TimePreference.java

//This class  based on tutorial found here https://github.com/commonsguy/cw-lunchlist/blob/master/19-Alarm/LunchList/src/apt/tutorial/TimePreference.java
package com.liato.bankdroid;

import android.content.Context;
import android.content.res.TypedArray;
import android.preference.DialogPreference;
import android.util.AttributeSet;
import android.view.View;
import android.widget.TimePicker;

import timber.log.Timber;

public class TimePreference extends DialogPreference {

    private int lastValue = 0;

    private TimePicker picker = null;

    public TimePreference(Context ctxt, AttributeSet attrs) {
        super(ctxt, attrs);

        setPositiveButtonText("Set");
        setNegativeButtonText("Cancel");
    }

    @Override
    protected View onCreateDialogView() {
        picker = new TimePicker(getContext());
        picker.setIs24HourView(true);
        return picker;
    }

    @Override
    protected void onBindDialogView(View v) {
        super.onBindDialogView(v);

        picker.setCurrentHour(lastValue / 60);
        picker.setCurrentMinute(lastValue % 60);
    }

    @Override
    protected void onDialogClosed(boolean positiveResult) {
        super.onDialogClosed(positiveResult);

        if (positiveResult) {
            lastValue = picker.getCurrentHour() * 60 + picker.getCurrentMinute();

            if (callChangeListener(lastValue)) {
                persistInt(lastValue);
            }
        }
    }

    @Override
    protected Object onGetDefaultValue(TypedArray a, int index) {
        return (a.getInt(index, 0));
    }

    @Override
    protected void onSetInitialValue(boolean restoreValue, Object defaultValue) {
        int val = 0;

        if (restoreValue) {
            val = getPersistedInt(val);
        } else {
            try {
                val = Integer.parseInt(defaultValue.toString());
            } catch (NumberFormatException e) {
                Timber.e(e, "TimePreference's defaultValue is not a number");
            }
        }

        lastValue = val;
    }
}