我怎么能动画回收视图项目时出现?
默认的项目动画器只在设置完回收器数据后添加或删除数据时才会动画。
如何实现这一目标?
我怎么能动画回收视图项目时出现?
默认的项目动画器只在设置完回收器数据后添加或删除数据时才会动画。
如何实现这一目标?
我知道RecyclerView已经取代了旧的ListView和GridView的功能。我正在寻找一个非常基本的例子，显示了一个最小的网格设置使用RecyclerView。我并不是在寻找冗长的教程风格的解释，只是一个简单的例子。我想象最简单的网格，模仿旧的GridView将包括以下功能:
每行多个单元格 每个单元格中的单个视图 响应点击事件
我习惯于在布局文件中放置一个特殊的视图，如ListActivity文档中所述，在没有数据时显示。这个视图的id为“android:id/empty”。
<TextView
android:id="@android:id/empty"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/no_data" />
我想知道这如何能与新的RecyclerView?
我不能在RecyclerView中禁用滚动。我尝试调用rv.setEnabled(false)，但我仍然可以滚动。
我如何禁用滚动?
如何使用GridLayoutManager与RecyclerView设置列间距? 在我的布局中设置空白/填充没有效果。
刚刚在我的代码中实现了RecyclerView，取代了ListView。
一切都很好。显示数据。
但是错误消息正在被记录:
15:25:53.476 E/RecyclerView: No adapter attached; skipping layout
15:25:53.655 E/RecyclerView: No adapter attached; skipping layout
对于以下代码:
ArtistArrayAdapter adapter = new ArtistArrayAdapter(this, artists);
recyclerView = (RecyclerView) findViewById(R.id.cardList);
recyclerView.setHasFixedSize(true);
recyclerView.setAdapter(adapter);
recyclerView.setLayoutManager(new LinearLayoutManager(this));
正如您所看到的，我已经为RecyclerView附加了一个适配器。 为什么我总是得到这个错误呢?
我读过与这个问题相关的其他问题，但没有一个有用。
我需要知道哪些元素目前显示在我的RecyclerView。ListViews上没有与OnScrollListener.onScroll(…)方法等价的方法。我试图与view . getglobalvisibl勃起(…)工作，但黑客是太丑陋，并不总是工作太。
有人有什么想法吗?
我正在寻找一个相当于addHeaderView回收视图。基本上我想有2个按钮的图像被添加到列表视图的标题。有不同的方法来添加一个头视图到回收视图吗?举个例子作为指导会很有帮助
编辑2(增加片段布局):
在添加日志语句之后，getViewType似乎只接收到0的位置。这导致onCreateView只加载一个布局:
10-26 16:32:53.766 5449-5449/co.testapp I/logger info﹕ Adapter-> getItemCount: 5
10-26 16:32:53.766 5449-5449/co.testapp I/logger info﹕ Adapter-> getItemCount: 5
10-26 16:32:53.766 5449-5449/co.testapp I/logger info﹕ Adapter-> getItemCount: 5
10-26 16:32:53.766 5449-5449/co.testapp I/logger info﹕ Adapter-> getItemCount: 5
10-26 16:32:53.766 5449-5449/co.testapp I/logger info﹕ Adapter-> getItemCount: 5
10-26 16:32:53.766 5449-5449/co.testapp I/logger info﹕ Adapter-> getItemCount: 5
10-26 16:32:53.766 5449-5449/co.testapp I/logger info﹕ Adapter-> getItemCount: 5
10-26 16:32:53.766 5449-5449/co.testapp I/logger info﹕ Adapter-> getItemCount: 5
10-26 16:32:53.766 5449-5449/co.testapp I/logger info﹕ Adapter-> getItemCount: 5
10-26 16:32:53.766 5449-5449/co.testapp I/logger info﹕ Adapter-> getItemCount: 5
10-26 16:32:53.766 5449-5449/co.testapp I/logger info﹕ Adapter-> getItemCount: 5
10-26 16:32:53.766 5449-5449/co.testapp I/logger info﹕ Adapter-> getItemViewType position: 0
10-26 16:32:53.766 5449-5449/co.testapp I/logger info﹕ Adapter-> getItemViewType position: 0
10-26 16:32:53.766 5449-5449/co.testapp I/logger info﹕ Adapter-> getItemViewType position: 0
10-26 16:32:53.766 5449-5449/co.testapp I/logger info﹕ Adapter-> onCreateViewHolder, viewtype: 0
10-26 16:32:53.766 5449-5449/co.testapp I/logger info﹕ Adapter-> onBindViewHolder, viewType: 0
片段转换来加载CommentFragment:
@Override
public void onPhotoFeedItemClick(View view, int position) {
if (fragmentManager == null)
fragmentManager = getSupportFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
if (view.getId() == R.id.button_comment){
CommentFragment commentFragment = CommentFragment.newInstance("","", position);
fragmentTransaction.add(R.id.main_activity, commentFragment,"comment_fragment_tag");
fragmentTransaction.addToBackStack(Constants.TAG_COMMENTS);
fragmentTransaction.commit();
}
}
Fragment的onCreateView:
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_comment, container, false);
mRecyclerView = (RecyclerView) view.findViewById(R.id.list_recylclerview);
mRecyclerView.setLayoutManager(new LinearLayoutManager(_context));
mRecyclerView.setItemAnimator(new DefaultItemAnimator());
mAdapter = new CommentAdapter(R.layout.row_list_comments, R.layout.row_header_comments, _context, comments);
mRecyclerView.setAdapter(mAdapter);
return view;
}
