Android DatePicker change to only Month and Year

2019-01-04 02:17发布

I have a DatePickerDialog and I want view only Month and Year. How can I change this code?

public void chooseDate2(View v) {
    new DatePickerDialog(
        act.this,
        d1,
        dateAndTime1.get(Calendar.YEAR) + 2,
        dateAndTime1.get(Calendar.MONTH),
        dateAndTime1.get(Calendar.DAY_OF_MONTH)
    ).show();
}
private void updateLabel2() {
    scadenza.setText(fmtDateAndTime.format(dateAndTime1.getTime()));           
}
DatePickerDialog.OnDateSetListener d1=new DatePickerDialog.OnDateSetListener() {
    public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
        dateAndTime1.set(Calendar.YEAR, year);
        dateAndTime1.set(Calendar.MONTH, monthOfYear);
        dateAndTime1.set(Calendar.DAY_OF_MONTH, dayOfMonth);
        updateLabel2();
    }
};

Thanks

6条回答
姐就是有狂的资本
2楼-- · 2019-01-04 02:27

I don't recommend using Reflection to do this kind of thing.

There is a simpler and more pretty way to do so:

((ViewGroup) datePickerDialog.getDatePicker()).findViewById(Resources.getSystem().getIdentifier("day", "id", "android")).setVisibility(View.GONE);

Be aware that .getDatePicker() method from DatePickerDialog works on API LEVEL >= 11.

In addition it does not work on API LEVEL >= 21.

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唯我独甜
3楼-- · 2019-01-04 02:35

Try the following code. It will show a DatePicker with only the year and month (without day)

private DatePickerDialog createDialogWithoutDateField() {
        DatePickerDialog dpd = new DatePickerDialog(this, null, 2014, 1, 24);
        try {
            java.lang.reflect.Field[] datePickerDialogFields = dpd.getClass().getDeclaredFields();
            for (java.lang.reflect.Field datePickerDialogField : datePickerDialogFields) {
                if (datePickerDialogField.getName().equals("mDatePicker")) {
                    datePickerDialogField.setAccessible(true);
                    DatePicker datePicker = (DatePicker) datePickerDialogField.get(dpd);
                    java.lang.reflect.Field[] datePickerFields = datePickerDialogField.getType().getDeclaredFields();
                    for (java.lang.reflect.Field datePickerField : datePickerFields) {
                        Log.i("test", datePickerField.getName());
                        if ("mDaySpinner".equals(datePickerField.getName())) {
                            datePickerField.setAccessible(true);
                            Object dayPicker = datePickerField.get(datePicker);
                            ((View) dayPicker).setVisibility(View.GONE);
                        }
                    }
                }
            }
        } 
        catch (Exception ex) {
        }
        return dpd;
    }

This method returns a date picker dialog. So , in your button's onClick method add the following code to display your dialog.

createDialogWithoutDateField().show();
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【Aperson】
4楼-- · 2019-01-04 02:36

More Advance form of Stephan Klein Answer .

As I have a requirement to make Year optional. And I have also handled date like february 28 and also handle leap year.

MonthYearPickerDialog

public class MonthYearPickerDialog extends DialogFragment {

    private DatePickerDialog.OnDateSetListener listener;
    private int daysOfMonth = 31;

    private NumberPicker monthPicker;
    private NumberPicker yearPicker;
    private NumberPicker dayPicker;

    private Calendar cal = Calendar.getInstance();

    public static final String MONTH_KEY = "monthValue";
    public static final String DAY_KEY = "dayValue";
    public static final String YEAR_KEY = "yearValue";

    int monthVal = -1 , dayVal = -1 , yearVal =-1 ;

    @Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        Bundle extras = getArguments();
        if(extras != null){
            monthVal = extras.getInt(MONTH_KEY , -1);
            dayVal = extras.getInt(DAY_KEY , -1);
            yearVal = extras.getInt(YEAR_KEY , -1);
        }
    }

    public static MonthYearPickerDialog newInstance(int monthIndex , int daysIndex , int yearIndex) {
        MonthYearPickerDialog f = new MonthYearPickerDialog();

        // Supply num input as an argument.
        Bundle args = new Bundle();
        args.putInt(MONTH_KEY, monthIndex);
        args.putInt(DAY_KEY, daysIndex);
        args.putInt(YEAR_KEY, yearIndex);
        f.setArguments(args);

        return f;
    }

    public void setListener(DatePickerDialog.OnDateSetListener listener) {
        this.listener = listener;
    }

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {

        //getDialog().setTitle("Add Birthday");

        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
        // Get the layout inflater
        LayoutInflater inflater = getActivity().getLayoutInflater();

