androidx.recyclerview.widget.SimpleItemAnimator Java Examples

@Override
protected void onCreate(@Nullable final Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_scanner);
    ButterKnife.bind(this);

    final MaterialToolbar toolbar = findViewById(R.id.toolbar);
    toolbar.setTitle(R.string.app_name);
    setSupportActionBar(toolbar);

    // Create view model containing utility methods for scanning
    scannerViewModel = new ViewModelProvider(this).get(ScannerViewModel.class);
    scannerViewModel.getScannerState().observe(this, this::startScan);

    // Configure the recycler view
    final RecyclerView recyclerView = findViewById(R.id.recycler_view_ble_devices);
    recyclerView.setLayoutManager(new LinearLayoutManager(this));
    recyclerView.addItemDecoration(new DividerItemDecoration(this, DividerItemDecoration.VERTICAL));
    final RecyclerView.ItemAnimator animator = recyclerView.getItemAnimator();
    if (animator instanceof SimpleItemAnimator) {
        ((SimpleItemAnimator) animator).setSupportsChangeAnimations(false);
    }
    final DevicesAdapter adapter = new DevicesAdapter(this, scannerViewModel.getDevices());
    adapter.setOnItemClickListener(this);
    recyclerView.setAdapter(adapter);
}
 

/**
 * 初始化相关adapter
 */
private void initAdapters() {
    mFolderListRecyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
    mImageSetAdapter = new PickerFolderAdapter(presenter, uiConfig);
    mFolderListRecyclerView.setAdapter(mImageSetAdapter);
    mImageSetAdapter.refreshData(imageSets);

    mAdapter = new PickerItemAdapter(selectList, new ArrayList<ImageItem>(), selectConfig, presenter, uiConfig);
    mAdapter.setHasStableIds(true);
    mAdapter.setOnActionResult(this);
    layoutManager = new GridLayoutManager(mContext, selectConfig.getColumnCount());
    if (mRecyclerView.getItemAnimator() instanceof SimpleItemAnimator) {
        ((SimpleItemAnimator) mRecyclerView.getItemAnimator()).setSupportsChangeAnimations(false);
        mRecyclerView.getItemAnimator().setChangeDuration(0);// 通过设置动画执行时间为0来解决闪烁问题
    }
    mRecyclerView.setLayoutManager(layoutManager);
    mRecyclerView.setAdapter(mAdapter);
}
 

@Nullable
@Override
public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.mal_material_about_content, container, false);

    recyclerView = (RecyclerView) rootView.findViewById(R.id.mal_recyclerview);
    adapter = new MaterialAboutListAdapter(getViewTypeManager());
    recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
    recyclerView.setAdapter(adapter);

    RecyclerView.ItemAnimator animator = recyclerView.getItemAnimator();
    if (animator instanceof SimpleItemAnimator) {
        ((SimpleItemAnimator) animator).setSupportsChangeAnimations(false);
    }

    recyclerView.setAlpha(0f);
    recyclerView.setTranslationY(20);

    new ListTask(this).execute();

    return rootView;
}
 

@Override
protected void init() {
    inflate(getContext(), R.layout.colorpicker_layout_preset_picker, this);

    adapter = new PresetColorAdapter(DEFAULT_PRESETS).withListener(this);

    RecyclerView recycler = findViewById(R.id.recycler);
    recycler.setHasFixedSize(true);

    RecyclerView.ItemAnimator animator = recycler.getItemAnimator();
    if (animator instanceof SimpleItemAnimator)
        ((SimpleItemAnimator) animator).setSupportsChangeAnimations(false);

    recycler.setLayoutManager(new GridLayoutManager(getContext(), 4));
    recycler.setAdapter(adapter);
}
 

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    ViewGroup rootView = (ViewGroup) inflater.inflate(R.layout.fragment_pager_page, container, false);

    recyclerView = (RecyclerView) rootView.findViewById(R.id.mainGallery);
    recyclerView.setHasFixedSize(true);
    ((SimpleItemAnimator) recyclerView.getItemAnimator()).setSupportsChangeAnimations(false);
    RecyclerView.LayoutManager layoutManager = getLayoutManager(getContext());
    recyclerView.setLayoutManager(layoutManager);
    emptyView = rootView.findViewById(R.id.emptyListView);
    dividerSize = getResources().getDimensionPixelSize(R.dimen.grid_divider_width);
    addItemDecoration(recyclerView);
    observer = new RecyclerView.AdapterDataObserver() {
        @Override
        public void onChanged() {
            super.onChanged();
            emptyView.setVisibility(recyclerView.getAdapter().getItemCount() == 0 ? View.VISIBLE : View.INVISIBLE);
        }

