RecyclerView 可以与其余的片段布局一起滚动吗？
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【中文标题】RecyclerView 可以与其余的片段布局一起滚动吗？【英文标题】：Can the RecyclerView scroll with the rest of the fragment layouts? 【发布时间】：2021-09-13 12:23:21 【问题描述】：我已经在一个名为 TvShowEpisodeDetails 的活动中设置了一个带有 ViewPager 的 RecyclerView 适配器，它运行良好但有一个问题，RecyclerView 的布局在片段中上下滚动时是固定的（TvShowEpisodeDetailsFragment） .但我希望它与他们一起滚动。
RecyclerView 和 ViewPager 都设置在 viewpager_with_toolbar_overlay.xml 布局中，并且都已在 Activity 中设置。
TvShowEpisodeDetailsFragment 是属于活动类TvShowEpisodeDetails 的片段类，片段可以创建电视节目季所能提供的尽可能多的剧集。
当然，如果我在片段中设置RecyclerView 适配器，这个问题就会消失，但我会遇到不可修复的突出显示和滚动问题，这就是为什么我在活动中设置它，因为它不会给出这些问题。
我需要让它在活动中以某种方式工作。
我的目标是 RecyclerView 和 ViewPager 必须在相同的布局 XML 文件中，并且它们都必须在活动或片段类中
是否可以使 RecyclerView 与其余片段布局一起滚动？
或
是否可以通过编程方式完成？
这是活动
public class TvShowEpisodeDetails extends MizActivity
@Override
protected int getLayoutResource()
return R.layout.viewpager_with_toolbar_overlay;
@Override
public void onCreate(Bundle savedInstanceState)
mBus = MizuuApplication.getBus();
super.onCreate(savedInstanceState);
// Set theme
setTheme(R.style.Mizuu_Theme_NoBackground);
// setting episodeslist
final ArrayList<PlanetModel> episodeslist = new ArrayList<>();
for(TvShowEpisode e : mEpisodes)
episodeslist.add(new PlanetModel(e.mEpisode));
// setting RecyclerView
mEpisodesList = (RecyclerView) findViewById(R.id.episodesLIST);
// Setting LinearLayoutManager
LinearLayoutManager layoutManager
= new LinearLayoutManager(this.getApplicationContext(), LinearLayoutManager.HORIZONTAL, false);
//mEpisodesList.setLayoutManager(new LinearLayoutManager(mContext));
mEpisodesList.setLayoutManager(layoutManager);
// Setting RecyclerView Adapter
PlanetAdapter.OnItemClickListener indicatorCallback = new PlanetAdapter.OnItemClickListener()
@Override
public void onItemClick(String item)
SharedPreferences getPref = getContext().getSharedPreferences("PlanetAdapter", Context.MODE_PRIVATE);
int pos = getPref.getInt("newPosition", 0);
mViewPager.setCurrentItem(pos,false);
;
final PlanetAdapter planetAdapter = new PlanetAdapter(episodeslist,indicatorCallback);
mEpisodesList.setAdapter(planetAdapter);
// Setting ViewPager
mViewPager = (ViewPager) findViewById(R.id.awesomepager);
mViewPager.setAdapter(new TvShowEpisodeDetailsAdapter(getSupportFragmentManager()));
mViewPager.setOnPageChangeListener(new ViewPager.SimpleOnPageChangeListener()
@Override
public void onPageSelected(int position)
planetAdapter.setSelectedIndex(position);
planetAdapter.notifyDataSetChanged();
mEpisodesList.smoothScrollToPosition(position);
//mEpisodesList.scrollToPosition(position);
for (int i=0; i<episodeslist.size(); i++)
episodeslist.get(i).setPlanetSelected(false);
episodeslist.get(position).setPlanetSelected(true);
ViewUtils.updateToolbarBackground(TvShowEpisodeDetails.this, mToolbar, 0, mEpisodes.get(position).getTitle(), Color.TRANSPARENT);
);
if (savedInstanceState != null)
mViewPager.setCurrentItem(savedInstanceState.getInt("tab", 0));
else
for (int i = 0; i < mEpisodes.size(); i++)
if (mEpisodes.get(i).getSeason().equals(MizLib.addIndexZero(mSeason)) && mEpisodes.get(i).getEpisode().equals(MizLib.addIndexZero(mEpisode)))
mViewPager.setCurrentItem(i);
break;
viewpager_with_toolbar_overlay
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/layout"
android:layout_
android:layout_ >
<android.support.v4.view.ViewPager
android:id="@+id/awesomepager"
android:layout_
android:layout_ />
<ProgressBar
android:id="@+id/progressbar"
style="?android:attr/progressBarStyleLarge"
android:layout_
android:layout_
android:layout_gravity="center"
android:visibility="gone" />
<LinearLayout
android:layout_
android:layout_
android:background="#068006"
android:layout_marginTop="450dp"
>
<android.support.v7.widget.RecyclerView
