com.github.ksoichiro.android.observablescrollview.ObservableRecyclerView Java Examples

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_touchinterception_recyclerview);
    ((TextView) findViewById(R.id.title)).setText(getClass().getSimpleName());
    mScrollable = (Scrollable) findViewById(R.id.scrollable);
    mScrollable.setScrollViewCallbacks(this);
    ObservableRecyclerView recyclerView = (ObservableRecyclerView) mScrollable;
    recyclerView.setLayoutManager(new LinearLayoutManager(this));
    recyclerView.setHasFixedSize(true);
    recyclerView.setScrollViewCallbacks(this);
    UiTestUtils.setDummyData(this, recyclerView);

    mIntersectionHeight = getResources().getDimensionPixelSize(R.dimen.intersection_height);
    mHeaderBarHeight = getResources().getDimensionPixelSize(R.dimen.header_bar_height);

    mInterceptionLayout = (TouchInterceptionFrameLayout) findViewById(R.id.scroll_wrapper);
    mInterceptionLayout.setScrollInterceptionListener(mInterceptionListener);
}
 

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

    Activity parentActivity = getActivity();
    final ObservableRecyclerView recyclerView = (ObservableRecyclerView) view.findViewById(R.id.scroll);
    recyclerView.setLayoutManager(new LinearLayoutManager(parentActivity));
    recyclerView.setHasFixedSize(false);
    setDummyData(recyclerView);
    recyclerView.setTouchInterceptionViewGroup((ViewGroup) parentActivity.findViewById(R.id.container));

    if (parentActivity instanceof ObservableScrollViewCallbacks) {
        recyclerView.setScrollViewCallbacks((ObservableScrollViewCallbacks) parentActivity);
    }
    return view;
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_stickyheaderrecyclerview);

    setSupportActionBar((Toolbar) findViewById(R.id.toolbar));

    mHeaderView = findViewById(R.id.header);
    ViewCompat.setElevation(mHeaderView, getResources().getDimension(R.dimen.toolbar_elevation));
    mToolbarView = findViewById(R.id.toolbar);

    mRecyclerView = (ObservableRecyclerView) findViewById(R.id.recycler);
    mRecyclerView.setScrollViewCallbacks(this);
    mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
    mRecyclerView.setHasFixedSize(false);
    View headerView = LayoutInflater.from(this).inflate(R.layout.recycler_header, null);
    setDummyDataWithHeader(mRecyclerView, headerView);
}
 

@Override
public void setScrollY(int scrollY, int threshold) {
    View view = getView();
    if (view == null) {
        return;
    }
    ObservableRecyclerView recyclerView = (ObservableRecyclerView) view.findViewById(R.id.scroll);
    if (recyclerView == null) {
        return;
    }
    View firstVisibleChild = recyclerView.getChildAt(0);
    if (firstVisibleChild != null) {
        int offset = scrollY;
        int position = 0;
        if (threshold < scrollY) {
            int baseHeight = firstVisibleChild.getHeight();
            position = scrollY / baseHeight;
            offset = scrollY % baseHeight;
        }
        RecyclerView.LayoutManager lm = recyclerView.getLayoutManager();
        if (lm != null && lm instanceof LinearLayoutManager) {
            ((LinearLayoutManager) lm).scrollToPositionWithOffset(position, -offset);
        }
    }
}
 

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

    final ObservableRecyclerView recyclerView = (ObservableRecyclerView) view.findViewById(R.id.scroll);
    recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
    recyclerView.setHasFixedSize(false);
    setDummyData(recyclerView);

    Fragment parentFragment = getParentFragment();
    ViewGroup viewGroup = (ViewGroup) parentFragment.getView();
    if (viewGroup != null) {
        recyclerView.setTouchInterceptionViewGroup((ViewGroup) viewGroup.findViewById(R.id.container));
        if (parentFragment instanceof ObservableScrollViewCallbacks) {
            recyclerView.setScrollViewCallbacks((ObservableScrollViewCallbacks) parentFragment);
        }
    }
    return view;
}
 

@Override
protected void updateFlexibleSpace(int scrollY, View view) {
    int flexibleSpaceImageHeight = getResources().getDimensionPixelSize(R.dimen.flexible_space_image_height);

    View recyclerViewBackground = view.findViewById(R.id.list_background);

    // Translate list background
    ViewHelper.setTranslationY(recyclerViewBackground, Math.max(0, -scrollY + flexibleSpaceImageHeight));

