Examples with LEFT android.support.v7.widget.helper.ItemTouchHelper.LEFT used on opensource projects

Example 31 with LEFT

use of android.support.v7.widget.helper.ItemTouchHelper.LEFT in project boilerplate by koush.

the class ScrollingToolbarLayout method enableToolbarScrollOff.

public void enableToolbarScrollOff(final IHeaderRecyclerView headerRecyclerView, final Fragment fragment) {
    scrollOffEnabled = true;
    int extra;
    View paddingView;
    if (getChildCount() == 3)
        paddingView = getChildAt(0);
    else
        paddingView = getChildAt(getChildCount() - 1);
    if (paddingView.getLayoutParams().height > 0) {
        extra = paddingView.getLayoutParams().height;
    } else {
        // apparently this is the max size allowed
        final int SIZE_MAX = 1073741823;
        paddingView.measure(MeasureSpec.makeMeasureSpec(SIZE_MAX, MeasureSpec.AT_MOST), MeasureSpec.makeMeasureSpec(SIZE_MAX, MeasureSpec.AT_MOST));
        extra = paddingView.getMeasuredHeight();
    }
    AbsListView.LayoutParams lp = new AbsListView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, extra);
    FrameLayout frameLayout = new FrameLayout(getContext());
    frameLayout.setLayoutParams(lp);
    headerRecyclerView.addHeaderView(0, frameLayout);
    headerRecyclerView.addOnScrollListener(new RecyclerView.OnScrollListener() {

        @Override
        public void onScrollStateChanged(RecyclerView absListView, int scrollState) {
            // when scrolling stops, and the toolbar is only partially scrolled off, force to scroll bar in completely
            if (scrollState != RecyclerView.SCROLL_STATE_IDLE)
                return;
            if (absListView.getChildCount() < 1)
                return;
            int firstVisibleItem = headerRecyclerView.findFirstVisibleItemPosition();
            if (firstVisibleItem != 0)
                return;
            final View toolbarContainer = getChildAt(getChildCount() - 1);
            if (toolbarContainer.getTranslationY() <= -toolbarContainer.getHeight() || (existingToolbarYAnimation != null && existingToolbarYEnd <= toolbarContainer.getHeight()))
                return;
            toolbarScrollIn();
        }

        @Override
        public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
            if (recyclerView.getChildCount() < 1)
                return;
            if (fragment != null && !fragment.getUserVisibleHint())
                return;
            // cancelToolbarScroll();
            final View firstView = recyclerView.getChildAt(0);
            final View toolbarContainer = getChildAt(getChildCount() - 1);
            final View backdrop;
            if (getChildCount() == 3)
                backdrop = getChildAt(0);
            else
                backdrop = null;
            final int toolbarHeight = toolbarContainer.getHeight();
            int firstVisibleItem = headerRecyclerView.findFirstVisibleItemPosition();
            if (backdrop != null) {
                int newBackdropHeight;
                int backdropHeight = getResources().getDimensionPixelSize(R.dimen.icon_list_drawer_activity_backdrop_height);
                if (firstVisibleItem >= 1) {
                    newBackdropHeight = toolbarHeight;
                } else {
                    newBackdropHeight = firstView.getTop() + backdropHeight;
                }
                newBackdropHeight = Math.max(newBackdropHeight, toolbarHeight);
                FrameLayout.LayoutParams lp = (FrameLayout.LayoutParams) backdrop.getLayoutParams();
                lp.height = newBackdropHeight;
                // another option is to use y translation to not do parallax
                backdrop.setLayoutParams(lp);
                if (newBackdropHeight / (float) backdropHeight < .5f) {
                    toolbarFadeToPrimary();
                } else {
                    toolbarFadeToTranslucent();
                }
            }
            if (firstVisibleItem == 0) {
                int remainder = firstView.getHeight() + firstView.getTop();
                // if there's less than toolbar height left, start scrolling off.
                if (remainder < toolbarHeight) {
                    remainder = toolbarHeight - remainder;
                    if (existingToolbarYAnimation == null) {
                        float diff = -remainder - toolbarContainer.getTranslationY();
                        if (false && Math.abs(diff) > toolbarHeight / 4) {
                            if (toolbarContainer.getTranslationY() < -remainder) {
                                // scrolling down
                                toolbarScrollIn();
                            } else {
                                // scrolling up
                                toolbarScrollOut();
                            }
                        } else {
                            toolbarContainer.setTranslationY(-remainder);
                        }
                    }
                    if (backdrop != null)
                        backdrop.setTranslationY(-remainder);
                } else {
                    cancelToolbarScroll();
                    toolbarContainer.setTranslationY(0);
                    // toolbarScrollIn();
                    if (backdrop != null)
                        backdrop.setTranslationY(0);
                }
                return;
            }
            if (firstVisibleItem == 1) {
                cancelToolbarScroll();
                toolbarContainer.setTranslationY(-toolbarHeight);
            } else {
                toolbarScrollOut();
            }
            if (backdrop != null)
                backdrop.setTranslationY(-toolbarHeight);
        }
    });
    if (getChildCount() == 3)
        toolbarFadeToTranslucent();
}

Example 32 with LEFT

use of android.support.v7.widget.helper.ItemTouchHelper.LEFT in project instructure-android by instructure.

the class DividerItemDecoration method drawHorizontal.

public void drawHorizontal(Canvas c, RecyclerView parent) {
    final int top = parent.getPaddingTop();
    final int bottom = parent.getHeight() - parent.getPaddingBottom();
    final int childCount = parent.getChildCount();
    for (int i = 0; i < childCount; i++) {
        final View child = parent.getChildAt(i);
        final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();
        final int left = child.getRight() + params.rightMargin;
        final int right = left + mDivider.getIntrinsicHeight();
        mDivider.setBounds(left, top, right, bottom);
        mDivider.draw(c);
    }
}

Example 33 with LEFT

use of android.support.v7.widget.helper.ItemTouchHelper.LEFT in project instructure-android by instructure.

the class DividerDecoration method onDrawOver.

