Java Code Examples for androidx.swiperefreshlayout.widget.SwipeRefreshLayout#setEnabled()

@Override
protected void onPreExecute() {
    super.onPreExecute();
    isAlreadyLoading = true;
    if (loadMoreMessages) {
        if (!messageList.contains(null)) {
            messageList.add(null);
        }
        if (recyclerAdapter != null) {
            recyclerAdapter.notifyItemInserted(messageList.size() - 1);
        }
    } else {
        if (swipeRefreshLayoutWeakReference != null) {
            final SwipeRefreshLayout swipeRefreshLayout = swipeRefreshLayoutWeakReference.get();
            if (swipeRefreshLayout != null) {
                swipeRefreshLayout.setEnabled(true);
                swipeRefreshLayout.post(new Runnable() {
                    @Override
                    public void run() {
                        swipeRefreshLayout.setRefreshing(true);
                    }
                });
            }
        }
    }
}
 

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    super.onCreateView(inflater, container, savedInstanceState);
    initToolbar(true, "我的收藏");
    recyclerView = mRootView.findViewById(R.id.recycler_view);
    recyclerView.setHasFixedSize(true);
    SwipeRefreshLayout refreshLayout = mRootView.findViewById(R.id.refresh_layout);
    refreshLayout.setEnabled(false);
    String myUid = App.getUid(getActivity());

    //我的收藏
    url = "home.php?mod=space&uid=" + myUid + "&do=favorite&view=me&type=thread&mobile=no";

    datas = new ArrayList<>();
    adapter = new MyStarAdapter(getActivity(), datas);
    adapter.setLongClickListener((v, position) -> {
        int favId = datas.get(position).favId;
        String title = datas.get(position).title;
        new AlertDialog.Builder(getActivity())
                .setTitle("取消收藏")
                .setMessage(title)
                .setPositiveButton("取消收藏", (dialog, which) -> unStarPost(favId, position))
                .setNegativeButton("关闭", null)
                .setCancelable(true)
                .create()
                .show();
    });

    RecyclerView.LayoutManager layoutManager = new LinearLayoutManager(getActivity());
    recyclerView.addItemDecoration(new MyListDivider(getActivity(), MyListDivider.VERTICAL));
    recyclerView.addOnScrollListener(new LoadMoreListener((LinearLayoutManager) layoutManager, this, 10));
    recyclerView.setLayoutManager(layoutManager);
    recyclerView.setAdapter(adapter);
    refresh();
    return mRootView;
}
 

@SuppressWarnings({"unchecked", "ConstantConditions"})
private void initializeRecyclerView() {
    // Initialize Adapter and RecyclerView
    // true = it makes use of stableIds, I strongly suggest to implement 'item.hashCode()'
    FlexibleAdapter.useTag("InstagramHeadersAdapter");
    mAdapter = new FlexibleAdapter<>(null, getActivity(), true);
    mAdapter.addListener(getActivity())
            .setAnimationOnForwardScrolling(true)
            .setAnimationOnReverseScrolling(true);
    mRecyclerView = getView().findViewById(R.id.recycler_view);
    mRecyclerView.setLayoutManager(createNewLinearLayoutManager());
    mRecyclerView.setAdapter(mAdapter);
    mRecyclerView.setHasFixedSize(true); //Size of RV will not change
    // NOTE: Use default item animator 'canReuseUpdatedViewHolder()' will return true if
    // a Payload is provided. FlexibleAdapter is actually sending Payloads onItemChange.
    mRecyclerView.setItemAnimator(new DefaultItemAnimator());
    // 24dpi as empty space between sections (each post)
    mRecyclerView.addItemDecoration(new FlexibleItemDecoration(getActivity())
            .withSectionGapOffset(24));

    // New empty views handling
    EmptyViewHelper.create(mAdapter, getView().findViewById(R.id.empty_view));

    mAdapter.setDisplayHeadersAtStartUp(true) //Show Headers at startUp!
            .setStickyHeaders(true) //Make headers sticky
            // Endless scroll with 1 item threshold
            .setLoadingMoreAtStartUp(true)
            .setEndlessScrollListener(this, new ProgressItem())
            .setEndlessScrollThreshold(1); //Default=1

    SwipeRefreshLayout swipeRefreshLayout = getView().findViewById(R.id.swipeRefreshLayout);
    swipeRefreshLayout.setEnabled(true);
    mListener.onFragmentChange(swipeRefreshLayout, mRecyclerView, Mode.IDLE);
}
 

@SuppressWarnings({"ConstantConditions", "NullableProblems"})
private void initializeRecyclerView(Bundle savedInstanceState) {
    // Initialize Adapter and RecyclerView
    // ExampleAdapter makes use of stableIds, I strongly suggest to implement 'item.hashCode()'
    FlexibleAdapter.useTag("HolderSectionsAdapter");
    mAdapter = new ExampleAdapter(DatabaseService.getInstance().getDatabaseList(), getActivity());

    mRecyclerView = getView().findViewById(R.id.recycler_view);
    mRecyclerView.setLayoutManager(createNewLinearLayoutManager());
    mRecyclerView.setAdapter(mAdapter);
    mRecyclerView.setHasFixedSize(true); //Size of RV will not change
    // NOTE: Use default item animator 'canReuseUpdatedViewHolder()' will return true if
    // a Payload is provided. FlexibleAdapter is actually sending Payloads onItemChange.
    mRecyclerView.setItemAnimator(new DefaultItemAnimator());

