修改UI
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109
Pods/JXPagingView/Sources/JXPagerView/JXPagerListRefreshView.m
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109
Pods/JXPagingView/Sources/JXPagerView/JXPagerListRefreshView.m
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//
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// JXPagerListRefreshView.m
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// JXPagerView
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//
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// Created by jiaxin on 2018/8/28.
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// Copyright © 2018年 jiaxin. All rights reserved.
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//
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#import "JXPagerListRefreshView.h"
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@interface JXPagerListRefreshView()
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@property (nonatomic, assign) CGFloat lastScrollingListViewContentOffsetY;
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@end
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@implementation JXPagerListRefreshView
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- (instancetype)initWithDelegate:(id<JXPagerViewDelegate>)delegate listContainerType:(JXPagerListContainerType)type {
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self = [super initWithDelegate:delegate listContainerType:type];
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if (self) {
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self.mainTableView.bounces = NO;
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}
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return self;
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}
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- (void)preferredProcessListViewDidScroll:(UIScrollView *)scrollView {
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BOOL shouldProcess = YES;
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if (self.currentScrollingListView.contentOffset.y > self.lastScrollingListViewContentOffsetY) {
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//往上滚动
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}else {
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//往下滚动
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if (self.mainTableView.contentOffset.y == 0) {
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shouldProcess = NO;
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}else {
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if (self.mainTableView.contentOffset.y < self.mainTableViewMaxContentOffsetY) {
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//mainTableView的header还没有消失,让listScrollView一直为0
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if (self.currentList && [self.currentList respondsToSelector:@selector(listScrollViewWillResetContentOffset)]) {
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[self.currentList listScrollViewWillResetContentOffset];
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}
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[self setListScrollViewToMinContentOffsetY:self.currentScrollingListView];
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if (self.automaticallyDisplayListVerticalScrollIndicator) {
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self.currentScrollingListView.showsVerticalScrollIndicator = NO;
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}
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}
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}
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}
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if (shouldProcess) {
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if (self.mainTableView.contentOffset.y < self.mainTableViewMaxContentOffsetY) {
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//处于下拉刷新的状态,scrollView.contentOffset.y为负数,就重置为0
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if (self.currentScrollingListView.contentOffset.y > [self minContentOffsetYInListScrollView:self.currentScrollingListView]) {
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//mainTableView的header还没有消失,让listScrollView一直为0
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if (self.currentList && [self.currentList respondsToSelector:@selector(listScrollViewWillResetContentOffset)]) {
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[self.currentList listScrollViewWillResetContentOffset];
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}
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[self setListScrollViewToMinContentOffsetY:self.currentScrollingListView];
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if (self.automaticallyDisplayListVerticalScrollIndicator) {
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self.currentScrollingListView.showsVerticalScrollIndicator = NO;
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}
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}
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} else {
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//mainTableView的header刚好消失,固定mainTableView的位置,显示listScrollView的滚动条
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self.mainTableView.contentOffset = CGPointMake(0, self.mainTableViewMaxContentOffsetY);
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if (self.automaticallyDisplayListVerticalScrollIndicator) {
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self.currentScrollingListView.showsVerticalScrollIndicator = YES;
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}
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}
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}
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self.lastScrollingListViewContentOffsetY = self.currentScrollingListView.contentOffset.y;
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}
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- (void)preferredProcessMainTableViewDidScroll:(UIScrollView *)scrollView {
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if (self.pinSectionHeaderVerticalOffset != 0) {
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if (!(self.currentScrollingListView != nil && self.currentScrollingListView.contentOffset.y > [self minContentOffsetYInListScrollView:self.currentScrollingListView])) {
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//没有处于滚动某一个listView的状态
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if (scrollView.contentOffset.y <= 0) {
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self.mainTableView.bounces = NO;
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self.mainTableView.contentOffset = CGPointZero;
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return;
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}else {
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self.mainTableView.bounces = YES;
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}
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}
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}
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if (self.currentScrollingListView != nil && self.currentScrollingListView.contentOffset.y > [self minContentOffsetYInListScrollView:self.currentScrollingListView]) {
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//mainTableView的header已经滚动不见,开始滚动某一个listView,那么固定mainTableView的contentOffset,让其不动
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[self setMainTableViewToMaxContentOffsetY];
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}
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if (scrollView.contentOffset.y < self.mainTableViewMaxContentOffsetY) {
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//mainTableView已经显示了header,listView的contentOffset需要重置
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for (id<JXPagerViewListViewDelegate> list in self.validListDict.allValues) {
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//正在下拉刷新时,不需要重置
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UIScrollView *listScrollView = [list listScrollView];
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if (listScrollView.contentOffset.y > 0) {
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if ([list respondsToSelector:@selector(listScrollViewWillResetContentOffset)]) {
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[list listScrollViewWillResetContentOffset];
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}
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[self setListScrollViewToMinContentOffsetY:listScrollView];
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}
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}
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}
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if (scrollView.contentOffset.y > self.mainTableViewMaxContentOffsetY && self.currentScrollingListView.contentOffset.y == [self minContentOffsetYInListScrollView:self.currentScrollingListView]) {
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//当往上滚动mainTableView的headerView时,滚动到底时,修复listView往上小幅度滚动
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[self setMainTableViewToMaxContentOffsetY];
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}
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}
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@end
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