我尝试发送一个截击请求以填充recyclerviews但由于某种原因我可以理解，但是没有填充Recyclerview。数据提取得很好，我可以从logcat中看到。
加载后我只看到一个空白页，空白页和空白页。
这些是我的代码：
示例jsoup
{
"found": 4,
"site_ID": 1,
"comments": [
{
"ID": 26934,
"post": {
"ID": 194784,
"type": "post",
"title": "Lorem Ipsum is simply dummy text",
},
"author": {
"email": false,
"avatar_URL": "http://1.gravatar.com/avatar/af61ad05da322fccae2bd02f7062e357?s=96&d=wavatar&r=g",
},
"date": "2016-05-28T02:54:35+01:00",
"content": "<p>It is a long established fact that a reader will be distracted by the readable content of a page when looking at its layout</p>\n",
"status": "approved",
},
{
"ID": 26934,
"post": {
"ID": 194784,
"type": "post",
"title": "Contrary to popular belief, Lorem Ipsum",
},
"author": {
"email": false,
"avatar_URL": "http://1.gravatar.com/avatar/af61ad05da322fccae2bd02f7062e357?s=96&d=wavatar&r=g",
},
"date": "2016-05-28T02:54:35+01:00",
"content": "<p>Richard McClintock, a Latin professor at Hampden-Sydney College in Virginia</p>\n",
"status": "approved",
},
{
"ID": 26934,
"post": {
"ID": 194784,
"type": "post",
"title": "Lorem Ipsum is simply dummy text",
},
"author": {
"email": false,
"avatar_URL": "http://1.gravatar.com/avatar/af61ad05da322fccae2bd02f7062e357?s=96&d=wavatar&r=g",
},
"date": "2016-05-28T02:54:35+01:00",
"content": "<p>It is a long established fact that a reader will be distracted by the readable content of a page when looking at its layout</p>\n",
"status": "approved",
},
{
"ID": 26934,
"post": {
"ID": 194784,
"type": "post",
"title": "Lorem ipsum dolor sit amet, consectetur adipiscing elit",
},
"author": {
"email": false,
"avatar_URL": "http://1.gravatar.com/avatar/af61ad05da322fccae2bd02f7062e357?s=96&d=wavatar&r=g",
},
"date": "2016-05-28T02:54:35+01:00",
"content": "<p>Sed ut porttitor nunc. Cras scelerisque lobortis diam, nec placerat lacus aliquam eu. Ut a eros non libero porta commodo. Nulla odio lectus, vestibulum ut ultrices eget</p>\n",
"status": "approved",
},
]
}
CommentItem
public class CommentItem {
private String comt_name;
private String comt_if_auth;
private String comt_cont;
private String comt_timest;
public String getComt_imageUrl() {
return comt_image_url;
}
public void setComt_imageUrl(String comt_image) {
this.comt_image_url = comt_image;
}
public String getComt_name() {
return comt_name;
}
public void setComt_name(String comt_name) {
this.comt_name = comt_name;
}
public String getComt_if_auth() {
return comt_if_auth;
}
public void setComt_if_auth(String comt_if_auth) {
this.comt_if_auth = comt_if_auth;
}
public String getComt_cont() {
return comt_cont;
}
public void setComt_cont(String comt_cont) {
this.comt_cont = comt_cont;
}
public String getComt_timest() {
return comt_timest;
}
public void setComt_timest(String comt_timest) {
this.comt_timest = comt_timest;
}
}
CommentFragment
public class CommentFragment extends Fragment {
private final String TAG = "CommentFragment";
private ProgressBar mProgressBar;
private TextView comtHeader;
//Creating a list of comments
private List<CommentItem> mCommentItems;
//Creating views
RecyclerView mRecyclerView;
private RecyclerView.Adapter mAdapter;
LinearLayoutManager mLayoutManager;
private String comtUrl;
public CommentFragment() {
// Required empty public constructor
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
Log.d(TAG, "onCreate View called");
comtUrl = getArguments().getString("commentUrl");
Log.d(TAG, comtUrl);
// Inflate the layout for this fragment
View view = inflater.inflate(R.layout.fragment_comment, container, false);
mRecyclerView = (RecyclerView) view.findViewById(R.id.comment_recyclerm);
mProgressBar = (ProgressBar) view.findViewById(R.id.comt_prog);
comtHeader = (TextView) view.findViewById(R.id.comt_head);
mLayoutManager = new LinearLayoutManager(getActivity());
mRecyclerView.setLayoutManager(mLayoutManager);
loadComment();
mCommentItems = new ArrayList<>();
mRecyclerView.setAdapter(mAdapter);
mAdapter = new CommentAdapter(mCommentItems, getActivity());
return view;
}
private void loadComment() {
Log.d(TAG, "loadComment called");
mProgressBar.setVisibility(View.VISIBLE);
JsonObjectRequest comments = new JsonObjectRequest(comtUrl, null,
new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
Log.d(TAG, "onResponse for loadComment called");
parseComment(response);
if (mProgressBar != null) {
mProgressBar.setVisibility(View.GONE);
}
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
if (mProgressBar != null) {
mProgressBar.setVisibility(View.GONE);
}
}
});
int socketTimeOut = 10000;
RetryPolicy policy = new DefaultRetryPolicy(socketTimeOut, DefaultRetryPolicy.DEFAULT_MAX_RETRIES, DefaultRetryPolicy.DEFAULT_BACKOFF_MULT);
comments.setRetryPolicy(policy);
RequestQueue requestQueue = Volley.newRequestQueue(getActivity());
requestQueue.add(comments);
}
public void parseComment(JSONObject object) {
Log.d(TAG, "Parsing comments");
try {
String found = object.getString("found");
if (found.equals("1")) {
