Android Development Datepickerdialog and Timepickerdialog features and usage

The function of Datepickerdialog and Timepickerdialog is relatively simple, the usage is very simple, as long as the following two steps can be.

?  Create Datepickerdialog, Timepickerdialog instances with the New keyword, and invoke their show () method to display the Date selection dialog box and the Time Selection dialog box.

?  For Datepickerdialog, timepickerdialog binding listener, this can ensure that the user through Datepickerdialog, Timepickerdialog set event is trigger listener, This allows you to get user-set events through the listener.

Timepickerdialog (Time selection dialog box) Overview:

A dialog box that uses Timepicker to provide a time selection for the user.

class Structure:

Java.lang.Object   ? android.app.Dialog    android.app.AlertDialog?     android.app.TimePickerDialog

Construction Method:

Public constructors
timepickerdialog (context  context,  Timepickerdialog.ontimesetlistener  callback, int hourofday, int minute, Boolean Is24hourview)
timepickerdialog (context  context, int theme,  Timepickerdialog.ontimesetlistener  callback, int hourofday, int minute, Boolean Is24hourview)

Description

Public timepickerdialog (context context, Timepickerdialog.ontimesetlistener Callback,inthourofday, int minute, Boolean is24hourview)

Parameters:

parameter	Description
Context	To run the component's activity.
CallBack	When the user chooses a good time, notifies the app of the callback function.
Hourofday	for the initial hour.
Minute	The initial minute.
Is24hourview	Whether the 24-hour system is used.

Public timepickerdialog (Context context,int teme, timepickerdialog.ontimesetlistener Callback,int hourofday, int minute, Boolean is24hourview)

Parameters:

Parameters	Description
Context	Run the component's activity.
Teme	Apply the theme on the Time selection dialog box.
CallBack	Notifies the application of the callback function after the user has chosen a good time.
Hourofday	The initial hour.
Minute	The initial minute.
Is24hourview	Whether to use the 24-hour system.

Public Method:

Public Methods
void	OnClick (dialoginterface Dialog, int which) This method is called back when the button on the dialog box is clicked.
void	onrestoreinstancestate (Bundle savedinstancestate) from a previously saved Bundle restores the status of the dialog box in the
Bundle	onsaveinstancestate () saves the State of the dialog box to Bundle in .
void	ontimechanged (timepicker view, int hourofday, int minute) Callback the method when the time is changed.
void	UpdateTime (int hourofday, int minutofhour) Update Time

Example:

public static class Timepickerfragment extends Dialogfragment                            implements Timepickerdialog.ontimesetlistener {    @Override public    Dialog oncreatedialog (Bundle savedinstancestate) {//Use the current time as the        default VA Lues for the picker        final Calendar c = calendar.getinstance ();        int hour = C.get (calendar.hour_of_day);        int minute = C.get (Calendar.minute);        Create a new instance of Timepickerdialog and return it        return new Timepickerdialog (Getactivity (), this, hour, minu Te,                Dateformat.is24hourformat (Getactivity ()));    }    public void Ontimeset (timepicker view, int hourofday, int. minute) {//do something with the time chosen by the        user< c13/>}}

Datepickerdialog (Time selection dialog box) Overview:

A simple dialog box with DatePicker that provides the user with a date selection.

class Structure:

Java.lang.Object   ? android.app.Dialog    android.app.AlertDialog?     android.app.DatePickerDialog

Construction Method:

Public constructors

datepickerdialog " Span style= "COLOR: #222222" > ( context  CONTEXT,  datepickerdialog.ondatesetlistener  callback, int year, int monthofyear, int dayofmonth)

Datepickerdialog (context context, int theme, datepickerdialog.ondatesetlistener callBack, int year, int monthofyear, int dayofmonth)

Description

Public datepickerdialog(context context, Datepickerdialog.ondatesetlistener callBack, int year, int monthofyear, intdayofmonth)

Parameters:

Parameters	Description
Context	Run the component's activity.
CallBack	Notifies the application of the callback function after the user has selected a date.
Year	The initial year.
Monthofyear	The initial month.
DayOfMonth	The initial day.

Public datepickerdialog(context context, int theme, Datepickerdialog.ondatesetlistener callBack, int year, int monthofyear, intdayofmonth)

Parameters:

Parameters	Description
Context	Run the component's activity.
Theme	Apply the theme on the Date selection dialog box.
CallBack	Notifies the application of the callback function after the user has selected a date.
Year	The initial year.
Monthofyear	The initial month.
DayOfMonth	The initial day.

Public Method:

Public Methods
DatePicker	Getdatepicker () Gets the Date selection dialog box.
void	OnClick (dialoginterface Dialog, int which) This method is called back when the button on the dialog box is clicked.
void	ondatechanged (DatePicker View, int year, int month, Int. day) Callback the method when the date changes.
void	onrestoreinstancestate (Bundle savedinstancestate) This method is called back when the button on the dialog box is clicked.
Bundle	onsaveinstancestate () saves the State of the dialog box to Bundle the.
void	updatedate (int year, int monthofyear, int dayofmonth) Sets the current date.

 Example:

public static class Datepickerfragment extends Dialogfragment                            implements Datepickerdialog.ondatesetlistener {    @Override public    Dialog oncreatedialog (Bundle savedinstancestate) {//Use the current date as the        default Da Te 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        return new Datepickerdialog (Getactivity (), this, year, Mont h, day);    }    public void Ondateset (DatePicker view, int year, int month, Int. day) {        //do something with the date chosen by the US Er    }}