d("Picker", "Cancelled!");
}
}).setView(timePicker).show();
更改DatePickerDialog用;
final DatePicker datePicker = new DatePicker(this);
datePicker.init(2012, 10, 5, null);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
datePicker.setCalendarViewShown(false);
}
new AlertDialog.Builder(this)
.setTitle("Test")
.setPositiveButton(android.R.string.ok, new OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Log.d("Picker", datePicker.getYear() + " "
+ (datePicker.getMonth() + 1) + " "
+ datePicker.getDayOfMonth());
}
})
.setNegativeButton(android.R.string.cancel,
new OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
Log.d("Picker", "Cancelled!");
}
}).setView(datePicker).show();
Answer 4:
在一个TimePicker基于由大卫Cesarino的解决方案,“TL; DR:一个全球性解决方案1-2-3死了简单的步骤”
TimePickerDialog不提供像DatePickerDialog.getDatePicker的功能。 所以,OnTimeSetListener监听器必须提供。 只是为了保持与DatePicker的解决方法解决方案的相似性,我一直保持着老mListener概念。 如果需要你可以改变它。
呼叫和监听器是保持原来的解决方案。 只是包括
import android.app.TimePickerDialog;
import android.app.TimePickerDialog.OnTimeSetListener;
扩展父类,
... implements OnDateSetListener, OnTimeSetListener
实行
@Override
public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
...
}
例如主叫
Calendar cal = Calendar.getInstance();
int hour = cal.get(Calendar.HOUR_OF_DAY);
int minute = cal.get(Calendar.MINUTE);
Bundle b = new Bundle();
b.putInt(TimePickerDialogFragment.HOUR, hour);
b.putInt(TimePickerDialogFragment.MINUTE, minute);
DialogFragment picker = new TimePickerDialogFragment();
picker.setArguments(b);
picker.show(getSupportFragmentManager(), "frag_time_picker");
(更新处理取消)
public class TimePickerDialogFragment extends DialogFragment {
public static final String HOUR = "Hour";
public static final String MINUTE = "Minute";
private boolean isCancelled = false; //Added to handle cancel
private TimePickerDialog.OnTimeSetListener mListener;
//Added to handle parent listener
private TimePickerDialog.OnTimeSetListener mTimeSetListener = new TimePickerDialog.OnTimeSetListener() {
public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
if (!isCancelled)
{
mListener.onTimeSet(view,hourOfDay,minute);
}
}
};
//
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
this.mListener = (TimePickerDialog.OnTimeSetListener) activity;
}
@Override
public void onDetach() {
this.mListener = null;
super.onDetach();
}
@TargetApi(11)
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
Bundle b = getArguments();
int h = b.getInt(HOUR);
int m = b.getInt(MINUTE);
final TimePickerDialog picker = new TimePickerDialog(getActivity(), getConstructorListener(), h, m,DateFormat.is24HourFormat(getActivity()));
//final TimePicker timePicker = new TimePicker(getBaseContext());
if (hasJellyBeanAndAbove()) {
picker.setButton(DialogInterface.BUTTON_POSITIVE,
getActivity().getString(android.R.string.ok),
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
isCancelled = false; //Cancel flag, used in mTimeSetListener
}
});
picker.setButton(DialogInterface.BUTTON_NEGATIVE,
getActivity().getString(android.R.string.cancel),
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
isCancelled = true; //Cancel flag, used in mTimeSetListener
}
});
}
return picker;
}
private boolean hasJellyBeanAndAbove() {
return Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN;
}
private TimePickerDialog.OnTimeSetListener getConstructorListener() {
return hasJellyBeanAndAbove() ? mTimeSetListener : mListener; //instead of null, mTimeSetListener is returned.