包含recycleview的片段:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
tools:context="co.testapp.fragments.CommentFragment"
android:background="@color/white">
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical">
<android.support.v7.widget.RecyclerView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/list_recylclerview"
android:layout_width="match_parent"
android:layout_height="200dp" />
</RelativeLayout>
</RelativeLayout>
注释行布局:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent" android:layout_margin="10dp"
android:background="@color/white">
<!--Profile Picture-->
<ImageView
android:layout_width="80dp"
android:layout_height="80dp"
android:id="@+id/profile_picture"
android:background="@color/blue_testapp"/>
<!--Name-->
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:text="First Name Last Name"
android:textSize="16dp"
android:textColor="@color/blue_testapp"
android:id="@+id/name_of_poster"
android:layout_toRightOf="@id/profile_picture"
/>
<!--Comment-->
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:layout_marginTop="-5dp"
android:text="This is a test comment"
android:textSize="14dp"
android:textColor="@color/black"
android:id="@+id/comment"
android:layout_below="@id/name_of_poster"
android:layout_toRightOf="@id/profile_picture"/>
</RelativeLayout>
头
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:layout_width="wrap_content"
android:layout_height="300dp"
android:id="@+id/header_photo"
android:layout_gravity="center_horizontal"/>
</LinearLayout>
适配器代码(感谢hister让我开始):
public class CommentAdapter extends RecyclerView.Adapter<ViewHolder>{
private final int rowCardLayout;
public static Context mContext;
private final int headerLayout;
private final String [] comments;
private static final int HEADER = 0;
private static final int OTHER = 1;
public CommentAdapter(int rowCardLayout, int headerLayout, Context context, String [] comments) {
this.rowCardLayout = rowCardLayout;
this.mContext = context;
this.comments = comments;
this.headerLayout = headerLayout;
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
logger.i("onCreateViewHolder, viewtype: " + i); //viewtype always returns 0 so OTHER layout is never inflated
if (i == HEADER) {
View v = LayoutInflater.from(viewGroup.getContext()).inflate(headerLayout, viewGroup, false);
return new ViewHolderHeader(v);
}
else if (i == OTHER){
View v = LayoutInflater.from(viewGroup.getContext()).inflate(rowCardLayout, viewGroup, false);
return new ViewHolderComments(v);
}
else
throw new RuntimeException("Could not inflate layout");
}
@Override
public void onBindViewHolder(ViewHolder viewHolder, int i) {
logger.i("onBindViewHolder, viewType: " + i);
if (viewHolder instanceof ViewHolderComments)
((ViewHolderComments) viewHolder).comment.setText(comments[i].toString());
if (viewHolder instanceof ViewHolderHeader)
((ViewHolderHeader) viewHolder).header.setImageResource(R.drawable.image2);
else {
logger.e("no instance of viewholder found");
}
}
@Override
public int getItemCount() {
int count = comments.length + 1;
logger.i("getItemCount: " + count);
return count;
}
@Override
public int getItemViewType(int position) {
logger.i("getItemViewType position: " + position);
if (position == HEADER)
return HEADER;
else
return OTHER;
}
public static class ViewHolderComments extends RecyclerView.ViewHolder {
public TextView comment;
public ImageView image;
public ViewHolderComments(View itemView) {
super(itemView);
comment = (TextView) itemView.findViewById(R.id.comment);
image = (ImageView) itemView.findViewById(R.id.image);
}
}
public static class ViewHolderHeader extends RecyclerView.ViewHolder {
public final ImageView header;
public ViewHolderHeader(View itemView){
super(itemView);
header = (ImageView) itemView.findViewById(R.id.header_photo);
}
}
}
使用上面的代码，只有头部布局显示为viewType总是0。它是这样的。如果我强制另一个布局，它看起来像这样:
我有一个回收视图，在除三星以外的所有设备上都完美地工作。三星(Samsung)是我的首选
