DateTimePicker android

2019-08-24 07:33:11 阅读：183 来源： 互联网

标签：datetimepicker android android-fragments datepicker

我正在创建一个DateTime Picker,以便在我在datePicker片段上选择日期并从拾取器中获取Calendar对象后立即获取timePicker片段.

DatePicker片段

public class DatePickerFragment extends DialogFragment implements DatePickerDialog.OnDateSetListener
{

    @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) {

    }

}

TimePicker片段

public class TimePickerFragment extends DialogFragment implements TimePickerDialog.OnTimeSetListener
{
    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState)
    {
        final Calendar c=Calendar.getInstance();
        int hour=c.get(Calendar.HOUR_OF_DAY);
        int minute=c.get(Calendar.MINUTE);
        return new TimePickerDialog(getActivity(),this,hour,minute, DateFormat.is24HourFormat(getActivity()));
    }

    @Override
    public void onTimeSet(TimePicker view, int hourOfDay, int minute) {

    }
}

如何连接这些片段以显示彼此之后如何从两个片段获取数据后如何获取单个Calendar对象？

解决方法:

试试这个：

MainActivity.java

public class MainActivity extends AppCompatActivity implements
        DatePickerFragment.DatePickerListener, TimePickerFragment.TimePickerListener
{
    private Calendar calendar;
    FragmentManager fm;

    @Override
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        calendar = Calendar.getInstance();

        fm = getSupportFragmentManager();
        DatePickerFragment dateDialog = new DatePickerFragment();
        dateDialog.show(fm, "fragment_date");
    }

    @Override
    public void onDateSet(int year, int month, int day)
    {
        // Set selected year, month and day in calendar object
        calendar.set(year, month, day);

        // Start Time dialog
        TimePickerFragment timeDialog = new TimePickerFragment();
        timeDialog.show(fm, "fragment_time");

    }

    @Override
    public void onTimeSet(int hourOfDay, int minute)
    {
        calendar.set(Calendar.HOUR_OF_DAY, hourOfDay);
        calendar.set(Calendar.MINUTE, minute);

        // Here, your calendar object is ready.
    }
}

DatePickerFragment.java

public class DatePickerFragment extends DialogFragment implements DatePickerDialog.OnDateSetListener
{
    public interface DatePickerListener
    {
        public void onDateSet(int year, int month, int day);
    }

    private DatePickerListener listener;

    @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);
    }

    @Override
    public void onAttach(Activity activity)
    {
        super.onAttach(activity);

        // This makes sure that the container activity has implemented
        // the callback interface. If not, it throws an exception
        try {
            listener = (DatePickerListener) activity;
        } catch (ClassCastException e) {
            throw new ClassCastException(activity.toString()
                    + " must implement OnHeadlineSelectedListener");
        }
    }

    public void onDateSet(DatePicker view, int year, int month, int day)
    {
        listener.onDateSet(year, month, day);
    }
}

TimePickerFragment.java

public class TimePickerFragment extends DialogFragment implements TimePickerDialog.OnTimeSetListener
{
    public interface TimePickerListener
    {
        public void onTimeSet(int hourOfDay, int minute);
    }

    private TimePickerListener listener;

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState)
    {
        final Calendar c=Calendar.getInstance();
        int hour=c.get(Calendar.HOUR_OF_DAY);
        int minute=c.get(Calendar.MINUTE);
        return new TimePickerDialog(getActivity(),this,hour,minute, DateFormat.is24HourFormat(getActivity()));
    }

    @Override
    public void onAttach(Activity activity)
    {
        super.onAttach(activity);

        // This makes sure that the container activity has implemented
        // the callback interface. If not, it throws an exception
        try {
            listener = (TimePickerListener) activity;
        } catch (ClassCastException e) {
            throw new ClassCastException(activity.toString()
                    + " must implement OnHeadlineSelectedListener");
        }
    }

    @Override
    public void onTimeSet(TimePicker view, int hourOfDay, int minute)
    {
        listener.onTimeSet(hourOfDay, minute);
    }
}

希望这能解决你的问题.

标签：datetimepicker,android,android-fragments,datepicker
来源： https://codeday.me/bug/20190824/1705903.html

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DateTimePicker android