        @Override
        public void onItemRangeInserted(int positionStart, int itemCount) {
            super.onItemRangeInserted(positionStart, itemCount);
            emptyView.setVisibility(recyclerView.getAdapter().getItemCount() == 0 ? View.VISIBLE : View.INVISIBLE);

        }

        @Override
        public void onItemRangeRemoved(int positionStart, int itemCount) {
            super.onItemRangeRemoved(positionStart, itemCount);
            emptyView.setVisibility(recyclerView.getAdapter().getItemCount() == 0 ? View.VISIBLE : View.INVISIBLE);

        }
    };

    return rootView;
}
 

protected void initRecyclerView(RecyclerView view){
    int numColumns = (getResources().getConfiguration().orientation == Configuration.ORIENTATION_LANDSCAPE) ? 5 : 3;
    view.setLayoutManager(new GridLayoutManager(getActivity(),numColumns));
    view.addItemDecoration(new SpacesItemDecoration(8));
    if (view.getItemAnimator() instanceof SimpleItemAnimator) {
        ((SimpleItemAnimator) view.getItemAnimator()).setSupportsChangeAnimations(false);
    }
}
 

protected void initRecyclerView(RecyclerView view){
    view.addItemDecoration(new BoxItemDividerDecoration(getResources()));
    view.addItemDecoration(new FooterDecoration(getResources()));
    view.setLayoutManager(new LinearLayoutManager(getActivity()));
    if (view.getItemAnimator() instanceof SimpleItemAnimator) {
        ((SimpleItemAnimator) view.getItemAnimator()).setSupportsChangeAnimations(false);
    }
}
 

/**
 * 设置是否支持移除动画
 *
 * @param supportsChangeAnimations 是否支持
 * @see Adapter#notifyItemChanged(int)
 * @see Adapter#notifyItemRangeChanged(int, int)
 */
public void setSupportsChangeAnimations(boolean supportsChangeAnimations) {
    ItemAnimator animator = getItemAnimator();
    if (animator == null)
        return;
    if (supportsChangeAnimations) {
        animator.setChangeDuration(mChangeDuration);
    } else {
        animator.setChangeDuration(0);
    }
    if (animator instanceof SimpleItemAnimator) {
        ((SimpleItemAnimator) animator).setSupportsChangeAnimations(supportsChangeAnimations);
    }
}
 

private void setupRecyclerView() {
  promotionsList.setAdapter(promotionsAdapter);
  promotionsList.setLayoutManager(
      new LinearLayoutManager(getContext(), RecyclerView.VERTICAL, false));
  RecyclerView.ItemAnimator animator = promotionsList.getItemAnimator();
  if (animator instanceof SimpleItemAnimator) {
    ((SimpleItemAnimator) animator).setSupportsChangeAnimations(false);
  }
}
 

@Nullable
@Override
public View onCreateView(
    LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {

  View view = inflater.inflate(R.layout.fragment_manage_devices, container, false);

  RecyclerView recyclerView = (RecyclerView) view.findViewById(R.id.recycler);
  HeaderAdapter myHeader = new HeaderAdapter(R.layout.device_header, R.string.my_devices);
  HeaderAdapter availableHeader =
      new HeaderAdapter(R.layout.device_header, R.string.available_devices);
  if (savedInstanceState != null) {
    myDevices.onRestoreInstanceState(savedInstanceState.getBundle(KEY_MY_DEVICES));
    availableDevices.onRestoreInstanceState(savedInstanceState.getBundle(KEY_AVAILABLE_DEVICES));
  }
  CompositeRecyclerAdapter adapter =
      new CompositeRecyclerAdapter(myHeader, myDevices, availableHeader, availableDevices);
  adapter.setHasStableIds(true);
  recyclerView.setAdapter(adapter);
  recyclerView.setLayoutManager(
      new LinearLayoutManager(getActivity(), LinearLayoutManager.VERTICAL, false));
  // Don't animate on change: https://code.google.com/p/android/issues/detail?id=204277.
  SimpleItemAnimator animator = new DefaultItemAnimator();
  animator.setSupportsChangeAnimations(false);
  recyclerView.setItemAnimator(animator);
  return view;
}
 

private void initViews() {
    ActionBar actionBar = getSupportActionBar();
    if (actionBar != null) {
        actionBar.setDisplayHomeAsUpEnabled(true);
    }
    adapter = new MaterialAboutListAdapter(getViewTypeManager());
    recyclerView.setLayoutManager(new LinearLayoutManager(this));
    recyclerView.setAdapter(adapter);
    RecyclerView.ItemAnimator animator = recyclerView.getItemAnimator();
    if (animator instanceof SimpleItemAnimator) {
        ((SimpleItemAnimator) animator).setSupportsChangeAnimations(false);
    }
}
 

