374 lines
12 KiB
Objective-C
374 lines
12 KiB
Objective-C
//
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// UMComPhotoAlbumViewController.m
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// UMCommunity
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//
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// Created by umeng on 15/7/7.
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// Copyright (c) 2015年 Umeng. All rights reserved.
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//
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#import "UMComPhotoAlbumViewController.h"
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#import "UMComImageView.h"
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#import <UMComDataStorage/UMComAlbum.h>
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#import "UMComGridViewerController.h"
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#import "UIViewController+UMComAddition.h"
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#import "UMComRefreshView.h"
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#import <UMComDataStorage/UMComUser.h>
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#import <UMComDataStorage/UMComImageUrl.h>
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#import "UMComShowToast.h"
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#import <UMCommunitySDK/UMComSession.h>
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#import "UMComUserAlbumDataController.h"
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#import <UMComFoundation/UMComKit+Color.h>
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typedef void (^AlbumLoadCompletionHandler)(NSArray *data, NSError *error);
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const CGFloat A_WEEK_SECONDES = 60*60*24*7;
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@interface UMComPhotoAlbumViewController ()<UICollectionViewDataSource, UICollectionViewDelegate,UICollectionViewDelegateFlowLayout>
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@property (nonatomic, strong) UICollectionView *albumCollectionView;
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@property (nonatomic, strong) UICollectionViewFlowLayout *layout;
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@property (nonatomic, strong) NSArray *imageModelsArray;
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@property (nonatomic, strong) UMComHeadView *headView;
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@property (nonatomic, strong) UMComFootView *footView;
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@property (nonatomic, strong) UIActivityIndicatorView *indicatorView;
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@property (nonatomic, strong) UILabel *noDataTipLabel;
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@property (nonatomic,strong) UIView* emptyView;//无内容时候显示的view
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-(void) createEmptyView;
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@property(nonatomic,strong)UMComUserAlbumDataController* dataController;
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@property(nonatomic,assign)BOOL isLoadFinish;
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- (void)refreshData;
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- (void)refreshDataFromServer;
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- (void)loadMoreData;
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@end
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@implementation UMComPhotoAlbumViewController
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- (void)viewDidLoad {
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[super viewDidLoad];
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[self setTitleViewWithTitle:UMComLocalizedString(@"um_com_album", @"相册")];
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self.isLoadFinish = YES;
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self.dataController = [UMComUserAlbumDataController userAlbumDataControllWithUser:self.user count:UMCom_Limit_Page_Count];
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if ([self.user.uid isEqualToString:[UMComSession sharedInstance].uid]) {
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self.dataController.isReadLoacalData = YES;
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self.dataController.isSaveLoacalData = YES;
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}
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UICollectionViewFlowLayout *layout = [[UICollectionViewFlowLayout alloc]init];
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layout.scrollDirection =UICollectionViewScrollDirectionVertical;
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layout.minimumInteritemSpacing = 2;
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layout.minimumLineSpacing = 2;
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self.layout = layout;
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self.albumCollectionView = [[UICollectionView alloc]initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height) collectionViewLayout:layout];
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self.albumCollectionView.backgroundColor = [UIColor whiteColor];
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self.albumCollectionView.autoresizingMask = UIViewAutoresizingFlexibleWidth |UIViewAutoresizingFlexibleHeight;
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[self.albumCollectionView registerClass:[UMComPhotoAlbumCollectionCell class] forCellWithReuseIdentifier:@"PhotoAlbumCollectionCell"];
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[self.view addSubview:self.albumCollectionView];
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self.indicatorView = [[UIActivityIndicatorView alloc]initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray];
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self.indicatorView.center = CGPointMake(self.view.frame.size.width/2, self.view.frame.size.height/2);
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self.indicatorView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
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[self.view addSubview:self.indicatorView];
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__weak typeof(self) weakSelf = self;
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self.headView = (UMComHeadView *)[UMComHeadView refreshControllViewWithScrollView:self.albumCollectionView block:^{
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[weakSelf refreshData];
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}];
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self.footView = (UMComFootView *)[UMComFootView refreshControllViewWithScrollView:self.albumCollectionView block:^{
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[weakSelf loadMoreData];
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}];
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[self createEmptyView];
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[self refreshData];
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// Do any additional setup after loading the view from its nib.
