如何保存列表视图消息适配器状态

Question

我想保存列表视图消息适配器状态以强制更改方向。例如，用户可以在更改此设备的方向后看到他最后看到的一条消息，为此我尝试了onsaveinstance，但是我认为这对消息adpater无效，这是我的代码。

   private ListView messageListView;
    private MessageAdapter messageAdapter;

public static String LIST_INSTANCE_STATE = "State" ;

   public void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        outState.putParcelable(LIST_INSTANCE_STATE, messageListView.onSaveInstanceState());}

    @Override
    protected void onRestoreInstanceState(Bundle savedInstanceState) {
        super.onRestoreInstanceState(savedInstanceState);
        messageListView.onRestoreInstanceState(state);

    }