java.lang.IndexOutOfBoundsException:检测到不一致。无效的视图持有者适配器positionViewHolder
当我从另一个活动返回到带有回收器视图的片段时。
适配器代码:
public class FeedRecyclerAdapter extends RecyclerView.Adapter<FeedRecyclerAdapter.MovieViewHolder> {
public static final String getUserPhoto = APIConstants.BASE_URL + APIConstants.PICTURE_PATH_SMALL;
Movie[] mMovies = null;
Context mContext = null;
Activity mActivity = null;
LinearLayoutManager mManager = null;
private Bus uiBus = null;
int mCountOfLikes = 0;
//Constructor
public FeedRecyclerAdapter(Movie[] movies, Context context, Activity activity,
LinearLayoutManager manager) {
mContext = context;
mActivity = activity;
mMovies = movies;
mManager = manager;
uiBus = BusProvider.getUIBusInstance();
}
public void setMoviesAndNotify(Movie[] movies, boolean movieIgnored) {
mMovies = movies;
int firstItem = mManager.findFirstVisibleItemPosition();
View firstItemView = mManager.findViewByPosition(firstItem);
int topOffset = firstItemView.getTop();
notifyDataSetChanged();
if(movieIgnored) {
mManager.scrollToPositionWithOffset(firstItem - 1, topOffset);
} else {
mManager.scrollToPositionWithOffset(firstItem, topOffset);
}
}
// Create new views (called by layout manager)
@Override
public MovieViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext())
.inflate(R.layout.feed_one_recommended_movie_layout, parent, false);
return new MovieViewHolder(view);
}
// Replaced contend of each view (called by layout manager)
@Override
public void onBindViewHolder(MovieViewHolder holder, int position) {
setLikes(holder, position);
setAddToCollection(holder, position);
setTitle(holder, position);
setIgnoreMovieInfo(holder, position);
setMovieInfo(holder, position);
setPosterAndTrailer(holder, position);
setDescription(holder, position);
setTags(holder, position);
}
// returns item count (called by layout manager)
@Override
public int getItemCount() {
return mMovies != null ? mMovies.length : 0;
}
private void setLikes(final MovieViewHolder holder, final int position) {
List<Reason> likes = new ArrayList<>();
for(Reason reason : mMovies[position].reasons) {
if(reason.title.equals("Liked this movie")) {
likes.add(reason);
}
}
mCountOfLikes = likes.size();
holder.likeButton.setText(mContext.getString(R.string.like)
+ Html.fromHtml(getCountOfLikesString(mCountOfLikes)));
final MovieRepo repo = MovieRepo.getInstance();
final int pos = position;
final MovieViewHolder viewHolder = holder;
holder.likeButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(mMovies[pos].isLiked) {
repo.unlikeMovie(AuthStore.getInstance()
.getAuthToken(), mMovies[pos].id, new Callback<Movie>() {
@Override
public void success(Movie movie, Response response) {
Drawable img = mContext.getResources().getDrawable(R.drawable.ic_like);
viewHolder.likeButton
.setCompoundDrawablesWithIntrinsicBounds(img, null, null, null);
if (--mCountOfLikes <= 0) {
viewHolder.likeButton.setText(mContext.getString(R.string.like));
} else {
viewHolder.likeButton
.setText(Html.fromHtml(mContext.getString(R.string.like)
+ getCountOfLikesString(mCountOfLikes)));
}
mMovies[pos].isLiked = false;
}
@Override
public void failure(RetrofitError error) {
Toast.makeText(mContext.getApplicationContext(),
mContext.getString(R.string.cannot_like), Toast.LENGTH_LONG)
.show();
}
});
} else {
repo.likeMovie(AuthStore.getInstance()
.getAuthToken(), mMovies[pos].id, new Callback<Movie>() {
@Override
public void success(Movie movie, Response response) {
Drawable img = mContext.getResources().getDrawable(R.drawable.ic_liked_green);
viewHolder.likeButton
.setCompoundDrawablesWithIntrinsicBounds(img, null, null, null);
viewHolder.likeButton
.setText(Html.fromHtml(mContext.getString(R.string.like)
+ getCountOfLikesString(++mCountOfLikes)));
mMovies[pos].isLiked = true;
setComments(holder, position);
}
@Override
public void failure(RetrofitError error) {
