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

private void adjustToolbarForListViews(ScrollState scrollState, View view) {
    int toolbarHeight = mToolbarView.getHeight();
    final ObservableListView listView = (ObservableListView) view.findViewById(R.id.list);
    if (listView == null) {
        return;
    }
    if (scrollState == ScrollState.UP) {
        if (toolbarHeight < listView.getCurrentScrollY()) {
            hideToolbar();
        } else if (listView.getCurrentScrollY() < toolbarHeight) {
            showToolbar();
        }
    } else if (scrollState == ScrollState.DOWN) {
        if (toolbarHeight < listView.getCurrentScrollY()) {
            showToolbar();
        }
    }
}
 

private void propagateToolbarStateForListView(boolean isShown, View view, int toolbarHeight) {
    ObservableListView listView = (ObservableListView) view.findViewById(R.id.list);
    if (listView == null) {
        return;
    }
    if (isShown) {
        // Scroll up
        if (0 < listView.getCurrentScrollY()) {
            listView.setSelection(0);
        }
    } else {
        // Scroll down (to hide padding)
        if (listView.getCurrentScrollY() < toolbarHeight) {
            listView.setSelection(1);
        }
    }
}
 

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

    Activity parentActivity = getActivity();
    final ObservableListView listView = (ObservableListView) view.findViewById(R.id.scroll);
    UiTestUtils.setDummyDataWithHeader(getActivity(), listView, inflater.inflate(R.layout.padding, null));

    if (parentActivity instanceof ObservableScrollViewCallbacks) {
        // Scroll to the specified position after layout
        Bundle args = getArguments();
        if (args != null && args.containsKey(ARG_INITIAL_POSITION)) {
            final int initialPosition = args.getInt(ARG_INITIAL_POSITION, 0);
            ScrollUtils.addOnGlobalLayoutListener(listView, new Runnable() {
                @Override
                public void run() {
                    // scrollTo() doesn't work, should use setSelection()
                    listView.setSelection(initialPosition);
                }
            });
        }
        listView.setScrollViewCallbacks((ObservableScrollViewCallbacks) parentActivity);
    }
    return view;
}
 

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

    final ObservableListView listView = (ObservableListView) view.findViewById(R.id.scroll);
    setDummyData(listView);

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

@SuppressWarnings("NewApi")
@Override
public void setScrollY(int scrollY, int threshold) {
    View view = getView();
    if (view == null) {
        return;
    }
    ObservableListView listView = (ObservableListView) view.findViewById(R.id.scroll);
    if (listView == null) {
        return;
    }
    View firstVisibleChild = listView.getChildAt(0);
    if (firstVisibleChild != null) {
        int offset = scrollY;
        int position = 0;
        if (threshold < scrollY) {
            int baseHeight = firstVisibleChild.getHeight();
            position = scrollY / baseHeight;
            offset = scrollY % baseHeight;
        }
        listView.setSelectionFromTop(position, -offset);
    }
}
 

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

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

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

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

@Override
public void onUpOrCancelMotionEvent(ScrollState scrollState) {
    mBaseTranslationY = 0;

    Fragment fragment = getCurrentFragment();
    if (fragment == null) {
        return;
    }
    View view = fragment.getView();
    if (view == null) {
        return;
    }

    int toolbarHeight = mToolbarView.getHeight();
    final ObservableListView listView = (ObservableListView) view.findViewById(R.id.scroll);
    if (listView == null) {
        return;
    }
    int scrollY = listView.getCurrentScrollY();
    if (scrollState == ScrollState.DOWN) {
        showToolbar();
    } else if (scrollState == ScrollState.UP) {
        if (toolbarHeight <= scrollY) {
            hideToolbar();
        } else {
            showToolbar();
        }
    } else {
        // Even if onScrollChanged occurs without scrollY changing, toolbar should be adjusted
        if (toolbarIsShown() || toolbarIsHidden()) {
            // Toolbar is completely moved, so just keep its state
            // and propagate it to other pages
            propagateToolbarState(toolbarIsShown());
        } else {
            // Toolbar is moving but doesn't know which to move:
            // you can change this to hideToolbar()
            showToolbar();
        }
    }
}
 

