Android 공유 환경 설정을 사용하여 활동 배경색 저장

내 앱에서 대화 상자를 사용하여 활동 배경색을 변경할 수 있습니다.

휴대폰에서 앱을 다시 시작할 때 배경색이 변경된 상태로 유지되도록 공유 기본 설정을 사용하려고합니다.

코드가 작동하도록 변경하려면 어떻게해야합니까?

내 코드는 다음과 같습니다.

public class HomeActivity extends Activity {



    SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(this);


    int storedPreference = preferences.getInt("storedInt", 0);
    @Override
    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_home);               

        if (preferences.getString("clicked", "yes").equals("nope")){
            // it never been clicked
        }else{
            // it has been clicked before do whatever you want with the background
        }

    }

    private static void setButtonPref(Context ctx, String clicked)
    {
        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(ctx);
        SharedPreferences.Editor editor = prefs.edit();
        editor.putString("clicked", clicked);
        editor.commit();
    }


    public void showThemes (){
        ListView listView = new ListView(this);
        listView.setAdapter(new ArrayAdapter<String>(this, R.layout.theme_list, new String[]{"Green", "Pink", "Orange", "Blue"}));
        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            // arg0 is your adapter, arg1 is the view clicked, arg2 is the position and arg3 is the id.
            public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
                switch(arg2){
                    case(0):
                        View someView = findViewById(R.id.mainLayout);
                        View root = someView.getRootView();
                        root.setBackgroundColor(0xFF00FF00);
                        setButtonPref(context, "yes");

                        /*Window window = this.getWindow();
                        window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
                        window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
                        window.setStatusBarColor(0xFF00FF00);*/


                        break;
                    case(1):
                        Toast.makeText(getApplicationContext(), "Coming soon!", Toast.LENGTH_SHORT).show();

                        break;

                    case(2):
                        Toast.makeText(getApplicationContext(), "Coming soon!", Toast.LENGTH_SHORT).show();
                        break;

                    case(3):
                        Toast.makeText(getApplicationContext(), "Coming soon!", Toast.LENGTH_SHORT).show();
                        break;

                    default:
                        break;
                }
            }
        });
        Dialog dialog = new Dialog(this);
        dialog.setTitle("Themes");
        dialog.setContentView(listView);
        dialog.show();

    }