Toast.makeText(mContext,
mContext.getString(R.string.cannot_like), Toast.LENGTH_LONG).show();
}
});
}
}
});
}
private void setComments(final MovieViewHolder holder, final int position) {
holder.likeAndSaveButtonLayout.setVisibility(View.GONE);
holder.commentsLayout.setVisibility(View.VISIBLE);
holder.sendCommentButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if (holder.commentsInputEdit.getText().length() > 0) {
CommentRepo repo = CommentRepo.getInstance();
repo.sendUserComment(AuthStore.getInstance().getAuthToken(), mMovies[position].id,
holder.commentsInputEdit.getText().toString(), new Callback<Void>() {
@Override
public void success(Void aVoid, Response response) {
Toast.makeText(mContext, mContext.getString(R.string.thanks_for_your_comment),
Toast.LENGTH_SHORT).show();
hideCommentsLayout(holder);
}
@Override
public void failure(RetrofitError error) {
Toast.makeText(mContext, mContext.getString(R.string.cannot_add_comment),
Toast.LENGTH_LONG).show();
}
});
} else {
hideCommentsLayout(holder);
}
}
});
}
private void hideCommentsLayout(MovieViewHolder holder) {
holder.commentsLayout.setVisibility(View.GONE);
holder.likeAndSaveButtonLayout.setVisibility(View.VISIBLE);
}
private void setAddToCollection(final MovieViewHolder holder, int position) {
final int pos = position;
if(mMovies[position].isInWatchlist) {
holder.saveButton
.setCompoundDrawablesWithIntrinsicBounds(R.drawable.ic_check_green, 0, 0, 0);
}
final CollectionRepo repo = CollectionRepo.getInstance();
holder.saveButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
if(!mMovies[pos].isInWatchlist) {
repo.addMovieToCollection(AuthStore.getInstance().getAuthToken(), 0, mMovies[pos].id, new Callback<MovieCollection[]>() {
@Override
public void success(MovieCollection[] movieCollections, Response response) {
holder.saveButton
.setCompoundDrawablesWithIntrinsicBounds(R.drawable.ic_check_green, 0, 0, 0);
mMovies[pos].isInWatchlist = true;
}
@Override
public void failure(RetrofitError error) {
Toast.makeText(mContext, mContext.getString(R.string.movie_not_added_to_collection),
Toast.LENGTH_LONG).show();
}
});
} else {
repo.removeMovieFromCollection(AuthStore.getInstance().getAuthToken(), 0,
mMovies[pos].id, new Callback<MovieCollection[]>() {
@Override
public void success(MovieCollection[] movieCollections, Response response) {
holder.saveButton
.setCompoundDrawablesWithIntrinsicBounds(R.drawable.ic_plus, 0, 0, 0);
mMovies[pos].isInWatchlist = false;
}
@Override
public void failure(RetrofitError error) {
Toast.makeText(mContext,
mContext.getString(R.string.cannot_delete_movie_from_watchlist),
Toast.LENGTH_LONG).show();
}
});
}
}
});
}
private String getCountOfLikesString(int countOfLikes) {
String countOfLikesStr;
if(countOfLikes == 0) {
countOfLikesStr = "";
} else if(countOfLikes > 999) {
countOfLikesStr = " " + (countOfLikes/1000) + "K";
} else if (countOfLikes > 999999){
countOfLikesStr = " " + (countOfLikes/1000000) + "M";
} else {
countOfLikesStr = " " + String.valueOf(countOfLikes);
}
return "<small>" + countOfLikesStr + "</small>";
}
private void setTitle(MovieViewHolder holder, final int position) {
holder.movieTitleTextView.setText(mMovies[position].title);
holder.movieTitleTextView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
MovieDetailActivity.openView(mContext, mMovies[position].id, true, false);
}
});
}
private void setIgnoreMovieInfo(MovieViewHolder holder, final int position) {
holder.ignoreMovie.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
MovieRepo repo = MovieRepo.getInstance();
repo.hideMovie(AuthStore.getInstance().getAuthToken(), mMovies[position].id,
new Callback<Void>() {
@Override
public void success(Void aVoid, Response response) {
Movie[] newMovies = new Movie[mMovies.length - 1];
for (int i = 0, j = 0; j < mMovies.length; i++, j++) {
