material-dialogs/sample/src/main/java/com/afollestad/materialdialogssample/PreferenceActivity.java

package com.afollestad.materialdialogssample;

import android.annotation.SuppressLint;
import android.os.Bundle;
import android.preference.PreferenceFragment;
import android.support.v7.app.AppCompatActivity;
import android.view.MenuItem;

@SuppressLint("NewApi")
public class PreferenceActivity extends AppCompatActivity {

    public static class SettingsFragment extends PreferenceFragment {
        @Override
        public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            addPreferencesFromResource(R.xml.preferences);
        }
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.preference_activity_custom);
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        getFragmentManager().beginTransaction().replace(R.id.content_frame, new SettingsFragment()).commit();
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        if (item.getItemId() == android.R.id.home) {
            onBackPressed();
            return true;
        }
        return super.onOptionsItemSelected(item);
    }
}