android-dialog - ShowDIalog() 中的 DatePickerDialog 已弃用

Question

我有下一个代码:

dateDisplay1.setOnClickListener(new OnClickListener() {
@SuppressWarnings("deprecation")
    public void onClick(View v) {
        option = 1;
        showDialog(DATE_DIALOG_ID);
    }
});

还有 onCreateDialog 函数:

protected Dialog onCreateDialog(int id) {

    Calendar cal = Calendar.getInstance();

    switch (id) {
    case DATE_DIALOG_ID:
        return new DatePickerDialog(this, dayDate, cal.get(Calendar.YEAR),      cal.get(Calendar.MONTH), cal.get(Calendar.DAY_OF_MONTH));
    case TIME_DIALOG_ID:
        return new TimePickerDialog(this, timeDate, cal.get(Calendar.HOUR_OF_DAY), cal.get(Calendar.MINUTE), false);
    }
    return null;
}

我想做的是将已弃用的 showDialog() 改编为 DialogFragment，但没有成功。下面的代码有效，但不是最佳实践。所以我想更正代码。

您将如何实现？

Answer 1

public class ReminderEditActivity extends Activity {
    private Button mDateButton;
    private Button mTimeButton;
    public Calendar mCalendar;
    private static final String DATE_FORMAT = "yyyy-MM-dd";
    private static final String TIME_FORMAT = "kk:mm";
    DialogFragment dateFragment;
    DialogFragment timeFragment;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.reminder_edit);
        mTimeButton = (Button) findViewById(R.id.reminder_time);
        mDateButton = (Button) findViewById(R.id.reminder_date);
        mCalendar = Calendar.getInstance();
        mDateButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                showDatePickerDialog(v);
            }
            });
        mTimeButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                showTimePickerDialog(v);
            }
            });

    }

    public void showDatePickerDialog(View v) {
        dateFragment = new DatePickerFragment();
        dateFragment.show(getFragmentManager(), "datePicker");

    }

    public void showTimePickerDialog(View v) {
        timeFragment = new TimePickerFragment();
        timeFragment.show(getFragmentManager(), "timePicker");
    }

    public void updateDateButtonText() {
        SimpleDateFormat dateFormat = new SimpleDateFormat(DATE_FORMAT);
        String dateForButton = dateFormat.format(mCalendar.getTime());
        mDateButton.setText(dateForButton);
    }
    private void updateTimeButtonText() {
        SimpleDateFormat timeFormat = new SimpleDateFormat(TIME_FORMAT);
        String timeForButton = timeFormat.format(mCalendar.getTime());
        mTimeButton.setText(timeForButton);
        }

    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) {
            mCalendar.set(Calendar.YEAR, year);
            mCalendar.set(Calendar.MONTH, month);
            mCalendar.set(Calendar.DAY_OF_MONTH, day);
            updateDateButtonText();
        }
    }

    public class TimePickerFragment extends DialogFragment implements
            TimePickerDialog.OnTimeSetListener {

        @Override
        public Dialog onCreateDialog(Bundle savedInstanceState) {
            // Use the current time as the default values for the picker
            final Calendar c = Calendar.getInstance();
            int hour = c.get(Calendar.HOUR_OF_DAY);
            int minute = c.get(Calendar.MINUTE);

            // Create a new instance of TimePickerDialog and return it
            return new TimePickerDialog(getActivity(), this, hour, minute,
                    DateFormat.is24HourFormat(getActivity()));
        }

        public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
            mCalendar.set(Calendar.HOUR_OF_DAY, hourOfDay);
            mCalendar.set(Calendar.MINUTE, minute);
            updateTimeButtonText();
        }
    }

}