if (i != position) {
newMovies[i] = mMovies[j];
} else {
if (++j < mMovies.length) {
newMovies[i] = mMovies[j];
}
}
}
uiBus.post(new MoviesChangedEvent(newMovies));
setMoviesAndNotify(newMovies, true);
Toast.makeText(mContext, mContext.getString(R.string.movie_ignored),
Toast.LENGTH_SHORT).show();
}
@Override
public void failure(RetrofitError error) {
Toast.makeText(mContext, mContext.getString(R.string.movie_ignored_failed),
Toast.LENGTH_LONG).show();
}
});
}
});
}
private void setMovieInfo(MovieViewHolder holder, int position) {
String imdp = "IMDB: ";
String sources = "", date;
if(mMovies[position].showtimes != null && mMovies[position].showtimes.length > 0) {
int countOfSources = mMovies[position].showtimes.length;
for(int i = 0; i < countOfSources; i++) {
sources += mMovies[position].showtimes[i].name + ", ";
}
sources = sources.trim();
if(sources.charAt(sources.length() - 1) == ',') {
if(sources.length() > 1) {
sources = sources.substring(0, sources.length() - 2);
} else {
sources = "";
}
}
} else {
sources = "";
}
imdp += mMovies[position].imdbRating + " | ";
if(sources.isEmpty()) {
date = mMovies[position].releaseYear;
} else {
date = mMovies[position].releaseYear + " | ";
}
holder.movieInfoTextView.setText(imdp + date + sources);
}
private void setPosterAndTrailer(final MovieViewHolder holder, final int position) {
if (mMovies[position] != null && mMovies[position].posterPath != null
&& !mMovies[position].posterPath.isEmpty()) {
Picasso.with(mContext)
.load(mMovies[position].posterPath)
.error(mContext.getResources().getDrawable(R.drawable.noposter))
.into(holder.posterImageView);
} else {
holder.posterImageView.setImageResource(R.drawable.noposter);
}
holder.posterImageView.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
MovieDetailActivity.openView(mActivity, mMovies[position].id, false, false);
}
});
if(mMovies[position] != null && mMovies[position].trailerLink != null
&& !mMovies[position].trailerLink.isEmpty()) {
holder.playTrailer.setVisibility(View.VISIBLE);
holder.playTrailer.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
MovieDetailActivity.openView(mActivity, mMovies[position].id, false, true);
}
});
}
}
private void setDescription(MovieViewHolder holder, int position) {
String text = mMovies[position].overview;
if(text == null || text.isEmpty()) {
holder.descriptionText.setText(mContext.getString(R.string.no_description));
} else if(text.length() > 200) {
text = text.substring(0, 196) + "...";
holder.descriptionText.setText(text);
} else {
holder.descriptionText.setText(text);
}
final int pos = position;
holder.descriptionText.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
MovieDetailActivity.openView(mActivity, mMovies[pos].id, false, false);
}
});
}
private void setTags(MovieViewHolder holder, int position) {
List<String> tags = Arrays.asList(mMovies[position].tags);
if(tags.size() > 0) {
CastAndTagsFeedAdapter adapter = new CastAndTagsFeedAdapter(tags,
mContext, ((FragmentActivity) mActivity).getSupportFragmentManager());
holder.tags.setItemMargin(10);
holder.tags.setAdapter(adapter);
} else {
holder.tags.setVisibility(View.GONE);
}
}
// class view holder that provide us a link for each element of list
public static class MovieViewHolder extends RecyclerView.ViewHolder {
TextView movieTitleTextView, movieInfoTextView, descriptionText, reasonsCountText;
TextView reasonText1, reasonAuthor1, reasonText2, reasonAuthor2;
EditText commentsInputEdit;
Button likeButton, saveButton, playTrailer, sendCommentButton;
ImageButton ignoreMovie;
ImageView posterImageView, userPicture1, userPicture2;
TwoWayView tags;
RelativeLayout mainReasonsLayout, firstReasonLayout, secondReasonLayout, reasonsListLayout;
RelativeLayout commentsLayout;
LinearLayout likeAndSaveButtonLayout;
ProgressBar progressBar;
public MovieViewHolder(View view) {
