Question

我有一个片段，可以使用Volley从我的服务器获取学生词汇表的列表。单词列表显示在RecyclerView中，顶部带有FAB。如何连接我的FAB，以便在按下时，CardView将显示为在RecylerView上弹出。这样做的目的是使用CardView作为表单与另一个脚本进行通信，该脚本允许用户输入要添加到列表中的单词。当在CardView上单击该按钮时，它应该运行POST脚本并消失。这在单个片段中是否可行？

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.words_ui, container, false);
    ButterKnife.bind(this, view);
    wordRecyclerView = (RecyclerView) view.findViewById(R.id.wordsRecyclerView);
    wordRecyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
    wordRecyclerView.addItemDecoration(new VerticalSpaceItemDecoration(VERTICAL_ITEM_SPACE));
    mWordAdapter = new WordAdapter(getActivity());
    wordRecyclerView.setAdapter(mWordAdapter);
    TextView clientTextView = (TextView) view.findViewById(R.id.clientText);
    Bundle args = getActivity().getIntent().getExtras();
    final String username = args.getString("USER_NAME");
    clientTextView.setText("Word List For: " + username);

    FloatingActionButton wordButton = (FloatingActionButton) view.findViewById(R.id.wordFloatingButton);
    wordButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Toast.makeText(getActivity(), "Button was clicked", Toast.LENGTH_LONG).show();
        }
    });
    sendRequest();
    return view;
  }


 private void sendRequest() {

    Bundle args = getActivity().getIntent().getExtras();
    final String username = args.getString("USER_NAME");
    final String URL = JSON_URL + username;
    JsonObjectRequest request = new JsonObjectRequest(Request.Method.GET, URL, null, new Response.Listener<JSONObject>() {


        @Override
        public void onResponse(JSONObject response) {
            mWordArrayList = parseJSONResponse(response);
            mWordAdapter.setWordArrayList(mWordArrayList);
        }
    }, new Response.ErrorListener() {
        @Override
        public void onErrorResponse(VolleyError error) {

        }
    });

    RequestQueue requestQueue = Volley.newRequestQueue(getActivity());
    requestQueue.add(request);
}


public ArrayList<Word> parseJSONResponse(JSONObject response) {
    ArrayList<Word> mWordArrayList = new ArrayList<Word>();
    if (response == null || response.length() == 0) {

    }
    try {
        JSONArray jsonArray = response.getJSONArray(JSON_ARRAY);
        for (int i = 0; i < jsonArray.length(); i++) {
            JSONObject usersWords = jsonArray.getJSONObject(i);
            String words = usersWords.getString(KEY_WORD);
            String addbys = usersWords.getString(KEY_ADDBY);
            Word word = new Word(words, addbys);
            word.setWord(words);
            word.setAddby("Added by: " + addbys);
            mWordArrayList.add(word);
        }

    } catch (JSONException e) {
        e.printStackTrace();
    }
    return mWordArrayList;
}

Answer 1

我想我可能找到了一个临时解决方案。我很想知道是否有人可以实施上述内容或告诉我更好的方法。

我最终做的只是创建一个新的Activity AddWord.class并从onClickListener调用它。然后我创建一个视图和这样的自定义主题......

<style name="AppTheme.CustomTheme">
    <item name="android:windowIsTranslucent">true</item>
    <item name="android:windowCloseOnTouchOutside">true</item>
</style>

单击FAB时，视图会在RecyclerView顶部弹出，后者仍然可见。用户可以填写表单并将单词添加到列表中，然后返回RecyclerView。

不确定这是多么昂贵，所以如果有人有更好的选择让我知道！

触摸FAB时如何呈现CardView

1 个答案: