//
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// TZPhotoPreviewCell.m
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// TZImagePickerController
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//
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// Created by 谭真 on 15/12/24.
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// Copyright © 2015年 谭真. All rights reserved.
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//
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#import "TZPhotoPreviewCell.h"
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#import "TZAssetModel.h"
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#import "UIView+TZLayout.h"
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#import "TZImageManager.h"
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#import "TZProgressView.h"
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#import "TZImageCropManager.h"
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#import <MediaPlayer/MediaPlayer.h>
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#import "TZImagePickerController.h"
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@implementation TZAssetPreviewCell
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- (instancetype)initWithFrame:(CGRect)frame {
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self = [super initWithFrame:frame];
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if (self) {
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self.backgroundColor = [UIColor blackColor];
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[self configSubviews];
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[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(photoPreviewCollectionViewDidScroll) name:@"photoPreviewCollectionViewDidScroll" object:nil];
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}
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return self;
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}
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- (void)configSubviews {
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}
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#pragma mark - Notification
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- (void)photoPreviewCollectionViewDidScroll {
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}
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- (void)dealloc {
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[[NSNotificationCenter defaultCenter] removeObserver:self];
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}
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@end
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@implementation TZPhotoPreviewCell
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- (void)configSubviews {
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self.previewView = [[TZPhotoPreviewView alloc] initWithFrame:CGRectZero];
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__weak typeof(self) weakSelf = self;
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[self.previewView setSingleTapGestureBlock:^{
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__strong typeof(weakSelf) strongSelf = weakSelf;
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if (strongSelf.singleTapGestureBlock) {
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strongSelf.singleTapGestureBlock();
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}
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}];
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[self.previewView setImageProgressUpdateBlock:^(double progress) {
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__strong typeof(weakSelf) strongSelf = weakSelf;
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if (strongSelf.imageProgressUpdateBlock) {
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strongSelf.imageProgressUpdateBlock(progress);
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}
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}];
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[self.contentView addSubview:self.previewView];
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}
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- (void)setModel:(TZAssetModel *)model {
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[super setModel:model];
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_previewView.model = model;
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}
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- (void)recoverSubviews {
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[_previewView recoverSubviews];
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}
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- (void)setAllowCrop:(BOOL)allowCrop {
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_allowCrop = allowCrop;
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_previewView.allowCrop = allowCrop;
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}
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- (void)setScaleAspectFillCrop:(BOOL)scaleAspectFillCrop {
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_scaleAspectFillCrop = scaleAspectFillCrop;
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_previewView.scaleAspectFillCrop = scaleAspectFillCrop;
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}
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- (void)setCropRect:(CGRect)cropRect {
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_cropRect = cropRect;
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_previewView.cropRect = cropRect;
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}
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- (void)layoutSubviews {
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[super layoutSubviews];
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self.previewView.frame = self.bounds;
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}
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@end
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@interface TZPhotoPreviewView ()<UIScrollViewDelegate>
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@property (assign, nonatomic) BOOL isRequestingGIF;
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@end
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@implementation TZPhotoPreviewView
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- (instancetype)initWithFrame:(CGRect)frame {
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self = [super initWithFrame:frame];
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if (self) {
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_scrollView = [[UIScrollView alloc] init];
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_scrollView.bouncesZoom = YES;
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_scrollView.maximumZoomScale = 4;
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_scrollView.minimumZoomScale = 1.0;
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_scrollView.multipleTouchEnabled = YES;
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_scrollView.delegate = self;
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_scrollView.scrollsToTop = NO;
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_scrollView.showsHorizontalScrollIndicator = NO;
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_scrollView.showsVerticalScrollIndicator = YES;
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_scrollView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
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_scrollView.delaysContentTouches = NO;
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_scrollView.canCancelContentTouches = YES;
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_scrollView.alwaysBounceVertical = NO;
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if (@available(iOS 11, *)) {
