Persist multiple values from a DialogPreference

Question

I am having difficulty persisting multiple values from a dialog preference. I have a DialogPreference which shows two time pickers, and I would like the time values from each picker persisted (shown below as startTime and endTime). However, my code is returning only the DefValue from my DialogPreference, and I do not understand why these values are not persisting....Thanks for your help. Code is below:

public class TimePickerPreference extends DialogPreference implements
    TimePicker.OnTimeChangedListener {
private String startTime;
private String endTime;


private String defaultValue;
public TimePickerPreference(Context context, AttributeSet attrs) {
    super(context, attrs);
    initialize();
}

public TimePickerPreference(Context context, AttributeSet attrs,
        int defStyle) {
    super(context, attrs, defStyle);
    initialize();
}

private void initialize() {
    setPersistent(true);
}

@Override
protected View onCreateDialogView() {

    LinearLayout layout = new LinearLayout(getContext());
   layout.setOrientation(LinearLayout.VERTICAL);
    TextView tvStart = new TextView(getContext());
    TimePicker tp = new TimePicker(getContext());
    TextView tvEnd = new TextView(getContext());
    TimePicker tp2 = new TimePicker(getContext());

    tvStart.setText("From:");
    tvEnd.setText("To:");
    tvStart.setTextSize(14);
    tvEnd.setTextSize(14);

    tp.setOnTimeChangedListener(this);

    int h = getHour();
    int m = getMinute();
    if (h >= 0 && m >= 0) {
        tp.setCurrentHour(h);
        tp.setCurrentMinute(m);
    }

    tp.setOnTimeChangedListener(new TimePicker.OnTimeChangedListener() {

        @Override
        public void onTimeChanged(TimePicker view, int hourOfDay, int minute) {
            // TODO Auto-generated method stub
            final long starttime = (minute * 60 + hourOfDay * 60 * 60) * 1000;
            SimpleDateFormat format = new SimpleDateFormat("HH:mm:ss");
            startTime = format.format(starttime);
            persistString(startTime);

        }
    });
    tp2.setOnTimeChangedListener(new TimePicker.OnTimeChangedListener() {

        @Override
        public void onTimeChanged(TimePicker view, int hourOfDay, int minute) {
            // TODO Auto-generated method stub
            final long endtime = (minute * 60 + hourOfDay * 60 * 60) * 1000;
            SimpleDateFormat format = new SimpleDateFormat("HH:mm:ss");
            endTime = format.format(endtime);
            persistString(endTime);
        }
    });
    layout.addView(tvStart);
    layout.addView(tp);
    layout.addView(tvEnd);
    layout.addView(tp2);
    return layout;
}

score 1 · Answer 1 · edited May 23 '17 at 10:24

1

The best answer to your question is here: Concise way of writing new DialogPreference classes?

I think there are 2 important bugs here based on that link, first the setPersistent(boolean) should be false, and second is that you need to use getEditor() to store multiple SharedPreferences in the DialogPreference.

edited May 23 '17 at 10:24

Community

1
1

answered Sep 06 '12 at 17:29

Andy

455
6
12

Persist multiple values from a DialogPreference

1 Answers1