super(view);
movieTitleTextView = (TextView)view.findViewById(R.id.movie_title_text);
movieInfoTextView = (TextView)view.findViewById(R.id.movie_info_text);
descriptionText = (TextView)view.findViewById(R.id.text_description);
reasonsCountText = (TextView)view.findViewById(R.id.reason_count);
reasonText1 = (TextView)view.findViewById(R.id.reason_text_1);
reasonAuthor1 = (TextView)view.findViewById(R.id.author_1);
reasonText2 = (TextView)view.findViewById(R.id.reason_text_2);
reasonAuthor2 = (TextView)view.findViewById(R.id.author_2);
commentsInputEdit = (EditText)view.findViewById(R.id.comment_input);
likeButton = (Button)view.findViewById(R.id.like_button);
saveButton = (Button)view.findViewById(R.id.save_button);
playTrailer = (Button)view.findViewById(R.id.play_trailer_button);
sendCommentButton = (Button)view.findViewById(R.id.send_button);
ignoreMovie = (ImageButton)view.findViewById(R.id.ignore_movie_imagebutton);
posterImageView = (ImageView)view.findViewById(R.id.poster_image);
userPicture1 = (ImageView)view.findViewById(R.id.user_picture_1);
userPicture2 = (ImageView)view.findViewById(R.id.user_picture_2);
tags = (TwoWayView)view.findViewById(R.id.list_view_feed_tags);
mainReasonsLayout = (RelativeLayout)view.findViewById(R.id.reasons_main_layout);
firstReasonLayout = (RelativeLayout)view.findViewById(R.id.first_reason);
secondReasonLayout = (RelativeLayout)view.findViewById(R.id.second_reason);
reasonsListLayout = (RelativeLayout)view.findViewById(R.id.reasons_list);
commentsLayout = (RelativeLayout)view.findViewById(R.id.comments_layout);
likeAndSaveButtonLayout = (LinearLayout)view
.findViewById(R.id.like_and_save_buttons_layout);
progressBar = (ProgressBar)view.findViewById(R.id.centered_progress_bar);
}
}
}
例外:
java.lang.IndexOutOfBoundsException: Inconsistency detected. Invalid view holder adapter positionViewHolder{42319ed8 position=1 id=-1, oldPos=0, pLpos:0 scrap tmpDetached no parent}
at android.support.v7.widget.RecyclerView$Recycler.validateViewHolderForOffsetPosition(RecyclerView.java:4166)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4297)
at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:4278)
at android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:1947)
at android.support.v7.widget.GridLayoutManager.layoutChunk(GridLayoutManager.java:434)
at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1322)
at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:556)
at android.support.v7.widget.GridLayoutManager.onLayoutChildren(GridLayoutManager.java:171)
at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:2627)
at android.support.v7.widget.RecyclerView.onLayout(RecyclerView.java:2971)
at android.view.View.layout(View.java:15746)
at android.view.ViewGroup.layout(ViewGroup.java:4867)
at android.support.v4.widget.SwipeRefreshLayout.onLayout(SwipeRefreshLayout.java:562)
at android.view.View.layout(View.java:15746)
at android.view.ViewGroup.layout(ViewGroup.java:4867)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
at android.view.View.layout(View.java:15746)
at android.view.ViewGroup.layout(ViewGroup.java:4867)
at android.support.v4.view.ViewPager.onLayout(ViewPager.java:1626)
at android.view.View.layout(View.java:15746)
at android.view.ViewGroup.layout(ViewGroup.java:4867)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1677)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1531)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1440)
at android.view.View.layout(View.java:15746)
at android.view.ViewGroup.layout(ViewGroup.java:4867)
at android.support.v4.view.ViewPager.onLayout(ViewPager.java:1626)
at android.view.View.layout(View.java:15746)
at android.view.ViewGroup.layout(ViewGroup.java:4867)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1677)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1531)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1440)
