Android Open Source - mac-hopper Preference Activity

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License

The source code is released under:

MIT License

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Java Source Code

package uk.co.danhawkes.machopper.ui.preferences;
/*  ww w.  j  a v a  2  s . c om*/
import uk.co.danhawkes.machopper.AppSingleton;
import uk.co.danhawkes.machopper.R;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.DialogFragment;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.content.SharedPreferences;
import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
import android.os.Bundle;
import android.os.Process;

public class PreferenceActivity extends Activity {

  private boolean originalThemeSetting;
  private boolean newThemeSetting;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    UiUtils.setThemeFromPreferences(this);

    this.originalThemeSetting = AppSingleton.getPreferences().getBoolean(
        getString(R.string.pref_key_theme_light), false);

    getFragmentManager().beginTransaction()
        .add(android.R.id.content, new PreferenceFragment(), null).commit();
    AppSingleton.getPreferences().registerOnSharedPreferenceChangeListener(
        onSharedPreferencesChangeListener);
  }

  @Override
  public void onBackPressed() {
    if (newThemeSetting != originalThemeSetting) {
      new ApplyThemeDialogFragment().show(getFragmentManager(), null);
    } else {
      super.onBackPressed();
    }
  }

  public static class ApplyThemeDialogFragment extends DialogFragment {

    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
      AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
      builder.setTitle(getString(R.string.preference_theme_dialog_title));
      builder.setMessage(getString(R.string.preference_theme_dialog_message));
      builder.setPositiveButton(android.R.string.ok, new OnClickListener() {

        @Override
        public void onClick(DialogInterface dialog, int which) {
          Process.killProcess(Process.myPid());
        }
      });
      builder.setNegativeButton(android.R.string.cancel, null);
      return builder.create();
    }
  }

  @Override
  protected void onPause() {
    // TODO Auto-generated method stub
    super.onPause();
  }

  @Override
  protected void onDestroy() {
    super.onDestroy();
    AppSingleton.getPreferences().unregisterOnSharedPreferenceChangeListener(
        onSharedPreferencesChangeListener);
  }

  private OnSharedPreferenceChangeListener onSharedPreferencesChangeListener = new OnSharedPreferenceChangeListener() {

    @Override
    public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
      if (key.equals(getString(R.string.pref_key_rotate_interval))) {
        AppSingleton.getAlarmUtils().rescheduleAlarmFromPreferences(sharedPreferences);
      } else if (key.equals(getString(R.string.pref_key_rotate_enabled))) {
        if (sharedPreferences
            .getBoolean(getString(R.string.pref_key_rotate_enabled), false)) {
          AppSingleton.getAlarmUtils().rescheduleAlarmFromPreferences(sharedPreferences);
        } else {
          AppSingleton.getAlarmUtils().cancelAlarm();
        }
      } else if (key.equals(getString(R.string.pref_key_theme_light))) {
        newThemeSetting = sharedPreferences.getBoolean(
            getString(R.string.pref_key_theme_light), false);
      }
    }
  };
}

Java Source Code List