android.support.v7.widget.OrientationHelper#getStartAfterPadding ( )源码实例Demo

下面列出了android.support.v7.widget.OrientationHelper#getStartAfterPadding ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。

源代码1 项目： YCScrollPager 文件： ScrollPageHelper.java

private int distanceToStart(View targetView, @NonNull OrientationHelper helper, boolean fromEnd) {
    if (isRtlHorizontal && !fromEnd) {
        return distanceToEnd(targetView, helper, true);
    }

    return helper.getDecoratedStart(targetView) - helper.getStartAfterPadding();
}

源代码2 项目： Ticket-Analysis 文件： RecyclerViewPositionHelper.java

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;
}

源代码3 项目： Orin 文件： GravityDelegate.java

private int distanceToStart(View targetView, OrientationHelper helper, boolean fromEnd) {
    if (isRtlHorizontal && !fromEnd) {
        return distanceToEnd(targetView, helper, true);
    }

    return helper.getDecoratedStart(targetView) - helper.getStartAfterPadding();
}

源代码4 项目： YCBanner 文件： GalleryLayoutManager.java

/**
 * @param child
 * @param pendingOffset child view will scroll by
 * @return
 */
private int calculateDistanceCenter(View child, float pendingOffset) {
    OrientationHelper orientationHelper = getOrientationHelper();
    int parentCenter = (orientationHelper.getEndAfterPadding() - orientationHelper.getStartAfterPadding()) / 2 + orientationHelper.getStartAfterPadding();
    if (mOrientation == GalleryLayoutManager.HORIZONTAL) {
        return (int) (child.getWidth() / 2 - pendingOffset + child.getLeft() - parentCenter);
    } else {
        return (int) (child.getHeight() / 2 - pendingOffset + child.getTop() - parentCenter);
    }

}

源代码5 项目： YCBanner 文件： ScrollPageHelper.java

private int distanceToStart(View targetView, @NonNull OrientationHelper helper, boolean fromEnd) {
    if (isRtlHorizontal && !fromEnd) {
        return distanceToEnd(targetView, helper, true);
    }

    return helper.getDecoratedStart(targetView) - helper.getStartAfterPadding();
}

源代码6 项目： MangoBloggerAndroidApp 文件： GravitySnapHelper.java

private int distanceToStart(View targetView, OrientationHelper helper, boolean fromEnd) {
    if (mIsRtlHorizontal && !fromEnd) {
        return distanceToEnd(targetView, helper, true);
    }

    return helper.getDecoratedStart(targetView) - helper.getStartAfterPadding();
}

源代码7 项目： YCRefreshView 文件： ScrollPageHelper.java

private int distanceToStart(View targetView, @NonNull OrientationHelper helper, boolean fromEnd) {
    if (isRtlHorizontal && !fromEnd) {
        return distanceToEnd(targetView, helper, true);
    }

    return helper.getDecoratedStart(targetView) - helper.getStartAfterPadding();
}

源代码8 项目： GalleryLayoutManager 文件： GalleryLayoutManager.java

/**
 * @param child
 * @param pendingOffset child view will scroll by
 * @return
 */
private int calculateDistanceCenter(View child, float pendingOffset) {
    OrientationHelper orientationHelper = getOrientationHelper();
    int parentCenter = (orientationHelper.getEndAfterPadding() - orientationHelper.getStartAfterPadding()) / 2 + orientationHelper.getStartAfterPadding();
    if (mOrientation == GalleryLayoutManager.HORIZONTAL) {
        return (int) (child.getWidth() / 2 - pendingOffset + child.getLeft() - parentCenter);
    } else {
        return (int) (child.getHeight() / 2 - pendingOffset + child.getTop() - parentCenter);
    }

}

源代码9 项目： date_picker_converter 文件： GravitySnapHelper.java

private int distanceToStart(View targetView, OrientationHelper helper, boolean fromEnd) {
    if (isRtlHorizontal && !fromEnd) {
        return distanceToEnd(targetView, helper, true);
    }

    return helper.getDecoratedStart(targetView) - helper.getStartAfterPadding();
}

源代码10 项目： SuntimesWidget 文件： GravitySnapHelper.java

private int getDistanceToStart(View targetView, @NonNull OrientationHelper helper) {
    int distance;
    // If we don't care about padding, just snap to the start of the view
    if (!snapToPadding) {
        int childStart = helper.getDecoratedStart(targetView);
        if (childStart >= helper.getStartAfterPadding() / 2) {
            distance = childStart - helper.getStartAfterPadding();
        } else {
            distance = childStart;
        }
    } else {
        distance = helper.getDecoratedStart(targetView) - helper.getStartAfterPadding();
    }
    return distance;
}