at android.view.View.layout(View.java:15746)
at android.view.ViewGroup.layout(ViewGroup.java:4867)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
at android.view.View.layout(View.java:15746)
at android.view.ViewGroup.layout(ViewGroup.java:4867)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1677)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1531)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1440)
at android.view.View.layout(View.java:15746)
at android.view.ViewGroup.layout(ViewGroup.java:4867)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
07-30 12:48:22.688 9590-9590/com.Filmgrail.android.debug W/System.err? at android.view.View.layout(View.java:15746)
at android.view.ViewGroup.layout(ViewGroup.java:4867)
at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1677)
at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1531)
at android.widget.LinearLayout.onLayout(LinearLayout.java:1440)
at android.view.View.layout(View.java:15746)
at android.view.ViewGroup.layout(ViewGroup.java:4867)
at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
at android.view.View.layout(View.java:15746)
at android.view.ViewGroup.layout(ViewGroup.java:4867)
at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2356)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2069)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1254)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6630)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:803)
at android.view.Choreographer.doCallbacks(Choreographer.java:603)
at android.view.Choreographer.doFrame(Choreographer.java:573)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:789)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5479)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1283)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1099)
at dalvik.system.NativeStart.main(Native Method)
我该如何解决这个问题?
我们的QA检测到一个错误:当旋转Android设备(Droid Turbo)时，发生了以下recyclerview相关的崩溃:
java.lang.IndexOutOfBoundsException: 不一致。无效项位置2(偏移量:2).state:3
对我来说，它看起来像一个内部错误在RecyclerView，因为我不能想到这是由我们的代码直接引起的任何方式…
有人遇到过这个问题吗?
解决方案是什么?
一个残酷的解决方法可能是在异常发生时捕获异常并从头重新创建RecyclverView实例，以避免留下损坏的状态。
但是，如果可能的话，我希望更好地理解这个问题(也许从根源上解决它)，而不是掩盖它。
这种细菌不容易繁殖，但一旦发生就会致命。
完整的堆栈跟踪:
W/dalvikvm( 7546): threadid=1: thread exiting with uncaught exception (group=0x41987d40)
E/AndroidRuntime( 7546): FATAL EXCEPTION: main
E/AndroidRuntime( 7546): Process: com.oblong.mezzedroid, PID: 7546
E/AndroidRuntime( 7546): java.lang.IndexOutOfBoundsException: Inconsistency detected. Invalid item position 2(offset:2).state:3
E/AndroidRuntime( 7546): at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:3382)
E/AndroidRuntime( 7546): at android.support.v7.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:3340)
E/AndroidRuntime( 7546): at android.support.v7.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:1810)
E/AndroidRuntime( 7546): at android.support.v7.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1306)
E/AndroidRuntime( 7546): at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1269)
E/AndroidRuntime( 7546): at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:523)
E/AndroidRuntime( 7546): at org.liboid.recycler_view.RecyclerViewContainer$LiLinearLayoutManager.onLayoutChildren(RecyclerViewContainer.java:179)
E/AndroidRuntime( 7546): at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:1942)
E/AndroidRuntime( 7546): at android.support.v7.widget.RecyclerView.onLayout(RecyclerView.java:2237)
E/AndroidRuntime( 7546): at org.liboid.recycler_view.LiRecyclerView.onLayout(LiRecyclerView.java:30)
E/AndroidRuntime( 7546): at android.view.View.layout(View.java:14946)
E/AndroidRuntime( 7546): at android.view.ViewGroup.layout(ViewGroup.java:4651)