android:id="@+id/episodesLIST"
android:layout_
android:layout_
android:orientation="horizontal"
android:scrollbars="horizontal" />
</LinearLayout>
<include layout="@layout/toolbar_layout" />
</FrameLayout>
这是在片段类的onCreateView 中膨胀的片段的XML 布局
episode_details.xml
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_
android:layout_
android:background="@color/abc_input_method_navigation_guard">
<com.miz.views.ObservableScrollView
android:id="@+id/observableScrollView"
android:layout_
android:layout_>
<LinearLayout
android:layout_
android:layout_
android:orientation="vertical">
<RelativeLayout
android:id="@+id/relativeLayout1"
android:layout_
android:layout_>
<ImageView
android:id="@+id/episodePhoto"
android:layout_
android:layout_
android:scaleType="centerCrop"
android:src="@drawable/bg" />
<com.melnykov.fab.FloatingActionButton
android:id="@+id/fab"
android:layout_
android:layout_
android:layout_below="@+id/episodePhoto"
android:layout_alignParentEnd="false"
android:layout_alignParentRight="true"
android:layout_marginTop="@dimen/content_details_fab_negative_margin"
android:layout_marginRight="@dimen/content_details_baseline_margin"
android:src="@drawable/ic_play_arrow_white_36dp"
app:fab_colorNormal="#666"
app:fab_type="mini" />
<LinearLayout
android:id="@+id/linearLayout"
android:layout_
android:layout_
android:layout_below="@+id/fab"
android:layout_marginLeft="@dimen/content_details_baseline_margin"
android:layout_marginTop="@dimen/content_details_title_margin_top"
android:layout_marginRight="@dimen/content_details_baseline_margin"
android:layout_toLeftOf="@+id/fab"
android:orientation="vertical">
<TextView
android:id="@+id/movieTitle"
android:layout_
android:layout_
android:ellipsize="end"
android:maxLines="3"
android:textAppearance="?android:attr/textAppearanceLarge"
android:textColor="#FFFFFF"
android:textSize="@dimen/content_details_title" />
<TextView
android:id="@+id/textView7"
android:layout_
android:layout_
android:layout_marginTop="@dimen/content_details_very_small_margin"
android:layout_marginBottom="@dimen/content_details_baseline_margin"
android:textAppearance="?android:attr/textAppearanceLarge"
android:textColor="#FFFFFF"
android:textSize="@dimen/content_details_subheader"
android:textStyle="bold|italic" />
</LinearLayout>
</RelativeLayout>
<LinearLayout
android:id="@+id/details_area"
android:layout_
android:layout_
android:background="#666"
android:baselineAligned="false"
android:elevation="1dp"
android:minHeight="@dimen/content_details_large_margin"
android:orientation="horizontal"
android:paddingLeft="@dimen/content_details_baseline_margin"
android:paddingTop="@dimen/content_details_small_margin"
android:paddingRight="@dimen/content_details_baseline_margin"
android:paddingBottom="@dimen/content_details_small_margin">
<LinearLayout
android:layout_
android:layout_
android:layout_gravity="center"
android:layout_weight="1"
android:gravity="center_horizontal"
android:orientation="vertical">
<TextView
android:id="@+id/TextView03"
android:layout_
android:layout_
android:ellipsize="end"
android:gravity="center_horizontal"
android:lines="1"
android:maxLines="1"
android:text="@string/detailsAirDate"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textSize="@dimen/content_details_area_subheader" />
<TextView
android:id="@+id/textReleaseDate"
android:layout_
android:layout_
android:gravity="center_horizontal"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#FFFFFF"
android:textSize="@dimen/content_details_area_header"
android:textStyle="bold" />
</LinearLayout>
<LinearLayout
android:layout_
android:layout_
android:layout_gravity="center"
android:layout_weight="1"
android:gravity="center_horizontal"
android:orientation="vertical">
<TextView
android:id="@+id/textView61"
