问题
I have this code here on the options menu
Dialog dialog = new Dialog(ScheduleActivity.this);
dialog.setTitle("Add Event");
dialog.setContentView(R.layout.add_even_on);
Button datePicker = (Button) dialog.findViewById(R.id.datePicker);
final DialogFragment dateFrag = new MyDatePicker();
datePicker.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
dateFrag.show(getSupportFragmentManager(), "datePicker");
}
});
dialog.show();
when, say "Add Event" on the option menu is clicked, a Dialog appears, with a button that shows a DatePickerDialog and beside it is a TextView that reflects the date chosen in the DatePickerDialog, here is the class I got from Androids Developer on how to use the DatePickerDialog.
class MyDatePicker extends DialogFragment implements DatePickerDialog.OnDateSetListener {
int pYear;
int pDay;
int pMonth;
@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
return new DatePickerDialog(getActivity(), this, year, month, day);
}
public void onDateSet(DatePicker view, int year, int month, int day) {
pYear = year;
pDay = day;
pMonth = month;
}
}
So my problem is that how do i get the Value in milleseconds when i click "Set" on the DatePickerDialog which in turn automatically closes it, and returns to my Dialog which contains the button which open the DatePickerDialog and a Textview which reflects watever date is chosen the DatePickerDialog... i wont show the one i chose inside the DatePickerDialog...
Here is a picture of what i mean,
So when i click on the Pick Date Button a DatePickerDialog box appears as seen on the next picture
and when i click set, i wanted to take into account the value in millseconds from that DatePickerDialog
回答1:
Here I Provide Some Code Hope It Helps You..
public class NewReminder extends Activity {
private static final int DATE_DIALOG_ID = 1;
private int year;
private int month;
private int day;
EditText editTextDate;
private String currentDate;
private Context context;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.addnewreminder);
initialize();
context = getApplicationContext();
OnClickListener listenerDate = new OnClickListener() {
@Override
public void onClick(View arg0) {
final Calendar c = Calendar.getInstance();
year = c.get(Calendar.YEAR);
month = c.get(Calendar.MONTH);
day = c.get(Calendar.DAY_OF_MONTH);
showDialog(DATE_DIALOG_ID);
}
};
editTextDate.setOnClickListener(listenerDate);
}
private void initialize() {
// TODO Auto-generated method stub
editTextDate = (EditText) findViewById(R.id.editTextDate);
}
private void updateDisplay() {
currentDate = new StringBuilder().append(day).append(".")
.append(month + 1).append(".").append(year).toString();
Log.i("DATE", currentDate);
}
OnDateSetListener myDateSetListener = new OnDateSetListener() {
@Override
public void onDateSet(DatePicker datePicker, int i, int j, int k) {
year = i;
month = j;
day = k;
updateDisplay();
editTextDate.setText(currentDate);
}
};
@Override
protected Dialog onCreateDialog(int id) {
switch (id) {
case DATE_DIALOG_ID:
return new DatePickerDialog(this, myDateSetListener, year, month,
day);
}
return null;
}
}
回答2:
Old dialogs are deprecated. Implements fragments:
Migrate your Activity to Fragment Activity:
public class YourActivity extends FragmentActivity
Create Fragment Dialog:
public class TimePickerFragment extends DialogFragment {
private OnDateSetListener listener;
public TimePickerFragment(OnDateSetListener listener) {
this.listener=listener;
}
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
// Use the current time as the default values 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);
// Create a new instance of TimePickerDialog and return it
return new DatePickerDialog(getActivity(), listener, year,month,day);
}
}
Implements interface (package: import android.app.DatePickerDialog.OnDateSetListener):
public class YourActivity extends FragmentActivity implements OnDateSetListener{
@Override
public void onDateSet(DatePicker view, int year, int monthOfYear,int dayOfMonth) {
}
}
Add showDialog function:
public class YourActivity extends FragmentActivity implements OnDateSetListener{
showDateDialog(){
FragmentManager fm = getSupportFragmentManager();
TimePickerFragment newFragment = new TimePickerFragment(this);
newFragment.show(fm, "date_picker");
}
@Override
public void onDateSet(DatePicker view, int year, int monthOfYear,int dayOfMonth) {
}
}
回答3:
In XML add a TextView and a Button
<TextView
android:id="@+id/searchText"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView" />
<Button
android:id="@+id/search"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Search" />
Add following code in java file
public class DatePickerDialogExample extends Activity {
TextView txtDate;
private int mYear, mMonth, mDay, mHour, mMinute;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
txtDate = (TextView) findViewById(R.id.searchText);
Button search = (Button) findViewById(R.id.search);
search.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// Process to get Current Date
final Calendar c = Calendar.getInstance();
mYear = c.get(Calendar.YEAR);
mMonth = c.get(Calendar.MONTH);
mDay = c.get(Calendar.DAY_OF_MONTH);
// Launch Date Picker Dialog
DatePickerDialog dpd = new DatePickerDialog(PrayTimeActivity.this,
new DatePickerDialog.OnDateSetListener() {
@Override
public void onDateSet(DatePicker view, int year,
int monthOfYear, int dayOfMonth) {
// Display Selected date in textbox
txtDate.setText(dayOfMonth + "-"
+ (monthOfYear + 1) + "-" + year);
}
}, mYear, mMonth, mDay);
dpd.show();
}
});
}
}
回答4:
You can try this code.. it will surely helpful to u.. No Doubt!
