//
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// PBCommentsFooterView.m
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// IphoneBIMe
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//
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// Created by zjf on 2018/9/4.
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// Copyright © 2018年 ProBIM. All rights reserved.
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//
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#import "PBCommentsFooterView.h"
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#import "PBImageCollectionViewCell.h"
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#define ALineCount 3
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#define Spacing 10
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static NSString *const cellID = @"cellID";
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@interface PBCommentsFooterView()<UICollectionViewDataSource, UICollectionViewDelegate, SDPhotoBrowserDelegate>
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@property (nonatomic, strong) UICollectionView *collectionView;
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@property (nonatomic, assign) CGFloat itemWH;
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@end
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@implementation PBCommentsFooterView
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- (instancetype)initWithFrame:(CGRect)frame {
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if (self = [super initWithFrame:frame]) {
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[self setupUI];
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}
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return self;
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}
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- (void)setupUI {
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self.backgroundColor = [UIColor whiteColor];
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[self addSubview:self.collectionView];
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self.collectionView.backgroundColor = [UIColor whiteColor];
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[self.collectionView mas_makeConstraints:^(MASConstraintMaker *make) {
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make.top.equalTo(self).offset(16);
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make.left.equalTo(self).offset(Spacing);
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make.right.equalTo(self).offset(-Spacing);
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make.bottom.equalTo(self).offset(-16);
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}];
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}
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- (UICollectionView *)collectionView{
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if (!_collectionView) {
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UICollectionViewFlowLayout *layout = [UICollectionViewFlowLayout.alloc init];
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CGFloat itemWH = (PBScreenWidth - (ALineCount + 1) * Spacing) / ALineCount;
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self.itemWH = itemWH;
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layout.itemSize = CGSizeMake(itemWH, itemWH);
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layout.minimumLineSpacing = Spacing;
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layout.minimumInteritemSpacing = Spacing;
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layout.scrollDirection = UICollectionViewScrollDirectionVertical;
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_collectionView = [UICollectionView.alloc initWithFrame:CGRectZero collectionViewLayout:layout];
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_collectionView.backgroundColor = [UIColor whiteColor];
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[_collectionView registerClass:[PBImageCollectionViewCell class] forCellWithReuseIdentifier:cellID];
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_collectionView.delegate = self;
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_collectionView.dataSource = self;
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}
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return _collectionView;
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}
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#pragma mark - UICollectionViewDataSource
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- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section{
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return self.selectedPhotos.count;
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}
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- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath{
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PBImageCollectionViewCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:cellID forIndexPath:indexPath];
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cell.image = self.selectedPhotos[indexPath.row];
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cell.roleType = CREATOR;
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cell.DeleteImageBlock = ^{
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if (self.deleteImageBlock) {
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self.deleteImageBlock(indexPath.row);
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}
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};
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return cell;
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}
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#pragma mark - UICollectionViewDelegate
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- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath {
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SDPhotoBrowser *photoBrowser = [SDPhotoBrowser new];
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photoBrowser.delegate = self;
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photoBrowser.currentImageIndex = indexPath.item;
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photoBrowser.imageCount = self.selectedPhotos.count;
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photoBrowser.sourceImagesContainerView = self.collectionView;
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[photoBrowser show];
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}
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#pragma mark - SDPhotoBrowserDelegate
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// 返回临时占位图片(即原来的小图)
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- (UIImage *)photoBrowser:(SDPhotoBrowser *)browser placeholderImageForIndex:(NSInteger)index {
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// 不建议用此种方式获取小图,这里只是为了简单实现展示而已
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PBImageCollectionViewCell *cell = (PBImageCollectionViewCell *)[self collectionView:self.collectionView cellForItemAtIndexPath:[NSIndexPath indexPathForItem:index inSection:0]];
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return cell.imageV.image;
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}
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- (void)setSelectedPhotos:(NSMutableArray *)selectedPhotos {
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_selectedPhotos = selectedPhotos;
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[self.collectionView reloadData];
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}
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@end
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