comtHeader.setText(getString(R.string.comment, found));
} else {
comtHeader.setText(getString(R.string.comments, found));
}
JSONArray commentArray = object.getJSONArray("comments");
for(int i = 0; i<commentArray.length(); i++) {
CommentItem commentItem = new CommentItem();
JSONObject jsonObject;
try {
jsonObject = commentArray.getJSONObject(i);
JSONObject author = jsonObject.getJSONObject("author");
String name = author.getString("name");
commentItem.setComt_name(name);
commentItem.setComt_imageUrl(author.getString("avatar_URL"));
SimpleDateFormat formatDate = new SimpleDateFormat("dd MMM, yy", Locale.getDefault());
SimpleDateFormat formatTime = new SimpleDateFormat("HH:mm", Locale.getDefault());
SimpleDateFormat inputFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss");
String inputDateStr = jsonObject.getString("date");
Log.d(TAG, "comment date is " + inputDateStr);
try {
Date inputDate = inputFormat.parse(inputDateStr);
String commDateStr = formatDate.format(inputDate);
String commTime = formatTime.format(inputDate);
commentItem.setComt_timest(String.format(getResources().getString(R.string.com_time_stamp), commDateStr, commTime));
} catch (ParseException e) {
Log.d(TAG, "Error in Parsing date");
}
String content = jsonObject.getString("content");
commentItem.setComt_cont(content);
mCommentItems.add(commentItem);
} catch (JSONException w) {
w.printStackTrace();
}
}
} catch (JSONException e) {
e.printStackTrace();
comtHeader.setText(R.string.comment_no);
}
mAdapter.notifyItemRangeChanged(0, mAdapter.getItemCount());
}
}
CommentAdapter
public class CommentAdapter extends RecyclerView.Adapter<CommentAdapter.ViewHolder> {
private ImageLoader mImageLoader;
private Context sContext;
//List of comments
@Override
public CommentAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View v = LayoutInflater.from(parent.getContext())
.inflate(R.layout.comment_item, parent, false);
ViewHolder viewHolder = new ViewHolder(v);
return viewHolder;
}
@Override
public void onBindViewHolder(ViewHolder holder, int position) {
CommentItem commentItem = mCommentItems.get(position);
mImageLoader = VolleyRequest.getInstance(sContext).getImageLoader();
mImageLoader.get(commentItem.getComt_imageUrl(), ImageLoader.getImageListener(holder.mImageView, R.drawable.comt_image, R.drawable.comt_name_error));
holder.mImageView.setImageUrl(commentItem.getComt_imageUrl(), mImageLoader);
holder.comtName.setText(commentItem.getComt_name());
holder.comtContent.setText(commentItem.getComt_cont());
holder.comtTimeStamp.setText(commentItem.getComt_timest());
}
public class ViewHolder extends RecyclerView.ViewHolder {
public CircularNetworkImageView mImageView;
public TextView comtName;
public TextView comtContent;
public TextView comtTimeStamp;
public ViewHolder(View view) {
super(view);
mImageView = (CircularNetworkImageView) view.findViewById(R.id.comt_img);
comtName = (TextView) view.findViewById(R.id.comt_name);
comtContent = (TextView) view.findViewById(R.id.comt_content);
comtTimeStamp = (TextView) view.findViewById(R.id.comt_timestamp);
}
}
private List<CommentItem> mCommentItems;
public CommentAdapter(List<CommentItem> commentItems, Context context) {
super();
//Getting all comments
this.mCommentItems = commentItems;
this.sContext = context;
}
@Override
public int getItemCount() {
return mCommentItems.size();
}
}
comment_item
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:id="@+id/comt_item_recy"
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.Abdullq.commenter.CircularNetworkImageView
android:layout_width="40dp"
android:layout_height="40dp"
android.alignParentLeft="true"
android:id="@+id/comt_img"
android.scaleType="centerCrop"
android:background="@drawable/round_button"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/comt_name"
android:layout_toRightOf="@+id/comt_img"
android:textStyle="bold"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/comt_content"
android:layout_below="@+id/comt_name"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/comt_timestamp"
android:textStyle="italic"
android:layout_below="@+id/comt_content"/>
</RelativeLayout>
frament_comment
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:id="@+id/comment_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:id="@+id/comt_head"/>
<ProgressBar
style="?android:attr/progressBarStyleSmall"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/comt_prog"
android:indeterminate="true"/>
<android.support.v7.widget.RecyclerView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/comment_recyclerm"/>
</LinearLayout>
最令人困惑的是，mProgressBar和comtHeader正在显示为什么是recyclerview，也不显示提取的项目。
拜托，你能告诉我哪里弄错了吗？
答案 0 :(得分：1)
可能在这里：
<div class='row'>
<a href="/posts/3"><img id="imagen3" src="/system/posts/images/000/000/003/original/frankie-mannings-102nd-birthday-5160522641047552-hp.gif?1464448829" alt="Frankie mannings 102nd birthday 5160522641047552 hp" /></a>
<p>caption</p>
</div>
在第一行之前移动第二行:) 在第二行mAdapter之后是新对象，所以附加到recyclerview一个指向旧的。