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}
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- (void)creatNoFeedTip
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{
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UILabel *label = [[UILabel alloc]initWithFrame:CGRectMake(0, self.view.frame.size.height/2-40, self.view.frame.size.width,40)];
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label.backgroundColor = [UIColor clearColor];
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label.text = UMComLocalizedString(@"um_com_emptyData", @"内容为空");
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label.font = UMComFontNotoSansLightWithSafeSize(17);
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label.textColor = UMComColorWithHexString(FontColorGray);
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label.textAlignment = NSTextAlignmentCenter;
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label.autoresizingMask = UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleRightMargin;
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label.hidden = YES;
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[self.view addSubview:label];
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self.noDataTipLabel = label;
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}
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- (void)viewWillAppear:(BOOL)animated
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{
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[super viewWillAppear:animated];
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self.albumCollectionView.delegate = self;
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self.albumCollectionView.dataSource = self;
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CGFloat itemWidth = (self.view.frame.size.width-8)/3;
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self.layout.itemSize = CGSizeMake(itemWidth, itemWidth);
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[self.albumCollectionView reloadData];
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}
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- (void)viewWillDisappear:(BOOL)animated
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{
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[super viewWillDisappear:animated];
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}
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- (NSArray *)imageModelsWithData:(NSArray *)data
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{
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NSMutableArray *imageModels = [NSMutableArray array];
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for (UMComAlbum *album in data) {
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if (album.image_urls.count > 0) {
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[imageModels addObjectsFromArray:album.image_urls];
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}
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}
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return imageModels;
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}
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- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section
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{
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if (self.imageModelsArray.count <= 0) {
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self.emptyView.hidden = NO;
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}
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else{
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self.emptyView.hidden = YES;
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}
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if (self.imageModelsArray.count < 20) {
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return 20;
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}
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return self.imageModelsArray.count;
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}
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- (NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView
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{
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return 1;
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}
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- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath
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{
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UMComPhotoAlbumCollectionCell *cell = [collectionView dequeueReusableCellWithReuseIdentifier:@"PhotoAlbumCollectionCell" forIndexPath:indexPath];
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if (indexPath.row < self.imageModelsArray.count) {
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UMComImageUrl *imageModel = self.imageModelsArray[indexPath.row];
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[cell.imageView setImageURL:imageModel.small_url_string placeHolderImage:UMComImageWithImageName(@"image-placeholder")];
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}else{
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cell.imageView.image = nil;
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}
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return cell;
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}
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- (void)collectionView:(UICollectionView *)collectionView didSelectItemAtIndexPath:(NSIndexPath *)indexPath
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{
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if (indexPath.row >= self.imageModelsArray.count) {
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return;
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}
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UMComGridViewerController *viewerController = [[UMComGridViewerController alloc] initWithArray:self.imageModelsArray index:indexPath.row];
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[viewerController setCacheSecondes:A_WEEK_SECONDES];
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[self presentViewController:viewerController animated:YES completion:nil];
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}
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- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath
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{
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CGFloat itemWidth = (self.view.frame.size.width-8)/3;
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CGSize itemSize = CGSizeMake(itemWidth, itemWidth);
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return itemSize;
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}
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- (void)dealloc
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{
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self.albumCollectionView.delegate = nil;
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self.albumCollectionView.dataSource = nil;
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self.albumCollectionView = nil;
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self.headView = nil;
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self.footView = nil;
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}
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- (void)didReceiveMemoryWarning {
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[super didReceiveMemoryWarning];
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// Dispose of any resources that can be recreated.
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}
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/*
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#pragma mark - Navigation
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// In a storyboard-based application, you will often want to do a little preparation before navigation
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- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
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// Get the new view controller using [segue destinationViewController].
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// Pass the selected object to the new view controller.