E/AndroidRuntime( 7546): at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
E/AndroidRuntime( 7546): at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
E/AndroidRuntime( 7546): at android.view.View.layout(View.java:14946)
E/AndroidRuntime( 7546): at android.view.ViewGroup.layout(ViewGroup.java:4651)
E/AndroidRuntime( 7546): at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
E/AndroidRuntime( 7546): at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
E/AndroidRuntime( 7546): at android.view.View.layout(View.java:14946)
E/AndroidRuntime( 7546): at android.view.ViewGroup.layout(ViewGroup.java:4651)
E/AndroidRuntime( 7546): at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1671)
E/AndroidRuntime( 7546): at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1525)
E/AndroidRuntime( 7546): at android.widget.LinearLayout.onLayout(LinearLayout.java:1434)
E/AndroidRuntime( 7546): at com.oblong.mezzedroid.workspace.content.bins.BinsContainerLayout.onLayout(BinsContainerLayout.java:22)
E/AndroidRuntime( 7546): at android.view.View.layout(View.java:14946)
E/AndroidRuntime( 7546): at android.view.ViewGroup.layout(ViewGroup.java:4651)
E/AndroidRuntime( 7546): at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1671)
E/AndroidRuntime( 7546): at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1525)
E/AndroidRuntime( 7546): at android.widget.LinearLayout.onLayout(LinearLayout.java:1434)
E/AndroidRuntime( 7546): at android.view.View.layout(View.java:14946)
E/AndroidRuntime( 7546): at android.view.ViewGroup.layout(ViewGroup.java:4651)
E/AndroidRuntime( 7546): at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
E/AndroidRuntime( 7546): at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
E/AndroidRuntime( 7546): at android.view.View.layout(View.java:14946)
E/AndroidRuntime( 7546): at android.view.ViewGroup.layout(ViewGroup.java:4651)
E/AndroidRuntime( 7546): at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
E/AndroidRuntime( 7546): at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
E/AndroidRuntime( 7546): at android.view.View.layout(View.java:14946)
E/AndroidRuntime( 7546): at android.view.ViewGroup.layout(ViewGroup.java:4651)
E/AndroidRuntime( 7546): at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1671)
E/AndroidRuntime( 7546): at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1525)
E/AndroidRuntime( 7546): at android.widget.LinearLayout.onLayout(LinearLayout.java:1434)
E/AndroidRuntime( 7546): at android.view.View.layout(View.java:14946)
E/AndroidRuntime( 7546): at android.view.ViewGroup.layout(ViewGroup.java:4651)
E/AndroidRuntime( 7546): at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
E/AndroidRuntime( 7546): at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
E/AndroidRuntime( 7546): at android.view.View.layout(View.java:14946)
E/AndroidRuntime( 7546): at android.view.ViewGroup.layout(ViewGroup.java:4651)
E/AndroidRuntime( 7546): at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1671)
E/AndroidRuntime( 7546): at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1525)
E/AndroidRuntime( 7546): at android.widget.LinearLayout.onLayout(LinearLayout.java:1434)
E/AndroidRuntime( 7546): at android.view.View.layout(View.java:14946)
E/AndroidRuntime( 7546): at android.view.ViewGroup.layout(ViewGroup.java:4651)
E/AndroidRuntime( 7546): at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
E/AndroidRuntime( 7546): at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
E/AndroidRuntime( 7546): at android.view.View.layout(View.java:14946)
E/AndroidRuntime( 7546): at android.view.ViewGroup.layout(ViewGroup.java:4651)
E/AndroidRuntime( 7546): at android.view.ViewRootImpl.performLayout(ViewRootImpl.java:2132)
E/AndroidRuntime( 7546): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1872)
E/AndroidRuntime( 7546): at andro