//
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// HDLCoverFlow.m
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// CoverFlow
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//
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// Created by JLCHEN on 2019/8/23.
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// Copyright © 2019 JLCHEN. All rights reserved.
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//
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#import "HDLCoverFlow.h"
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#import "HDLCoverFlowCell.h"
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#import "HDLCoverFlowLayout.h"
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@interface HDLCoverFlow()<UICollectionViewDataSource,UICollectionViewDelegate>
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@property (nonatomic,strong) UICollectionView *mUICollectionView;
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@end
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@implementation HDLCoverFlow{
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NSArray<UIView *> *viewDataArray;
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}
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- (instancetype)initWithFrame:(CGRect)frame{
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if (self = [super initWithFrame:frame]) {
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[self addSubview:self.mUICollectionView];
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}
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return self;
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}
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#pragma mark- 子控件坐标
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//当控件本身的尺寸发送改变时，系统会自动调用这个方法
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- (void)layoutSubviews{
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[super layoutSubviews];
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CGFloat personW = self.frame.size.width;
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CGFloat personH = self.frame.size.height;
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self.mUICollectionView.frame = CGRectMake(0, 0, personW, personH);
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}
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#pragma mark- 懒加载
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- (UICollectionView *)mUICollectionView{
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if (_mUICollectionView == nil) {
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HDLCoverFlowLayout *flowLayout = [[HDLCoverFlowLayout alloc]init];
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_mUICollectionView = [[UICollectionView alloc] initWithFrame:CGRectMake(0, 0,self.frame.size.width, self.frame.size.height) collectionViewLayout:flowLayout];
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_mUICollectionView.backgroundColor = [UIColor lightGrayColor];
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// 设置数据源对象
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_mUICollectionView.dataSource = self;
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_mUICollectionView.delegate = self;
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// 注册cell
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[_mUICollectionView registerClass:[HDLCoverFlowCell class] forCellWithReuseIdentifier:@"CoverFlowID"];
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}
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return _mUICollectionView;
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}
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#pragma mark - 数据源方法
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// 返回item的个数!
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- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section {
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return viewDataArray.count;
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}
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// 返回cell!
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- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {
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// 1.创建cell
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HDLCoverFlowCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"CoverFlowID" forIndexPath:indexPath];
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[cell setCustomViewCell: viewDataArray[indexPath.row]];
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// 3.返回cell
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return cell;
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}
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#pragma mark --UICollectionViewDelegate
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//UICollectionView被选中时调用的方法
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-(void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath
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{
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// // 1.创建cell
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// ZHCoverFlowCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"CoverFlowID" forIndexPath:indexPath];
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// cell.backgroundColor = [UIColor redColor];
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NSLog(@"点击了：%ld",(indexPath.row));
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[_mSelectItemDelegate onSelectItem:indexPath.row];
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}
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#pragma mark - 加载数据
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-(void)addCoverFlowViewDatas:(NSArray<UIView *> *) viewsData{
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viewDataArray = viewsData;
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[_mUICollectionView reloadData];
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}
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/**
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设置选中
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@param selectIndex
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*/
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-(void)setCoverFlowSelectIndex:(NSInteger) selectIndex{
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[self.mUICollectionView scrollToItemAtIndexPath:[NSIndexPath indexPathForRow:selectIndex inSection:0] atScrollPosition:UICollectionViewScrollPositionCenteredHorizontally animated:NO];
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// _mUICollectionView
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}
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/**
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重置布局
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@param mCGRect 布局
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*/
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-(void)initWithFrameArc:(CGRect) mCGRect{
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self.frame = mCGRect;
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_mUICollectionView.frame = self.frame;
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_mUICollectionView.center = CGPointMake(self.frame.size.width/2, self.frame.size.height/2);
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}
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@end
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