    // Add FastScroll to the RecyclerView, after the Adapter has been attached the RecyclerView!!!
    FastScroller fastScroller = getView().findViewById(R.id.fast_scroller);
    fastScroller.addOnScrollStateChangeListener((MainActivity) getActivity());
    mAdapter.setFastScroller(fastScroller);

    mAdapter.setDisplayHeadersAtStartUp(true)
            .setStickyHeaders(true)
            .setOnlyEntryAnimation(true);

    SwipeRefreshLayout swipeRefreshLayout = getView().findViewById(R.id.swipeRefreshLayout);
    swipeRefreshLayout.setEnabled(true);
    mListener.onFragmentChange(swipeRefreshLayout, mRecyclerView, Mode.IDLE);

    // Add 1 Scrollable Header
    mAdapter.addScrollableHeader(new ScrollableUseCaseItem(
            getString(R.string.model_holders_use_case_title),
            getString(R.string.model_holders_use_case_description)));
}
 

@SuppressWarnings({"ConstantConditions", "NullableProblems"})
private void initializeRecyclerView(Bundle savedInstanceState) {
    FlexibleAdapter.useTag("AnimatorsAdapter");
    mAdapter = new ExampleAdapter(DatabaseService.getInstance().getDatabaseList(), getActivity());
    mAdapter.expandItemsAtStartUp()
            .setAutoCollapseOnExpand(false)
            .setAutoScrollOnExpand(true)
            .setOnlyEntryAnimation(false)
            .setAnimationEntryStep(true) //In Overall, watch the effect at initial loading when Grid Layout is set
            .setAnimationOnForwardScrolling(DatabaseConfiguration.animateOnForwardScrolling)
            .setAnimationOnReverseScrolling(true)
            .setAnimationInterpolator(new DecelerateInterpolator())
            .setAnimationDuration(300L);
    mRecyclerView = getView().findViewById(R.id.recycler_view);
    mRecyclerView.setLayoutManager(createNewLinearLayoutManager());
    mRecyclerView.setAdapter(mAdapter);
    //mRecyclerView.setHasFixedSize(true); //Size of RV will not change

    // NOTE: Custom item animators inherit 'canReuseUpdatedViewHolder()' from Default Item
    // Animator. It will return true if a Payload is provided. FlexibleAdapter is actually
    // sending Payloads onItemChange notifications.
    mRecyclerView.setItemAnimator(new FlexibleItemAnimator());
    initializeSpinnerItemAnimators();
    initializeSpinnerScrollAnimators();

    mAdapter.setSwipeEnabled(true)
            .getItemTouchHelperCallback()
            .setSwipeFlags(ItemTouchHelper.RIGHT); //Enable swipe

    SwipeRefreshLayout swipeRefreshLayout = getView().findViewById(R.id.swipeRefreshLayout);
    swipeRefreshLayout.setEnabled(false);
    mListener.onFragmentChange(swipeRefreshLayout, mRecyclerView, Mode.IDLE);

    // Add 1 Scrollable Header
    mAdapter.addScrollableHeader(new ScrollableUseCaseItem(
            getString(R.string.animator_use_case_title),
            getString(R.string.animator_use_case_description)));
}
 

@SuppressWarnings({"ConstantConditions", "NullableProblems"})
private void initializeRecyclerView(Bundle savedInstanceState) {
    // Initialize Adapter and RecyclerView
    // ExampleAdapter makes use of stableIds, I strongly suggest to implement 'item.hashCode()'
    FlexibleAdapter.useTag("StaggeredLayoutAdapter");
    mAdapter = new FlexibleAdapter<>(DatabaseService.getInstance().getDatabaseList(), getActivity());
    mRecyclerView = getView().findViewById(R.id.recycler_view);
    // Customize the speed of the smooth scroll.
    // NOTE: Every time you change this value you MUST recreate the LayoutManager instance
    // and to assign it again to the RecyclerView!
    TopSnappedSmoothScroller.MILLISECONDS_PER_INCH = 33f; //Make faster the smooth scroll
    mRecyclerView.setLayoutManager(createNewStaggeredGridLayoutManager());
    // This value is restored to 100f (default) right here, because it is used in the
    // constructor by Android. If we don't change it now, others LayoutManager will be
    // impacted too by the above modification!
    TopSnappedSmoothScroller.MILLISECONDS_PER_INCH = 100f;

    mRecyclerView.setAdapter(mAdapter);
    mRecyclerView.setHasFixedSize(true); //Size of RV will not change
    // NOTE: Use default item animator 'canReuseUpdatedViewHolder()' will return true if
    // a Payload is provided. FlexibleAdapter is actually sending Payloads onItemChange.
    mRecyclerView.setItemAnimator(new DefaultItemAnimator());
    mRecyclerView.addItemDecoration(new FlexibleItemDecoration(getActivity())
            .addItemViewType(R.layout.recycler_staggered_item, 8)
            .withEdge(true));

    mAdapter.setDisplayHeadersAtStartUp(true) //Show Headers at startUp!
            .setNotifyMoveOfFilteredItems(true)
            .setPermanentDelete(true) //Default=true
            .setOnlyEntryAnimation(true);