android:layout_
android:layout_
android:ellipsize="end"
android:gravity="center_horizontal"
android:lines="1"
android:maxLines="1"
android:text="@string/detailsRating"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textSize="@dimen/content_details_area_subheader" />
<TextView
android:id="@+id/textView12"
android:layout_
android:layout_
android:gravity="center_horizontal"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#FFFFFF"
android:textSize="@dimen/content_details_area_header"
android:textStyle="bold" />
</LinearLayout>
</LinearLayout>
<LinearLayout
android:layout_
android:layout_
android:orientation="vertical"
android:padding="@dimen/content_details_baseline_margin">
<TextView
android:id="@+id/textView2"
android:layout_
android:layout_
android:layout_marginBottom="@dimen/content_details_baseline_margin"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#FFFFFF"
android:textSize="@dimen/content_details_body_text" />
<TextView
android:id="@+id/director"
android:layout_
android:layout_
android:layout_marginBottom="12dp"
android:drawableLeft="@drawable/ic_movie_white_24dp"
android:drawablePadding="@dimen/movie_details_padding"
android:focusable="false"
android:gravity="center_vertical"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#f0f0f0"
android:textSize="@dimen/content_details_body_text" />
<TextView
android:id="@+id/writer"
android:layout_
android:layout_
android:layout_marginBottom="12dp"
android:drawableLeft="@drawable/ic_edit_white_24dp"
android:drawablePadding="@dimen/movie_details_padding"
android:focusable="false"
android:gravity="center_vertical"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#f0f0f0"
android:textSize="@dimen/content_details_body_text" />
<TextView
android:id="@+id/guest_stars"
android:layout_
android:layout_
android:layout_marginBottom="12dp"
android:drawableLeft="@drawable/ic_people_white_24dp"
android:drawablePadding="@dimen/movie_details_padding"
android:focusable="false"
android:gravity="center_vertical"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#f0f0f0"
android:textSize="@dimen/content_details_body_text" />
<TextView
android:id="@+id/textView3"
android:layout_
android:layout_
android:drawableLeft="@drawable/ic_folder_open_white_24dp"
android:drawablePadding="@dimen/movie_details_padding"
android:gravity="center_vertical"
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="#FFFFFF"
android:textSize="@dimen/content_details_body_text" />
</LinearLayout>
</LinearLayout>
</com.miz.views.ObservableScrollView>
<FrameLayout
android:id="@+id/progress_layout"
android:layout_
android:layout_
android:background="@drawable/bg"
android:visibility="gone">
<ProgressBar
android:id="@+id/progressBar1"
style="?android:attr/progressBarStyleLarge"
android:layout_
android:layout_
android:layout_gravity="center" />
</FrameLayout>
</FrameLayout>
更新
片段
@SuppressLint("InflateParams") public class TvShowEpisodeDetailsFragment extends Fragment
public TvShowEpisodeDetailsFragment()
public static TvShowEpisodeDetailsFragment newInstance(String showId, int season, int episode)
TvShowEpisodeDetailsFragment pageFragment = new TvShowEpisodeDetailsFragment();
Bundle bundle = new Bundle();
bundle.putString("showId", showId);
bundle.putInt("season", season);
bundle.putInt("episode", episode);
pageFragment.setArguments(bundle);
return pageFragment;
@Override
public void onCreate(Bundle savedInstanceState)
super.onCreate(savedInstanceState);
setRetainInstance(true);
setHasOptionsMenu(true);
mContext = getActivity();
mBus = MizuuApplication.getBus();
mShowFileLocation = PreferenceManager.getDefaultSharedPreferences(getActivity()).getBoolean(SHOW_FILE_LOCATION, true);
mPicasso = MizuuApplication.getPicassoDetailsView(getActivity());