        View dialog = inflater.inflate(R.layout.month_year_picker, null);
        monthPicker = (NumberPicker) dialog.findViewById(R.id.picker_month);
        yearPicker = (NumberPicker) dialog.findViewById(R.id.picker_year);
        dayPicker = (NumberPicker) dialog.findViewById(R.id.picker_day);

        monthPicker.setMinValue(1);
        monthPicker.setMaxValue(12);


        if(monthVal != -1)// && (monthVal > 0 && monthVal < 13))
            monthPicker.setValue(monthVal);
        else
            monthPicker.setValue(cal.get(Calendar.MONTH) + 1);

        monthPicker.setDisplayedValues(new String[]{"Jan","Feb","Mar","Apr","May","June","July",
                "Aug","Sep","Oct","Nov","Dec"});


        dayPicker.setMinValue(1);
        dayPicker.setMaxValue(daysOfMonth);

        if(dayVal != -1)
            dayPicker.setValue(dayVal);
        else
            dayPicker.setValue(cal.get(Calendar.DAY_OF_MONTH));

        monthPicker.setOnValueChangedListener(new NumberPicker.OnValueChangeListener() {
            @Override
            public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
                switch (newVal){
                    case 1:case 3:case 5:
                    case 7:case 8:case 10:
                    case 12:
                        daysOfMonth = 31;
                        dayPicker.setMaxValue(daysOfMonth);
                        break;
                    case 2:
                        daysOfMonth = 28;
                        dayPicker.setMaxValue(daysOfMonth);
                        break;

                    case 4:case 6:
                    case 9:case 11:
                        daysOfMonth = 30;
                        dayPicker.setMaxValue(daysOfMonth);
                        break;
                }

            }
        });

        int maxYear = cal.get(Calendar.YEAR);//2016
        final int minYear = 1916;//1997;
        int arraySize = maxYear - minYear;

        String[] tempArray = new String[arraySize];
        tempArray[0] = "---";
        int tempYear = minYear+1;

        for(int i=0 ; i < arraySize; i++){
            if(i != 0){
                tempArray[i] = " " + tempYear + "";
            }
            tempYear++;
        }
        Log.i("", "onCreateDialog: " + tempArray.length);
        yearPicker.setMinValue(minYear+1);
        yearPicker.setMaxValue(maxYear);
        yearPicker.setDisplayedValues(tempArray);

        if(yearVal != -1)
            yearPicker.setValue(yearVal);
        else
            yearPicker.setValue(tempYear -1);

        yearPicker.setOnValueChangedListener(new NumberPicker.OnValueChangeListener() {
            @Override
            public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
                try {
                    if(isLeapYear(picker.getValue())){
                        daysOfMonth = 29;
                        dayPicker.setMaxValue(daysOfMonth);
                    }
                }catch (Exception e){
                    e.printStackTrace();
                }
            }
        });


        builder.setView(dialog)
                // Add action buttons
                .setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int id) {
                        int year = yearPicker.getValue();
                        if(year == (minYear+1)){
                            year = 1904;
                        }
                        listener.onDateSet(null, year, monthPicker.getValue(), dayPicker.getValue());
                    }
                })
                .setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int id) {
                        MonthYearPickerDialog.this.getDialog().cancel();
                    }
                });

        return builder.create();
    }

    public static boolean isLeapYear(int year) {
        Calendar cal = Calendar.getInstance();
        cal.set(Calendar.YEAR, year);
        return cal.getActualMaximum(Calendar.DAY_OF_YEAR) > 365;
    }
}

And I call it like

Calendar calendar = Calendar.getInstance();

        if(etBirthday.getText().length()> 0  ){
            if(checkIsYearAvailable(etBirthday.getText().toString().trim()))
                calendar = DateTimeOp.getCalendarFromFormat(etBirthday.getText().toString().trim(), Constants.dateFormat21);
            else
                calendar = DateTimeOp.getCalendarFromFormat(etBirthday.getText().toString().trim() + ", 1917",Constants.dateFormat21);
        }

        MonthYearPickerDialog pd = MonthYearPickerDialog.newInstance(calendar.get(Calendar.MONTH) + 1,
                calendar.get(Calendar.DAY_OF_MONTH),calendar.get(Calendar.YEAR));

        pd.setListener(new DatePickerDialog.OnDateSetListener() {
            @Override
            public void onDateSet(DatePicker view, int selectedYear, int selectedMonth, int selectedDay) {