protected Dialog onCreateDialog(int id) {
Calendar c=Calendar.getInstance();
int Sysday=c.get(Calendar.DAY_OF_MONTH);
int Sysmonth=c.get(Calendar.MONTH);
int Sysyear=c.get(Calendar.YEAR);
int Sysmin=c.get(Calendar.MINUTE);
int Syshour=c.get(Calendar.HOUR);
switch (id) {
case TIME_DIALOG:
return new TimePickerDialog(this, myTimePicker , Syshour, Sysmin, false);
case DATE_DIALOG:
return new DatePickerDialog(this, myDatePicker, Sysyear, Sysmonth, Sysday);
}
return null;
}
回答5:
This is my helper function which get context and TextView as parameter and sets Date on that text view when user select a date:
public static void showDate(final Context context, final TextView textView) {
if (textView != null) {
final Calendar myCalendar = Calendar.getInstance();
DatePickerDialog.OnDateSetListener date = new DatePickerDialog.OnDateSetListener() {
@Override
public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
// TODO Auto-generated method stub
myCalendar.set(Calendar.YEAR, year);
myCalendar.set(Calendar.MONTH, monthOfYear);
myCalendar.set(Calendar.DAY_OF_MONTH, dayOfMonth);
String myFormat = "MM/dd/yy"; // In which you need put here
SimpleDateFormat sdf = new SimpleDateFormat(myFormat, Locale.US);
//UIHelper.showLongToastInCenter(context, sdf.format(myCalendar.getTime()));
textView.setText(sdf.format(myCalendar.getTime()));
}
};
new DatePickerDialog(context, date, myCalendar.get(Calendar.YEAR), myCalendar.get(Calendar.MONTH), myCalendar.get(Calendar.DAY_OF_MONTH)).show();
} else {
UIHelper.showLongToastInCenter(context, "Unable to show Date picker");
}
}
回答6:
Try this code it is definately work:
final Calendar c = Calendar.getInstance();
mYear = c.get(Calendar.YEAR);
mMonth = c.get(Calendar.MONTH);
mDay = c.get(Calendar.DAY_OF_MONTH);
DatePickerDialog dpd = new DatePickerDialog(getActivity(),
new DatePickerDialog.OnDateSetListener() {
@Override
public void onDateSet(DatePicker view, int year,
int monthOfYear, int dayOfMonth) {
birth_Date.setText(dayOfMonth + "-"
+ (monthOfYear + 1) + "-" + year);
}
}, mYear, mMonth, mDay);
dpd.show();
回答7:
Calendar c1 = Calendar.getInstance();
int year = c1.get(Calendar.YEAR);
int month = c1.get(Calendar.MONTH);
int day = c1.get(Calendar.DAY_OF_MONTH);
DatePickerDialog.OnDateSetListener myDateListener = new DatePickerDialog.OnDateSetListener() {
public void onDateSet(DatePicker arg0, int arg1, int arg2, int arg3) {
if(arg0.isShown()){
//do further code here
}
}
};
DatePickerDialog dp = new DatePickerDialog(YourActivity.this, myDateListener, year, month, day);
dp.show();
回答8:
Use it like this in Koltin
DatePickerDialog(this as Activity, DatePickerDialog.OnDateSetListener { p0, y, m, _ -> func.invoke(y, m + 1) }, c.get(Calendar.YEAR),
c.get(Calendar.MONTH),
c.get(Calendar.DAY_OF_MONTH))
.show()
Use it from anywhere
tvDateFrom.click {
showDatePicker(c) { y, m ->
Utils.debugger("DATE FROM ", " y + $y m $m")
tvDateFrom.text = "$m-$y".toDate()
}
}
来源：https://stackoverflow.com/questions/11895606/android-datepicker-and-datepicker-dialog