216 lines
6.9 KiB
Objective-C
Executable File
216 lines
6.9 KiB
Objective-C
Executable File
//
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// SJPreviewPhotoController.m
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// SJPhotoPickerDemo
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//
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// Created by Jaesun on 16/8/19.
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// Copyright © 2016年 S.J. All rights reserved.
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//
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#import "SJPreviewPhotoController.h"
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#import <Photos/Photos.h>
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#import "SJPhotoPickerNavBar.h"
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#import "SJPhotoPickerToolBar.h"
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#import "SJPreviewPhotoCell.h"
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#import "SJPhotoPicker.h"
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@interface SJPreviewPhotoController ()<UICollectionViewDelegate,UICollectionViewDataSource,SJPhotoPickerNavBarDelegate>
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@property (nonatomic, strong) UICollectionView *collectionView;
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@property (nonatomic, strong) SJPhotoPickerToolBar *toolBar;
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@property (nonatomic, strong) SJPhotoPickerNavBar *navBar;
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@property (nonatomic, strong) UIView *backView;
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@property (nonatomic, strong) NSMutableArray *pickedArray;
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@property (nonatomic, strong) SJPhotoModel *operatingModel;
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@end
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static NSString *ID_SJPreviewPhotoCell = @"sJPreviewPhotoCell";
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@implementation SJPreviewPhotoController
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- (void)viewDidLoad {
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[super viewDidLoad];
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[self setupDatas];
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[self setupViews];
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}
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- (void)viewWillAppear:(BOOL)animated {
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[super viewWillAppear:animated];
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[self.navigationController setNavigationBarHidden:YES animated:NO];
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}
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- (void)viewWillDisappear:(BOOL)animated {
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[super viewWillDisappear:animated];
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[self.navigationController setNavigationBarHidden:NO animated:NO];
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}
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- (void)didReceiveMemoryWarning {
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[super didReceiveMemoryWarning];
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}
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#pragma mark 数据初始化
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- (void)setupDatas {
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self.pickedArray = [NSMutableArray array];
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for (SJPhotoModel *model in self.previewArray) {
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if (model.isPicked) {
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[self.pickedArray addObject:model];
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}
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}
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[self.collectionView reloadData];
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}
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#pragma mark 视图初始化
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- (void)setupViews {
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// collectionView
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{
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UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc] init];
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layout.minimumLineSpacing = 0.0f;
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layout.minimumInteritemSpacing = 0.0f;
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layout.scrollDirection = UICollectionViewScrollDirectionHorizontal;
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self.collectionView = [[UICollectionView alloc] initWithFrame:CGRectMake(0, -64, SCREEN_W, SCREEN_H + 64) collectionViewLayout:layout];
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self.collectionView.pagingEnabled = YES;
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self.collectionView.showsHorizontalScrollIndicator = NO;
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self.collectionView.delegate = self;
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self.collectionView.dataSource = self;
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[self.collectionView registerClass:[SJPreviewPhotoCell class] forCellWithReuseIdentifier:ID_SJPreviewPhotoCell];
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self.collectionView.backgroundColor = [UIColor whiteColor];
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[self.collectionView scrollToItemAtIndexPath:[NSIndexPath indexPathForItem:self.curIndex inSection:0] atScrollPosition:(UICollectionViewScrollPositionNone) animated:NO];
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self.operatingModel = [self.previewArray lastObject];
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[self.view addSubview:self.collectionView];
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}
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// nav
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{
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self.navBar = [[SJPhotoPickerNavBar alloc] init];
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self.navBar.delegate = self;
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self.operatingModel = self.previewArray[self.curIndex];
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if (self.title.length == 0) {
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self.navBar.leftBtnTitle = @"";
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}
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self.navBar.barTitle = [NSString stringWithFormat:@"%lu/%lu",(unsigned long)self.curIndex + 1,(unsigned long)self.previewArray.count];
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if (self.operatingModel.isPicked) {
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[self.navBar setRightBtnTitleIndex:self.operatingModel.pickedIndex];
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}
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[self.view addSubview:self.navBar];
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}
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// toolBar
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{
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self.toolBar = [[SJPhotoPickerToolBar alloc] init];
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self.toolBar.backgroundColor = [UIColor colorWithRed:220/255.0 green:220/255.0 blue:220/255.0 alpha:0.3];
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self.toolBar.rightBtn.backgroundColor = NAVBAR_CLOOUR;
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[self.toolBar.rightBtn setTitleColor:[UIColor whiteColor] forState:(UIControlStateNormal)];
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self.toolBar.leftBtn.hidden = YES;
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[self.toolBar.rightBtn addTarget:self action:@selector(sureBtnAction:) forControlEvents:(UIControlEventTouchUpInside)];
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[self.view addSubview:self.toolBar];
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}
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}
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#pragma mark- UICollectionViewDelegate DataSource
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#pragma mark-
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- (NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView {
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return 1;
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}
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- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section {
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return self.previewArray.count;
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}
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- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {
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SJPreviewPhotoCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:ID_SJPreviewPhotoCell forIndexPath:indexPath];
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cell.zoomScale = 1.0;
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SJPhotoModel *model = self.previewArray[indexPath.item];
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cell.asset = model.asset;
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cell.singleTapEvent = ^(){
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[self.toolBar changeHideState];
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[self.navBar changeHideState];
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};
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return cell;
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}
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- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath {
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return CGSizeMake(SCREEN_W, SCREEN_H);
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}
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- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView {
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NSInteger index = (NSInteger)scrollView.contentOffset.x / SCREEN_W;
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self.operatingModel = self.previewArray[index];
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self.navBar.barTitle = [NSString stringWithFormat:@"%lu/%lu",index + 1,(unsigned long)self.previewArray.count];
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[self.navBar setRightBtnTitleIndex:self.operatingModel.pickedIndex];
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}
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#pragma mark- 点击事件
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#pragma mark-
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#pragma mark 单选框点击（SJ...NavBarDelegate）
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- (void)rightBtnAction:(UIButton *)sender {
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self.operatingModel.isPicked = !self.operatingModel.isPicked;
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// 代理传值
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[self.delegate pickedArrayChangeWithModel:self.operatingModel];
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if (self.operatingModel.isPicked) {
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NSInteger pickedIndex = self.pickedArray.count + 1;
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self.operatingModel.pickedIndex = pickedIndex;
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[self.pickedArray addObject:self.operatingModel];
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[self.navBar setRightBtnTitleIndex:pickedIndex];
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}
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else {
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[self.pickedArray removeObject:self.operatingModel];
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self.operatingModel.pickedIndex = 0;
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for (int i = 0; i < self.pickedArray.count; i ++) {
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SJPhotoModel *model = self.pickedArray[i];
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model.pickedIndex = i + 1;
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}
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[self.navBar setRightBtnTitleIndex:0];
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}
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}
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#pragma mark 确定按钮
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- (void)sureBtnAction:(UIButton *)sender {
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NSMutableArray *assetArray = [NSMutableArray array];
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for (SJPhotoModel *model in self.pickedArray) {
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PHAsset *asset = model.asset;
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[assetArray addObject:asset];
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}
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if (assetArray.count > MAXCOUNT) {
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GIGA_ShowToast(@"最多6张");
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return;
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}
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SJPhotoPicker *photoPicker = [SJPhotoPicker shareSJPhotoPicker];
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photoPicker.photoPickerBlock(assetArray);
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[self.navigationController dismissViewControllerAnimated:YES completion:nil];
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}
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@end
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