    SwipeRefreshLayout swipeRefreshLayout = getView().findViewById(R.id.swipeRefreshLayout);
    swipeRefreshLayout.setEnabled(true);
    mListener.onFragmentChange(swipeRefreshLayout, mRecyclerView, Mode.IDLE);

    // Add 1 Scrollable Header
    mAdapter.addScrollableHeader(new ScrollableUseCaseItem(
            getString(R.string.staggered_use_case_title),
            getString(R.string.staggered_use_case_description)));
}
 

@SuppressWarnings({"ConstantConditions", "NullableProblems"})
private void initializeRecyclerView(Bundle savedInstanceState) {
    // Initialize Adapter and RecyclerView
    FlexibleAdapter.useTag("DataBindingAdapter");
    mAdapter = new BindingFlexibleAdapter<>(getActivity(), true);
    mAdapter.setAnimationOnForwardScrolling(DatabaseConfiguration.animateOnForwardScrolling);
    mRecyclerView = getView().findViewById(R.id.recycler_view);
    mRecyclerView.setLayoutManager(createNewLinearLayoutManager());
    mRecyclerView.setAdapter(mAdapter);
    mRecyclerView.setHasFixedSize(true); //Size of RV will not change
    // NOTE: Use default item animator 'canReuseUpdatedViewHolder()' will return true if
    // a Payload is provided. FlexibleAdapter is actually sending Payloads onItemChange.
    mRecyclerView.setItemAnimator(new GarageDoorItemAnimator());

    // Add FastScroll to the RecyclerView, after the Adapter has been attached the RecyclerView!!!
    FastScroller fastScroller = getView().findViewById(R.id.fast_scroller);
    mAdapter.setFastScroller(fastScroller);

    // New empty views handling, to set after FastScroller
    EmptyViewHelper.create(mAdapter,
            getView().findViewById(R.id.empty_view),
            getView().findViewById(R.id.filter_view));

    mAdapter.setLongPressDragEnabled(true)
            .setHandleDragEnabled(true)
            .setSwipeEnabled(true)
            .setDisplayHeadersAtStartUp(true)
            .setStickyHeaders(true);

    SwipeRefreshLayout swipeRefreshLayout = getView().findViewById(R.id.swipeRefreshLayout);
    swipeRefreshLayout.setEnabled(true);
    mListener.onFragmentChange(swipeRefreshLayout, mRecyclerView, Mode.IDLE);

    mAdapter.addScrollableHeaderWithDelay(new ScrollableUseCaseItem(
            getString(R.string.databinding_use_case_title),
            getString(R.string.databinding_use_case_description)), 500L, false);
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    Thread.currentThread().setUncaughtExceptionHandler(new ExceptionHandler(this));
    setResult(Activity.RESULT_CANCELED);

    fabCreate.setVisibility(View.GONE);
    Toolbar toolbar = binding.activityNotesListView.toolbar;
    SwipeRefreshLayout swipeRefreshLayout = binding.activityNotesListView.swiperefreshlayout;
    toolbar.setTitle(R.string.activity_select_single_note);
    swipeRefreshLayout.setEnabled(false);
    swipeRefreshLayout.setRefreshing(false);
}
 

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    super.onCreateView(inflater, container, savedInstanceState);
    Bundle bundle = getArguments();//从activity传过来的Bundle
    int uid = 0;
    if (bundle != null) {
        uid = bundle.getInt("uid", 0);
        String username = bundle.getString("username", "我的");
        if (uid == 0) {
            title = "我的帖子";
        } else {
            title = username + "的帖子";
        }
    }
    initToolbar(true, title);
    RecyclerView recyclerView = mRootView.findViewById(R.id.recycler_view);
    recyclerView.setHasFixedSize(true);
    SwipeRefreshLayout refreshLayout = mRootView.findViewById(R.id.refresh_layout);
    refreshLayout.setEnabled(false);
    String myUid = App.getUid(getActivity());

    url = "home.php?mod=space&uid=" + (uid > 0 ? uid : myUid) + "&do=thread&view=me&mobile=2";
    datas = new ArrayList<>();
    adapter = new MyPostsListAdapter(getActivity(), datas);

    LinearLayoutManager layoutManager = new LinearLayoutManager(getActivity());
    recyclerView.addItemDecoration(new MyListDivider(getActivity(), MyListDivider.VERTICAL));
    recyclerView.addOnScrollListener(new LoadMoreListener(layoutManager, this, 10));
    recyclerView.setLayoutManager(layoutManager);
    recyclerView.setAdapter(adapter);
    refresh();
    return mRootView;
}
 