                String formatedDate = "";

                if(selectedYear == 1904)
                {
                    String currentDateFormat = selectedMonth + "/" + selectedDay;// + "/" + selectedYear;  //"MM/dd/yyyy"
                    formatedDate = DateTimeOp.oneFormatToAnother(currentDateFormat, Constants.dateFormat20, Constants.dateFormat24);
                }
                else{
                    String currentDateFormat = selectedMonth + "/" + selectedDay + "/" + selectedYear;  //"MM/dd/yyyy"
                    formatedDate = DateTimeOp.oneFormatToAnother(currentDateFormat, Constants.dateFormat0, Constants.dateFormat21);
                }

                etBirthday.setText(formatedDate);
            }
        });
        pd.show(getFragmentManager(), "MonthYearPickerDialog");

month_year_picker.xml

<?xml version="1.0" encoding="utf-8"?>
    <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">



    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:orientation="horizontal">

        <NumberPicker
            android:id="@+id/picker_month"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginEnd="20dp"
            android:layout_marginRight="20dp" />


        <NumberPicker
            android:id="@+id/picker_day"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginEnd="20dp"
            android:layout_marginRight="20dp" />

        <NumberPicker
            android:id="@+id/picker_year"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />

    </LinearLayout>
</LinearLayout>
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混吃等死
5楼-- · 2019-01-04 02:44

This Works for me fine :

DatePickerDialog monthDatePickerDialog = new DatePickerDialog(activity, 
AlertDialog.THEME_HOLO_LIGHT, new DatePickerDialog.OnDateSetListener() {
        @Override
        public void onDateSet(DatePicker view, int year, int month, int dayOfMonth) {
            monthTextView.setText(year + "/" + (month + 1));
        }
    }, yearNow, monthNow, dayNow){
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            getDatePicker().findViewById(getResources().getIdentifier("day","id","android")).setVisibility(View.GONE);
        }
    };
    monthDatePickerDialog.setTitle("select_month");
    monthDatePickerDialog.show();
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Evening l夕情丶
6楼-- · 2019-01-04 02:45

This is an old question, but now you can just use "BetterPickers":

https://github.com/code-troopers/android-betterpickers

And use ExpirationPicker.

Hope this solves it for some other lost souls who searched Google far and wide.

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地球回转人心会变
7楼-- · 2019-01-04 02:48

As i recently stumbled across this problem myself, i tested multiple solutions from this post and similar questions on Stackoverflow.

Unfortunately i found no working solution especially for Android 5+

I ended up with implementing my own simple DialogFragment embedding two NumberPickers. This should be compatible with all versions from 3.0 and upwards.

Here is the code:

  public class MonthYearPickerDialog extends DialogFragment {

  private static final int MAX_YEAR = 2099;
  private DatePickerDialog.OnDateSetListener listener;

  public void setListener(DatePickerDialog.OnDateSetListener listener) {
    this.listener = listener;
  }

  @Override
  public Dialog onCreateDialog(Bundle savedInstanceState) {
    AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
    // Get the layout inflater
    LayoutInflater inflater = getActivity().getLayoutInflater();

    Calendar cal = Calendar.getInstance();

    View dialog = inflater.inflate(R.layout.date_picker_dialog, null);
    final NumberPicker monthPicker = (NumberPicker) dialog.findViewById(R.id.picker_month);
    final NumberPicker yearPicker = (NumberPicker) dialog.findViewById(R.id.picker_year);

    monthPicker.setMinValue(1);
    monthPicker.setMaxValue(12);
    monthPicker.setValue(cal.get(Calendar.MONTH) + 1);

    int year = cal.get(Calendar.YEAR);
    yearPicker.setMinValue(year);
    yearPicker.setMaxValue(MAX_YEAR);
    yearPicker.setValue(year);

    builder.setView(dialog)
        // Add action buttons
        .setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() {
          @Override
          public void onClick(DialogInterface dialog, int id) {
            listener.onDateSet(null, yearPicker.getValue(), monthPicker.getValue(), 0);
          }
        })
        .setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
          public void onClick(DialogInterface dialog, int id) {
            MonthYearPickerDialog.this.getDialog().cancel();
          }
        });
    return builder.create();
  }
}

And the layout

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
              android:layout_width="fill_parent"
              android:layout_height="fill_parent"
              android:orientation="vertical">

    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:orientation="horizontal">

        <NumberPicker
            android:id="@+id/picker_month"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginEnd="20dp"
            android:layout_marginRight="20dp">

        </NumberPicker>

        <NumberPicker
            android:id="@+id/picker_year"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content">

        </NumberPicker>

    </LinearLayout>
</LinearLayout>

To show the layout use:

MonthYearPickerDialog pd = new MonthYearPickerDialog();
pd.setListener(this);
pd.show(getFragmentManager(), "MonthYearPickerDialog");
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