TimePicker 和 DatePicker 的基本使用

男娘i 2022-08-05 08:27 175阅读 0赞

TimePicker 和 DatePicker 的基本使用
    
    http://wear.techbrood.com/guide/topics/ui/controls/pickers.html#
    官方讲的挺详细。
    
    1.在xml文件中新建按钮，设置单击事件，以便显示
        <Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:onClick="showTimePicker"
            android:text="showTimePicker" />
    
    
    2.新建类TimePickerFragment并继承DialogFragment， 重写onCreateDialog方法并返回一个TimePickerDialog。
    
    public class TimePickerFragment extends DialogFragment implements TimePickerDialog.OnTimeSetListener {
        @Override
        public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
    
        }
    
        @Override
        public Dialog onCreateDialog(Bundle savedInstanceState) {
    
            final Calendar calendar = Calendar.getInstance();
            int hour = calendar.get(Calendar.HOUR_OF_DAY);
            int minute = calendar.get(Calendar.MINUTE);
    
            return new TimePickerDialog(getActivity(), this, hour, minute, DateFormat.is24HourFormat(getActivity()));
        }
    }
    
    3.在MainActivity中加入按钮的单击事件，并实例化一个timePickerFragment，再显示出来。
    
    public void showTimePicker(View v) {
            DialogFragment timePickerFragment = new TimePickerFragment();
            timePickerFragment.show(getFragmentManager(), "timePicker");
        }
    
    
    
    
    DatePicker与TimePicker基本相同。
        <Button
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:onClick="showDatePicker"
            android:text="showDatePicker" />
    
    public class DatePickerFragment extends DialogFragment implements OnDateSetListener {
        @Override
        public Dialog onCreateDialog(Bundle savedInstanceState) {
            Calendar calendar = Calendar.getInstance();
            int year = calendar.get(Calendar.YEAR);
            int month = calendar.get(Calendar.MONTH);
            int day = calendar.get(Calendar.DAY_OF_MONTH);
    
            return new DatePickerDialog(getActivity(), this, year, month, day);
        }
    
        @Override
        public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
    
        }
    }
    
    public void showDatePicker(View v){
            DialogFragment datePickerFragment = new DatePickerFragment();
            datePickerFragment.show(getFragmentManager(), "datePicker");
        }