    // Also pass this event to parent Activity
    FlexibleSpaceWithImageWithViewPagerTabActivity parentActivity =
            (FlexibleSpaceWithImageWithViewPagerTabActivity) getActivity();
    if (parentActivity != null) {
        parentActivity.onScrollChanged(scrollY, (ObservableRecyclerView) view.findViewById(R.id.scroll));
    }
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.observable_scroll_view_activity_toolbarcontrolrecyclerview);

    setSupportActionBar((Toolbar) findViewById(R.id.toolbar));

    mHeaderView = findViewById(R.id.header);
    ViewCompat.setElevation(mHeaderView, getResources().getDimension(R.dimen.toolbar_elevation));
    mToolbarView = findViewById(R.id.toolbar);

    mRecyclerView = (ObservableRecyclerView) findViewById(R.id.recycler);
    mRecyclerView.setScrollViewCallbacks(this);
    mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
    mRecyclerView.setHasFixedSize(false);

    ArrayList<String> items = new ArrayList<String>();
    for (int i = 1; i <= 100; i++) {
        items.add("Item " + i);
    }
    View headerView = LayoutInflater.from(this).inflate(R.layout.observable_scroll_view_recycler_header, null);
    mRecyclerView.setAdapter(new SimpleHeaderRecyclerAdapter(this, items, headerView));
}
 

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

    layoutManager = new GridLayoutManager(activity, getSpanCount());
    layoutManager.setSpanSizeLookup(new HeaderSpanSizeLookup(layoutManager));

    photos = (ObservableRecyclerView) rootView.findViewById(R.id.photos);
    photos.setHasFixedSize(true);
    photos.setLayoutManager(layoutManager);
    photos.setAdapter(adapter);
    photos.setScrollViewCallbacks(this);

    albumId = getArguments().getString("id");

    return rootView;
}
 

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

    Activity parentActivity = getActivity();
    final ObservableRecyclerView recyclerView = (ObservableRecyclerView) view.findViewById(R.id.scroll);
    recyclerView.setLayoutManager(new LinearLayoutManager(parentActivity));
    recyclerView.setHasFixedSize(false);
    UiTestUtils.setDummyData(getActivity(), recyclerView);
    recyclerView.setTouchInterceptionViewGroup((ViewGroup) parentActivity.findViewById(R.id.container));

    if (parentActivity instanceof ObservableScrollViewCallbacks) {
        recyclerView.setScrollViewCallbacks((ObservableScrollViewCallbacks) parentActivity);
    }
    return view;
}
 

static ObservableRecyclerView findRecyclerView(final View view) {
    if (view instanceof ObservableRecyclerView) {
        return (ObservableRecyclerView) view;
    }
    if (!(view instanceof ViewGroup)) {
        return null;
    }
    ViewGroup group = (ViewGroup) view;
    int count = group.getChildCount();
    for (int i = 0; i < count; i++) {
        ObservableRecyclerView child = findRecyclerView(group.getChildAt(i));
        if (child != null) {
            return child;
        }
    }
    return null;
}
 

@Override
public void onPageScrollStateChanged(final int state) {
    findFirstActiveRecyclerView();
    if (state == SCROLL_STATE_IDLE) {
        return;
    }
    final int activeScrollY = activeHolder.getScrollY();
    for (Map.Entry<ObservableRecyclerView, RecyclerViewHolder> item : holders.entrySet()) {
        final RecyclerViewHolder holder = item.getValue();
        if (holder == activeHolder) {
            continue;
        }
        final int scrollY = holder.getScrollY();
        if (activeScrollY >= flexibleHeight - baseHeight
                && scrollY >= flexibleHeight - baseHeight) {
            continue;
        }
        holder.scrollTo(Math.min(activeScrollY, flexibleHeight - baseHeight));
    }
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_recyclerview);

    ObservableRecyclerView recyclerView = (ObservableRecyclerView) findViewById(R.id.scrollable);
    recyclerView.setLayoutManager(new LinearLayoutManager(this));
    recyclerView.setHasFixedSize(true);
    recyclerView.setScrollViewCallbacks(this);
    UiTestUtils.setDummyData(this, recyclerView);
}
 

@Override
protected void setUp() throws Exception {
    super.setUp();
    setActivityInitialTouchMode(true);
    activity = getActivity();
    scrollable = (ObservableRecyclerView) activity.findViewById(R.id.scrollable);
    callbackCounter = new int[2];
    getInstrumentation().waitForIdleSync();
}
 