@NonNull
private RecyclerView buildRootView() {
    RecyclerView recyclerView = new RecyclerView(context);
    /**
     * disable multi touch event to prevent terrible data set error when calculate list.
     */
    recyclerView.setMotionEventSplittingEnabled(false);
    ((SimpleItemAnimator) recyclerView.getItemAnimator()).setSupportsChangeAnimations(false);

    recyclerView.setLayoutManager(new LinearLayoutManager(context));
    adapter = new TreeViewAdapter(context, root, baseNodeViewFactory);
    adapter.setTreeView(this);
    recyclerView.setAdapter(adapter);
    return recyclerView;
}
 

private View buildDialogView() {
    View view = LayoutInflater.from(mContext).inflate(R.layout.dialog_color_picker, null);

    RecyclerView recyclerView = view.findViewById(R.id.items);
    recyclerView.setLayoutManager(new GridLayoutManager(mContext, 4));
    recyclerView.setAdapter(new ColorListAdapter(this));
    ((SimpleItemAnimator) recyclerView.getItemAnimator()).setSupportsChangeAnimations(false);

    return view;
}
 

@SuppressWarnings("ConstantConditions")
@Override
protected void onCreate(@Nullable final Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_scanner);
    ButterKnife.bind(this);

    final Toolbar toolbar = findViewById(R.id.toolbar);
    setSupportActionBar(toolbar);
    getSupportActionBar().setTitle(R.string.app_name);

    // Create view model containing utility methods for scanning
    mScannerViewModel = new ViewModelProvider(this, mViewModelFactory)
            .get(ScannerViewModel.class);
    mScannerViewModel.getScannerState().observe(this, this::startScan);

    // Configure the recycler view
    final RecyclerView recyclerView = findViewById(R.id.recycler_view_ble_devices);
    recyclerView.setLayoutManager(new LinearLayoutManager(this));
    final DividerItemDecoration dividerItemDecoration =
            new DividerItemDecoration(recyclerView.getContext(), DividerItemDecoration.VERTICAL);
    recyclerView.addItemDecoration(dividerItemDecoration);
    ((SimpleItemAnimator) recyclerView.getItemAnimator()).setSupportsChangeAnimations(false);
    final DevicesAdapter adapter =
            new DevicesAdapter(this, mScannerViewModel.getDevices());
    adapter.setOnItemClickListener(this);
    recyclerView.setAdapter(adapter);
}
 

@Override
protected void onCreate(@Nullable final Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_scanner);
    ButterKnife.bind(this);

    // Create view model containing utility methods for scanning
    mViewModel = new ViewModelProvider(this, mViewModelFactory).get(ScannerViewModel.class);

    final Toolbar toolbar = findViewById(R.id.toolbar);
    toolbar.setTitle(R.string.title_scanner);
    setSupportActionBar(toolbar);
    //noinspection ConstantConditions
    getSupportActionBar().setDisplayHomeAsUpEnabled(true);

    if (getIntent() != null) {
        mScanWithProxyService = getIntent().getBooleanExtra(Utils.EXTRA_DATA_PROVISIONING_SERVICE, true);
        if (mScanWithProxyService) {
            getSupportActionBar().setSubtitle(R.string.sub_title_scanning_nodes);
        } else {
            getSupportActionBar().setSubtitle(R.string.sub_title_scanning_proxy_node);
        }
    }