@Override
public void onDrawOver(Canvas c, RecyclerView parent, RecyclerView.State state) {
    if (mDivider == null) {
        super.onDrawOver(c, parent, state);
        return;
    }
    // Initialization needed to avoid compiler warning
    int left = 0, right = 0, top = 0, bottom = 0, size;
    int orientation = getOrientation(parent);
    int childCount = parent.getChildCount();
    if (orientation == LinearLayoutManager.VERTICAL) {
        size = mDivider.getIntrinsicHeight();
        left = parent.getPaddingLeft();
        right = parent.getWidth() - parent.getPaddingRight();
    } else {
        // horizontal
        size = mDivider.getIntrinsicWidth();
        top = parent.getPaddingTop();
        bottom = parent.getHeight() - parent.getPaddingBottom();
    }
    for (int i = 1; i < childCount; i++) {
        View child = parent.getChildAt(i);
        RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();
        if (orientation == LinearLayoutManager.VERTICAL) {
            top = child.getTop() - params.topMargin;
            bottom = top + size;
        } else {
            // horizontal
            left = child.getLeft() - params.leftMargin;
            right = left + size;
        }
        mDivider.setBounds(left, top, right, bottom);
        mDivider.draw(c);
    }
}

Example 34 with LEFT

use of android.support.v7.widget.helper.ItemTouchHelper.LEFT in project instructure-android by instructure.

the class DividerItemDecoration method drawHorizontal.

public void drawHorizontal(Canvas c, RecyclerView parent) {
    final int top = parent.getPaddingTop();
    final int bottom = parent.getHeight() - parent.getPaddingBottom();
    final int childCount = parent.getChildCount();
    for (int i = 0; i < childCount; i++) {
        final View child = parent.getChildAt(i);
        final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child.getLayoutParams();
        final int left = child.getRight() + params.rightMargin;
        final int right = left + mDivider.getIntrinsicHeight();
        mDivider.setBounds(left, top, right, bottom);
        mDivider.draw(c);
    }
}

Example 35 with LEFT

use of android.support.v7.widget.helper.ItemTouchHelper.LEFT in project instructure-android by instructure.

the class ExpandableGridSpacingDecorator method getItemOffsets.

@Override
public void getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) {
    super.getItemOffsets(outRect, view, parent, state);
    final BaseExpandableRecyclerAdapter adapter = (BaseExpandableRecyclerAdapter) parent.getAdapter();
    final int position = parent.getChildAdapterPosition(view);
    final boolean isHeader = adapter.isPositionGroupHeader(position);
    final RecyclerView.ViewHolder viewHolder = parent.getChildViewHolder(view);
    if (position == RecyclerView.NO_POSITION) {
        // If this ItemDecoration does not affect the positioning of item views,
        AlphaAnimation anim = new AlphaAnimation(1.0f, 0.0f);
        anim.setDuration(175);
        viewHolder.itemView.startAnimation(anim);
        viewHolder.itemView.setVisibility(View.GONE);
        return;
    } else {
        viewHolder.itemView.setVisibility(View.VISIBLE);
    }
    if (isHeader) {
        return;
    }
    final int spanCount = getTotalSpan(parent);
    // the visual position
    final int pseudoGroupPosition = adapter.getGroupVisualPosition(position);
    final int rows = ((adapter.getGroupItemCount(adapter.getGroup(pseudoGroupPosition)) - 1) / spanCount) + 1;
    final int leftRightEdge = getIsEdgeType(spanCount, position, pseudoGroupPosition);
    final int topBottomEdge = getIsTopBottomEdgeType(spanCount, rows, position, pseudoGroupPosition);
    if (spanCount == 1) {
        outRect.left = spacing;
        outRect.right = spacing;
    } else {
        if (leftRightEdge == LEFT) {
            outRect.left = spacing;
            outRect.right = halfSpacing;
        } else if (leftRightEdge == RIGHT) {
            outRect.left = halfSpacing;
            outRect.right = spacing;
        } else {
            outRect.left = halfSpacing;
            outRect.right = halfSpacing;
        }
    }
    if (rows == 1) {
        outRect.top = spacing;
        outRect.bottom = spacing;
    } else {
        if (topBottomEdge == TOP) {
            outRect.top = spacing;
            outRect.bottom = halfSpacing;
        } else if (topBottomEdge == BOTTOM) {
            outRect.top = halfSpacing;
            outRect.bottom = spacing;
        } else {
            outRect.top = halfSpacing;
            outRect.bottom = halfSpacing;
        }
    }
}