mMediumItalic = TypefaceUtils.getRobotoMediumItalic(mContext);
mMedium = TypefaceUtils.getRobotoMedium(mContext);
mCondensedRegular = TypefaceUtils.getRobotoCondensedRegular(mContext);
mDatabaseHelper = MizuuApplication.getTvEpisodeDbAdapter();
LocalBroadcastManager.getInstance(mContext).registerReceiver(mBroadcastReceiver,
new IntentFilter(LocalBroadcastUtils.UPDATE_TV_SHOW_EPISODE_DETAILS_OVERVIEW));
loadEpisode();
@Override
public void onDestroy()
super.onDestroy();
LocalBroadcastManager.getInstance(mContext).unregisterReceiver(mBroadcastReceiver);
private BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver()
@Override
public void onReceive(Context context, Intent intent)
loadEpisode();
loadData();
;
private void loadEpisode()
if (!getArguments().getString("showId").isEmpty() && getArguments().getInt("season") >= 0 && getArguments().getInt("episode") >= 0)
Cursor cursor = mDatabaseHelper.getEpisode(getArguments().getString("showId"), getArguments().getInt("season"), getArguments().getInt("episode"));
if (cursor.moveToFirst())
mEpisode = new TvShowEpisode(getActivity(),
cursor.getString(cursor.getColumnIndex(DbAdapterTvShowEpisodes.KEY_SHOW_ID)),
cursor.getString(cursor.getColumnIndex(DbAdapterTvShowEpisodes.KEY_EPISODE_TITLE)),
cursor.getString(cursor.getColumnIndex(DbAdapterTvShowEpisodes.KEY_EPISODE_PLOT)),
cursor.getString(cursor.getColumnIndex(DbAdapterTvShowEpisodes.KEY_SEASON)),
cursor.getString(cursor.getColumnIndex(DbAdapterTvShowEpisodes.KEY_EPISODE)),
cursor.getString(cursor.getColumnIndex(DbAdapterTvShowEpisodes.KEY_EPISODE_AIRDATE)),
cursor.getString(cursor.getColumnIndex(DbAdapterTvShowEpisodes.KEY_EPISODE_DIRECTOR)),
cursor.getString(cursor.getColumnIndex(DbAdapterTvShowEpisodes.KEY_EPISODE_WRITER)),
cursor.getString(cursor.getColumnIndex(DbAdapterTvShowEpisodes.KEY_EPISODE_GUESTSTARS)),
cursor.getString(cursor.getColumnIndex(DbAdapterTvShowEpisodes.KEY_EPISODE_RATING)),
cursor.getString(cursor.getColumnIndex(DbAdapterTvShowEpisodes.KEY_HAS_WATCHED)),
cursor.getString(cursor.getColumnIndex(DbAdapterTvShowEpisodes.KEY_FAVOURITE))
);
mEpisode.setFilepaths(MizuuApplication.getTvShowEpisodeMappingsDbAdapter().getFilepathsForEpisode(
cursor.getString(cursor.getColumnIndex(DbAdapterTvShowEpisodes.KEY_SHOW_ID)),
cursor.getString(cursor.getColumnIndex(DbAdapterTvShowEpisodes.KEY_SEASON)),
cursor.getString(cursor.getColumnIndex(DbAdapterTvShowEpisodes.KEY_EPISODE))
));
cursor.close();
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
return inflater.inflate(R.layout.episode_details, container, false);
@Override
public void onViewCreated(final View view, Bundle savedInstanceState)
super.onViewCreated(view, savedInstanceState);
mBackdrop = (ImageView) view.findViewById(R.id.imageBackground);
mEpisodePhoto = (ImageView) view.findViewById(R.id.episodePhoto);
mDetailsArea = view.findViewById(R.id.details_area);
mTitle = (TextView) view.findViewById(R.id.movieTitle);
mSeasonEpisodeNumber = (TextView) view.findViewById(R.id.textView7);
mDescription = (TextView) view.findViewById(R.id.textView2);
mFileSource = (TextView) view.findViewById(R.id.textView3);
mAirDate = (TextView) view.findViewById(R.id.textReleaseDate);
mRating = (TextView) view.findViewById(R.id.textView12);
mDirector = (TextView) view.findViewById(R.id.director);
mWriter = (TextView) view.findViewById(R.id.writer);
mGuestStars = (TextView) view.findViewById(R.id.guest_stars);
mScrollView = (ObservableScrollView) view.findViewById(R.id.observableScrollView);
mFab = (FloatingActionButton) view.findViewById(R.id.fab);
mFab.setOnClickListener(new OnClickListener()
@Override
public void onClick(View v)
ViewUtils.animateFabJump(v, new SimpleAnimatorListener()
@Override
public void onAnimationEnd(Animator animation)
play();
);
);
...
...