    // Configure the recycler view
    final RecyclerView recyclerViewDevices = findViewById(R.id.recycler_view_ble_devices);
    recyclerViewDevices.setLayoutManager(new LinearLayoutManager(this));
    final DividerItemDecoration dividerItemDecoration = new DividerItemDecoration(recyclerViewDevices.getContext(), DividerItemDecoration.VERTICAL);
    recyclerViewDevices.addItemDecoration(dividerItemDecoration);

    final SimpleItemAnimator itemAnimator = (SimpleItemAnimator) recyclerViewDevices.getItemAnimator();
    if (itemAnimator != null) itemAnimator.setSupportsChangeAnimations(false);

    final DevicesAdapter adapter = new DevicesAdapter(this, mViewModel.getScannerRepository().getScannerResults());
    adapter.setOnItemClickListener(this);
    recyclerViewDevices.setAdapter(adapter);

    mViewModel.getScannerRepository().getScannerState().observe(this, this::startScan);
}
 

public TrackersListAdapter(Context c,
                           RecyclerView root,
                           Integer appUid) {
    recyclerView = root;
    mContext = c;
    mAppUid = appUid;

    // Removes blinks
    ((SimpleItemAnimator) recyclerView.getItemAnimator()).setSupportsChangeAnimations(false);
}
 

private void initPhotos() {
    rvPhotos = (RecyclerView) findViewById(R.id.rv_photos);
    ((SimpleItemAnimator) rvPhotos.getItemAnimator()).setSupportsChangeAnimations(false);//去除item更新的闪光

    photoList.addAll(albumModel.getCurrAlbumItemPhotos(0));
    photosAdapter = new PuzzleSelectorAdapter(this, photoList, this);

    int columns = getResources().getInteger(R.integer.photos_columns_easy_photos);

    GridLayoutManager gridLayoutManager = new GridLayoutManager(this, columns);
    rvPhotos.setLayoutManager(gridLayoutManager);
    rvPhotos.setAdapter(photosAdapter);
}
 

/**
 * 动态添加多图裁剪底部预览图片列表
 */
private void addPhotoRecyclerView() {
    boolean isMultipleSkipCrop = getIntent().getBooleanExtra(UCrop.Options.EXTRA_SKIP_MULTIPLE_CROP, true);
    mRecyclerView = new RecyclerView(this);
    mRecyclerView.setId(R.id.id_recycler);
    mRecyclerView.setBackgroundColor(ContextCompat.getColor(this, R.color.ucrop_color_widget_background));
    RelativeLayout.LayoutParams lp =
            new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT,
                    ScreenUtils.dip2px(this, 80));
    mRecyclerView.setLayoutParams(lp);
    LinearLayoutManager mLayoutManager = new LinearLayoutManager(this);
    mLayoutManager.setOrientation(LinearLayoutManager.HORIZONTAL);
    if (isAnimation) {
        LayoutAnimationController animation = AnimationUtils
                .loadLayoutAnimation(getApplicationContext(), R.anim.ucrop_layout_animation_fall_down);
        mRecyclerView.setLayoutAnimation(animation);
    }
    mRecyclerView.setLayoutManager(mLayoutManager);
    // 解决调用 notifyItemChanged 闪烁问题,取消默认动画
    ((SimpleItemAnimator) mRecyclerView.getItemAnimator())
            .setSupportsChangeAnimations(false);
    resetCutDataStatus();
    list.get(cutIndex).setCut(true);
    mAdapter = new PicturePhotoGalleryAdapter(this, list);
    mRecyclerView.setAdapter(mAdapter);
    if (isMultipleSkipCrop) {
        mAdapter.setOnItemClickListener(new PicturePhotoGalleryAdapter.OnItemClickListener() {
            @Override
            public void onItemClick(int position, View view) {
                CutInfo cutInfo = list.get(position);
                if (MimeType.isHasVideo(cutInfo.getMimeType())) {
                    return;
                }
                if (cutIndex == position) {
                    return;
                }
                resetLastCropStatus();
                cutIndex = position;
                oldCutIndex = cutIndex;
                resetCutData();
            }
        });
    }
    uCropPhotoBox.addView(mRecyclerView);
    changeLayoutParams(mShowBottomControls);

    // 裁剪框居于RecyclerView之上
    FrameLayout uCropFrame = findViewById(R.id.ucrop_frame);
    ((RelativeLayout.LayoutParams) uCropFrame.getLayoutParams())
            .addRule(RelativeLayout.ABOVE, R.id.id_recycler);

    // RecyclerView居于BottomControls之上
    ((RelativeLayout.LayoutParams) mRecyclerView.getLayoutParams())
            .addRule(RelativeLayout.ABOVE, R.id.controls_wrapper);
}
 

