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RecyclerViewを使用して一部のデータをフェッチすることになっているFragmentがあります。新しいデータがあるかどうかチェックできるようにスワイプリフレッシュジェスチャをフラグメントに追加します。 ここに私のコードです：SwipeRefreshLyoutが正しく機能していない
フラグメント：
public class HomeFragment extends Fragment implements SwipeRefreshLayout.OnRefreshListener{
public HomeFragment() {
// Required empty public constructor
}
RecyclerView recyclerView;
SwipeRefreshLayout swipeRefreshLayout;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_home, container, false);
swipeRefreshLayout=(SwipeRefreshLayout) view.findViewById(R.id.swipeRefreshLayout);
recyclerView = (RecyclerView) view.findViewById(R.id.recylerview);
ReadRss readRss = new ReadRss(getContext(), recyclerView);
readRss.execute();
return view;
}
@Override
public void onRefresh() {
new ReadRss(getContext(), recyclerView).execute();
if(swipeRefreshLayout.isRefreshing())swipeRefreshLayout.setRefreshing(false);
}
}
XMLレイアウト：
<android.support.v4.widget.SwipeRefreshLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="https://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/swipeRefreshLayout"
app:layout_behavior="@string/appbar_scrolling_view_behavior"
tools:context="com.example.essat.essat.HomeFragment"
>
<!-- TODO: Update blank fragment layout -->
<android.support.v7.widget.RecyclerView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/recylerview"
/>
>
</android.support.v4.widget.SwipeRefreshLayout>
問題は、SwipeRefreshLayoutコードのこの作品でも、旋回を停止することはありません：
if(swipeRefreshLayout.isRefreshing())swipeRefreshLayout.setRefreshing(false);
私は誰かがこれを修正する方法を知っていることを願って、ありがとう：
UPDATE：更新
public class ReadRss extends AsyncTask<Void, Void, Void> {
Context context;
String address = "http://www.sciencemag.org/rss/news_current.xml";
ProgressDialog progressDialog;
URL url;
ArrayList<FeedItem>feedItems;
RecyclerView recyclerView;
public ReadRss(Context context,RecyclerView recyclerView ) {
this.recyclerView=recyclerView;
this.context = context;
progressDialog = new ProgressDialog(context);
progressDialog.setMessage("Loading...");
}
@Override
protected void onPreExecute() {
progressDialog.show();
super.onPreExecute();
}
@Override
protected void onPostExecute(Void aVoid) {
super.onPostExecute(aVoid);
progressDialog.dismiss();
((IWithHttpRequest) context).onDataUpdate();
Adapter adapter = new Adapter(context, feedItems);
recyclerView.setLayoutManager(new LinearLayoutManager(context));
recyclerView.addItemDecoration(new VerticalSpace(20));
recyclerView.setAdapter(adapter);
}
@Override
protected Void doInBackground(Void... params) {
ProcessXml(Getdata());
return null;
}
private void ProcessXml(Document data) {
if (data != null) {
feedItems=new ArrayList<>();
Element root = data.getDocumentElement();
Node channel = root.getChildNodes().item(1);
NodeList items = channel.getChildNodes();
for (int i = 0; i < items.getLength(); i++) {
Node cureentchild = items.item(i);
if (cureentchild.getNodeName().equalsIgnoreCase("item")) {
FeedItem item=new FeedItem();
NodeList itemchilds = cureentchild.getChildNodes();
for (int j = 0; j < itemchilds.getLength(); j++) {
Node cureent = itemchilds.item(j);
if (cureent.getNodeName().equalsIgnoreCase("title")){
item.setTitle(cureent.getTextContent());
}else if (cureent.getNodeName().equalsIgnoreCase("description")){
item.setDescription(cureent.getTextContent());
}else if (cureent.getNodeName().equalsIgnoreCase("pubDate")){
item.setPubDate(cureent.getTextContent());
}else if (cureent.getNodeName().equalsIgnoreCase("link")){
item.setLink(cureent.getTextContent());
}else if (cureent.getNodeName().equalsIgnoreCase("media:thumbnail")) {
String url = cureent.getAttributes().item(0).getTextContent();
item.setThumbnailUrl(url);
}
}
feedItems.add(item);
}
}
}
}
public Document Getdata() {
try {
url = new URL(address);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
InputStream inputStream = connection.getInputStream();
DocumentBuilderFactory builderFactory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = builderFactory.newDocumentBuilder();
Document xmlDoc = builder.parse(inputStream);
return xmlDoc;
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
}
フラグメント：
public class HomeFragment extends Fragment implements SwipeRefreshLayout.OnRefreshListener,IWithHttpRequest{
public HomeFragment() {
// Required empty public constructor
}
RecyclerView recyclerView;
SwipeRefreshLayout swipeRefreshLayout;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_home, container, false);
swipeRefreshLayout=(SwipeRefreshLayout) view.findViewById(R.id.swipeRefreshLayout);
swipeRefreshLayout.setOnRefreshListener(this);
recyclerView = (RecyclerView) view.findViewById(R.id.recylerview);
ReadRss readRss = new ReadRss(getContext(), recyclerView);
readRss.execute();
return view;
}
@Override
public void onRefresh() {
new ReadRss(getContext(), recyclerView).execute();
}
@Override
public void onDataUpdate() {
swipeRefreshLayout.setRefreshing(false);
}
}
swipeRefreshLayout.setOnRefreshListener（this）; とonPostExecuteのコール swipeRefreshLayout.setRefreshing（false）; – Rahul