【问题讨论】：
与您的问题没有真正的关系，但您似乎使用的是非常旧且过时的依赖项，您应该考虑使用 androidX 依赖项 谢谢你，你说得对，我肯定会升级，但现在我真的卡住了。 您的recyclerview 不在viewPager 的片段内。和你滚动的片段。如果您希望 recyclerView 随视图滚动，请将其添加到片段中。
谢谢，你说得对，我已经这样做了，但是我遇到了 recyclerView 的项目突出显示问题，所以我别无选择，只能将它移到活动中。
【参考方案1】：
我已经在一个名为
TvShowEpisodeDetails的活动中设置了一个带有ViewPager的RecyclerView适配器，它运行良好但有一个问题，RecyclerView 的布局在片段中上下滚动时是固定的（TvShowEpisodeDetailsFragment） .但我希望它与他们一起滚动。
很难在ViewPager 页面片段之外使用RecyclerView；因为当您在页面片段和独立（即活动）RecyclerView 之间向上/向下滚动页面（或滑动到下一页/上一页时）时，您无法同步和链接触摸/运动事件。即使这样也不会顺利。
因此，RecyclerView 应该是 ViewPager 页面的一部分。
如果我在片段中设置 RecyclerView 适配器，这个问题当然会消失，但我会遇到无法修复的突出显示和滚动问题
所以，现在在ViewPager 片段中添加RecyclerView 的问题是当您单击任何项目或将ViewPager 滑动到右/左页面时，RecyclerView 项目的突出显示问题。
但是，主要问题是每个页面都有一个 RecyclerView 实例，即如果您有 5 个页面，那么您就有 5 个 RecyclerView。
因此，仅在 RecyclerView 适配器类中跟踪突出显示很麻烦。因此，仅使用 OnClickListeners 进行操作将遇到将这些 RecyclerView 和适配器实例链接在一起以更新其突出显示项的问题。
所以，一个更简单的方法是向RecyclerView 适配器传递一个带有所选项目（绝对等于当前ViewPager 页面位置）的参数。
然后检查onBindViewHolder() 如果position 等于传入的值，则突出显示该项目；否则保留原色。
所以，把它包装成行动：
将适配器构造函数更改为接受 highlight_position 参数public PlanetAdapter(ArrayList<PlanetModel> episodeslist,
int highlightedPosition, OnItemClickListener listener)
newInstance() 创建 ViewPager 片段时，传入页面片段的当前位置：
所以，在TvShowEpisodeDetails 活动中：
for (int i = 0; i < mEpisodes.size(); i++)
fragments.add(TvShowEpisodeDetailsFragment
.newInstance(mShowId,
Integer.parseInt(mEpisodes.get(i).getSeason()),
Integer.parseInt(mEpisodes.get(i).getEpisode()),
i)); // The position
在TvShowEpisodeDetailsFragment 片段中，将其注册到片段参数中的字段中：
public static TvShowEpisodeDetailsFragment newInstance(String showId, int season, int episode, int position) // adding position
TvShowEpisodeDetailsFragment pageFragment = new TvShowEpisodeDetailsFragment();
Bundle bundle = new Bundle();
// trimmed code.
bundle.putInt("position", position); // <<<< into the bundle
pageFragment.setArguments(bundle);
return pageFragment;
int currentPosition = getArguments().getInt("position");
planetAdapter = new PlanetAdapter(episodeslist, currentPosition, new PlanetAdapter.OnItemClickListener()
@Override
public void onItemClick(final int pos)
mCallback.sendText(pos);
);
public class PlanetAdapter extends RecyclerView.Adapter<PlanetAdapter.PlanetViewHolder>
private final int highlightedPos;
public PlanetAdapter(ArrayList<PlanetModel> episodeslist, int highlightedPosition, OnItemClickListener listener)
this.episodeslist = episodeslist;
this.listener = listener;
this.highlightedPos = highlightedPosition; // <<< set the position
@Override
public void onBindViewHolder(PlanetAdapter.PlanetViewHolder vh, final int position)
TextView tv = (TextView) vh.itemView;
PlanetModel planetModel = episodeslist.get(position);
tv.setText(planetModel.getPlanetName());
tv.setCompoundDrawablesWithIntrinsicBounds(R.drawable.bg, 0, 0, 0);
if (highlightedPos == position) //<<<<< Highlight the item
vh.itemView.setBackgroundColor(getContext().getResources().getColor(R.color.colorPrimaryLight));
Log.d("LOG_TAG", "onClick: Highlight item: " + highlightedPos);
else
vh.itemView.setBackgroundColor(getContext().getResources().getColor(R.color.colorPrimaryDark));
Log.d("LOG_TAG", "onClick: No highlight: " + highlightedPos);
【讨论】：
以上是关于RecyclerView 可以与其余的片段布局一起滚动吗？的主要内容，如果未能解决你的问题，请参考以下文章
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