@SuppressWarnings({"ConstantConditions", "NullableProblems"})
private void initializeRecyclerView(Bundle savedInstanceState) {
    // Initialize Adapter and RecyclerView
    // ExampleAdapter makes use of stableIds, I strongly suggest to implement 'item.hashCode()'
    FlexibleAdapter.useTag("ExpandableSectionAdapter");
    mAdapter = new ExampleAdapter(DatabaseService.getInstance().getDatabaseList(), getActivity());
    // OnItemAdd and OnItemRemove listeners
    mAdapter.addListener(this);
    mAdapter.expandItemsAtStartUp()
            .setAutoCollapseOnExpand(false)
            .setAutoScrollOnExpand(true)
            .setAnimateToLimit(Integer.MAX_VALUE) //Size limit = MAX_VALUE will always animate the changes
            .setNotifyMoveOfFilteredItems(true) //When true, filtering on big list is very slow!
            .setAnimationOnForwardScrolling(DatabaseConfiguration.animateOnForwardScrolling)
            .setAnimationOnReverseScrolling(true);
    mRecyclerView = getView().findViewById(R.id.recycler_view);
    mRecyclerView.setLayoutManager(createNewLinearLayoutManager());
    mRecyclerView.setAdapter(mAdapter);
    mRecyclerView.setHasFixedSize(true); //Size of RV will not change
    // NOTE: Use default item animator 'canReuseUpdatedViewHolder()' will return true if
    // a Payload is provided. FlexibleAdapter is actually sending Payloads onItemChange.
    mRecyclerView.setItemAnimator(new DefaultItemAnimator());
    // Custom divider item decorator
    mRecyclerView.addItemDecoration(new FlexibleItemDecoration(getActivity())
            .addItemViewType(R.layout.recycler_expandable_header_item)
            .withOffset(4));

    // Add FastScroll to the RecyclerView, after the Adapter has been attached the RecyclerView!!!
    FastScroller fastScroller = getView().findViewById(R.id.fast_scroller);
    fastScroller.addOnScrollStateChangeListener((MainActivity) getActivity());
    mAdapter.setFastScroller(fastScroller);

    // New empty views handling, to set after FastScroller
    EmptyViewHelper.create(mAdapter,
            getView().findViewById(R.id.empty_view),
            getView().findViewById(R.id.filter_view));

    mAdapter.setLongPressDragEnabled(true) //Enable long press to drag items
            .setHandleDragEnabled(true) //Enable handle drag
            //.setDisplayHeadersAtStartUp(true); //Show Headers at startUp: (not necessary if Headers are also Expandable AND expanded at startup)
            .setStickyHeaders(true);

    SwipeRefreshLayout swipeRefreshLayout = getView().findViewById(R.id.swipeRefreshLayout);
    swipeRefreshLayout.setEnabled(true);
    mListener.onFragmentChange(swipeRefreshLayout, mRecyclerView, Mode.IDLE);
}
 

@SuppressWarnings({"ConstantConditions", "NullableProblems"})
private void initializeRecyclerView(Bundle savedInstanceState) {
    // Get the Database list
    List<AbstractFlexibleItem> items = DatabaseService.getInstance().getDatabaseList();

    // Initialize Adapter and RecyclerView
    // ExampleAdapter makes use of stableIds, I strongly suggest to implement 'item.hashCode()'
    FlexibleAdapter.useTag("SelectionModesAdapter");
    mAdapter = new ExampleAdapter(items, getActivity());
    mAdapter.setNotifyChangeOfUnfilteredItems(true) //true is the default! This will rebind new item when refreshed
            .setMode(Mode.SINGLE);

    mRecyclerView = getView().findViewById(R.id.recycler_view);
    mRecyclerView.setLayoutManager(createNewLinearLayoutManager());
    mRecyclerView.setAdapter(mAdapter);
    mRecyclerView.setHasFixedSize(true); //Size of RV will not change
    // NOTE: Use default item animator 'canReuseUpdatedViewHolder()' will return true if
    // a Payload is provided. FlexibleAdapter is actually sending Payloads onItemChange.
    mRecyclerView.setItemAnimator(new DefaultItemAnimator());
    // Divider item decorator with DrawOver enabled
    mRecyclerView.addItemDecoration(new FlexibleItemDecoration(getActivity())
            .withDivider(R.drawable.divider, R.layout.recycler_simple_item)
            .withDrawOver(true));
    mRecyclerView.postDelayed(new Runnable() {
        @Override
        public void run() {
            Snackbar.make(getView(), "Selection SINGLE is enabled", Snackbar.LENGTH_SHORT).show();
        }
    }, 1500L);