@Override
protected void initWidgets() {
    super.initWidgets();
    container = findViewById(R.id.container);
    titleViewBg = findViewById(R.id.titleViewBg);
    mIvPictureLeftBack = findViewById(R.id.pictureLeftBack);
    mTvPictureTitle = findViewById(R.id.picture_title);
    mTvPictureRight = findViewById(R.id.picture_right);
    mTvPictureOk = findViewById(R.id.picture_tv_ok);
    mCbOriginal = findViewById(R.id.cb_original);
    mIvArrow = findViewById(R.id.ivArrow);
    mTvPicturePreview = findViewById(R.id.picture_id_preview);
    mTvPictureImgNum = findViewById(R.id.picture_tvMediaNum);
    mRecyclerView = findViewById(R.id.picture_recycler);
    mBottomLayout = findViewById(R.id.rl_bottom);
    mTvEmpty = findViewById(R.id.tv_empty);
    isNumComplete(numComplete);
    if (!numComplete) {
        animation = AnimationUtils.loadAnimation(this, R.anim.picture_anim_modal_in);
    }
    mTvPicturePreview.setOnClickListener(this);
    if (config.isAutomaticTitleRecyclerTop) {
        titleViewBg.setOnClickListener(this);
    }
    mTvPicturePreview.setVisibility(config.chooseMode != PictureMimeType.ofAudio() && config.enablePreview ? View.VISIBLE : View.GONE);
    mBottomLayout.setVisibility(config.selectionMode == PictureConfig.SINGLE
            && config.isSingleDirectReturn ? View.GONE : View.VISIBLE);
    mIvPictureLeftBack.setOnClickListener(this);
    mTvPictureRight.setOnClickListener(this);
    mTvPictureOk.setOnClickListener(this);
    mTvPictureImgNum.setOnClickListener(this);
    mTvPictureTitle.setOnClickListener(this);
    mIvArrow.setOnClickListener(this);
    String title = config.chooseMode == PictureMimeType.ofAudio() ?
            getString(R.string.picture_all_audio) : getString(R.string.picture_camera_roll);
    mTvPictureTitle.setText(title);
    mTvPictureTitle.setTag(R.id.view_tag, -1);
    folderWindow = new FolderPopWindow(this, config);
    folderWindow.setArrowImageView(mIvArrow);
    folderWindow.setOnAlbumItemClickListener(this);
    mRecyclerView.addItemDecoration(new GridSpacingItemDecoration(config.imageSpanCount,
            ScreenUtils.dip2px(this, 2), false));
    mRecyclerView.setLayoutManager(new GridLayoutManager(getContext(), config.imageSpanCount));
    if (!config.isPageStrategy) {
        mRecyclerView.setHasFixedSize(true);
    } else {
        mRecyclerView.setReachBottomRow(RecyclerPreloadView.BOTTOM_PRELOAD);
        mRecyclerView.setOnRecyclerViewPreloadListener(PictureSelectorActivity.this);
    }
    RecyclerView.ItemAnimator itemAnimator = mRecyclerView.getItemAnimator();
    if (itemAnimator != null) {
        ((SimpleItemAnimator) itemAnimator).setSupportsChangeAnimations(false);
        mRecyclerView.setItemAnimator(null);
    }
    loadAllMediaData();
    mTvEmpty.setText(config.chooseMode == PictureMimeType.ofAudio() ?
            getString(R.string.picture_audio_empty)
            : getString(R.string.picture_empty));
    StringUtils.tempTextFont(mTvEmpty, config.chooseMode);
    mAdapter = new PictureImageGridAdapter(getContext(), config);
    mAdapter.setOnPhotoSelectChangedListener(this);

    switch (config.animationMode) {
        case AnimationType
                .ALPHA_IN_ANIMATION:
            mRecyclerView.setAdapter(new AlphaInAnimationAdapter(mAdapter));
            break;
        case AnimationType
                .SLIDE_IN_BOTTOM_ANIMATION:
            mRecyclerView.setAdapter(new SlideInBottomAnimationAdapter(mAdapter));
            break;
        default:
            mRecyclerView.setAdapter(mAdapter);
            break;
    }
    if (config.isOriginalControl) {
        mCbOriginal.setVisibility(View.VISIBLE);
        mCbOriginal.setChecked(config.isCheckOriginalImage);
        mCbOriginal.setOnCheckedChangeListener((buttonView, isChecked) -> {
            config.isCheckOriginalImage = isChecked;
        });
    }
}
 

