Android Open Source - nextgislogger Preferences Activity

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License

The source code is released under:

GNU General Public License

Java Source Code

/******************************************************************************
 * Project: NextGIS Logger//  www.ja v a 2s.c o m
 * Purpose: Productive data logger for Android
 * Authors: Stanislav Petriakov
 ******************************************************************************
 * Copyright  2014 NextGIS
 *
 * 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 2 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 com.nextgis.logger;

import java.io.BufferedReader;
import java.io.File;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.PrintWriter;

import com.nextgis.logger.R;

import android.app.Activity;
import android.content.Context;
import android.hardware.Sensor;
import android.hardware.SensorManager;
import android.os.Bundle;
import android.preference.EditTextPreference;
import android.preference.Preference;
import android.preference.Preference.OnPreferenceChangeListener;
import android.preference.Preference.OnPreferenceClickListener;
import android.preference.PreferenceActivity;
import android.preference.PreferenceFragment;
import android.widget.Toast;

public class PreferencesActivity extends PreferenceActivity {
  public static final int minPeriodSec = 1;
  public static final int maxPeriodSec = 3600;

  @Override
  protected void onCreate(Bundle savedInstance) {
    super.onCreate(savedInstance);
    getFragmentManager().beginTransaction().replace(android.R.id.content, new PreferencesFragment()).commit();
  }

  public static class PreferencesFragment extends PreferenceFragment {
    @SuppressWarnings("deprecation")
    @Override
    public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);

      addPreferencesFromResource(R.xml.preferences);

      final Activity parent = getActivity();

      findPreference(C.PREF_SENSOR_MODE).setSummary(getString(R.string.settings_sensor_mode_sum) + "\r\n" + getString(R.string.settings_sensor_sum));
      
      SensorManager sm = (SensorManager) parent.getSystemService(Context.SENSOR_SERVICE);

      if (sm.getDefaultSensor(Sensor.TYPE_LINEAR_ACCELERATION) == null)
        findPreference(C.PREF_SENSOR_MODE).setEnabled(false);

      if (sm.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD) == null)
        findPreference(C.PREF_SENSOR_MAG).setEnabled(false);

      if (sm.getDefaultSensor(Sensor.TYPE_ORIENTATION) == null)
        findPreference(C.PREF_SENSOR_ORIENT).setEnabled(false);

      if (sm.getDefaultSensor(Sensor.TYPE_GYROSCOPE) == null)
        findPreference(C.PREF_SENSOR_GYRO).setEnabled(false);

      if (android.os.Build.VERSION.SDK_INT < android.os.Build.VERSION_CODES.JELLY_BEAN_MR1)
        findPreference(C.PREF_USE_API17).setEnabled(false);

      EditTextPreference userName = (EditTextPreference) findPreference(C.PREF_USER_NAME);
      userName.setSummary(userName.getText());
      userName.setOnPreferenceChangeListener(new OnPreferenceChangeListener() {
        @Override
        public boolean onPreferenceChange(Preference preference, Object newValue) {
          preference.setSummary((String) newValue);

          return true;
        }
      });

      IntEditTextPreference periodPreference = (IntEditTextPreference) findPreference(C.PREF_PERIOD_SEC);
      periodPreference.setSummary(getString(R.string.settings_period_sum) + periodPreference.getPersistedString("1"));
      periodPreference.setOnPreferenceChangeListener(new OnPreferenceChangeListener() {
        @Override
        public boolean onPreferenceChange(Preference preference, Object newValue) {
          int period;

          try {
            period = Integer.parseInt((String) newValue);
            boolean max = period > maxPeriodSec;
            boolean min = period < minPeriodSec;

            if (max)
              period = maxPeriodSec;

            if (min)
              period = minPeriodSec;

            ((IntEditTextPreference) preference).persistString(Integer.toString(period));
            preference.setSummary(getString(R.string.settings_period_sum) + period);

            if (min || max)
              throw new IllegalArgumentException();
          } catch (Exception e) {
            Toast.makeText(parent, R.string.settings_period_toast, Toast.LENGTH_LONG).show();
          }

          return false;
        }
      });

      Preference catPathPreference = findPreference(C.PREF_CAT_PATH);

      catPathPreference.setOnPreferenceClickListener(new OnPreferenceClickListener() {
        @Override
        public boolean onPreferenceClick(final Preference preference) {
          SimpleFileChooser FileOpenDialog = new SimpleFileChooser();
                    FileOpenDialog.setOnFileChosen(new SimpleFileChooser.SimpleFileChooserListener() {
                        @Override
                        public void onFileChosen(File file) {
                            // The code in this function will be executed when the dialog OK button is pushed
                            String info = getString(R.string.error_no_file);

//                            if (new File(chosenDir).isFile()) {
                            if (file.isFile()) {
                                File fromCats = file;//new File(chosenDir);

                                String internalPath = parent.getFilesDir().getAbsolutePath();
                                File toCats = new File(internalPath + "/" + C.categoriesFile);

                                try {
                                    PrintWriter pw = new PrintWriter(new FileOutputStream(toCats, false));
                                    BufferedReader in = new BufferedReader(new FileReader(fromCats));

                                    String[] split;
                                    String line;

                                    while ((line = in.readLine()) != null) {
                                        split = line.split(",");

                                        if (split.length != 2) {
                                            in.close();
                                            pw.close();
                                            throw new ArrayIndexOutOfBoundsException("Must be two columns splitted by ','!");
                                        } else
                                            pw.println(line);
                                    }

                                    in.close();
                                    pw.close();

                                    info = getString(R.string.file_loaded) + file.getAbsolutePath();
                                } catch (IOException e) {
                                    info = getString(R.string.fs_error_msg);
                                } catch (ArrayIndexOutOfBoundsException e) {
                                    info = getString(R.string.cat_file_structure_error);
                                }
                            }

                            Toast.makeText(parent, info, Toast.LENGTH_SHORT).show();
                        }
                    });

          FileOpenDialog.show(getFragmentManager(), "FileOpenDialog");

          return true;
        }
      });
    }
  }
}

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