    // Add FastScroll to the RecyclerView, after the Adapter has been attached the RecyclerView!!!
    FastScroller fastScroller = getView().findViewById(R.id.fast_scroller);
    fastScroller.setAutoHideEnabled(true);        //true is the default value!
    fastScroller.setAutoHideDelayInMillis(1000L); //1000ms is the default value!
    fastScroller.setMinimumScrollThreshold(70); //0 pixel is the default value! When > 0 it mimics the fling gesture
    fastScroller.addOnScrollStateChangeListener((MainActivity) getActivity());
    // The color (accentColor) is automatically fetched by the FastScroller constructor, but you can change it at runtime
    // fastScroller.setBubbleAndHandleColor(Color.RED);
    mAdapter.setFastScroller(fastScroller);

    SwipeRefreshLayout swipeRefreshLayout = getView().findViewById(R.id.swipeRefreshLayout);
    swipeRefreshLayout.setEnabled(true);
    mListener.onFragmentChange(swipeRefreshLayout, mRecyclerView, Mode.SINGLE);

    // Add 2 Scrollable Headers
    mAdapter.addUserLearnedSelection(savedInstanceState == null);
    mAdapter.addScrollableHeaderWithDelay(new ScrollableUseCaseItem(
            getString(R.string.selection_modes_use_case_title),
            getString(R.string.selection_modes_use_case_description)), 1200L, true
    );
}
 

private void initializeRecyclerView(Bundle savedInstanceState) {
    // Initialize Adapter and RecyclerView
    // ExampleAdapter makes use of stableIds, I strongly suggest to implement 'item.hashCode()'
    FlexibleAdapter.useTag("EndlessScrollingAdapter");
    if (savedInstanceState != null) {
        mAdapter = new ExampleAdapter(DatabaseService.getInstance().getDatabaseList(), getActivity());
    } else {
        mAdapter = new ExampleAdapter(null, getActivity());
    }
    mAdapter.setAutoScrollOnExpand(true)
            //.setAnimateToLimit(Integer.MAX_VALUE) //Use the default value
            .setNotifyMoveOfFilteredItems(true) //When true, filtering on big list is very slow, not in this case!
            .setNotifyChangeOfUnfilteredItems(true) //true by default
            .setAnimationOnForwardScrolling(DatabaseConfiguration.animateOnForwardScrolling)
            .setAnimationOnReverseScrolling(true);
    mRecyclerView = getView().findViewById(R.id.recycler_view);
    mRecyclerView.setLayoutManager(createNewLinearLayoutManager());
    mRecyclerView.setAdapter(mAdapter);
    mRecyclerView.setHasFixedSize(true); //Size of RV will not change
    // NOTE: Use the custom FadeInDownAnimator for ALL notifications for ALL items,
    // but ScrollableFooterItem implements AnimatedViewHolder with a unique animation: SlideInUp!
    mRecyclerView.setItemAnimator(new FadeInDownItemAnimator());

    // Add FastScroll to the RecyclerView, after the Adapter has been attached the RecyclerView!!!
    FastScroller fastScroller = getView().findViewById(R.id.fast_scroller);
    fastScroller.addOnScrollStateChangeListener((MainActivity) getActivity());
    mAdapter.setFastScroller(fastScroller);

    // New empty views handling, to set after FastScroller
    EmptyViewHelper.create(mAdapter,
            getView().findViewById(R.id.empty_view),
            getView().findViewById(R.id.filter_view));

    mAdapter.setLongPressDragEnabled(true) //Enable long press to drag items
            .setHandleDragEnabled(true) //Enable drag using handle view
            .setSwipeEnabled(true); //Enable swipe items

    SwipeRefreshLayout swipeRefreshLayout = getView().findViewById(R.id.swipeRefreshLayout);
    swipeRefreshLayout.setEnabled(true);
    mListener.onFragmentChange(swipeRefreshLayout, mRecyclerView, Mode.IDLE);

    // EndlessScrollListener - OnLoadMore (v5.0.0)
    mAdapter.setLoadingMoreAtStartUp(savedInstanceState == null) //To call only if the list is empty
            //.setEndlessPageSize(3) //Endless is automatically disabled if newItems < 3
            //.setEndlessTargetCount(15) //Endless is automatically disabled if totalItems >= 15
            .setEndlessScrollThreshold(20) //Default=1
            .setEndlessScrollListener(this, mProgressItem)
            .setTopEndless(false);

    // Add 1 Header item
    ScrollableLayoutItem scrollHeader = new ScrollableLayoutItem("SLI");
    scrollHeader.setTitle("Endless Scrolling");
    scrollHeader.setSubtitle("...with ScrollableHeaderItem");
    mAdapter.addScrollableHeader(scrollHeader);
}
 

