片段的的onSaveInstanceState（）不会被调用 [英] Fragment's onSaveInstanceState() is never called

问题描述

我想将数据保存在一个片段的的onSaveInstanceState（），但是该方法不会被调用。

有人能帮助？

 公共类MyFragment扩展片段{

    @覆盖
    公共查看onCreateView（LayoutInflater充气，容器的ViewGroup，捆绑savedInstanceState）{
        滚动型的含量=（滚动型）inflater.inflate（R.layout.content，集装箱，假）;
        //更多的东西
        返回的内容;
    }

    @覆盖
    公共无效的onSaveInstanceState（包冰柱）{
        //从不叫
        super.onSaveInstanceState（冰柱）;
        //更多的东西
    }

}
 

解决方案

我终于想通了这个问题，至少在我的情况。我在我的FragmentActivity被覆盖的onSaveInstanceState 那不叫 super.onSaveInstanceState（包outState）。有一次，我补充说，在中， Fragment.onSaveInstanceState（包outState）功能正常。

I'm trying to save data in a Fragment's onSaveInstanceState(), but the method is never called.

Can someone help?

public class MyFragment extends Fragment {

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        ScrollView content = (ScrollView) inflater.inflate(R.layout.content, container, false);
        // More stuff
        return content;
    }

    @Override
    public void onSaveInstanceState(Bundle icicle) {
        // NEVER CALLED
        super.onSaveInstanceState(icicle);
        //More stuff
    }

}

解决方案

I finally figured out the problem, at least in my case. I had an overridden onSaveInstanceState in my FragmentActivity that did not call super.onSaveInstanceState(Bundle outState). Once I added that in, the Fragment.onSaveInstanceState(Bundle outState) functioned normally.

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