Settings.java

package com.jobmineplus.mobile.activities.jbmnpls;

import com.jobmineplus.mobile.R;

import android.app.Activity;
import android.os.Bundle;
import android.preference.PreferenceActivity;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.app.AppCompatDelegate;
import android.view.MenuItem;

public class Settings extends PreferenceActivity {
    private AppCompatDelegate mDelegate;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        getDelegate().installViewFactory();
        getDelegate().onCreate(savedInstanceState);
        getDelegate().getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        getDelegate().getSupportActionBar().setTitle("Settings");
        addPreferencesFromResource(R.xml.settings);
    }
    private AppCompatDelegate getDelegate() {
        if (mDelegate == null) {
            mDelegate = AppCompatDelegate.create(this, null);
        }
        return mDelegate;
    }
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
        case android.R.id.home:
            finish();
            break;
        }
        return true;
    }
}