@SuppressWarnings({"ConstantConditions", "NullableProblems"})
private void initializeRecyclerView(Bundle savedInstanceState) {
    // Initialize Adapter and RecyclerView
    // ExampleAdapter makes use of stableIds, I strongly suggest to implement 'item.hashCode()'
    FlexibleAdapter.useTag("HeadersSectionsAdapter");
    mAdapter = new ExampleAdapter(DatabaseService.getInstance().getDatabaseList(), getActivity());
    mAdapter.setNotifyMoveOfFilteredItems(true)
            .setAnimationOnForwardScrolling(DatabaseConfiguration.animateOnForwardScrolling);
    mRecyclerView = getView().findViewById(R.id.recycler_view);
    mRecyclerView.setAdapter(mAdapter);
    mRecyclerView.setLayoutManager(createNewLinearLayoutManager());
    mRecyclerView.setHasFixedSize(true); //Size of RV will not change
    // NOTE: Use default item animator 'canReuseUpdatedViewHolder()' will return true if
    // a Payload is provided. FlexibleAdapter is actually sending Payloads onItemChange.
    mRecyclerView.setItemAnimator(new DefaultItemAnimator());
    mRecyclerView.addItemDecoration(new FlexibleItemDecoration(getActivity())
            //.addItemViewType(R.layout.recycler_header_item, 8, 8, 8, 8)
            .addItemViewType(R.layout.recycler_simple_item, 0, 8, 0, 8)
            .withSectionGapOffset(24)
            .withEdge(true));

    // Add FastScroll to the RecyclerView, after the Adapter has been attached the RecyclerView!!!
    FastScroller fastScroller = getView().findViewById(R.id.fast_scroller);
    fastScroller.addOnScrollStateChangeListener((MainActivity) getActivity());
    mAdapter.setFastScroller(fastScroller);

    // New empty views handling, to set after FastScroller
    EmptyViewHelper.create(mAdapter,
            getView().findViewById(R.id.empty_view),
            getView().findViewById(R.id.filter_view),
            (EmptyViewHelper.OnEmptyViewListener) getActivity()); // Optional!!

    // More settings
    mAdapter.setLongPressDragEnabled(true)
            .setHandleDragEnabled(true)
            .setSwipeEnabled(true)
            .setStickyHeaderElevation(5)
            .setUnlinkAllItemsOnRemoveHeaders(true)
            // Show Headers at startUp, 1st call, correctly executed, no warning log message!
            .setDisplayHeadersAtStartUp(true)
            .setStickyHeaders(true);
    // Simulate developer 2nd call mistake, now it's safe, not executed, no warning log message!
    //.setDisplayHeadersAtStartUp(true)
    // Simulate developer 3rd call mistake, still safe, not executed, warning log message displayed!
    //.showAllHeaders();

    SwipeRefreshLayout swipeRefreshLayout = getView().findViewById(R.id.swipeRefreshLayout);
    swipeRefreshLayout.setEnabled(true);
    mListener.onFragmentChange(swipeRefreshLayout, mRecyclerView, Mode.IDLE);

    // Add 2 Scrollable Headers and 1 Footer
    mAdapter.addUserLearnedSelection(savedInstanceState == null);
    mAdapter.addScrollableHeaderWithDelay(new ScrollableUseCaseItem(
            getString(R.string.headers_sections_use_case_title),
            getString(R.string.headers_sections_use_case_description)), 900L, false);
    mAdapter.addScrollableFooter();
}
 

@SuppressWarnings({"ConstantConditions", "NullableProblems"})
private void initializeRecyclerView(Bundle savedInstanceState) {
    // Initialize Adapter and RecyclerView
    // ExampleAdapter makes use of stableIds, I strongly suggest to implement 'item.hashCode()'
    FlexibleAdapter.useTag("ExpandableMultiLevelAdapter");
    mAdapter = new ExampleAdapter(DatabaseService.getInstance().getDatabaseList(), getActivity());
    mAdapter.expandItemsAtStartUp()
            .setNotifyMoveOfFilteredItems(true)
            .setAutoCollapseOnExpand(false)
            .setMinCollapsibleLevel(1) //Auto-collapse only items with level >= 1 (avoid to collapse also sections!)
            .setAutoScrollOnExpand(true);
    mRecyclerView = getView().findViewById(R.id.recycler_view);
    mRecyclerView.setLayoutManager(createNewLinearLayoutManager());
    mRecyclerView.setAdapter(mAdapter);
    mRecyclerView.setHasFixedSize(true); //Size of RV will not change
    // NOTE: Use default item animator 'canReuseUpdatedViewHolder()' will return true if
    // a Payload is provided. FlexibleAdapter is actually sending Payloads onItemChange.
    mRecyclerView.setItemAnimator(new DefaultItemAnimator());

    // Add FastScroll to the RecyclerView, after the Adapter has been attached the RecyclerView!!!
    FastScroller fastScroller = getView().findViewById(R.id.fast_scroller);
    fastScroller.addOnScrollStateChangeListener((MainActivity) getActivity());
    mAdapter.setFastScroller(fastScroller);

    // New empty views handling, to set after FastScroller
    EmptyViewHelper.create(mAdapter,
            getView().findViewById(R.id.empty_view),
            getView().findViewById(R.id.filter_view));

    mAdapter.setLongPressDragEnabled(true) //Enable long press to drag items
            .setHandleDragEnabled(true) //Enable handle drag
            .setSwipeEnabled(true); //Enable swipe items
    //.setDisplayHeadersAtStartUp(true); //Show Headers at startUp: not necessary if Headers are also Expandable!

