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//
// PhotoManagerViewController.m
// Lighting
//
// Created by 曹云霄 on 2016/12/9.
// Copyright © 2016年 上海勾芒科技有限公司. All rights reserved.
//
#import "PhotoManagerViewController.h"
#import "PhotoManagerCollectionViewCell.h"
#import "MWPhotoBrowser.h"
@interface PhotoManagerViewController ()<UICollectionViewDelegate,UICollectionViewDataSource,MWPhotoBrowserDelegate>
@property (nonatomic,strong) NSMutableArray *browserArray;
@end
@implementation PhotoManagerViewController
#pragma mark - lazy
- (NSMutableArray *)browserArray
{
if (!_browserArray) {
_browserArray = [NSMutableArray array];
}
return _browserArray;
}
- (void)viewDidLoad {
[super viewDidLoad];
[self setUpCollectionView];
}
- (void)setImageArray:(NSMutableArray *)imageArray
{
_imageArray = imageArray;
[self.photoManagerCollectionView reloadData];
}
#pragma mark - UICollectionView
- (void)setUpCollectionView
{
//7表示7个间隔20的距离,40 表示左右边距
self.photoManagerFlowLayout.itemSize = CGSizeMake((ScreenWidth-40-7*20)/8, (ScreenWidth-40-7*20)/8);
self.photoManagerFlowLayout.minimumLineSpacing = 20;
self.photoManagerFlowLayout.minimumInteritemSpacing = 20;
}
#pragma mark - <UICollectionViewDelegate,UICollectionViewDataSource>
- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section
{
return self.imageArray.count;
}
- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
{
PhotoManagerCollectionViewCell *photoCell = [collectionView dequeueReusableCellWithReuseIdentifier:@"PhotoManagerCollectionViewCell" forIndexPath:indexPath];
id object = self.imageArray[indexPath.item];
if ([object isKindOfClass:[UIImage class]]) {
photoCell.photoImageView.image = self.imageArray[indexPath.item];
}else if ([object isKindOfClass:[NSString class]]) {
[photoCell.photoImageView sd_setImageWithURL:[NSURL URLWithString:object] placeholderImage:REPLACEIMAGE];
}
photoCell.photoImageView.tag = indexPath.item;
[photoCell.photoImageView addGestureRecognizer:[[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPressClickAction:)]];
return photoCell;
}
- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath
{
[self.browserArray removeAllObjects];
id object = [self.imageArray firstObject];
if ([object isKindOfClass:[UIImage class]]) {
for (UIImage *image in self.imageArray) {
MWPhoto *photo = [MWPhoto photoWithImage:image];
[self.browserArray addObject:photo];
}
}else if ([object isKindOfClass:[NSString class]]) {
for (NSString *string in self.imageArray) {
MWPhoto *photo = [MWPhoto photoWithURL:[NSURL URLWithString:string]];
[self.browserArray addObject:photo];
}
}
MWPhotoBrowser *browser = [[MWPhotoBrowser alloc] initWithDelegate:self];
[browser setCurrentPhotoIndex:indexPath.item];
UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:browser];
[self.navigationController presentViewController:nav animated:YES completion:nil];
}
#pragma mark - <MWPhotoBrowserDelegate>
- (NSUInteger)numberOfPhotosInPhotoBrowser:(MWPhotoBrowser *)photoBrowser
{
return self.browserArray.count;
}
- (id<MWPhoto>)photoBrowser:(MWPhotoBrowser *)photoBrowser photoAtIndex:(NSUInteger)index
{
if (index < self.browserArray.count) {
return [self.browserArray objectAtIndex:index];
}
return nil;
}
- (NSString *)photoBrowser:(MWPhotoBrowser *)photoBrowser titleForPhotoAtIndex:(NSUInteger)index
{
return [NSString stringWithFormat:@"%ld/%ld", index + 1, self.browserArray.count];
}
#pragma mark -长按删除
- (void)longPressClickAction:(UILongPressGestureRecognizer *)sender
{
WS(weakSelf);
ShowDefaultAlertView(self, nil, @"是否删除此项？", UIAlertControllerStyleAlert, ^{
NSInteger index = sender.view.tag;
[weakSelf.imageArray removeObjectAtIndex:index];
[weakSelf.photoManagerCollectionView reloadData];
}, nil);
}
@end