Open a calendar in a Alertdialog and save the chosen date

Question

I’m creating an app and I need that in one component EditText, when I click on it, a calendar appears (I thought to put in a AlertDialog because of the add and cancel buttons, but if anyone has a better idea I’d appreciate it if you share).

The person would choose a date, the date would be on EditText in the form of "dd/mm/yyyy", and that date would be saved later in the database in that format.

I have a layout with a CalendarView, the class that accompanies the layout, and this class, when clicked on a date, would lead to another class that would capture that date:

Intent intent = getIntent();
Long dateSelected = intent.getLongExtra("dataLongMiliseconds", 0);
Date date = new Date(dateSelected);

The problem is that I am not able to program this in a Fragment where it contains a form where the EditText date.

Answer 1

Do the following in the fragment your editText creates a Listener for it and initializes the calendar as follows:

   seuEditText.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

         final Calendar calendar = Calendar.getInstance();
            int year = calendar.get(Calendar.YEAR);
            int month = calendar.get(Calendar.MONTH);
            int day = calendar.get(Calendar.DAY_OF_MONTH);
            DatePickerDialog datePickerDialog = new DatePickerDialog(SuaActivity.this,
                    new DatePickerDialog.OnDateSetListener() {
                        @Override
                        public void onDateSet(DatePicker datePicker, int year, int month, int day) {
                            calendar.set(year, month, day);
                            String format = "dd/MM/yyyy";
                            SimpleDateFormat sdf = new SimpleDateFormat(format, Locale.ENGLISH);
                            Date date;

                            try {
                                date = sdf.parse(sdf.format(calendar.getTime()));
                                String dayS = new SimpleDateFormat("dd", Locale.ENGLISH).format(date);
                                String monthS = new SimpleDateFormat("MM", Locale.ENGLISH).format(date);
                                String yearS = new SimpleDateFormat("yyyy", Locale.ENGLISH).format(date);

                                seuEditText.setText((dayS + "/" + monthS + "/" + yearS));
                            } catch (ParseException ignored) {

                            }
                        }
                    }, year, month, day);
            datePickerDialog.show();
            datePickerDialog.getDatePicker();
        }

            }
        });

And to recover text in edittext:

seuEditText.getText().toString();

I hope this helps you. Any doubt just call me.

UPDATE:

To change the color theme of datepickerdialog do the following in the res/values/Styles folder, create a style:

 <style name="DialogTheme" parent="Theme.AppCompat.Light">
        <item name="colorAccent">#F1C46B</item>
    </style>

And then in the code passed above, when you initialize a new Datepickerdialog, put this theme after the context, and before the Ondatesetlistener(), like this:

        DatePickerDialog datePickerDialog = new  DatePickerDialog(SuaActivity.this, 
             R.style.DialogTheme, new DatePickerDialog.OnDateSetListener() {
        .
        .
        .

The Example of this theme changes the default color of the Dialog, but it is also possible to change other colors, for example:

<style name="DialogTheme" parent="Theme.AppCompat.Light">
    <item name="colorAccent">#ff6d00</item>
    <item name="colorControlActivated">#33691e</item>
    <item name="android:selectableItemBackgroundBorderless">#8E61DF</item>
    <item name="colorControlHighlight">#d50000</item>
</style>