onSaveInstanceState与onRestoreInstanceState不工作。 每当我按下后退按钮或从应用程序出来时，自定义回收视图的数据是不可见的，直到上传下一个文件。 当我上传时，所有的数据都会返回，因为我已经将其存储在共享首选项中。

OnCreate:

 if (savedInstanceState != null) {
            // Restore value of members from saved state
            savedInstanceState.get(String.valueOf(savedInstanceState));
        }
        else
        {
            //initialize members with default values for a new instance
            setContentView(R.layout.activity_resource);
        }

    @Override
    public void onSaveInstanceState(Bundle outState) {


        super.onSaveInstanceState(outState);
    }

    @Override
    public void onRestoreInstanceState(@Nullable Bundle savedInstanceState, @Nullable PersistableBundle persistentState) {
        super.onRestoreInstanceState(savedInstanceState, persistentState);
    }