SettingsFragment.java

package com.markzhai.lyrichere.ui;

import android.content.SharedPreferences;
import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
import android.os.Bundle;
import android.preference.PreferenceFragment;
import android.preference.PreferenceManager;

import com.markzhai.lyrichere.R;

public class SettingsFragment extends PreferenceFragment implements OnSharedPreferenceChangeListener {
    private SharedPreferences prefs;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        addPreferencesFromResource(R.xml.preference);
    }

    @Override
    public void onStart() {
        super.onStart();
        prefs = PreferenceManager.getDefaultSharedPreferences(getActivity());
        prefs.registerOnSharedPreferenceChangeListener(this);
    }

    /**
     * Called when a shared preference is changed, added, or removed. This
     * may be called even if a preference is set to its existing value.
     * <p/>
     * <p>This callback will be run on your main thread.
     *
     * @param sharedPreferences The {@link android.content.SharedPreferences} that received
     *                          the change.
     * @param key               The key of the preference that was changed, added, or
     */
    @Override
    public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {

    }
}