Android Open Source - Fon Advanced Preferences

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License

The source code is released under:
GNU General Public License
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Java Source Code

package org.rsalvaterra.fon.activity;
/* w  w w . ja  v a 2s .  c om*/
import org.rsalvaterra.fon.Actions;
import org.rsalvaterra.fon.IntentHandlingService;
import org.rsalvaterra.fon.R;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.media.Ringtone;
import android.media.RingtoneManager;
import android.net.Uri;
import android.os.Bundle;
import android.preference.Preference;
import android.preference.PreferenceActivity;
import android.preference.PreferenceManager;
import android.preference.PreferenceScreen;
import android.view.Menu;
import android.view.MenuItem;

public final class AdvancedPreferences extends PreferenceActivity {

  private static final int BASIC_ID = Menu.FIRST;

  private static final Preference.OnPreferenceChangeListener CHECKBOX_LISTENER = new Preference.OnPreferenceChangeListener() {

    @Override
    public final boolean onPreferenceChange(final Preference p, final Object v) {
      if (((Boolean) v).booleanValue()) {
        final Context context = p.getContext();
        context.startService(new Intent(context, IntentHandlingService.class).setAction(String.valueOf(Actions.ACTION_SCAN)));
      }
      return true;
    }
  };

  private static final Preference.OnPreferenceChangeListener EDIT_TEXT_LISTENER = new Preference.OnPreferenceChangeListener() {

    @Override
    public final boolean onPreferenceChange(final Preference p, final Object v) {
      p.setSummary(p.getContext().getString(R.string.intervalSummary, v));
      return true;
    }
  };

  private static final Preference.OnPreferenceChangeListener RINGTONE_LISTENER = new Preference.OnPreferenceChangeListener() {

    @Override
    public final boolean onPreferenceChange(final Preference p, final Object v) {
      final String t = v.toString();
      final String s;
      if (t.length() == 0) {
        s = "";
      } else {
        final Ringtone r = RingtoneManager.getRingtone(p.getContext(), Uri.parse(t));
        if (r == null) {
          s = null;
        } else {
          s = r.getTitle(p.getContext());
        }
      }
      p.setSummary(s);
      return true;
    }
  };

  private static void bindCheckBoxListener(final Preference p) {
    p.setOnPreferenceChangeListener(AdvancedPreferences.CHECKBOX_LISTENER);
  }

  private static void bindEditTextListener(final Preference p) {
    p.setOnPreferenceChangeListener(AdvancedPreferences.EDIT_TEXT_LISTENER);
    AdvancedPreferences.EDIT_TEXT_LISTENER.onPreferenceChange(p, PreferenceManager.getDefaultSharedPreferences(p.getContext()).getString(p.getKey(), "300"));
  }

  private static void bindRingtoneListener(final Preference p) {
    p.setOnPreferenceChangeListener(AdvancedPreferences.RINGTONE_LISTENER);
    AdvancedPreferences.RINGTONE_LISTENER.onPreferenceChange(p, PreferenceManager.getDefaultSharedPreferences(p.getContext()).getString(p.getKey(), ""));
  }

  @Override
  public void onCreate(final Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    addPreferencesFromResource(R.layout.preferences_advanced);
    final PreferenceScreen preferenceScreen = getPreferenceScreen();
    AdvancedPreferences.bindCheckBoxListener(preferenceScreen.findPreference(getString(R.string.key_reconnect)));
    AdvancedPreferences.bindEditTextListener(preferenceScreen.findPreference(getString(R.string.key_interval)));
    AdvancedPreferences.bindRingtoneListener(preferenceScreen.findPreference(getString(R.string.key_success)));
    AdvancedPreferences.bindRingtoneListener(preferenceScreen.findPreference(getString(R.string.key_failure)));
  }

  @Override
  public boolean onCreateOptionsMenu(final Menu menu) {
    menu.add(Menu.NONE, AdvancedPreferences.BASIC_ID, Menu.NONE, R.string.basic).setIcon(android.R.drawable.ic_menu_revert);
    return super.onCreateOptionsMenu(menu);
  }

  @Override
  public boolean onOptionsItemSelected(final MenuItem item) {
    switch (item.getItemId()) {
      case BASIC_ID:
        setResult(Activity.RESULT_OK);
        finish();
        break;
      default:
        return super.onOptionsItemSelected(item);
    }
    return true;
  }

}
Java Source Code List
