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- Moved all subclassing methods out to a separate header "NIPagingScrollView+Subclassing.h" - The offset is not modified if the user is dragging the paging scroll view while the data is reloaded. - We now safely handle end-of-animation notifications. No longer using a sketchy timer. - Added more support for modifying the behavior of the paging scroll view.
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src/pagingscrollview/src/NIPagingScrollView+Subclassing.h
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| // | ||
| // Copyright 2011-2012 Jeff Verkoeyen | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
| // | ||
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| #import "NIPagingScrollView.h" | ||
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| @interface NIPagingScrollView (Subclassing) | ||
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| // Meant to be subclassed. Default implementations are stubs. | ||
| - (void)willDisplayPage:(UIView<NIPagingScrollViewPage> *)pageView; | ||
| - (void)didRecyclePage:(UIView<NIPagingScrollViewPage> *)pageView; | ||
| - (void)didReloadNumberOfPages; | ||
| - (void)didChangeCenterPageIndexFrom:(NSInteger)from to:(NSInteger)to; | ||
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| // Meant to be subclassed. | ||
| - (UIView<NIPagingScrollViewPage>* )loadPageAtIndex:(NSInteger)pageIndex; | ||
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| // Not meant to be subclassed. | ||
| - (void)setCenterPageIndexIvar:(NSInteger)centerPageIndex; | ||
| - (void)recyclePageAtIndex:(NSInteger)pageIndex; | ||
| - (void)displayPageAtIndex:(NSInteger)pageIndex; | ||
| - (CGFloat)pageScrollableDimension; | ||
| - (void)layoutVisiblePages; | ||
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| @end | ||
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| /** | ||
| * Called before the page is about to be shown and after its frame has been set. | ||
| * | ||
| * Meant to be subclassed. By default this method does nothing. | ||
| * | ||
| * @fn NIPagingScrollView::willDisplayPage: | ||
| */ | ||
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| /** | ||
| * Called immediately after the page is removed from the paging scroll view. | ||
| * | ||
| * Meant to be subclassed. By default this method does nothing. | ||
| * | ||
| * @fn NIPagingScrollView::didRecyclePage: | ||
| */ | ||
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| /** | ||
| * Called immediately after the data source has been queried for its number of | ||
| * pages. | ||
| * | ||
| * Meant to be subclassed. By default this method does nothing. | ||
| * | ||
| * @fn NIPagingScrollView::didReloadNumberOfPages | ||
| */ | ||
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| /** | ||
| * Called when the visible page has changed. | ||
| * | ||
| * Meant to be subclassed. By default this method does nothing. | ||
| * | ||
| * @fn NIPagingScrollView::didChangeCenterPageIndexFrom:to: | ||
| */ | ||
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| /** | ||
| * Called when a page needs to be loaded before it is displayed. | ||
| * | ||
| * By default this method asks the data source for the page at the given index. | ||
| * A subclass may chose to modify the page index using a transformation method | ||
| * before calling super. | ||
| * | ||
| * @fn NIPagingScrollView::loadPageAtIndex: | ||
| */ | ||
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| /** | ||
| * Sets the centerPageIndex ivar without side effects. | ||
| * | ||
| * @fn NIPagingScrollView::setCenterPageIndexIvar: | ||
| */ | ||
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| /** | ||
| * Recycles the page at the given index. | ||
| * | ||
| * @fn NIPagingScrollView::recyclePageAtIndex: | ||
| */ | ||
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| /** | ||
| * Displays the page at the given index. | ||
| * | ||
| * @fn NIPagingScrollView::displayPageAtIndex: | ||
| */ | ||
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| /** | ||
| * Returns the page's scrollable dimension. | ||
| * | ||
| * This is the width of the paging scroll view for horizontal scroll views, or | ||
| * the height of the paging scroll view for vertical scroll views. | ||
| * | ||
| * @fn NIPagingScrollView::pageScrollableDimension | ||
| */ | ||
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| /** | ||
| * Updates the frames of all visible pages based on their page indices. | ||
| * | ||
| * @fn NIPagingScrollView::layoutVisiblePages | ||
| */ |
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