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}
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*/
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-(void) createEmptyView
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{
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self.emptyView = [[UIView alloc] initWithFrame:self.view.bounds];
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UILabel *noticellabel = [[UILabel alloc]initWithFrame:CGRectMake(0, 0, self.emptyView.bounds.size.width, 40)];
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noticellabel.text = UMComLocalizedString(@"um_com_emptyData", @"暂时没有内容哦!");
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noticellabel.center = CGPointMake(self.emptyView.frame.size.width/2, self.emptyView.frame.size.height/2 );
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noticellabel.textAlignment = NSTextAlignmentCenter;
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noticellabel.font = UMComFontNotoSansLightWithSafeSize(20);
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noticellabel.textColor = UMComColorWithHexString(@"#A5A5A5");
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noticellabel.backgroundColor = [UIColor whiteColor];
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noticellabel.alpha = 1;
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[self.emptyView addSubview:noticellabel];
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[self.albumCollectionView addSubview:self.emptyView];
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self.emptyView.hidden = YES;
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}
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#pragma mark - data request
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- (void)handleLocalData:(NSArray *)data error:(NSError *)error
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{
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self.dataController.haveNextPage = NO;
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self.dataController.canVisitNextPage = NO;
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self.dataController.nextPageUrl = nil;
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[self.dataController.dataArray removeAllObjects];
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if ([data isKindOfClass:[NSArray class]] && data.count >0) {
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[self.dataController.dataArray addObjectsFromArray:data];
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}
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if (!error) {
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NSMutableArray *tempArr = [NSMutableArray arrayWithArray:self.imageModelsArray];
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[tempArr addObjectsFromArray:[self imageModelsWithData:data]];
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self.imageModelsArray = tempArr;
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[self.albumCollectionView reloadData];
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}
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}
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- (void) fetchLocalData
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{
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__weak typeof(self) weakSelf = self;
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[self.dataController fetchLocalDataWithCompletion:^(NSArray *dataArray, NSError *error) {
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if (dataArray && [dataArray isKindOfClass:[NSArray class]] && dataArray.count > 0) {
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[weakSelf handleLocalData:dataArray error:error];
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}
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[weakSelf refreshDataFromServer];
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}];
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}
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-(void) refreshData
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{
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if (self.dataController.isReadLoacalData) {
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//设置NO只会第一次下拉刷新取本地数据
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self.dataController.isReadLoacalData = NO;
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//取本地数据的话，就不需要显示loadMoreStatusView的views
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[self fetchLocalData];
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}
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else{
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[self refreshDataFromServer];
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}
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}
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-(void)refreshDataFromServer
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{
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if (self.isLoadFinish == NO) {
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return;
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}
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self.isLoadFinish = NO;
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[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:YES];
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__weak typeof(self) weakSelf = self;
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[self.dataController refreshNewDataCompletion:^(NSArray *data, NSError *error) {
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[UMComShowToast showFetchResultTipWithError:error];
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if (!error && [data isKindOfClass:[NSArray class]] && data.count <= 0) {
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weakSelf.emptyView.hidden = NO;
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}
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else{
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weakSelf.emptyView.hidden = YES;
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}
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[weakSelf.indicatorView stopAnimating];
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[UIApplication sharedApplication].networkActivityIndicatorVisible = NO;
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if (!error && [data isKindOfClass:[NSArray class]]) {
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weakSelf.imageModelsArray = [weakSelf imageModelsWithData:data];
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}
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weakSelf.isLoadFinish = YES;
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[weakSelf.headView endLoading];
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//如果没有下一页 则不显示下拉刷新
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if (weakSelf.dataController.haveNextPage) {
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[weakSelf.footView endLoading];
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}else{
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[weakSelf.footView noMoreData];
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}
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[weakSelf.albumCollectionView reloadData];
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}];
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}
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- (void)loadMoreData
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{
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if (self.isLoadFinish == NO) {
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return;
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}
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if (!self.dataController.haveNextPage) {
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[self.footView noMoreData];
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return;
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}
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self.isLoadFinish = NO;
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[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:YES];
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__weak typeof(self) weakSelf = self;
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[self.dataController loadNextPageDataWithCompletion:^(NSArray *data, NSError *error) {
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[UMComShowToast showFetchResultTipWithError:error];
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if (!error) {
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NSMutableArray *tempArr = [NSMutableArray arrayWithArray:weakSelf.imageModelsArray];
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[tempArr addObjectsFromArray:[weakSelf imageModelsWithData:data]];
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weakSelf.imageModelsArray = tempArr;
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}
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[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];
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weakSelf.isLoadFinish = YES;
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if (weakSelf.dataController.haveNextPage) {
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[weakSelf.footView endLoading];
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}else{
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[weakSelf.footView noMoreData];
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}
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[weakSelf.albumCollectionView reloadData];
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}];
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}
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@end
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@implementation UMComPhotoAlbumCollectionCell
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- (instancetype)initWithFrame:(CGRect)frame
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{
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self = [super initWithFrame:frame];
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if (self) {
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CGFloat imageWidth = frame.size.width;
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self.imageView = [[[UMComImageView imageViewClassName] alloc] initWithFrame:CGRectMake(0, 0, imageWidth, imageWidth)];
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self.imageView.needCutOff = YES;
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[self.contentView addSubview:self.imageView];
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}
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return self;
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}
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@end
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