Question

当用户点击DialogFragment

时，我正在使用DatePicker来显示EditText

如何在同一EditText中显示所选日期。

我使用this作为参考。

DatePickerFragment.java：

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);
    }

    @Override
    public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
        Calendar c = Calendar.getInstance();
        c.set(year, monthOfYear, dayOfMonth);

        SimpleDateFormat sdf = new SimpleDateFormat("dd MMMM yyyy");
        String formattedDate = sdf.format(c.getTime());
        Toast.makeText(getActivity(), formattedDate, Toast.LENGTH_LONG).show();
    }

}

片段：

editDate.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                android.support.v4.app.DialogFragment dialogFragment = new DatePickerFragment();
                dialogFragment.show(getFragmentManager(), "datePicker");
            }
        });

当我点按EditText时，它会在 DatePicker 中显示Toast和所选日期。但我无法弄清楚如何在EditText？

中显示该日期

Answer 1

你可以这样做 -

EditText edttxt_date = (EditText) findViewById(R.id.date);
edttxt_date.setText(formattedDate);
Toast.makeText(getBaseContext(), formattedDate, Toast.LENGTH_SHORT).show();

或您也可以使用日历和 DatePickerDialogFragment 来显示类似这样的时间并将相应的值返回到您的片段。

DateFormat dateFormat = DateFormat.getDateInstance();
edttxt_date.setText(dateFormat.format(cal.getTime()));

希望它有所帮助!!

Answer 2

只需替换它：

Toast.makeText(getActivity(), formattedDate, Toast.LENGTH_LONG).show();

行或输入此行以在 EditText：

中显示日期

EditText date=(EditText)find(...);
date.setText(formattedDate);

Answer 3

在MainFragment类中添加DatePickerFragment类。调用public void onDateSet（）后，调用同一个类中的方法来更新editText字段。

public MainFragment extents Fragment{

        .....
         updateDateField(String formattedDate){
              editDate.setText(formattedDate);
         }

        public class DatePickerFragment extends DialogFragment
                   implements DatePickerDialog.OnDateSetListener {
....
           @Override
          public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
                 Calendar c = Calendar.getInstance();
                 c.set(year, monthOfYear, dayOfMonth);

                 SimpleDateFormat sdf = new SimpleDateFormat("dd MMMM yyyy");
                                String formattedDate = sdf.format(c.getTime());
                                updateDateField(formattedDate);
            }
        }
    }

如何使用DialogFragment在EditText中显示选定日期

3 个答案: