问题：
回收人员视图和java.lang.索引输出边界异常：检测到不一致。三星设备中无效的视图持有人适配器位置视图持有人
谭文林
我有一个“回收者”视图，它在除三星以外的所有设备上都能完美运行。在三星上，我明白了
JAVAlang.IndexOutOfBoundsException:检测到不一致。视图保持架适配器位置无效视图保持架
当我从另一个活动的“回收者”视图返回片段时。
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)
我该怎么解决这个问题？
共有3个答案
鲜于浩淼
我曾经遇到过这个问题，我通过包装LayoutManager和禁用预测性动画来解决这个问题。
这里有一个例子：
public class LinearLayoutManagerWrapper extends LinearLayoutManager {
public LinearLayoutManagerWrapper(Context context) {
super(context);
}
public LinearLayoutManagerWrapper(Context context, int orientation, boolean reverseLayout) {
super(context, orientation, reverseLayout);
}
public LinearLayoutManagerWrapper(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
}
@Override
public boolean supportsPredictiveItemAnimations() {
return false;
}
}
并将其设置为RecyclerView：
RecyclerView.LayoutManager mLayoutManager = new LinearLayoutManagerWrapper(context, LinearLayoutManager.VERTICAL, false);
沈单弓
这是一个用全新内容刷新数据的示例。您可以轻松地修改它以满足您的需求。我通过调用：
notifyItemRangeRemoved(0, previousContentSize);
之前：
notifyItemRangeInserted(0, newContentSize);
这是正确的解决方案，AOSP项目成员在本文中也提到了这一点。
澹台俊晖
这个问题是由不同线程中修改的数据引起的。最好的方法是检查所有数据访问。解决方法是包装LinearLayoutManager。
实际上，RecyclerView中有一个bug，支持23.1.1的版本仍然没有修复。
对于一个解决方案，请注意回溯堆栈，如果我们能在某个类中捕获这个异常，它可能会跳过这个崩溃。对我来说，我创建了一个LinearLayoutManagerWrapper，并覆盖了onLayoutCRC：
public class WrapContentLinearLayoutManager extends LinearLayoutManager {
//... constructor
@Override
public void onLayoutChildren(RecyclerView.Recycler recycler, RecyclerView.State state) {
try {
super.onLayoutChildren(recycler, state);
} catch (IndexOutOfBoundsException e) {
Log.e("TAG", "meet a IOOBE in RecyclerView");
}
}
}
然后将其设置为RecyclerView：
RecyclerView recyclerView = (RecyclerView)findViewById(R.id.recycler_view);
recyclerView.setLayoutManager(new WrapContentLinearLayoutManager(activity, LinearLayoutManager.HORIZONTAL, false));
实际上抓住了这个例外，似乎还没有任何副作用。
此外，如果使用GridLayoutManager或StaggedGridLayoutManager则必须为其创建包装。
注意：RecyclView可能处于错误的内部状态。
类似资料：
-
我已经开始在Crashlytics上报道这次坠机事件。我不知道如何复制它，但它似乎都是内部的代码。我认为这来自于我的＜代码＞回收视图＜/代码＞它从未真正改变过。用户可以刷新它，但随后会替换所有项，并调用。
-
我有一个RxJava2可观察到，它接受两个列表，为它们计算diff结果，并将此数据发送到适配器。适配器在主线程上调度更新。 我检测到不一致。在某些设备上有时出现无效视图保持器适配器PositionViewHolder错误。我也搞不清我的代码出了什么问题。最小SDK 21,目标SDK 26,RecyclerView版本为26.0.0。我知道扩展LinearLayoutManager和静默捕获此错误的
-
在此处输入图像描述 我有一份父母名单，每个人都有零个或多个孩子，我用回收视图给父母看。我想向家长展示每个回收人员视图项目的标题，下面是向所有孩子展示向孩子展示的最好方式是什么？是否适合在列表视图中显示孩子，或者为每个孩子添加动态视图，如果是的话，如何做到这一点？我已经附上了布局的图像，请检查我的意思，谢谢 在此处输入图像描述
-
我已经被困在这个问题上几天了，真的需要一些帮助和理解如何用DiffUtil设置RecylerView（RV），似乎无论我尝试什么，我都无法让RV更新。我会浏览我所拥有的，希望有人能解释一下我做错了什么。 应用程序启动 创建视图模型， 然后在ViewModel中填充LiveDataList。 LayoutManager和ListAdapter应用于RV 为什么在LiveDataList中添加或删除一
-
问题内容： 我在日食中收到以下警告： 视图适配器的无条件布局膨胀：应该使用View Holder模式（将传递给此方法的回收视图用作第二个参数）以使滚动更流畅。 上： 我有一个实现了CheckBox的基本适配器，并且添加了一个标记以使CheckBox正常工作。 这是代码： 结果正确显示。如何解决此警告？我还无法找到解决方案吗？ 谢谢！ 问题答案： 试试这个