@Override
public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    super.onCreateView(inflater, container, savedInstanceState);
    final Bundle bundle = getArguments();
    final ThreadFragmentArgs arguments = ThreadFragmentArgs.fromBundle(bundle == null ? new Bundle() : bundle);
    final String threadId = arguments.getThread();
    final String label = arguments.getLabel();
    final boolean triggerRead = !Arrays.asList(arguments.getKeywords()).contains(Keyword.SEEN);
    final ViewModelProvider viewModelProvider = new ViewModelProvider(
            getViewModelStore(),
            new ThreadViewModelFactory(
                    requireActivity().getApplication(),
                    getLttrsViewModel().getAccount(),
                    threadId,
                    label,
                    triggerRead
            )
    );
    threadViewModel = viewModelProvider.get(ThreadViewModel.class);
    binding = DataBindingUtil.inflate(inflater, R.layout.fragment_thread, container, false);

    //do we want a custom layout manager that does *NOT* remember scroll position when more
    //than one item is expanded. with variable sized items this might be annoying

    threadAdapter = new ThreadAdapter(threadViewModel.expandedItems);
    threadAdapter.setSubjectWithImportance(SubjectWithImportance.of(
            threadId,
            Strings.emptyToNull(arguments.getSubject()),
            arguments.getImportant()
    ));

    //the default change animation causes UI glitches when expanding or collapsing item
    //for now it's better to just disable it. In the future we may write our own animator
    RecyclerView.ItemAnimator itemAnimator = binding.list.getItemAnimator();
    if (itemAnimator instanceof SimpleItemAnimator) {
        ((SimpleItemAnimator) itemAnimator).setSupportsChangeAnimations(false);
    }

    binding.list.setAdapter(threadAdapter);
    threadViewModel.getEmails().observe(getViewLifecycleOwner(), this::onEmailsChanged);
    threadViewModel.getSubjectWithImportance().observe(getViewLifecycleOwner(), threadAdapter::setSubjectWithImportance);
    threadViewModel.getFlagged().observe(getViewLifecycleOwner(), threadAdapter::setFlagged);
    threadViewModel.getMenuConfiguration().observe(getViewLifecycleOwner(), menuConfiguration -> {
        this.menuConfiguration = menuConfiguration;
        requireActivity().invalidateOptionsMenu();
    });
    threadAdapter.setOnFlaggedToggledListener(this);
    threadAdapter.setOnComposeActionTriggeredListener(this);
    threadViewModel.getThreadViewRedirect().observe(getViewLifecycleOwner(), this::onThreadViewRedirect);
    return binding.getRoot();
}
 

@Nullable
@Override
public View onCreateView3(LayoutInflater inflater,
        @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.scene_download, container, false);

    View content = ViewUtils.$$(view, R.id.content);
    mRecyclerView = (EasyRecyclerView) ViewUtils.$$(content, R.id.recycler_view);
    FastScroller fastScroller = (FastScroller) ViewUtils.$$(content, R.id.fast_scroller);
    mFabLayout = (FabLayout) ViewUtils.$$(view, R.id.fab_layout);
    TextView tip = (TextView) ViewUtils.$$(view, R.id.tip);
    mViewTransition = new ViewTransition(content, tip);

    Context context = getContext2();
    AssertUtils.assertNotNull(content);
    Resources resources = context.getResources();

    Drawable drawable = DrawableManager.getVectorDrawable(context, R.drawable.big_download);
    drawable.setBounds(0, 0, drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight());
    tip.setCompoundDrawables(null, drawable, null, null);

