SystemUI : Add DemoModeActivity hook for settings

            android:label="@string/lockscreen_targets_message"

            android:theme="@android:style/Theme.Material.Settings"

            android:process=":cmsettings"

            android:exported="true">

        </activity>

            android:exported="true" />

        <activity android:name=".tuner.TunerActivity$DemoModeActivity"

          android:icon="@drawable/tuner"

          android:theme="@android:style/Theme.Material.Settings"

          android:label="@string/demo_mode"

          android:process=":tuner"

          android:exported="true"

          android:permission="android.permission.STATUS_BAR" />

    </application>

</manifest>

package com.android.systemui.tuner;

import android.app.Activity;

import android.app.Fragment;

import android.os.Bundle;

import android.view.MenuItem;

public class TunerActivity extends Activity {

                .commit();

    }

    /**

     * Base class for direct entry points into

     * tuner fragments

     */

    private static abstract class FragmentTunerActivityBase extends Activity {

        @Override

        protected void onCreate(Bundle savedInstanceState) {

            super.onCreate(savedInstanceState);

            getActionBar().setDisplayHomeAsUpEnabled(true);

            getFragmentManager().beginTransaction().replace(android.R.id.content,

                    getFragment()).commit();

        }

        protected abstract Fragment getFragment();

        @Override

        public final boolean onOptionsItemSelected(MenuItem item) {

            switch (item.getItemId()) {

                case android.R.id.home:

                    finish();

                    return true;

            }

            return super.onOptionsItemSelected(item);

        }

    }

    public static final class DemoModeActivity extends FragmentTunerActivityBase {

        @Override

        protected Fragment getFragment() {

            return new DemoModeFragment();

        }

    }

}