Android Open Source - Self-Hosted-GPS-Tracker Self Hosted G P S Tracker Prefs

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License

The source code is released under:

GNU General Public License

Java Source Code

package fr.herverenault.selfhostedgpstracker;
/*  w  w w.  j av a2s.  c  o  m*/
import android.content.SharedPreferences;
import android.os.Bundle;
import android.preference.Preference;
import android.preference.Preference.OnPreferenceChangeListener;
import android.preference.PreferenceActivity;
import android.preference.PreferenceManager;
import android.widget.Toast;

import java.util.regex.Pattern;

public class SelfHostedGPSTrackerPrefs extends PreferenceActivity {
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    addPreferencesFromResource(R.xml.preferences);

    Preference pref;
    
    pref = findPreference("pref_gps_updates");
    pref.setOnPreferenceChangeListener(new OnPreferenceChangeListener() {
      @Override
      public boolean onPreferenceChange(Preference preference, Object newValue) {
        SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
        int oldValue = Integer.parseInt(preferences.getString("pref_gps_updates", "0"));
        if (newValue == null 
            || newValue.toString().length() == 0
                        || ! Pattern.matches("^\\d{1,5}$", newValue.toString())) {
                    Toast.makeText(getApplicationContext(), getString(R.string.invalid_number), Toast.LENGTH_SHORT).show();
                    return false;
                }
                else if (Integer.parseInt(newValue.toString()) < 30) { // user has been warned
              Toast.makeText(getApplicationContext(), getString(R.string.pref_gps_updates_too_low), Toast.LENGTH_SHORT).show();
              return false;
        } else if (SelfHostedGPSTrackerService.isRunning
            && Integer.parseInt(newValue.toString()) != oldValue) {
          Toast.makeText(getApplicationContext(), getString(R.string.toast_prefs_restart), Toast.LENGTH_LONG).show();
        }
        return true;
      }
    });
    
    pref = findPreference("pref_max_run_time");
    pref.setOnPreferenceChangeListener(new OnPreferenceChangeListener() {
      @Override
      public boolean onPreferenceChange(Preference preference, Object newValue) { // hours
        SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
        int prefGpsUpdates = Integer.parseInt(preferences.getString("pref_gps_updates", "0")); // seconds
        int oldValue = Integer.parseInt(preferences.getString("pref_max_run_time", "0"));
        if (newValue == null 
            || newValue.toString().length() == 0
                        || ! Pattern.matches("^\\d{1,5}$", newValue.toString())) {
                    Toast.makeText(getApplicationContext(), getString(R.string.invalid_number), Toast.LENGTH_SHORT).show();
                    return false;
                }
                else if (Integer.parseInt(newValue.toString()) * 3600 < prefGpsUpdates) { // would not make sense...
              Toast.makeText(getApplicationContext(), getString(R.string.pref_max_run_time_too_low), Toast.LENGTH_LONG).show();
              return false;
        } else if (SelfHostedGPSTrackerService.isRunning
            && Integer.parseInt(newValue.toString()) != oldValue) {
          Toast.makeText(getApplicationContext(), getString(R.string.toast_prefs_restart), Toast.LENGTH_SHORT).show();
        }
        return true;
      }
    });
  }
}

Java Source Code List

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