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

    Activity parentActivity = getActivity();
    final ObservableRecyclerView recyclerView = (ObservableRecyclerView) view.findViewById(R.id.scroll);
    recyclerView.setLayoutManager(new LinearLayoutManager(parentActivity));
    recyclerView.setHasFixedSize(false);
    View headerView = LayoutInflater.from(parentActivity).inflate(R.layout.padding, null);
    UiTestUtils.setDummyDataWithHeader(getActivity(), recyclerView, headerView);

    if (parentActivity instanceof ObservableScrollViewCallbacks) {
        // Scroll to the specified offset after layout
        Bundle args = getArguments();
        if (args != null && args.containsKey(ARG_INITIAL_POSITION)) {
            final int initialPosition = args.getInt(ARG_INITIAL_POSITION, 0);
            ScrollUtils.addOnGlobalLayoutListener(recyclerView, new Runnable() {
                @Override
                public void run() {
                    recyclerView.scrollVerticallyToPosition(initialPosition);
                }
            });
        }
        recyclerView.setScrollViewCallbacks((ObservableScrollViewCallbacks) parentActivity);
    }
    return view;
}
 

@Override
protected void setUp() throws Exception {
    super.setUp();
    setActivityInitialTouchMode(true);
    activity = getActivity();
    scrollable = (ObservableRecyclerView) activity.findViewById(R.id.scrollable);
}
 

public void testInitialize() throws Throwable {
    runTestOnUiThread(new Runnable() {
        @Override
        public void run() {
            new ObservableRecyclerView(activity);
            new ObservableRecyclerView(activity, null, 0);
        }
    });
}
 

@Override
protected ObservableRecyclerView createScrollable() {
    ObservableRecyclerView recyclerView = (ObservableRecyclerView) findViewById(R.id.scroll);
    recyclerView.setScrollViewCallbacks(this);
    recyclerView.setLayoutManager(new LinearLayoutManager(this));
    recyclerView.setHasFixedSize(false);
    setDummyDataWithHeader(recyclerView, mFlexibleSpaceImageHeight);
    return recyclerView;
}
 

public void testNoCallbacks() throws Throwable {
    runTestOnUiThread(new Runnable() {
        @Override
        public void run() {
            scrollable = (ObservableRecyclerView) activity.findViewById(R.id.scrollable);
            scrollable.setScrollViewCallbacks(null);
        }
    });
    testScroll();
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    final ObservableRecyclerView scrollable = (ObservableRecyclerView) findViewById(R.id.scrollable);
    ScrollUtils.addOnGlobalLayoutListener(scrollable, new Runnable() {
        @Override
        public void run() {
            int count = scrollable.getAdapter().getItemCount() - 1;
            int position = count == 0 ? 1 : count > 0 ? count : 0;
            scrollable.scrollToPosition(position);
        }
    });
}
 

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

    final ObservableRecyclerView recyclerView = (ObservableRecyclerView) view.findViewById(R.id.scroll);
    recyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
    recyclerView.setHasFixedSize(false);
    final View headerView = LayoutInflater.from(getActivity()).inflate(R.layout.recycler_header, null);
    final int flexibleSpaceImageHeight = getResources().getDimensionPixelSize(R.dimen.flexible_space_image_height);
    headerView.setLayoutParams(new LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, flexibleSpaceImageHeight));
    setDummyDataWithHeader(recyclerView, headerView);

    // TouchInterceptionViewGroup should be a parent view other than ViewPager.
    // This is a workaround for the issue #117:
    // https://github.com/ksoichiro/Android-ObservableScrollView/issues/117
    recyclerView.setTouchInterceptionViewGroup((ViewGroup) view.findViewById(R.id.fragment_root));

    // Scroll to the specified offset after layout
    Bundle args = getArguments();
    if (args != null && args.containsKey(ARG_SCROLL_Y)) {
        final int scrollY = args.getInt(ARG_SCROLL_Y, 0);
        ScrollUtils.addOnGlobalLayoutListener(recyclerView, new Runnable() {
            @Override
            public void run() {
                int offset = scrollY % flexibleSpaceImageHeight;
                RecyclerView.LayoutManager lm = recyclerView.getLayoutManager();
                if (lm != null && lm instanceof LinearLayoutManager) {
                    ((LinearLayoutManager) lm).scrollToPositionWithOffset(0, -offset);
                }
            }
        });
        updateFlexibleSpace(scrollY, view);
    } else {
        updateFlexibleSpace(0, view);
    }

    recyclerView.setScrollViewCallbacks(this);

    return view;
}
 

@Override
protected void setUp() throws Exception {
    super.setUp();
    setActivityInitialTouchMode(true);
    activity = getActivity();
    scrollable = (ObservableRecyclerView) activity.findViewById(R.id.scrollable);
}
 

@Override
protected ObservableRecyclerView createScrollable() {
    ObservableRecyclerView recyclerView = (ObservableRecyclerView) findViewById(R.id.scroll);
    recyclerView.setScrollViewCallbacks(this);
    recyclerView.setLayoutManager(new LinearLayoutManager(this));
    recyclerView.setHasFixedSize(true);
    setDummyDataFew(recyclerView);
    return recyclerView;
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_actionbarcontrolrecyclerview);