}
}
Answer 5:
如果任何人想要一个快速的解决方法,这里是我使用的代码:
public void showCustomDatePicker () {
final DatePicker mDatePicker = (DatePicker) getLayoutInflater().
inflate(R.layout.date_picker_view, null);
//Set an initial date for the picker
final Calendar c = Calendar.getInstance();
int year = c.get(Calendar.YEAR);
int month = c.get(Calendar.MONTH);
int day = c.get(Calendar.DAY_OF_MONTH);
//Set the date now
mDatePicker.updateDate(year, month, day);
//create the dialog
AlertDialog.Builder mBuilder = new Builder(this);
//set the title
mBuilder.setTitle(getString(R.string.date_picker_title))
//set our date picker
.setView(mDatePicker)
//set the buttons
.setPositiveButton(android.R.string.ok, new OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
//whatever method you choose to handle the date changes
//the important thing to know is how to retrieve the data from the picker
handleOnDateSet(mDatePicker.getYear(),
mDatePicker.getMonth(),
mDatePicker.getDayOfMonth());
}
})
.setNegativeButton(android.R.string.cancel, new OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
})
//create the dialog and show it.
.create().show();
}
凡layout.date_picker_view是一个datepicker一个简单的布局资源,因为它是唯一的因素:
<!xml version="1.0" encoding="utf-8">
<DatePicker xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/date_picker"
android:layout_width="fill_parent"
android:spinnersShown="true"
android:calendarViewShown="false"
android:layout_height="fill_parent"/>
下面是完整的教程中如果你有兴趣。
Answer 6:
我简单的解决方案。 当你想要得到它再次烧制只是运行“resetFired”(又称打开对话框时)。
private class FixedDatePickerDialogListener implements DatePickerDialog.OnDateSetListener{
private boolean fired;
public void resetFired(){
fired = false;
}
public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
if (fired) {
Log.i("DatePicker", "Double fire occurred.");
return;//ignore and return.
}
//put your code here to handle onDateSet
fired = true;//first time fired
}
}
Answer 7:
据ANKUR乔杜里的辉煌答案就类似TimePickerDialog
问题,如果我们的内部检查onDateSet
如果给定的视图isShown()
与否,将解决整个问题与最小的努力,而无需扩展台或者检查有些狰狞国旗绕来绕去的代码,甚至检查OS版本,只需做到以下几点:
public void onDateSet(DatePicker view, int year, int month, int day) {
if (view.isShown()) {
// read the date here :)
}
}
当然同样可以做到onTimeSet
按ANKUR的答案
Answer 8:
我的方式管理这个情况是使用标志和重写onCancel和onDismiss方法。
只有当用户触摸的对话框或后退按钮外onCancel被调用。 onDismiss总是被调用
在onCancel方法设置一个标志可以帮助在onDismiss方法用户的意图过滤器:取消行动或做动作。 下面一些代码,给出了这个概念。
public class DatePickerDialogFragment extends DialogFragment implements DatePickerDialog.OnDateSetListener {
private boolean cancelDialog = false;
private int year;
private int month;
private int day;
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
DatePickerDialog dpd = new DatePickerDialog(getActivity(), this, year, month, day);
return dpd;
}
public void setDatePickerDate(int year, int month, int day) {
this.year = year;
this.month = month;
this.day = day;
}
@Override
public void onCancel(DialogInterface dialog) {
super.onCancel(dialog);
cancelDialog = true;
}
@Override
public void onDismiss(DialogInterface dialog) {
super.onDismiss(dialog);
if (!cancelDialog) {
