105 lines
3.1 KiB
Mathematica
105 lines
3.1 KiB
Mathematica
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// THLanternScrollView.m
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// TreeHole
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//
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// Created by iOS on 2023/2/14.
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// Copyright © 2023 CYH. All rights reserved.
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//
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#import "THLanternScrollView.h"
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#import "THLanternScrollItemView.h"
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@interface THLanternScrollView ()<UIScrollViewDelegate>
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@property(nonatomic, strong)THLanternScrollItemView *firsItemView;
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@property(nonatomic, strong)THLanternScrollItemView *secondItemView;
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//@property(nonatomic, strong)THLanternScrollItemView *thirdItemView;
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@property(nonatomic, strong)CADisplayLink *displayLink;
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@property(nonatomic, assign)CGFloat offsetY;
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@end
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@implementation THLanternScrollView
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- (void)setItemTapBlock:(void (^)(UIControl *))itemTapBlock {
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_itemTapBlock = itemTapBlock;
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self.firsItemView.itemTapBlock = itemTapBlock;
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self.secondItemView.itemTapBlock = itemTapBlock;
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}
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- (void)starScrollAnimate {
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if (self.displayLink && self.displayLink.paused) {
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self.displayLink.paused = NO;
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}
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//
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}
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- (void)stopScrollAnimate {
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self.displayLink.paused = YES;
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// [self.scrollView setContentOffset:CGPointZero animated:NO];
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}
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- (void)scrollToAnimate {
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// NSLog(@"000===%.2f", self.scrollView.contentOffset.y);
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self.offsetY += 1;
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self.scrollView.contentOffset = CGPointMake(0, self.offsetY);
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// NSLog(@"y===%.2f", self.scrollView.contentOffset.y);
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}
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//MARK: UIScrollViewDelegate
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- (void)scrollViewDidScroll:(UIScrollView *)scrollView; {
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CGFloat itemW = scrollView.qmui_width;
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CGFloat itemH = itemW / (1125.0/4872.0);
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// NSLog(@"scrollContentOffsetY == %.2f", scrollView.contentOffset.y);
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if (scrollView.contentOffset.y > (itemH * 1)) {
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self.offsetY = 0;
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self.scrollView.contentOffset = CGPointMake(0, 0);
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// [self.scrollView setContentOffset:CGPointZero animated:NO];
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return;
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}
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// if (scrollView.contentOffset.y > (itemW * 1.5)) {
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// self.firsItemView.qmui_top = self.thirdItemView.qmui_bottom;
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// }
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}
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//MARK: - life
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- (void)setupSubViews {
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_displayLink = [CADisplayLink displayLinkWithTarget:self selector:@selector(scrollToAnimate)];
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_displayLink.paused = YES;
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[_displayLink addToRunLoop:[NSRunLoop currentRunLoop] forMode:NSRunLoopCommonModes];
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_scrollView = [UIScrollView creatViewInSuperView:self];
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_scrollView.showsVerticalScrollIndicator = NO;
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_scrollView.delegate = self;
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_scrollView.scrollEnabled = NO;
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_firsItemView = [THLanternScrollItemView creatViewInSuperView:_scrollView];
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_secondItemView = [THLanternScrollItemView creatViewInSuperView:_scrollView];
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// _thirdItemView = [THLanternScrollItemView creatViewInSuperView:_scrollView];
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}
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- (void)layoutSubviews {
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[super layoutSubviews];
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self.scrollView.frame = self.bounds;
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// 背景图尺寸1125x4872
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CGFloat itemW = self.qmui_width;
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CGFloat itemH = itemW / (1125.0/4872.0);
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self.firsItemView.frame = CGRectMake(0, 0, itemW, itemH);
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self.secondItemView.frame = CGRectMake(0, itemH, itemW, itemH);
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//
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// self.thirdItemView.frame = CGRectMake(0, itemH * 2, itemW, itemH);
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self.scrollView.contentSize = CGSizeMake(0, itemH * 3);
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}
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@end
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