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

    Activity parentActivity = getActivity();
    final ObservableListView listView = (ObservableListView) view.findViewById(R.id.list);
    listView.addHeaderView(inflater.inflate(R.layout.observable_scroll_view_padding, null));
    List<String> items = new ArrayList<String>();
    for (int i = 1; i <= 100; i++) {
        items.add("Item " + i);
    }
    listView.setAdapter(new ArrayAdapter<String>(parentActivity, android.R.layout.simple_list_item_1, items));

    if (parentActivity instanceof ObservableScrollViewCallbacks) {
        // Scroll to the specified position after layout
        Bundle args = getArguments();
        if (args != null && args.containsKey(ARG_INITIAL_POSITION)) {
            final int initialPosition = args.getInt(ARG_INITIAL_POSITION, 0);
            ViewTreeObserver vto = listView.getViewTreeObserver();
            vto.addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() {
                @Override
                public void onGlobalLayout() {
                    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
                        listView.getViewTreeObserver().removeGlobalOnLayoutListener(this);
                    } else {
                        listView.getViewTreeObserver().removeOnGlobalLayoutListener(this);
                    }
                    // scrollTo() doesn't work, should use setSelection()
                    listView.setSelection(initialPosition);
                }
            });
        }
        listView.setScrollViewCallbacks((ObservableScrollViewCallbacks) parentActivity);
    }
    return view;
}
 

private void propagateToolbarState(boolean isShown) {
    int toolbarHeight = mToolbarView.getHeight();

    // Set scrollY for the fragments that are not created yet
    mPagerAdapter.setScrollY(isShown ? 0 : toolbarHeight);

    // Set scrollY for the active fragments
    for (int i = 0; i < mPagerAdapter.getCount(); i++) {
        // Skip current item
        if (i == mPager.getCurrentItem()) {
            continue;
        }

        // Skip destroyed or not created item
        Fragment f = mPagerAdapter.getItemAt(i);
        if (f == null) {
            continue;
        }

        View view = f.getView();
        if (view == null) {
            continue;
        }
        ObservableListView listView = (ObservableListView) view.findViewById(R.id.scroll);
        if (isShown) {
            // Scroll up
            if (0 < listView.getCurrentScrollY()) {
                listView.setSelection(0);
            }
        } else {
            // Scroll down (to hide padding)
            if (listView.getCurrentScrollY() < toolbarHeight) {
                listView.setSelection(1);
            }
        }
    }
}
 

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

    ObservableListView listView = (ObservableListView) findViewById(R.id.scroll);
    listView.setScrollViewCallbacks(this);
    listView.setAdapter(new CustomAdapter(this, getDummyData()));
}
 

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

    Activity parentActivity = getActivity();
    final ObservableListView listView = (ObservableListView) view.findViewById(R.id.scroll);
    setDummyData(listView);
    listView.setTouchInterceptionViewGroup((ViewGroup) parentActivity.findViewById(R.id.container));

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

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

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_touchinterception_listview);
    ((TextView) findViewById(R.id.title)).setText(getClass().getSimpleName());
    mScrollable = (Scrollable) findViewById(R.id.scrollable);
    mScrollable.setScrollViewCallbacks(this);
    UiTestUtils.setDummyData(this, (ObservableListView) mScrollable);

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

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

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

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

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

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

    Activity parentActivity = getActivity();
    final ObservableListView listView = (ObservableListView) view.findViewById(R.id.scroll);
    UiTestUtils.setDummyData(getActivity(), listView);
    listView.setTouchInterceptionViewGroup((ViewGroup) parentActivity.findViewById(R.id.container));