#put the code you want to execute if the user clicks the done button
}
}
@Override
public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
setDatePickerDate(year, monthOfYear, dayOfMonth);
}
}
Answer 9:
有一个很简单的解决方法,如果你的应用程序不使用操作栏。 顺便说一下注意,有些应用程序依靠此功能工作,因为日期选择器的抵消有特殊的意义(例如,它会清除日期字段为空字符串,这对于一些应用是输入一个有效的和有意义的类型),并使用布尔标志,以防止被设置就OK了两次不会帮助你在这种情况下的日期。
回覆。 实际的修复程序,您不必创建新的按钮或您自己的对话框。 问题的关键是能够同时与兼容,旧版本的Android,在越野车的人(4)和任何未来的,尽管后者是不可能的肯定,当然。 请注意,在Android的2,调用OnStop()用于android.app.Dialog根本不做任何事,并在4 *它mActionBar.setShowHideAnimationEnabled(假的),这是很重要的,如果只有你的应用程序有一个操作栏。 调用OnStop()在DatePickerDialog,从对话框继承,不仅有助于mDatePicker.clearFocus()(作为最新的补丁到Android 4.3源的),这似乎并不重要。
因此与不执行任何操作应该在许多情况下更换方法的onStop()解决您的应用程序,并确保它仍将如此可预见的未来。 因此,简单地扩展DatePickerDialog类用自己和重写的onStop()白衣虚拟方法。 你还必须提供一个或两个构造器,按您的要求。 还要注意的是一个不应该想一些过分此修复程序通过例如试图做直接与活动条的东西,因为这会限制你的兼容性仅适用于Android的最新版本。 还要注意的是,因为错误是只在DatePickerDialog本身的onStop(),但不是在DatePickerDialog的超类这将是很好能够调用父类的的DatePicker的的onStop()。 然而,这需要您从您的自定义类调用super.super.onStop(),它的Java不会让你这样做,因为它违背了封装理念:)下面是我的,我用来verride DatePickerDialog小类。 我希望这个意见将是有用的人。 WOJTEK Jarosz
public class myDatePickerDialog extends DatePickerDialog {
public myDatePickerDialog(Context context, OnDateSetListener callBack, int year, int monthOfYear, int dayOfMonth) {
super(context, callBack, year, monthOfYear, dayOfMonth);
}
@Override
protected void onStop() {
// Replacing tryNotifyDateSet() with nothing - this is a workaround for Android bug https://android-review.googlesource.com/#/c/61270/A
// Would also like to clear focus, but we cannot get at the private members, so we do nothing. It seems to do no harm...
// mDatePicker.clearFocus();
// Now we would like to call super on onStop(), but actually what we would mean is super.super, because
// it is super.onStop() that we are trying NOT to run, because it is buggy. However, doing such a thing
// in Java is not allowed, as it goes against the philosophy of encapsulation (the Creators never thought
// that we might have to patch parent classes from the bottom up :)
// However, we do not lose much by doing nothing at all, because in Android 2.* onStop() in androd.app.Dialog //actually
// does nothing and in 4.* it does:
// if (mActionBar != null) mActionBar.setShowHideAnimationEnabled(false);
// which is not essential for us here because we use no action bar... QED
// So we do nothing and we intend to keep this workaround forever because of users with older devices, who might
// run Android 4.1 - 4.3 for some time to come, even if the bug is fixed in later versions of Android.
}
}
Answer 10:
试试下面的概念。
DatePickerDialog picker = new DatePickerDialog(
this,
new OnDateSetListener() {
@Override
public void onDateSet(DatePicker v, int y, int m, int d) {
Log.d("Picker", "Set!");
}
},
2012, 6, 15);
picker.show();
在onDateSet()方法调用两次(如果u在emulator.it检查调用twice.If使用真实的设备,然后它会调用正确的时间。如果单你正在使用模拟器,然后使用你在真实设备的工作则counter.if忽略它的工作对我来说柜台variable.For真实设备。)
当用户点击在DatePickerDialog的按钮。
对于这一点,你应该保持一个计数器值并没有什么做当评判要求第一时间与在该方法调用第二次执行该操作。
请参阅下面的编码片段
static int counter=0; //Counter will be declared globally.
