在android中退出活动后，如何保留我的列表视图？

@Override
protected void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);
    outState.putParcelableArrayList("list", myList);
}

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    if (savedInstanceState != null) {
        myList = savedInstanceState.getParcelableArrayList("list");
    }

    // 继续处理列表视图的其他逻辑
}