    mRecyclerView.addItemDecoration(new FlexibleItemDecoration(getActivity())
            .withSectionGapOffset(24));

    SwipeRefreshLayout swipeRefreshLayout = getView().findViewById(R.id.swipeRefreshLayout);
    swipeRefreshLayout.setEnabled(true);
    mListener.onFragmentChange(swipeRefreshLayout, mRecyclerView, Mode.IDLE);

    // Add 1 Scrollable Header
    mAdapter.addUserLearnedSelection(savedInstanceState == null);
}
 

@SuppressWarnings({"ConstantConditions", "NullableProblems"})
private void initializeRecyclerView(Bundle savedInstanceState) {
    // Initialize Adapter and RecyclerView
    // OverallAdapter makes use of stableIds, I strongly suggest to implement 'item.hashCode()'
    FlexibleAdapter.useTag("OverallAdapter");
    mAdapter = new OverallAdapter(getActivity());
    mAdapter.setOnlyEntryAnimation(true)
            .setAnimationInterpolator(new DecelerateInterpolator())
            .setAnimationInitialDelay(INITIAL_DELAY_300);

    // Prepare the RecyclerView and attach the Adapter to it
    mRecyclerView = getView().findViewById(R.id.recycler_view);
    mRecyclerView.setItemViewCacheSize(0); //Setting ViewCache to 0 (default=2) will animate items better while scrolling down+up with LinearLayout
    mRecyclerView.setLayoutManager(createNewStaggeredGridLayoutManager());
    mRecyclerView.setAdapter(mAdapter);
    mRecyclerView.setHasFixedSize(true); //Size of RV will not change
    mItemDecoration = new FlexibleItemDecoration(getActivity())
            .addItemViewType(R.layout.recycler_overall_item)
            .withOffset(8) // This helps when top items are removed!!
            .withEdge(true);
    mRecyclerView.addItemDecoration(mItemDecoration);

    // After Adapter is attached to RecyclerView
    mAdapter.setLongPressDragEnabled(true);
    mRecyclerView.postDelayed(new Runnable() {
        @Override
        public void run() {
            if (getView() != null) { //Fix NPE when closing app before the execution of Runnable
                Snackbar.make(getView(), "Long press drag is enabled", Snackbar.LENGTH_SHORT).show();
            }
        }
    }, 4000L);

    SwipeRefreshLayout swipeRefreshLayout = getView().findViewById(R.id.swipeRefreshLayout);
    swipeRefreshLayout.setEnabled(true);
    mListener.onFragmentChange(swipeRefreshLayout, mRecyclerView, Mode.IDLE);

    // Add 1 Scrollable Header
    scrollableUseCaseItem = new ScrollableUseCaseItem(
            getString(R.string.overall_use_case_title),
            getString(R.string.overall_use_case_description));
    // Delayed! So entry animation will perform together
    mAdapter.addScrollableHeaderWithDelay(scrollableUseCaseItem, INITIAL_DELAY_300, true);
}
 

protected void onPostExecute(Long result) {
    if (!loadMoreMessages) {
        if (swipeRefreshLayoutWeakReference != null) {
            final SwipeRefreshLayout swipeRefreshLayout = swipeRefreshLayoutWeakReference.get();
            if (swipeRefreshLayout != null) {
                swipeRefreshLayout.setEnabled(true);
                swipeRefreshLayout.post(new Runnable() {
                    @Override
                    public void run() {
                        swipeRefreshLayout.setRefreshing(false);
                    }
                });
            }
        }
    }

    if (!loadMoreMessages) {
        messageList.clear();
        latestMessageForEachContact.clear();
    }

    if (!TextUtils.isEmpty(searchString)) {
        messageList.addAll(nextMessageList);
    } else {
        for (Message currentMessage : nextMessageList) {
            if (currentMessage.isSentToMany()) {
                continue;
            }
            Message recentSms;
            if (currentMessage.getGroupId() != null) {
                recentSms = latestMessageForEachContact.get(ConversationUIService.GROUP + currentMessage.getGroupId());
            } else {
                recentSms = latestMessageForEachContact.get(currentMessage.getContactIds());
            }

            if (recentSms != null) {
                if (currentMessage.getCreatedAtTime() >= recentSms.getCreatedAtTime()) {
                    if (currentMessage.getGroupId() != null) {
                        latestMessageForEachContact.put(ConversationUIService.GROUP + currentMessage.getGroupId(), currentMessage);
                    } else {
                        latestMessageForEachContact.put(currentMessage.getContactIds(), currentMessage);
                    }
                    messageList.remove(recentSms);
                    messageList.add(currentMessage);
                }
            } else {
                if (currentMessage.getGroupId() != null) {
                    latestMessageForEachContact.put(ConversationUIService.GROUP + currentMessage.getGroupId(), currentMessage);
                } else {
                    latestMessageForEachContact.put(currentMessage.getContactIds(), currentMessage);
                }