DatePickerDialog picker = new DatePickerDialog(
this,
new OnDateSetListener() {
@Override
public void onDateSet(DatePicker v, int y, int m, int d) {
counter++;
if(counter==1) return;
counter=0;
//Do the operations here
}
},
2012, 6, 15);
picker.show();
对于取消日期选择器dilalog其工作me.For模拟器它不是工作呢
DialogInterface.OnClickListener dialogOnClickListener=new DialogInterface.OnClickListener()
{
@Override
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
if(which==Dialog.BUTTON_NEGATIVE)
{
Log.i(tagName, "dialog negative button clicked");
dialog.dismiss();
}
}
};
mDatePickerDialog.setButton(Dialog.BUTTON_NEGATIVE, "Cancel", dialogOnClickListener);
它的工作对我来说,用于仿真真实device.But它不工作correctly.I认为它的Android模拟器的bug。
Answer 11:
一个简单的解决方案将是使用布尔跳过第二运行
boolean isShow = false; // define global variable
// when showing time picker
TimePickerDialog timeDlg = new TimePickerDialog( this, new OnTimeSetListener()
{
@Override
public void onTimeSet( TimePicker view, int hourOfDay, int minute )
{
if ( isShow )
{
isShow = false;
// your code
}
}
}, 8, 30, false );
timeDlg.setButton( TimePickerDialog.BUTTON_NEGATIVE, "Cancel", new DialogInterface.OnClickListener()
{
@Override
public void onClick( DialogInterface dialog, int which )
{
isShow = false;
}
} );
timeDlg.setButton( TimePickerDialog.BUTTON_POSITIVE, "Set", new DialogInterface.OnClickListener()
{
@Override
public void onClick( DialogInterface dialog, int which )
{
isShow = true;
}
} );
timeDlg.show();
Answer 12:
您可以覆盖onCancel()和使用setOnDismissListener()来检测阴性用户操作。 并配有DatePickerDialog.BUTTON_POSITIVE你知道用户想要设置一个新的日期。
DatePickerDialog mDPD = new DatePickerDialog(
getActivity(), mOnDateSetListener, mYear, mMonth, mDay);
mDPD.setOnCancelListener(new OnCancelListener() {
@Override
public void onCancel(DialogInterface dialog) {
// do something onCancek
setDate = false;
}
});
mDPD.setOnDismissListener(new OnDismissListener() {
@Override
public void onDismiss(DialogInterface arg0) {
// do something onDismiss
setDate = false;
}
});
mDPD.setButton(DatePickerDialog.BUTTON_POSITIVE, "Finish", new DatePickerDialog.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
// user set new date
setDate = true;
}
});
然后检查的setDate:
public void onDateSet(DatePicker view, int year, int month, int day) {
if(setDate){
//do something with new date
}
}
Answer 13:
这里是我的解决方法类DatePickerDialog上取消按钮以及由后退按钮放弃它。 复制和在DatePickerDialog的风格使用(因为听众是有状态的,我们必须创建时使用,否则更多的代码需要,使之它的工作原理新的实例)
使用:
new FixedDatePickerDialog(this,
new FixedOnDateSetListener() {
@Override
public void onDateSet(DatePicker view, int year,
int monthOfYear, int dayOfMonth) {
if (isOkSelected()) {
// when DONE button is clicked
}
}
}, year, month, day).show();
类:
public class FixedDatePickerDialog extends DatePickerDialog {
private final FixedOnDateSetListener fixedCallback;
public FixedDatePickerDialog(Context context,
FixedOnDateSetListener callBack, int year, int monthOfYear,
int dayOfMonth) {
super(context, callBack, year, monthOfYear, dayOfMonth);
fixedCallback = callBack;
this.setButton(DialogInterface.BUTTON_NEGATIVE,
context.getString(R.string.cancel), this);
this.setButton(DialogInterface.BUTTON_POSITIVE,
context.getString(R.string.done), this);
}
@Override
public void onClick(DialogInterface dialog, int which) {
if (which == BUTTON_POSITIVE) {
fixedCallback.setOkSelected(true);
} else {
fixedCallback.setOkSelected(false);
}
super.onClick(dialog, which);
}
public abstract static class FixedOnDateSetListener implements
OnDateSetListener {
private boolean okSelected = false;
@Override
abstract public void onDateSet(DatePicker view, int year,
int monthOfYear, int dayOfMonth);