    mAdapter = new DownloadAdapter();
    mAdapter.setHasStableIds(true);
    mRecyclerView.setAdapter(mAdapter);
    mLayoutManager = new AutoStaggeredGridLayoutManager(0, StaggeredGridLayoutManager.VERTICAL);
    mLayoutManager.setColumnSize(resources.getDimensionPixelOffset(Settings.getDetailSizeResId()));
    mLayoutManager.setStrategy(AutoStaggeredGridLayoutManager.STRATEGY_MIN_SIZE);
    mRecyclerView.setLayoutManager(mLayoutManager);
    mRecyclerView.setSelector(Ripple.generateRippleDrawable(context, !AttrResources.getAttrBoolean(context, R.attr.isLightTheme), new ColorDrawable(Color.TRANSPARENT)));
    mRecyclerView.setDrawSelectorOnTop(true);
    mRecyclerView.setClipToPadding(false);
    mRecyclerView.setOnItemClickListener(this);
    mRecyclerView.setOnItemLongClickListener(this);
    mRecyclerView.setChoiceMode(EasyRecyclerView.CHOICE_MODE_MULTIPLE_CUSTOM);
    mRecyclerView.setCustomCheckedListener(new DownloadChoiceListener());
    // Cancel change animation
    RecyclerView.ItemAnimator itemAnimator = mRecyclerView.getItemAnimator();
    if (itemAnimator instanceof SimpleItemAnimator) {
        ((SimpleItemAnimator) itemAnimator).setSupportsChangeAnimations(false);
    }
    int interval = resources.getDimensionPixelOffset(R.dimen.gallery_list_interval);
    int paddingH = resources.getDimensionPixelOffset(R.dimen.gallery_list_margin_h);
    int paddingV = resources.getDimensionPixelOffset(R.dimen.gallery_list_margin_v);
    MarginItemDecoration decoration = new MarginItemDecoration(interval, paddingH, paddingV, paddingH, paddingV);
    mRecyclerView.addItemDecoration(decoration);
    decoration.applyPaddings(mRecyclerView);
    if (mInitPosition >= 0) {
        mRecyclerView.scrollToPosition(mInitPosition);
        mInitPosition = -1;
    }

    fastScroller.attachToRecyclerView(mRecyclerView);
    HandlerDrawable handlerDrawable = new HandlerDrawable();
    handlerDrawable.setColor(AttrResources.getAttrColor(context, R.attr.widgetColorThemeAccent));
    fastScroller.setHandlerDrawable(handlerDrawable);
    fastScroller.setOnDragHandlerListener(this);

    mFabLayout.setExpanded(false, false);
    mFabLayout.setHidePrimaryFab(true);
    mFabLayout.setAutoCancel(false);
    mFabLayout.setOnClickFabListener(this);
    addAboveSnackView(mFabLayout);

    updateView();

    guide();

    return view;
}
 

@Nullable
@Override
public View onCreateView3(LayoutInflater inflater,
        @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.scene_download, container, false);

    View content = ViewUtils.$$(view, R.id.content);
    mRecyclerView = (EasyRecyclerView) ViewUtils.$$(content, R.id.recycler_view);
    FastScroller fastScroller = (FastScroller) ViewUtils.$$(content, R.id.fast_scroller);
    mFabLayout = (FabLayout) ViewUtils.$$(view, R.id.fab_layout);
    TextView tip = (TextView) ViewUtils.$$(view, R.id.tip);
    mViewTransition = new ViewTransition(content, tip);

    Context context = getContext2();
    AssertUtils.assertNotNull(content);
    Resources resources = context.getResources();

    Drawable drawable = DrawableManager.getVectorDrawable(context, R.drawable.big_download);
    drawable.setBounds(0, 0, drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight());
    tip.setCompoundDrawables(null, drawable, null, null);

    mAdapter = new DownloadAdapter();
    mAdapter.setHasStableIds(true);
    mRecyclerView.setAdapter(mAdapter);
    mLayoutManager = new AutoStaggeredGridLayoutManager(0, StaggeredGridLayoutManager.VERTICAL);
    mLayoutManager.setColumnSize(resources.getDimensionPixelOffset(Settings.getDetailSizeResId()));
    mLayoutManager.setStrategy(AutoStaggeredGridLayoutManager.STRATEGY_MIN_SIZE);
    mRecyclerView.setLayoutManager(mLayoutManager);
    mRecyclerView.setSelector(Ripple.generateRippleDrawable(context, !AttrResources.getAttrBoolean(context, R.attr.isLightTheme), new ColorDrawable(Color.TRANSPARENT)));
    mRecyclerView.setDrawSelectorOnTop(true);
    mRecyclerView.setClipToPadding(false);
    mRecyclerView.setOnItemClickListener(this);
    mRecyclerView.setOnItemLongClickListener(this);
    mRecyclerView.setChoiceMode(EasyRecyclerView.CHOICE_MODE_MULTIPLE_CUSTOM);
    mRecyclerView.setCustomCheckedListener(new DownloadChoiceListener());
    // Cancel change animation
    RecyclerView.ItemAnimator itemAnimator = mRecyclerView.getItemAnimator();
    if (itemAnimator instanceof SimpleItemAnimator) {
        ((SimpleItemAnimator) itemAnimator).setSupportsChangeAnimations(false);
    }
    int interval = resources.getDimensionPixelOffset(R.dimen.gallery_list_interval);
    int paddingH = resources.getDimensionPixelOffset(R.dimen.gallery_list_margin_h);
    int paddingV = resources.getDimensionPixelOffset(R.dimen.gallery_list_margin_v);
    MarginItemDecoration decoration = new MarginItemDecoration(interval, paddingH, paddingV, paddingH, paddingV);
    mRecyclerView.addItemDecoration(decoration);
    decoration.applyPaddings(mRecyclerView);
    if (mInitPosition >= 0) {
        mRecyclerView.scrollToPosition(mInitPosition);
        mInitPosition = -1;
    }

