弹出对话框时如何禁用方向更改？

Question

只需使用DatePicker对话框，当您在弹出对话框中更改方向时，它将给您一个错误。如何禁用方向更改？

public class DatePickerFragment extends DialogFragment implements DatePickerDialog.OnDateSetListener {

    private Task mTask;
    private static final String DIALOG_DATE = "Date";
    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        // Use the current date as the default date in the picker
        int year;
        int month;
        int day;

        final Calendar c = Calendar.getInstance();
        year = c.get(Calendar.YEAR);
        month = c.get(Calendar.MONTH);
        day = c.get(Calendar.DAY_OF_MONTH);



        return new DatePickerDialog(getActivity(), this, year, month, day);
    }

Answer 1

覆盖DialogFramgent中的show（），并在调用它时禁用Activity的方向。让你的DilagFragment实现DismissListener，当调用onDismiss时，重新启用方向

@Override
public void show(FragmentManager fm, String tag) {
 getActivity().setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
 super.show(fm, tag);
}