public void setOkSelected(boolean okSelected) {
this.okSelected = okSelected;
}
public boolean isOkSelected() {
return okSelected;
}
}
}
Answer 14:
我使用的日期选择器,时间选择和数量采摘。 数采摘调用onValueChanged只要用户选择一个号码,选择器被解雇之前,我已经有结构类似这样的做一些事情,只有当选择器被驳回值:
public int interimValue;
public int finalValue;
public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
this.interimValue = newVal;
}
public void onDismiss(DialogInterface dialog) {
super.onDismiss(dialog);
this.finalValue = this.interimValue;
}
我扩展了这种设置自定义onClickListeners为我的按钮,有一个说法,看看哪个按钮被点击。 现在,我可以检查之前,我把我的终值哪个按钮被窃听:
public int interimValue;
public int finalValue;
public boolean saveButtonClicked;
public void setup() {
picker.setButton(DialogInterface.BUTTON_POSITIVE, getString(R.string.BUTTON_SAVE), new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
picker.onClick(dialog, which); // added for Android 5.0
onButtonClicked(true);
}
});
picker.setButton(DialogInterface.BUTTON_NEGATIVE, getString(R.string.BUTTON_CANCEL), new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
picker.onClick(dialog, which); // added for Android 5.0
onButtonClicked(false);
}
});
}
public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
this.interimValue = newVal;
}
public void onButtonClicked(boolean save) {
this.saveButtonClicked = save;
}
public void onDismiss(DialogInterface dialog) {
super.onDismiss(dialog);
if (this.saveButtonClicked) {
// save
this.finalValue = this.interimValue;
} else {
// cancel
}
}
然后我说扩展与日期和时间类型日期和时间选择器,以及用于数字采摘int类型的工作。
我张贴了这个,因为我认为这是比上面的一些解决方案的简单,但现在,我已经包括了所有的代码,我想这不是简单多了! 但它很好地融入我已经有结构。
更新棒棒糖:显然,这个错误不会发生在所有的Android 4.1-4.4设备,因为我收到了来自用户,其日期和时间选择器不调用onDateSet和onTimeSet回调少数报道。 而这个bug被正式固定的是Android 5.0。 我的方法只能工作在其中的bug存在的设备,因为我的自定义按钮没有调用对话框的onClick处理程序,这是唯一的地方onDateSet和onTimeSet当错误是不存在被调用。 我更新我上面的代码中调用该对话框的onClick,所以现在它的工作原理错误是否存在。
Answer 15:
我喜欢大卫Cesarino的回答以上,但想要的东西,这是在更换破碎的对话框的下降,就可能丢失取消/已取消的行为不正确任何对话会工作。 下面是派生类DatePickerDialog / TimePickerDialog应该工作在更换下降。 这些都不是自定义视图。 它使用的系统对话框,而只是改变了取消/返回按钮的行为按预期运行。
这应该在API级别3和更高的工作。 由此可见,Android的基本上任何版本(我测试的豆形软糖,特别棒棒糖)。
DatePickerDialog:
package snappy_company_name_here;
import android.content.Context;
import android.content.DialogInterface;
import android.widget.DatePicker;
/**
* This is a modified version of DatePickerDialog that correctly handles cancellation behavior since it's broken on jellybean and
* kitkat date pickers.
*
* Here is the bug: http://code.google.com/p/android/issues/detail?id=34833
* Here is an SO post with a bunch of details: http://stackoverflow.com/questions/11444238/jelly-bean-datepickerdialog-is-there-a-way-to-cancel
*
* @author stuckj, created on 5/5/15.
*/
public class DatePickerDialog extends android.app.DatePickerDialog implements DialogInterface.OnClickListener
{
final CallbackHelper callbackHelper;
// NOTE: Must be static since we're using it in a super constructor call. Which is annoying, but necessary
private static class CallbackHelper implements OnDateSetListener
{
private final OnDateSetListener callBack;
private boolean dialogButtonPressHandled = false; // To prevent setting the date when the dialog is dismissed...
// NOTE: Must be static since we're using it in a super constructor call. Which is annoying, but necessary
public CallbackHelper(final OnDateSetListener callBack)
{
this.callBack = callBack;
}
@Override
public void onDateSet(final DatePicker view, final int year, final int monthOfYear, final int dayOfMonth)
{
if (!dialogButtonPressHandled && (callBack != null))
{
callBack.onDateSet(view, year, monthOfYear, dayOfMonth);
}
}
}
/**
* Sets the positive and negative buttons to use the dialog callbacks we define.