                messageList.add(currentMessage);
            }
        }
    }

    if (loadMoreMessages) {
        if (messageList.contains(null)) {
            messageList.remove(null);
        }
        //progressBar.setVisibility(View.GONE);
    }
    if (recyclerAdapter != null) {
        recyclerAdapter.notifyDataSetChanged();
    }
    if (initial) {
        if (textViewWeakReference != null) {
            TextView emptyTextView = textViewWeakReference.get();
            if (emptyTextView != null) {
                emptyTextView.setVisibility(messageList.isEmpty() ? View.VISIBLE : View.GONE);
                if (!TextUtils.isEmpty(searchString) && messageList.isEmpty()) {
                    emptyTextView.setText(!TextUtils.isEmpty(alCustomizationSettings.getNoSearchFoundForChatMessages()) ? alCustomizationSettings.getNoSearchFoundForChatMessages() : noConversationFound);
                } else if (TextUtils.isEmpty(searchString) && messageList.isEmpty()) {
                    emptyTextView.setText(!TextUtils.isEmpty(alCustomizationSettings.getNoConversationLabel()) ? alCustomizationSettings.getNoConversationLabel() : conversationLabel);
                }
            }
        }
        if (!messageList.isEmpty()) {
            if (recyclerView != null && recyclerAdapter != null) {
                if (recyclerAdapter.getItemCount() > BroadcastService.lastIndexForChats) {
                    recyclerView.scrollToPosition(BroadcastService.lastIndexForChats);
                    BroadcastService.lastIndexForChats = 0;
                } else {
                    recyclerView.scrollToPosition(0);
                }
            }
        }
    } else {
        if (!loadMoreMessages && recyclerViewWr != null && recyclerViewWr.get() != null) {
            recyclerViewWr.get().scrollToPosition(firstVisibleItem);
        }
    }
    if (!nextMessageList.isEmpty()) {
        loadMore = true;
    }
    isAlreadyLoading = false;
}
 

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.fragment_search, container, false);
    mRecyclerView = (XRecyclerView) view.findViewById(R.id.rv_threads);
    mRecyclerView.setHasFixedSize(true);
    mRecyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
    mRecyclerView.addItemDecoration(new SimpleDivider(getActivity()));

    mRecyclerView.addOnScrollListener(new OnScrollListener());

    mRecyclerView.setAdapter(mSimpleListAdapter);

    mSearchFilterLayout = (RelativeLayout) view.findViewById(R.id.search_filter_layout);
    ViewCompat.setElevation(mSearchFilterLayout, Utils.dpToPx(4));
    mSearchFilterLayout.setAlpha(0);

    mSpForum = (Spinner) view.findViewById(R.id.sp_forum);
    mSpAdapter = new KeyValueArrayAdapter(getActivity(), R.layout.spinner_row);
    mSpAdapter.setEntryValues(getForumIds());
    mSpAdapter.setEntries(getForumNames());
    mSpForum.setAdapter(mSpAdapter);

    mEtAuthor = (EditText) view.findViewById(R.id.et_author);
    mEtAuthor.setOnEditorActionListener(mSearchEditorActionListener);

    mCbFulltext = (CheckBox) view.findViewById(R.id.cb_fulltext);
    mCbFulltext.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
            if (mSearchView != null) {
                if (isChecked) {
                    mSearchView.setQueryHint("搜索全文");
                } else {
                    mSearchView.setQueryHint("搜索标题");
                }
            }
        }
    });

    RecyclerView rvHistory = (RecyclerView) view.findViewById(R.id.rv_history);
    rvHistory.setHasFixedSize(true);
    rvHistory.setLayoutManager(new LinearLayoutManager(getActivity()));
    rvHistory.setAdapter(mHistoryAdapter);

    mHistoryAdapter.setDatas(mQueries);

    mSwipeLayout = (SwipeRefreshLayout) view.findViewById(R.id.swipe_container);
    mSwipeLayout.setOnRefreshListener(this);
    mSwipeLayout.setColorSchemeColors(ColorHelper.getSwipeColor(getActivity()));
    mSwipeLayout.setProgressBackgroundColorSchemeColor(ColorHelper.getSwipeBackgroundColor(getActivity()));
    mSwipeLayout.setEnabled(false);

    mLoadingView = (ContentLoadingView) view.findViewById(R.id.content_loading);
    mLoadingView.setState(ContentLoadingView.NO_DATA);

    new Handler().postDelayed(new Runnable() {
        @Override
        public void run() {
            //hide then show mSearchFilterLayout, cannot get it's height on first show
            //so I use a fixed value here, tell me if you know a better way
            mSearchFilterLayout.animate()
                    .alpha(0)
                    .setDuration(100)
                    .translationYBy(-300)
                    .setListener(new AnimatorListenerAdapter() {
                        @Override
                        public void onAnimationEnd(Animator animation) {
                            super.onAnimationEnd(animation);
                            mSearchFilterLayout.setVisibility(View.GONE);
                            mSearchFilterAnimating = false;
                            showSearchFilter();
                        }
                    });
        }
    }, 150);
    return view;
}