Android Open Source - screen-notifications Time Preference

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License

The source code is released under:

GNU General Public License

Java Source Code

/*
 * Copyright 2012 Luke Korth <korth.luke@gmail.com>
 * //from  w  w  w.j  a  va  2 s. co m
 * This file is part of Screen Notifications.
 * 
 * Screen Notifications is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * Screen Notifications is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with Screen Notifications.  If not, see <http://www.gnu.org/licenses/>.
*/

package com.lukekorth.screennotifications;

import android.content.Context;
import android.content.res.TypedArray;
import android.preference.DialogPreference;
import android.text.format.DateFormat;
import android.util.AttributeSet;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
import android.widget.TimePicker;

public class TimePreference extends DialogPreference {

    protected int lastHour = 0;
    protected int lastMinute = 0;
    protected boolean is24HourFormat;
    protected TimePicker picker = null;
    protected TextView timeDisplay;

    public TimePreference(Context ctxt) {
        this(ctxt, null);
    }

    public TimePreference(Context ctxt, AttributeSet attrs) {
        this(ctxt, attrs, 0);
    }

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

        is24HourFormat = DateFormat.is24HourFormat(ctxt);
        setPositiveButtonText(R.string.set);
        setNegativeButtonText(R.string.cancel);
    }

    @Override
    public String toString() {
        if (is24HourFormat) {
            return ((lastHour < 10) ? "0" : "")
                    + Integer.toString(lastHour)
                    + ":" + ((lastMinute < 10) ? "0" : "")
                    + Integer.toString(lastMinute);
        } else {
            int myHour = lastHour % 12;
            return ((myHour == 0) ? "12" : ((myHour < 10) ? "0" : "") + Integer.toString(myHour))
                    + ":" + ((lastMinute < 10) ? "0" : "")
                    + Integer.toString(lastMinute)
                    + ((lastHour >= 12) ? " PM" : " AM");
        }
    }

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

    @Override
    protected void onBindDialogView(View v) {
        super.onBindDialogView(v);
        picker.setIs24HourView(is24HourFormat);
        picker.setCurrentHour(lastHour);
        picker.setCurrentMinute(lastMinute);
    }

    @Override
    public void onBindView(View view) {
        View widgetLayout;
        int childCounter = 0;
        do {
            widgetLayout = ((ViewGroup) view).getChildAt(childCounter);
            childCounter++;
        } while (widgetLayout.getId() != android.R.id.widget_frame);
        ((ViewGroup) widgetLayout).removeAllViews();
        timeDisplay = new TextView(widgetLayout.getContext());
        timeDisplay.setText(toString());
        ((ViewGroup) widgetLayout).addView(timeDisplay);
        super.onBindView(view);
    }

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

        if (positiveResult) {
            picker.clearFocus();
            lastHour = picker.getCurrentHour();
            lastMinute = picker.getCurrentMinute();

            String time = String.valueOf(lastHour) + ":" + String.valueOf(lastMinute);

            if (callChangeListener(time)) {
                persistString(time);
                timeDisplay.setText(toString());
            }
        }
    }

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

    @Override
    protected void onSetInitialValue(boolean restoreValue, Object defaultValue) {
        String time = null;

        if (restoreValue) {
            if (defaultValue == null) {
                time = getPersistedString("00:00");
            } else {
                time = getPersistedString(defaultValue.toString());
            }
        } else {
            if (defaultValue == null) {
                time = "00:00";
            } else {
                time = defaultValue.toString();
            }
            if (shouldPersist()) {
                persistString(time);
            }
        }

        String[] timeParts = time.split(":");
        lastHour = Integer.parseInt(timeParts[0]);
        lastMinute = Integer.parseInt(timeParts[1]);
    }
}

Java Source Code List

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