*/
private void setButtons(final Context context)
{
setButton(DialogInterface.BUTTON_NEGATIVE, context.getString(android.R.string.cancel), this);
setButton(DialogInterface.BUTTON_POSITIVE, context.getString(android.R.string.ok), this);
}
@Override
public void onClick(final DialogInterface dialog, final int which)
{
// ONLY call the super method in the positive case...
if (which == DialogInterface.BUTTON_POSITIVE)
{
super.onClick(dialog, which);
}
callbackHelper.dialogButtonPressHandled = true;
}
@Override
public void onBackPressed()
{
getButton(DialogInterface.BUTTON_NEGATIVE).performClick();
}
// Need this so we can both pass callbackHelper to the super class and save it off as a variable.
private DatePickerDialog(final Context context,
final OnDateSetListener callBack,
final int year,
final int monthOfYear,
final int dayOfMonth,
final CallbackHelper callbackHelper)
{
super(context, callbackHelper, year, monthOfYear, dayOfMonth);
this.callbackHelper = callbackHelper;
setButtons(context);
}
/**
* @param context The context the dialog is to run in.
* @param callBack How the parent is notified that the date is set.
* @param year The initial year of the dialog.
* @param monthOfYear The initial month of the dialog.
* @param dayOfMonth The initial day of the dialog.
*/
public DatePickerDialog(final Context context,
final OnDateSetListener callBack,
final int year,
final int monthOfYear,
final int dayOfMonth)
{
this(context, callBack, year, monthOfYear, dayOfMonth, new CallbackHelper(callBack));
}
// Need this so we can both pass callbackHelper to the super class and save it off as a variable.
private DatePickerDialog(final Context context, final int theme, final OnDateSetListener listener, final int year,
final int monthOfYear, final int dayOfMonth, final CallbackHelper callbackHelper)
{
super(context, theme, callbackHelper, year, monthOfYear, dayOfMonth);
this.callbackHelper = callbackHelper;
setButtons(context);
}
/**
* @param context The context the dialog is to run in.
* @param theme the theme to apply to this dialog
* @param listener How the parent is notified that the date is set.
* @param year The initial year of the dialog.
* @param monthOfYear The initial month of the dialog.
* @param dayOfMonth The initial day of the dialog.
*/
public DatePickerDialog(final Context context, final int theme, final OnDateSetListener listener, final int year,
final int monthOfYear, final int dayOfMonth)
{
this(context, theme, listener, year, monthOfYear, dayOfMonth, new CallbackHelper(listener));
}
}
TimePickerDialog:
package snappy_company_name_here;
import android.content.Context;
import android.content.DialogInterface;
import android.widget.TimePicker;
/**
* This is a modified version of TimePickerDialog that correctly handles cancellation behavior since it's broken on jellybean and
* kitkat date pickers.
*
* Here is the bug: http://code.google.com/p/android/issues/detail?id=34833
* Here is an SO post with a bunch of details: http://stackoverflow.com/questions/11444238/jelly-bean-datepickerdialog-is-there-a-way-to-cancel
*
* @author stuckj, created on 5/5/15.
*/
public class TimePickerDialog extends android.app.TimePickerDialog implements DialogInterface.OnClickListener
{
final CallbackHelper callbackHelper;
// NOTE: Must be static since we're using it in a super constructor call. Which is annoying, but necessary
private static class CallbackHelper implements OnTimeSetListener
{
private final OnTimeSetListener callBack;
private boolean dialogButtonPressHandled = false; // To prevent setting the date when the dialog is dismissed...
// NOTE: Must be static since we're using it in a super constructor call. Which is annoying, but necessary
public CallbackHelper(final OnTimeSetListener callBack)
{
this.callBack = callBack;
}
@Override
public void onTimeSet(final TimePicker view, final int hourOfDay, final int minute)
{
if (!dialogButtonPressHandled && (callBack != null))
{
callBack.onTimeSet(view, hourOfDay, minute);
}
}
}
/**
* Sets the positive and negative buttons to use the dialog callbacks we define.