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

@Override
protected ObservableListView createScrollable() {
    ObservableListView listView = (ObservableListView) findViewById(R.id.scroll);
    listView.setScrollViewCallbacks(this);
    setDummyDataFew(listView);
    return listView;
}
 

@Override
protected ObservableListView createScrollable() {
    ObservableListView listView = (ObservableListView) findViewById(R.id.scroll);
    listView.setScrollViewCallbacks(this);
    setDummyDataWithHeader(listView, mFlexibleSpaceImageHeight);
    return listView;
}
 

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

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

    mImageView = findViewById(R.id.image);
    mToolbarView = findViewById(R.id.toolbar);
    mToolbarView.setBackgroundColor(ScrollUtils.getColorWithAlpha(0, getResources().getColor(R.color.primary)));

    mParallaxImageHeight = getResources().getDimensionPixelSize(R.dimen.parallax_image_height);

    mListView = (ObservableListView) findViewById(R.id.list);
    mListView.setScrollViewCallbacks(this);
    // Set padding view for ListView. This is the flexible space.
    View paddingView = new View(this);
    AbsListView.LayoutParams lp = new AbsListView.LayoutParams(AbsListView.LayoutParams.MATCH_PARENT,
            mParallaxImageHeight);
    paddingView.setLayoutParams(lp);

    // This is required to disable header's list selector effect
    paddingView.setClickable(true);

    mListView.addHeaderView(paddingView);
    setDummyData(mListView);

    // mListBackgroundView makes ListView's background except header view.
    mListBackgroundView = findViewById(R.id.list_background);
}
 

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

    Activity parentActivity = getActivity();
    final ObservableListView listView = (ObservableListView) view.findViewById(R.id.scroll);
    setDummyDataWithHeader(listView, inflater.inflate(R.layout.padding, listView, false));

    if (parentActivity instanceof ObservableScrollViewCallbacks) {
        // Scroll to the specified position after layout
        Bundle args = getArguments();
        if (args != null && args.containsKey(ARG_INITIAL_POSITION)) {
            final int initialPosition = args.getInt(ARG_INITIAL_POSITION, 0);
            ScrollUtils.addOnGlobalLayoutListener(listView, new Runnable() {
                @Override
                public void run() {
                    // scrollTo() doesn't work, should use setSelection()
                    listView.setSelection(initialPosition);
                }
            });
        }

        // 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
        listView.setTouchInterceptionViewGroup((ViewGroup) parentActivity.findViewById(R.id.root));

        listView.setScrollViewCallbacks((ObservableScrollViewCallbacks) parentActivity);
    }
    return view;
}
 

@Override
protected ObservableListView createScrollable() {
    ObservableListView listView = (ObservableListView) findViewById(R.id.scroll);
    listView.setScrollViewCallbacks(this);
    setDummyDataWithHeader(listView, mFlexibleSpaceImageHeight);
    return listView;
}
 

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

    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);

    mListView = (ObservableListView) findViewById(R.id.list);
    mListView.setScrollViewCallbacks(this);

    LayoutInflater inflater = LayoutInflater.from(this);
    mListView.addHeaderView(inflater.inflate(R.layout.padding, mListView, false)); // toolbar
    mListView.addHeaderView(inflater.inflate(R.layout.padding, mListView, false)); // sticky view
    setDummyData(mListView);

    ScrollUtils.addOnGlobalLayoutListener(mListView, new Runnable() {
        @Override
        public void run() {
            int count = mListView.getAdapter().getCount() - 1;
            int position = count == 0 ? 1 : count > 0 ? count : 0;
            mListView.smoothScrollToPosition(position);
            mListView.setSelection(position);
        }
    });
}
 

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

    ObservableListView listView = (ObservableListView) view.findViewById(R.id.list);
    listView.setScrollViewCallbacks(this);
    setDummyData(listView);

    return view;
}
 

private void propagateToolbarState(boolean isShown) {
    int toolbarHeight = mToolbarView.getHeight();

