Question

我从片段来到活动课，现在我想回到我之前的片段。但片段来自抽屉布局。我无法理解该做什么.... <登记/> 这是我的代码。

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    // Inflate the layout for this fragment
    View view = inflater.inflate(R.layout.fragment_answered, container, false);

    GridView answeredGridView = (GridView) view.findViewById(R.id.answeredQuestiongridview);
    answeredImageAdapter = new AnsweredImageAdapter(getActivity());
    answeredImageAdapter.notifyDataSetChanged();
    answeredGridView.invalidateViews();
    answeredGridView.setAdapter(answeredImageAdapter);
    answeredImageAdapter.notifyDataSetChanged();

    answeredGridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
            Toast.makeText(getActivity()," "+position,Toast.LENGTH_SHORT).show();
            questionposition = position;
            Intent intent = new Intent(getActivity(), AnswerDetailsActivity.class);
            intent.putExtra("Image_position",position);
            intent.putExtra("question_id",id);
            startActivity(intent);
            getActivity().finish();


        }
    });

    return view;
}

现在假设我在此活动页面中。并且想要回到我的片段页面。我写了下面的代码并且不幸地停止面对应用程序。

 private void answerFragment() {
          answeredFragment = new AnsweredFragment();
          fragmentManager = getSupportFragmentManager();
          //answeredFragment = fragmentManager.findFragmentById("myFragment");
          android.support.v4.app.FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
          fragmentTransaction.add(R.id.main_fragment_container,answeredFragment);
          fragmentTransaction.commit();
    }

Answer 1

首先，您所遵循的方法是错误的。碎片与特定活动相关联。从您的代码中可以看出，在您的 XYZActivity 中，您拥有 AnsweredFragment 。点击答案即可 AnswerDetailsActivity 。如果您以相同的方式执行此操作，则只需从此处删除Crypt::PGPSimple来电 -

getActivity().finish();

在这种情况下，在您的返回（硬件/软件）按下，您将能够加载您之前的片段。 :)

如果我来到活动形成片段，如何从活动中分段？

1 个答案: