Android Open Source - SpartanTimeLapseRecorder Date Time Preference

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From Project

Back to project page SpartanTimeLapseRecorder.

License

The source code is released under:

GNU General Public License

Java Source Code

/*
 * Spartan Time Lapse Recorder - Minimalistic android time lapse recording app
 * Copyright (C) 2014  Andreas Rohner//www  .  j a  v  a2  s .c  om
 *
 * This program 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.
 *
 * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package at.andreasrohner.spartantimelapserec.preference;

import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;

import android.annotation.SuppressLint;
import android.content.Context;
import android.content.res.TypedArray;
import android.os.Build;
import android.preference.DialogPreference;
import android.util.AttributeSet;
import android.view.View;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.CompoundButton.OnCheckedChangeListener;
import android.widget.DatePicker;
import android.widget.TimePicker;
import at.andreasrohner.spartantimelapserec.R;

public class DateTimePreference extends DialogPreference implements
    OnCheckedChangeListener {
  Calendar mCal;
  boolean mEnabled;
  DatePicker mDatePicker;
  TimePicker mTimePicker;

  @SuppressLint("NewApi")
  public DateTimePreference(Context context, AttributeSet attrs) {
    super(context, attrs);

    mCal = Calendar.getInstance();

    setWidgetLayoutResource(R.layout.dialog_date_widget_preference);
    setDialogLayoutResource(R.layout.dialog_date_preference);
  }

  public long getTimeInMillis() {
    if (mDatePicker != null && mTimePicker != null)
      mCal.set(mDatePicker.getYear(), mDatePicker.getMonth(),
          mDatePicker.getDayOfMonth(), mTimePicker.getCurrentHour(),
          mTimePicker.getCurrentMinute());

    if (mCal.getTimeInMillis() < System.currentTimeMillis())
      mCal.setTimeInMillis(System.currentTimeMillis());

    mCal.set(Calendar.SECOND, 0);

    return mCal.getTimeInMillis();
  }

  public static long parseTime(String value) {
    long time = System.currentTimeMillis();
    try {
      long temp;
      if (value != null) {
        String[] parts = value.split("\\|");
        if (parts.length == 2) {
          temp = Long.valueOf(parts[1]);
          if (temp > time)
            time = temp;
        }
      }
    } catch (NumberFormatException e) {
    }

    return time;
  }

  public static boolean parseEnabled(String value) {
    if (value != null && value.charAt(0) == '1')
      return true;

    return false;
  }

  public String formatDateTime() {
    DateFormat f = SimpleDateFormat.getDateTimeInstance(
        SimpleDateFormat.MEDIUM, SimpleDateFormat.SHORT);
    String enabled = getContext().getString(R.string.pref_date_time_enabled);
    String disabled = getContext().getString(R.string.pref_date_time_disabled);

    return f.format(mCal.getTime()) + " ("
        + (mEnabled ? enabled : disabled) + ")";
  }

  private void parseValue(String value) {
    mCal.setTimeInMillis(parseTime(value));
    mCal.set(Calendar.SECOND, 0);
    mEnabled = parseEnabled(value);
  }

  private String createValue() {
    String time = (mEnabled ? "1|" : "0|");
    time += String.valueOf(getTimeInMillis());

    return time;
  }

  @Override
  protected void onBindView(View view) {
    super.onBindView(view);

    CheckBox checkBox = (CheckBox) view
        .findViewById(R.id.dialog_date_preference_enabled);
    checkBox.setChecked(mEnabled);
    checkBox.setOnCheckedChangeListener(this);
  }

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

    parseValue(getPersistedString(null));

    mDatePicker = (DatePicker) v.findViewById(R.id.dialog_date_preference_date);
    mTimePicker = (TimePicker) v.findViewById(R.id.dialog_date_preference_time);

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
      mDatePicker.setCalendarViewShown(false);
      mDatePicker.setMinDate(System.currentTimeMillis() - 1000);
    }

    mDatePicker.updateDate(mCal.get(Calendar.YEAR),
        mCal.get(Calendar.MONTH), mCal.get(Calendar.DAY_OF_MONTH));

    mTimePicker.setIs24HourView(true);
    mTimePicker.setCurrentHour(mCal.get(Calendar.HOUR_OF_DAY));
    mTimePicker.setCurrentMinute(mCal.get(Calendar.MINUTE));
  }

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

    if (positiveResult) {
      String time = createValue();

      if (callChangeListener(time)) {
        persistString(time);
      }
    }
  }

  @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) {
      time = getPersistedString((String) defaultValue);
    } else {
      time = (String) defaultValue;
    }

    parseValue(time);
  }

  @Override
  public void onCheckedChanged(CompoundButton check, boolean value) {
    String persisted = getPersistedString(null);
    parseValue(persisted);

    mEnabled = value;

    String created = createValue();

    if (!persisted.equals(created)) {
      persistString(created);
    }
  }
}

Java Source Code List

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