*/
private void setButtons(final Context context)
{
setButton(DialogInterface.BUTTON_NEGATIVE, context.getString(android.R.string.cancel), this);
setButton(DialogInterface.BUTTON_POSITIVE, context.getString(android.R.string.ok), this);
}
@Override
public void onClick(final DialogInterface dialog, final int which)
{
// ONLY call the super method in the positive case...
if (which == DialogInterface.BUTTON_POSITIVE)
{
super.onClick(dialog, which);
}
callbackHelper.dialogButtonPressHandled = true;
}
@Override
public void onBackPressed()
{
getButton(DialogInterface.BUTTON_NEGATIVE).performClick();
}
// Need this so we can both pass callbackHelper to the super class and save it off as a variable.
private TimePickerDialog(final Context context,
final OnTimeSetListener callBack,
final int hourOfDay, final int minute, final boolean is24HourView, final CallbackHelper callbackHelper)
{
super(context, callbackHelper, hourOfDay, minute, is24HourView);
this.callbackHelper = callbackHelper;
setButtons(context);
}
/**
* @param context Parent.
* @param callBack How parent is notified.
* @param hourOfDay The initial hour.
* @param minute The initial minute.
* @param is24HourView Whether this is a 24 hour view, or AM/PM.
*/
public TimePickerDialog(final Context context,
final OnTimeSetListener callBack,
final int hourOfDay, final int minute, final boolean is24HourView)
{
this(context, callBack, hourOfDay, minute, is24HourView, new CallbackHelper(callBack));
}
// Need this so we can both pass callbackHelper to the super class and save it off as a variable.
private TimePickerDialog(final Context context, final int theme, final OnTimeSetListener callBack, final int hourOfDay,
final int minute, final boolean is24HourView, final CallbackHelper callbackHelper)
{
super(context, theme, callbackHelper, hourOfDay, minute, is24HourView);
this.callbackHelper = callbackHelper;
setButtons(context);
}
/**
* @param context Parent.
* @param theme the theme to apply to this dialog
* @param callBack How parent is notified.
* @param hourOfDay The initial hour.
* @param minute The initial minute.
* @param is24HourView Whether this is a 24 hour view, or AM/PM.
*/
public TimePickerDialog(final Context context, final int theme, final OnTimeSetListener callBack, final int hourOfDay,
final int minute, final boolean is24HourView)
{
this(context, theme, callBack, hourOfDay, minute, is24HourView, new CallbackHelper(callBack));
}
}
Answer 16:
我的工作版本使用Lambda表达式ClearButton:
public class DatePickerFragment extends DialogFragment {
private OnDateSelectListener dateSelectListener;
private OnDateClearListener dateClearListener;
public void setDateSelectListener(OnDateSelectListener dateSelectListener) {
this.dateSelectListener = dateSelectListener;
}
public void setDateClearListener(OnDateClearListener dateClearListener) {
this.dateClearListener = dateClearListener;
}
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
// Use the current date as the default date in the picker
final Calendar c = Calendar.getInstance();
int year = c.get(Calendar.YEAR);
int month = c.get(Calendar.MONTH);
int day = c.get(Calendar.DAY_OF_MONTH);
// Create a new instance of DatePickerDialog and return it
DatePickerDialog dialog = new DatePickerDialog(getActivity(), null, year, month, day);
dialog.setCancelable(true);
dialog.setCanceledOnTouchOutside(true);
dialog.setTitle("Select Date");
dialog.setButton(BUTTON_POSITIVE, ("Done"), (dialog1, which) -> {
DatePicker dp = dialog.getDatePicker();
dialog.dismiss();
dateSelectListener.onDateSelect(dp.getYear(), dp.getMonth(), dp.getDayOfMonth());
});
dialog.setButton(BUTTON_NEUTRAL, ("Clear"), (dialog1, which) -> {
dialog.dismiss();
dateClearListener.onDateClear();