    // Set scrollY for the fragments that are not created yet
    mPagerAdapter.setScrollY(isShown ? 0 : toolbarHeight);

    // Set scrollY for the active fragments
    for (int i = 0; i < mPagerAdapter.getCount(); i++) {
        // Skip current item
        if (i == mPager.getCurrentItem()) {
            continue;
        }

        // Skip destroyed or not created item
        Fragment f = mPagerAdapter.getItemAt(i);
        if (f == null) {
            continue;
        }

        ObservableListView listView = (ObservableListView) f.getView().findViewById(R.id.list);
        if (isShown) {
            // Scroll up
            if (0 < listView.getCurrentScrollY()) {
                listView.setSelection(0);
            }
        } else {
            // Scroll down (to hide padding)
            if (listView.getCurrentScrollY() < toolbarHeight) {
                listView.setSelection(1);
            }
        }
    }
}
 

@Override
public void onUpOrCancelMotionEvent(ScrollState scrollState) {
    mBaseTranslationY = 0;

    Fragment fragment = getCurrentFragment();
    if (fragment == null) {
        return;
    }
    View view = fragment.getView();
    if (view == null) {
        return;
    }

    int toolbarHeight = mToolbarView.getHeight();
    final ObservableListView listView = (ObservableListView) view.findViewById(R.id.list);
    if (scrollState == ScrollState.UP) {
        if (toolbarHeight < listView.getCurrentScrollY()) {
            hideToolbar();
        } else if (listView.getCurrentScrollY() < toolbarHeight) {
            showToolbar();
        }
    } else if (scrollState == ScrollState.DOWN) {
        if (toolbarHeight < listView.getCurrentScrollY()) {
            showToolbar();
        }
    }
}
 

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

    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);

    mListView = (ObservableListView) findViewById(R.id.list);
    mListView.setScrollViewCallbacks(this);

    LayoutInflater inflater = LayoutInflater.from(this);
    mListView.addHeaderView(inflater.inflate(R.layout.observable_scroll_view_padding, null)); // toolbar
    mListView.addHeaderView(inflater.inflate(R.layout.observable_scroll_view_padding, null)); // sticky view
    List<String> items = new ArrayList<String>();
    for (int i = 1; i <= 100; i++) {
        items.add("Item " + i);
    }
    mListView.setAdapter(new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, items));

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

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

    mFlexibleSpaceImageHeight = getResources().getDimensionPixelSize(R.dimen.flexible_space_image_height);
    mFlexibleSpaceShowFabOffset = getResources().getDimensionPixelSize(R.dimen.flexible_space_show_fab_offset);
    mActionBarSize = getActionBarSize();
    mImageView = findViewById(R.id.image);
    mOverlayView = findViewById(R.id.overlay);
    ObservableListView listView = (ObservableListView) findViewById(R.id.list);
    listView.setScrollViewCallbacks(this);

    // Set padding view for ListView. This is the flexible space.
    View paddingView = new View(this);
    AbsListView.LayoutParams lp = new AbsListView.LayoutParams(AbsListView.LayoutParams.MATCH_PARENT,
            mFlexibleSpaceImageHeight);
    paddingView.setLayoutParams(lp);

    // This is required to disable header's list selector effect
    paddingView.setClickable(true);

    listView.addHeaderView(paddingView);
    setDummyData(listView);
    mTitleView = (TextView) findViewById(R.id.title);
    mTitleView.setText(getTitle());
    setTitle(null);
    mFab = findViewById(R.id.fab);
    mFab.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Toast.makeText(FlexibleSpaceWithImageListViewActivity.this, "FAB is clicked", Toast.LENGTH_SHORT).show();
        }
    });
    mFabMargin = getResources().getDimensionPixelSize(R.dimen.margin_standard);
    ViewHelper.setScaleX(mFab, 0);
    ViewHelper.setScaleY(mFab, 0);

    // mListBackgroundView makes ListView's background except header view.
    mListBackgroundView = findViewById(R.id.list_background);
}