    fastScroller.attachToRecyclerView(mRecyclerView);
    HandlerDrawable handlerDrawable = new HandlerDrawable();
    handlerDrawable.setColor(AttrResources.getAttrColor(context, R.attr.widgetColorThemeAccent));
    fastScroller.setHandlerDrawable(handlerDrawable);
    fastScroller.setOnDragHandlerListener(this);

    mFabLayout.setExpanded(false, false);
    mFabLayout.setHidePrimaryFab(true);
    mFabLayout.setAutoCancel(false);
    mFabLayout.setOnClickFabListener(this);
    addAboveSnackView(mFabLayout);

    updateView();

    guide();

    return view;
}
 

private void initView() {

        if (albumModel.getAlbumItems().isEmpty()) {
            Toast.makeText(this, R.string.no_photos_easy_photos, Toast.LENGTH_LONG).show();
            if (Setting.isShowCamera) {
                launchCamera(Code.REQUEST_CAMERA);
            } else {
                finish();
            }
            return;
        }

        EasyPhotos.setAdListener(this);
        if (Setting.hasPhotosAd()) {
            findViewById(R.id.m_tool_bar_bottom_line).setVisibility(View.GONE);
        }
        ivCamera = findViewById(R.id.fab_camera);
        if (Setting.isShowCamera && Setting.isBottomRightCamera()) {
            ivCamera.setVisibility(View.VISIBLE);
        }
        if (!Setting.showPuzzleMenu) {
            findViewById(R.id.tv_puzzle).setVisibility(View.GONE);
        }
        mSecondMenus = findViewById(R.id.m_second_level_menu);
        int columns = getResources().getInteger(R.integer.photos_columns_easy_photos);
        tvAlbumItems = findViewById(R.id.tv_album_items);
        tvAlbumItems.setText(albumModel.getAlbumItems().get(0).name);
        tvDone = findViewById(R.id.tv_done);
        rvPhotos = findViewById(R.id.rv_photos);
        ((SimpleItemAnimator) rvPhotos.getItemAnimator()).setSupportsChangeAnimations(false);
        //去除item更新的闪光
        photoList.clear();
        photoList.addAll(albumModel.getCurrAlbumItemPhotos(0));
        int index = 0;
        if (Setting.hasPhotosAd()) {
            photoList.add(index, Setting.photosAdView);
        }
        if (Setting.isShowCamera && !Setting.isBottomRightCamera()) {
            if (Setting.hasPhotosAd()) index = 1;
            photoList.add(index, null);
        }
        photosAdapter = new PhotosAdapter(this, photoList, this);

        gridLayoutManager = new GridLayoutManager(this, columns);
        if (Setting.hasPhotosAd()) {
            gridLayoutManager.setSpanSizeLookup(new GridLayoutManager.SpanSizeLookup() {
                @Override
                public int getSpanSize(int position) {
                    if (position == 0) {
                        return gridLayoutManager.getSpanCount();//独占一行
                    } else {
                        return 1;//只占一行中的一列
                    }
                }
            });
        }
        rvPhotos.setLayoutManager(gridLayoutManager);
        rvPhotos.setAdapter(photosAdapter);
        tvOriginal = findViewById(R.id.tv_original);
        if (Setting.showOriginalMenu) {
            processOriginalMenu();
        } else {
            tvOriginal.setVisibility(View.GONE);
        }
        tvPreview = findViewById(R.id.tv_preview);

        initAlbumItems();
        shouldShowMenuDone();
        setClick(R.id.iv_album_items, R.id.tv_clear, R.id.iv_second_menu, R.id.tv_puzzle);
        setClick(tvAlbumItems, rootViewAlbumItems, tvDone, tvOriginal, tvPreview, ivCamera);
    }