Android notes -- date & amp; time (date and time dialog box)

Android notes -- date & amp; time (date and time Selection dialog box)
TimePickerDialog (Time Selection dialog box)

Create TimePickerDialog time dialog box:

1. Create a class to inherit DialogFragement

2. Override the onCreateDialog () method and return a TimePickerDialog object.

3. Implement the OnTimeSetListener interface of TimePickerDialog to receive a callback.

DatePickerDialog (date selection dialog box)

Create DatePickerDialog date dialog box:

1. Create a class to inherit DialogFragment

2. Override the onCreateDialog () method and return a TimePickerDialog object.

3. Implement the OnDateSetListener interface of DatePickerDialog to receive a callback.

DatePickerDialog and TimePickerDialog are provided by Android to bring up a date and time selection dialog box. We can get a date and time dialog box by instantiating DatePickerDialog and TimePickerDialog in the program. Both classes are subclasses of AlertDialog.

I provide a Baidu official description of Picker, may be helpful for understanding this article: http://wenku.baidu.com/link? Url = U77TPsl99lpf8QrGD2h6XKA6xJqzk-JseCnJhC9VmgYoWckhCZ8-3F3TzOkOZGLverjwt6JitlhW-wWMODAOQLtEpVxryaZxNlCQstOjLCK

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Source code:

Html

Java

Import java. util. calendar; import android. OS. bundle; import android. annotation. suppressLint; import android. app. activity; import android. app. datePickerDialog; import android. app. dialog; import android. app. dialogFragment; import android. app. timePickerDialog; import android. text. format. dateFormat; import android. view. menu; import android. view. view; import android. widget. button; import android. widget. datePicker; import android. widget. textView; import android. widget. timePicker; @ SuppressLint ({"NewApi", "ValidFragment"}) public class MainActivity extends Activity {private Button btnSetTime; private TextView TV _setTime; private TextView TV _setDate; protected void onCreate) {super. onCreate (savedInstanceState); setContentView (R. layout. activity_main); // instantiate the object, bind btnSetTime = (Button) findViewById (R. id. button#settime); TV _setTime = (TextView) findViewById (R. id. TV _settime); TV _setDate = (TextView) findViewById (R. id. TV _setdate);} // set the date event handling method public void setDateClick (View v) {SetDateDialog sdt = new SetDateDialog (); sdt. show (getFragmentManager (), "datePicker");} // set the time event handling method public void setTimeClick (View v) {SetTimeDialog std = new settimediick (); std. show (getFragmentManager (), "timePicker");} public boolean onCreateOptionsMenu (Menu menu) {// Inflate the menu; this adds items to the action bar if it is present. getMenuInflater (). inflate (R. menu. main, menu); return true;} // class SetDateDialog extends DialogFragment implements DatePickerDialog in the create date dialog box. onDateSetListener {public Dialog onCreateDialog (Bundle savedInstanceState) {// Calendar is an abstract class that obtains instances through getInstance () and sets it to the system default time final Calendar c = Calendar. getInstance (); // get year, month, day int year = c. get (Calendar. YEAR); int month = c. get (Calendar. MONTH); int day = c. get (Calendar. DAY_OF_MONTH); DatePickerDialog dpd = new DatePickerDialog (getActivity (), this, year, month, day); return dpd;} public void onDateSet (DatePicker view, int year, int month, int day) {TV _setDate.setText (year + "year" + (month + 1) + "month" + day + "day ");}} // create time dialog box @ SuppressLint ("NewApi") class SetTimeDialog extends DialogFragment implements TimePickerDialog. onTimeSetListener {@ SuppressLint ("NewApi") public Dialog onCreateDialog (Bundle savedInstanceState) {// get the hour, minutes final Calendar c = Calendar. getInstance (); int hour = c. get (Calendar. HOUR_OF_DAY); int minute = c. get (Calendar. MINUTE); TimePickerDialog tpd = new TimePickerDialog (getActivity (), this, hour, minute, DateFormat. is24HourFormat (getActivity (); return tpd;} public void onTimeSet (TimePicker view, int hourOfDay, int minute) {TV _setTime.setText (hourOfDay + ":" + minute );}}}

Effect display: