Java Code Examples for android.support.v7.widget.OrientationHelper#createVerticalHelper()

The following examples show how to use android.support.v7.widget.OrientationHelper#createVerticalHelper() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: ItemDragHelper.java    From MultiItem with Apache License 2.0 6 votes vote down vote up 
/**
     * 当item位置变换，滚动recycler到正确的位置
     * TODO: 2017/2/21 0021 整理更优雅的写法  还有scrollToPosition(0)是否必要？
     */
    private void scrollToRightPositionWhenItemChanged(RecyclerView recyclerView, View itemView, int itemPos) {
        final RecyclerView.LayoutManager layoutManager = recyclerView.getLayoutManager();
        if (layoutManager instanceof ItemTouchHelper.ViewDropHandler) {
            OrientationHelper helper = OrientationHelper.createVerticalHelper(layoutManager);
            int start = helper.getDecoratedStart(itemView);
            int end = helper.getDecoratedEnd(itemView);
            ((LinearLayoutManager) layoutManager).scrollToPositionWithOffset(
                    itemPos, lastItemPos > itemPos ? start : end - itemViewHeight);
//                System.out.println(lastItemPos + "-" + childPos + "OrientationHelperOrientationHelper:"
//                        + height + "==" + itemViewHeight + "=||=" + start + "===" + end + "||||||" + myStart + "===" + itemTargetView.getHeight() );
        }
        if (lastItemPos == 0 || itemPos == 0) {
            recyclerView.scrollToPosition(0);
        }
    }
Example 2
Source File: RecyclerViewPositionHelper.java    From mugen with Apache License 2.0 5 votes vote down vote up 
View findOneVisibleChild(int fromIndex, int toIndex, boolean completelyVisible,
                         boolean acceptPartiallyVisible) {
    OrientationHelper helper;
    if (layoutManager.canScrollVertically()) {
        helper = OrientationHelper.createVerticalHelper(layoutManager);
    } else {
        helper = OrientationHelper.createHorizontalHelper(layoutManager);
    }

    final int start = helper.getStartAfterPadding();
    final int end = helper.getEndAfterPadding();
    final int next = toIndex > fromIndex ? 1 : -1;
    View partiallyVisible = null;
    for (int i = fromIndex; i != toIndex; i += next) {
        final View child = layoutManager.getChildAt(i);
        final int childStart = helper.getDecoratedStart(child);
        final int childEnd = helper.getDecoratedEnd(child);
        if (childStart < end && childEnd > start) {
            if (completelyVisible) {
                if (childStart >= start && childEnd <= end) {
                    return child;
                } else if (acceptPartiallyVisible && partiallyVisible == null) {
                    partiallyVisible = child;
                }
            } else {
                return child;
            }
        }
    }
    return partiallyVisible;
}
Example 3
Source File: RecyclerViewPositionHelper.java    From Ticket-Analysis with MIT License 5 votes vote down vote up 
View findOneVisibleChild(int fromIndex, int toIndex, boolean completelyVisible,
                         boolean acceptPartiallyVisible) {
    OrientationHelper helper;
    if (layoutManager.canScrollVertically()) {
        helper = OrientationHelper.createVerticalHelper(layoutManager);
    } else {
        helper = OrientationHelper.createHorizontalHelper(layoutManager);
    }

    final int start = helper.getStartAfterPadding();
    final int end = helper.getEndAfterPadding();
    final int next = toIndex > fromIndex ? 1 : -1;
    View partiallyVisible = null;
    for (int i = fromIndex; i != toIndex; i += next) {
        final View child = layoutManager.getChildAt(i);
        final int childStart = helper.getDecoratedStart(child);
        final int childEnd = helper.getDecoratedEnd(child);
        if (childStart < end && childEnd > start) {
            if (completelyVisible) {
                if (childStart >= start && childEnd <= end) {
                    return child;
                } else if (acceptPartiallyVisible && partiallyVisible == null) {
                    partiallyVisible = child;
                }
            } else {
                return child;
            }
        }
    }
    return partiallyVisible;
}
Example 4
Source File: RecyclerViewPositionHelper.java    From KAM with GNU General Public License v3.0 5 votes vote down vote up 
View findOneVisibleChild(int fromIndex, int toIndex, boolean completelyVisible, boolean acceptPartiallyVisible) {
    OrientationHelper helper;
    if (layoutManager.canScrollVertically()) {
        helper = OrientationHelper.createVerticalHelper(layoutManager);
    } else {
        helper = OrientationHelper.createHorizontalHelper(layoutManager);
    }

    final int start = helper.getStartAfterPadding();
    final int end = helper.getEndAfterPadding();
    final int next = toIndex > fromIndex ? 1 : -1;
    View partiallyVisible = null;
    for (int i = fromIndex; i != toIndex; i += next) {
        final View child = layoutManager.getChildAt(i);
        final int childStart = helper.getDecoratedStart(child);
        final int childEnd = helper.getDecoratedEnd(child);
        if (childStart < end && childEnd > start) {
            if (completelyVisible) {
                if (childStart >= start && childEnd <= end) {
                    return child;
                } else if (acceptPartiallyVisible && partiallyVisible == null) {
                    partiallyVisible = child;
                }
            } else {
                return child;
            }
        }
    }
    return partiallyVisible;
}
Example 5
Source File: GalleryLayoutManager.java    From YCBanner with Apache License 2.0 5 votes vote down vote up 
private OrientationHelper getOrientationHelper() {
    if (mOrientation == HORIZONTAL) {
        if (mHorizontalHelper == null) {
            mHorizontalHelper = OrientationHelper.createHorizontalHelper(this);
        }
        return mHorizontalHelper;
    } else {
        if (mVerticalHelper == null) {
            mVerticalHelper = OrientationHelper.createVerticalHelper(this);
        }
        return mVerticalHelper;
    }
}
Example 6
Source File: ScrollPageHelper.java    From YCBanner with Apache License 2.0 5 votes vote down vote up 
@NonNull
private OrientationHelper getVerticalHelper(@NonNull RecyclerView.LayoutManager layoutManager) {
    if (mVerticalHelper == null) {
        mVerticalHelper = OrientationHelper.createVerticalHelper(layoutManager);
    }
    return mVerticalHelper;
}
Example 7
Source File: ScrollLinearHelper.java    From YCBanner with Apache License 2.0 5 votes vote down vote up 
@NonNull
private OrientationHelper getVerticalHelper(@NonNull RecyclerView.LayoutManager layoutManager) {
    if (mVerticalHelper == null) {
        mVerticalHelper = OrientationHelper.createVerticalHelper(layoutManager);
    }
    return mVerticalHelper;
}
Example 8
Source File: RecyclerViewPositionHelper.java    From PullLoadView with Apache License 2.0 5 votes vote down vote up 
public View findOneVisibleChild(int fromIndex, int toIndex, boolean completelyVisible,
                         boolean acceptPartiallyVisible) {
    OrientationHelper helper;
    if (layoutManager.canScrollVertically()) {
        helper = OrientationHelper.createVerticalHelper(layoutManager);
    } else {
        helper = OrientationHelper.createHorizontalHelper(layoutManager);
    }

    final int start = helper.getStartAfterPadding();
    final int end = helper.getEndAfterPadding();
    final int next = toIndex > fromIndex ? 1 : -1;
    View partiallyVisible = null;
    for (int i = fromIndex; i != toIndex; i += next) {
        final View child = layoutManager.getChildAt(i);
        final int childStart = helper.getDecoratedStart(child);
        final int childEnd = helper.getDecoratedEnd(child);
        if (childStart < end && childEnd > start) {
            if (completelyVisible) {
                if (childStart >= start && childEnd <= end) {
                    return child;
                } else if (acceptPartiallyVisible && partiallyVisible == null) {
                    partiallyVisible = child;
                }
            } else {
                return child;
            }
        }
    }
    return partiallyVisible;
}
Example 9
Source File: ScrollPageHelper.java    From YCScrollPager with Apache License 2.0 5 votes vote down vote up 
@NonNull
private OrientationHelper getVerticalHelper(@NonNull RecyclerView.LayoutManager layoutManager) {
    if (mVerticalHelper == null) {
        mVerticalHelper = OrientationHelper.createVerticalHelper(layoutManager);
    }
    return mVerticalHelper;
}
Example 10
Source File: EndlessRecyclerOnScrollListener.java    From iGap-Android with GNU Affero General Public License v3.0 5 votes vote down vote up 
private View findOneVisibleChild(int fromIndex, int toIndex, boolean completelyVisible, boolean acceptPartiallyVisible) {
    if (mLayoutManager.canScrollVertically() != mIsOrientationHelperVertical || mOrientationHelper == null) {
        mIsOrientationHelperVertical = mLayoutManager.canScrollVertically();
        mOrientationHelper = mIsOrientationHelperVertical ? OrientationHelper.createVerticalHelper(mLayoutManager) : OrientationHelper.createHorizontalHelper(mLayoutManager);
    }

    final int start = mOrientationHelper.getStartAfterPadding();
    final int end = mOrientationHelper.getEndAfterPadding();
    final int next = toIndex > fromIndex ? 1 : -1;
    View partiallyVisible = null;
    for (int i = fromIndex; i != toIndex; i += next) {
        final View child = mLayoutManager.getChildAt(i);
        if (child != null) {
            final int childStart = mOrientationHelper.getDecoratedStart(child);
            final int childEnd = mOrientationHelper.getDecoratedEnd(child);
            if (childStart < end && childEnd > start) {
                if (completelyVisible) {
                    if (childStart >= start && childEnd <= end) {
                        return child;
                    } else if (acceptPartiallyVisible && partiallyVisible == null) {
                        partiallyVisible = child;
                    }
                } else {
                    return child;
                }
            }
        }
    }
    return partiallyVisible;
}
Example 11
Source File: ScrollPageHelper.java    From YCRefreshView with Apache License 2.0 5 votes vote down vote up 
@NonNull
private OrientationHelper getVerticalHelper(@NonNull RecyclerView.LayoutManager layoutManager) {
    if (mVerticalHelper == null) {
        mVerticalHelper = OrientationHelper.createVerticalHelper(layoutManager);
    }
    return mVerticalHelper;
}
Example 12
Source File: GalleryLayoutManager.java    From GalleryLayoutManager with Apache License 2.0 5 votes vote down vote up 
public OrientationHelper getOrientationHelper() {
    if (mOrientation == HORIZONTAL) {
        if (mHorizontalHelper == null) {
            mHorizontalHelper = OrientationHelper.createHorizontalHelper(this);
        }
        return mHorizontalHelper;
    } else {
        if (mVerticalHelper == null) {
            mVerticalHelper = OrientationHelper.createVerticalHelper(this);
        }
        return mVerticalHelper;
    }
}
Example 13
Source File: GravitySnapHelper.java    From MangoBloggerAndroidApp with Mozilla Public License 2.0 4 votes vote down vote up 
private OrientationHelper getVerticalHelper(RecyclerView.LayoutManager layoutManager) {
    if (mVerticalHelper == null) {
        mVerticalHelper = OrientationHelper.createVerticalHelper(layoutManager);
    }
    return mVerticalHelper;
}
Example 14
Source File: GravitySnapHelper.java    From SuntimesWidget with GNU General Public License v3.0 4 votes vote down vote up 
private OrientationHelper getVerticalHelper(RecyclerView.LayoutManager layoutManager) {
    if (verticalHelper == null) { // || verticalHelper.getLayoutManager() != layoutManager) {
        verticalHelper = OrientationHelper.createVerticalHelper(layoutManager);
    }
    return verticalHelper;
}
Example 15
Source File: GravitySnapHelper.java    From date_picker_converter with Apache License 2.0 4 votes vote down vote up 
private OrientationHelper getVerticalHelper(RecyclerView.LayoutManager layoutManager) {
    if (verticalHelper == null) {
        verticalHelper = OrientationHelper.createVerticalHelper(layoutManager);
    }
    return verticalHelper;
}
Example 16
Source File: StartSnapHelper.java    From Capstone-Project with MIT License 4 votes vote down vote up 
private OrientationHelper getVerticalHelper(RecyclerView.LayoutManager layoutManager) {
    if (mVerticalHelper == null) {
        mVerticalHelper = OrientationHelper.createVerticalHelper(layoutManager);
    }
    return mVerticalHelper;
}
Example 17
Source File: StartSnapHelper.java    From SimpleRecyclerView with Apache License 2.0 4 votes vote down vote up 
private OrientationHelper getVerticalHelper(RecyclerView.LayoutManager layoutManager) {
  if (verticalHelper == null) {
    verticalHelper = OrientationHelper.createVerticalHelper(layoutManager);
  }
  return verticalHelper;
}
Example 18
Source File: GravityDelegate.java    From Orin with GNU General Public License v3.0 4 votes vote down vote up 
private OrientationHelper getVerticalHelper(RecyclerView.LayoutManager layoutManager) {
    if (verticalHelper == null) {
        verticalHelper = OrientationHelper.createVerticalHelper(layoutManager);
    }
    return verticalHelper;
}
Example 19
Source File: PagerSnapHelper.java    From Dagger2-Sample with MIT License 4 votes vote down vote up 
private OrientationHelper getVerticalHelper(RecyclerView.LayoutManager layoutManager) {
    if (mVerticalHelper == null) {
        mVerticalHelper = OrientationHelper.createVerticalHelper(layoutManager);
    }
    return mVerticalHelper;
}