源代码11 项目： PullLoadView 文件： RecyclerViewPositionHelper.java

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;
}

源代码12 项目： KAM 文件： RecyclerViewPositionHelper.java

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;
}

源代码13 项目： mugen 文件： RecyclerViewPositionHelper.java

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;
}

源代码14 项目： Dagger2-Sample 文件： PagerSnapHelper.java

private int distanceToStart(View targetView, OrientationHelper helper) {
    return helper.getDecoratedStart(targetView) - helper.getStartAfterPadding();
}

源代码15 项目： YCBanner 文件： ScrollSnapHelper.java

private int distanceToStart(View targetView, OrientationHelper helper) {
    return helper.getDecoratedStart(targetView) - helper.getStartAfterPadding();
}

源代码16 项目： YCBanner 文件： ScrollLinearHelper.java

private int distanceToStart(View targetView, OrientationHelper helper) {
    return helper.getDecoratedStart(targetView) - helper.getStartAfterPadding();
}

源代码17 项目： SimpleRecyclerView 文件： StartSnapHelper.java

private int distanceToStart(View targetView, OrientationHelper helper) {
  return helper.getDecoratedStart(targetView) - helper.getStartAfterPadding() - cellSpacing / 2;
}

源代码18 项目： Capstone-Project 文件： StartSnapHelper.java

private int distanceToStart(View targetView, OrientationHelper helper) {
    return helper.getDecoratedStart(targetView) - helper.getStartAfterPadding();
}

源代码19 项目： SuntimesWidget 文件： GravitySnapHelper.java

/**
 * Returns the first view that we should snap to.
 *
 * @param layoutManager the RecyclerView's LayoutManager
 * @param helper        orientation helper to calculate view sizes
 * @param gravity       gravity to find the closest view
 * @return the first view in the LayoutManager to snap to, or null if we shouldn't snap to any
 */
@Nullable
private View findView(@NonNull RecyclerView.LayoutManager layoutManager,
                      @NonNull OrientationHelper helper,
                      int gravity,
                      boolean checkEdgeOfList) {

    if (layoutManager.getChildCount() == 0 || !(layoutManager instanceof LinearLayoutManager)) {
        return null;
    }

    final LinearLayoutManager lm = (LinearLayoutManager) layoutManager;

    // If we're at an edge of the list, we shouldn't snap
    // to avoid having the last item not completely visible.
    if (checkEdgeOfList && (isAtEdgeOfList(lm) && !snapLastItem)) {
        return null;
    }

    View edgeView = null;
    int distanceToTarget = Integer.MAX_VALUE;
    final int center;
    if (layoutManager.getClipToPadding()) {
        center = helper.getStartAfterPadding() + helper.getTotalSpace() / 2;
    } else {
        center = helper.getEnd() / 2;
    }

    final boolean snapToStart = (gravity == Gravity.START && !isRtl)
            || (gravity == Gravity.END && isRtl);

    final boolean snapToEnd = (gravity == Gravity.START && isRtl)
            || (gravity == Gravity.END && !isRtl);

    for (int i = 0; i < lm.getChildCount(); i++) {
        View currentView = lm.getChildAt(i);
        int currentViewDistance;
        if (snapToStart) {
            if (!snapToPadding) {
                currentViewDistance = Math.abs(helper.getDecoratedStart(currentView));
            } else {
                currentViewDistance = Math.abs(helper.getStartAfterPadding()
                        - helper.getDecoratedStart(currentView));
            }
        } else if (snapToEnd) {
            if (!snapToPadding) {
                currentViewDistance = Math.abs(helper.getDecoratedEnd(currentView)
                        - helper.getEnd());
            } else {
                currentViewDistance = Math.abs(helper.getEndAfterPadding()
                        - helper.getDecoratedEnd(currentView));
            }
        } else {
            currentViewDistance = Math.abs(helper.getDecoratedStart(currentView)
                    + (helper.getDecoratedMeasurement(currentView) / 2) - center);
        }
        if (currentViewDistance < distanceToTarget) {
            distanceToTarget = currentViewDistance;
            edgeView = currentView;
        }
    }
    return edgeView;
}

方法所在类

android.support.v7.widget.OrientationHelper