});
dialog.setButton(BUTTON_NEGATIVE, ("Cancel"), (dialog1, which) -> {
if (which == DialogInterface.BUTTON_NEGATIVE) {
dialog.cancel();
}
});
dialog.getDatePicker().setCalendarViewShown(false);
return dialog;
}
public interface OnDateClearListener {
void onDateClear();
}
public interface OnDateSelectListener {
void onDateSelect(int year, int monthOfYear, int dayOfMonth);
}
}
Answer 17:
对于TimePickerDialog解决方法可以如下:
TimePickerDialog createTimePickerDialog(Context context, int themeResId, TimePickerDialog.OnTimeSetListener orignalListener,
int hourOfDay, int minute, boolean is24HourView) {
class KitKatTimeSetListener implements TimePickerDialog.OnTimeSetListener {
private int hour;
private int minute;
private KitKatTimeSetListener() {
}
@Override
public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
this.hour = hourOfDay;
this.minute = minute;
}
private int getHour() { return hour; }
private int getMinute() {return minute; }
};
KitKatTimeSetListener kitkatTimeSetListener = new KitKatTimeSetListener();
TimePickerDialog timePickerDialog = new TimePickerDialog(context, themeResId, kitkatTimeSetListener, hourOfDay, minute, is24HourView);
timePickerDialog.setButton(DialogInterface.BUTTON_POSITIVE, context.getString(android.R.string.ok), (dialog, which) -> {
timePickerDialog.onClick(timePickerDialog, DialogInterface.BUTTON_POSITIVE);
orignalListener.onTimeSet(new TimePicker(context), kitkatTimeSetListener.getHour(), kitkatTimeSetListener.getMinute());
dialog.cancel();
});
timePickerDialog.setButton(DialogInterface.BUTTON_NEGATIVE, context.getString(android.R.string.cancel), (dialog, which) -> {
dialog.cancel();
});
return timePickerDialog;
}
我委托的所有事件为包装KitKatSetTimeListener,只有还击到的情况下,点击BUTTON_POSITIVE原OnTimeSetListener。
Answer 18:
测试一些张贴在这里sugestions后,我个人认为这个解决方案是最简单的。 我通过“空”为我在DatePickerDialog构造侦听器,然后当我点击“确定”按钮,我打电话给我的onDateSearchSetListener:
datePickerDialog = new DatePickerDialog(getContext(), null, dateSearch.get(Calendar.YEAR), dateSearch.get(Calendar.MONTH), dateSearch.get(Calendar.DAY_OF_MONTH));
datePickerDialog.setCancelable(false);
datePickerDialog.setButton(DialogInterface.BUTTON_POSITIVE, getString(R.string.dialog_ok), new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Log.d("Debug", "Correct");
onDateSearchSetListener.onDateSet(datePickerDialog.getDatePicker(), datePickerDialog.getDatePicker().getYear(), datePickerDialog.getDatePicker().getMonth(), datePickerDialog.getDatePicker().getDayOfMonth());
}
});
datePickerDialog.setButton(DialogInterface.BUTTON_NEGATIVE, getString(R.string.dialog_cancel), new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
Log.d("Debug", "Cancel");
dialog.dismiss();
}
});
Answer 19:
我知道这个帖子一直在这里快一年了,但我想我应该张贴我的发现。 你仍然可以保持监听器(而不是将其设置为糊),仍然如预期有这样的工作。 关键是隐式设置的“OK”或(和)“取消”按钮。 我测试了它和它的作品感激我。 对方当然不会被解雇两次。
看看下面这个例子,
private void setTime(){
final Calendar c = Calendar.getInstance();
int hour = c.get(Calendar.HOUR_OF_DAY);
int minute = c.get(Calendar.MINUTE);
final TimePickerDialog timepicker = new TimePickerDialog(this.getActivity(),
timePickerListener,
hour,
minute,
DateFormat.is24HourFormat(getActivity()));
timepicker.setButton(DialogInterface.BUTTON_POSITIVE, "Print", new
android.content.DialogInterface.OnClickListener(){
@Override
public void onClick(DialogInterface dialog,int which) {
print = true;
timepicker.dismiss();
}
});
timepicker.setButton(DialogInterface.BUTTON_NEGATIVE, "Cancel", new
android.content.DialogInterface.OnClickListener(){
@Override
public void onClick(DialogInterface dialog,int which){
print = false;
timepicker.dismiss();
}
});
timepicker.setCancelable(false);
timepicker.show();
}
文章来源: Jelly Bean DatePickerDialog — is there a way to cancel?