Сохранение цвета Layout при повороте экрана (ПОРТРЕТ->ЛАНДШАФТ) - Программирование Android - Ответ 4880782

@Override
    protected void onSaveInstanceState(Bundle savedInstanceState) {     
        super.onSaveInstanceState(savedInstanceState);
        savedInstanceState.putInt("color", ((ColorDrawable)linerlayout.getBackground()).getColor());
    }
    @Override
    protected void onRestoreInstanceState(Bundle savedInstanceState){
        super.onRestoreInstanceState(savedInstanceState);
        linerlayout.setBackgroundColor(savedInstanceState.getInt("color"));

public int getBgColor (LinearLayout linerlayout){
        ColorDrawable colorDrawable=((ColorDrawable) linerlayout.getBackground());
        Bitmap bitmap= Bitmap.createBitmap(1, 1, Config.ARGB_4444);
        Canvas canvas= new Canvas(bitmap);
        colorDrawable.draw(canvas);   
        int color = bitmap.getPixel(0, 0);  
        return color;

public LinearLayout linerlayout;
public Button btn;
 @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        linerlayout = (LinearLayout)findViewById(R.id.linerlayout);
        btn = (Button)findViewById(R.id.btnSetColor);
        
    }
public void btnSetColor_Click(View v){
        int color = getBgColor(linerlayout);
        btn.setTextColor(color);
    }

 @Override
    protected void onSaveInstanceState(Bundle savedInstanceState) {     
        super.onSaveInstanceState(savedInstanceState);
        int color = getBgColor(linerlayout);
        savedInstanceState.putInt("color", color);       
        savedInstanceState.putString("text",tvInfo.getText().toString());
    }
    @Override
    protected void onRestoreInstanceState(Bundle savedInstanceState){
        super.onRestoreInstanceState(savedInstanceState);
        linerlayout.setBackgroundColor(savedInstanceState.getInt("color"));
        tvInfo.setText(savedInstanceState.getString("text"));
    }