    ObservableRecyclerView recyclerView = (ObservableRecyclerView) findViewById(R.id.recycler);
    recyclerView.setLayoutManager(new LinearLayoutManager(this));
    recyclerView.setHasFixedSize(true);
    recyclerView.setScrollViewCallbacks(this);
    setDummyData(recyclerView);
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.observable_scroll_view_activity_toolbarcontrolrecyclerview);

    setSupportActionBar((Toolbar) findViewById(R.id.toolbar));

    mHeaderView = findViewById(R.id.header);
    ViewCompat.setElevation(mHeaderView, getResources().getDimension(R.dimen.toolbar_elevation));
    mToolbarView = findViewById(R.id.toolbar);

    mRecyclerView = (ObservableRecyclerView) findViewById(R.id.recycler);
    mRecyclerView.setScrollViewCallbacks(this);
    mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
    mRecyclerView.setHasFixedSize(false);

    ArrayList<String> items = new ArrayList<String>();
    for (int i = 1; i <= 100; i++) {
        items.add("Item " + i);
    }
    View headerView = LayoutInflater.from(this).inflate(R.layout.observable_scroll_view_recycler_header, null);
    mRecyclerView.setAdapter(new SimpleHeaderRecyclerAdapter(this, items, headerView));

    ViewTreeObserver vto = mRecyclerView.getViewTreeObserver();
    vto.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
        @Override
        public void onGlobalLayout() {
            if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
                mRecyclerView.getViewTreeObserver().removeGlobalOnLayoutListener(this);
            } else {
                mRecyclerView.getViewTreeObserver().removeOnGlobalLayoutListener(this);
            }
            int count = mRecyclerView.getAdapter().getItemCount() - 1;
            int position = count == 0 ? 1 : count > 0 ? count : 0;
            mRecyclerView.scrollToPosition(position);
        }
    });
}
 

public RecyclerViewHolder(final ObservableRecyclerView recyclerView,
        final BehaviorDispatcher behaviorDispatcher) {
    this.recyclerView = recyclerView;
    this.recyclerView.setClipToPadding(false);
    this.behaviorDispatcher = behaviorDispatcher;
    recyclerView.setScrollViewCallbacks(new OnScrollDelegate(this));
}
 

@Override
public void onPageSelected(final int position) {
    final ObservableRecyclerView recyclerView = findRecyclerViewFrom(position);
    if (recyclerView == null) {
        return;
    }
    for (RecyclerViewHolder holder : holders.values()) {
        holder.setIsDispatchScroll(false);
    }
    behaviorDispatcher.onScrolled(activeHolder.getScrollY(), 0);
    activeHolder = holders.get(recyclerView);
    activeHolder.setIsDispatchScroll(true);
}
 

@Override
public void addView(final View child, final int index, final ViewGroup.LayoutParams params) {
    super.addView(child, index, params);
    ObservableRecyclerView recyclerView = Utils.findRecyclerView(child);
    if (recyclerView == null) {
        return;
    }
    RecyclerViewHolder holder = new RecyclerViewHolder(recyclerView, behaviorDispatcher);
    holder.setFlexibleHeight(flexibleHeight);
    recyclerViews.put(child, recyclerView);
    holders.put(recyclerView, holder);
}
 

private ObservableRecyclerView findRecyclerViewFrom(final int position) {
    final PagerAdapter adapter = getAdapter();
    if (adapter instanceof ContainRecyclerViewPagerAdapter) {
        return ((ContainRecyclerViewPagerAdapter) adapter).getRecyclerView(position);
    }
    return null;
}
 

@Override
public void addView(final View child, final int index, final ViewGroup.LayoutParams params) {
    super.addView(child, index, params);
    ObservableRecyclerView recyclerView = Utils.findRecyclerView(child);
    if (recyclerView == null) {
        return;
    }
    recyclerViewHolder = new RecyclerViewHolder(recyclerView, behaviorDispatcher);
    recyclerViewHolder.setFlexibleHeight(flexibleHeight);
    recyclerViewHolder.setIsDispatchScroll(true);
}
 

@Override
protected void setUpViews() {
	mRecyclerView = (ObservableRecyclerView) findViewById(R.id.company_list);
	mSearchBox = (SearchBox) findViewById(R.id.searchBox);

	mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
	mRecyclerView.setHasFixedSize(true);
	mSearchBox.setHintText(getString(R.string.search_hint_company));
	mSearchBox.setLogoText("");
}