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_scrollView.contentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentNever;
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}
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[self addSubview:_scrollView];
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_imageContainerView = [[UIView alloc] init];
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_imageContainerView.clipsToBounds = YES;
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_imageContainerView.contentMode = UIViewContentModeScaleAspectFill;
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[_scrollView addSubview:_imageContainerView];
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_imageView = [[UIImageView alloc] init];
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_imageView.backgroundColor = [UIColor colorWithWhite:1.000 alpha:0.500];
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_imageView.contentMode = UIViewContentModeScaleAspectFill;
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_imageView.clipsToBounds = YES;
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[_imageContainerView addSubview:_imageView];
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_iCloudErrorIcon = [[UIImageView alloc] init];
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_iCloudErrorIcon.image = [UIImage tz_imageNamedFromMyBundle:@"iCloudError"];
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_iCloudErrorIcon.hidden = YES;
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[self addSubview:_iCloudErrorIcon];
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_iCloudErrorLabel = [[UILabel alloc] init];
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_iCloudErrorLabel.font = [UIFont systemFontOfSize:10];
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_iCloudErrorLabel.textColor = [UIColor whiteColor];
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_iCloudErrorLabel.text = [NSBundle tz_localizedStringForKey:@"iCloud sync failed"];
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_iCloudErrorLabel.hidden = YES;
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[self addSubview:_iCloudErrorLabel];
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UITapGestureRecognizer *tap1 = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(singleTap:)];
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[self addGestureRecognizer:tap1];
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UITapGestureRecognizer *tap2 = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(doubleTap:)];
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tap2.numberOfTapsRequired = 2;
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[tap1 requireGestureRecognizerToFail:tap2];
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[self addGestureRecognizer:tap2];
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[self configProgressView];
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}
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return self;
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}
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- (void)configProgressView {
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_progressView = [[TZProgressView alloc] init];
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_progressView.hidden = YES;
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[self addSubview:_progressView];
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}
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- (void)setModel:(TZAssetModel *)model {
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_model = model;
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self.isRequestingGIF = NO;
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[_scrollView setZoomScale:1.0 animated:NO];
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if (model.type == TZAssetModelMediaTypePhotoGif) {
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// 先显示缩略图
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[[TZImageManager manager] getPhotoWithAsset:model.asset completion:^(UIImage *photo, NSDictionary *info, BOOL isDegraded) {
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if (photo) {
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self.imageView.image = photo;
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}
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[self resizeSubviews];
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if (self.isRequestingGIF) {
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return;
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}
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// 再显示gif动图
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self.isRequestingGIF = YES;
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[[TZImageManager manager] getOriginalPhotoDataWithAsset:model.asset progressHandler:^(double progress, NSError *error, BOOL *stop, NSDictionary *info) {
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progress = progress > 0.02 ? progress : 0.02;
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dispatch_async(dispatch_get_main_queue(), ^{
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BOOL iCloudSyncFailed = [TZCommonTools isICloudSyncError:error];
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self.iCloudErrorLabel.hidden = !iCloudSyncFailed;
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self.iCloudErrorIcon.hidden = !iCloudSyncFailed;
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if (self.iCloudSyncFailedHandle) {
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self.iCloudSyncFailedHandle(model.asset, iCloudSyncFailed);
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}
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self.progressView.progress = progress;
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if (progress >= 1) {
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self.progressView.hidden = YES;
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} else {
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self.progressView.hidden = NO;
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}
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});
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#ifdef DEBUG
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NSLog(@"[TZImagePickerController] getOriginalPhotoDataWithAsset:%f error:%@", progress, error);
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#endif
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} completion:^(NSData *data, NSDictionary *info, BOOL isDegraded) {
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if (!isDegraded) {
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self.isRequestingGIF = NO;
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self.progressView.hidden = YES;
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if ([TZImagePickerConfig sharedInstance].gifImagePlayBlock) {
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[TZImagePickerConfig sharedInstance].gifImagePlayBlock(self, self.imageView, data, info);
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} else {
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self.imageView.image = [UIImage sd_tz_animatedGIFWithData:data];
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}
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[self resizeSubviews];
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}
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}];
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} progressHandler:nil networkAccessAllowed:NO];
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} else {
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self.asset = model.asset;
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}
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}
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- (void)setAsset:(PHAsset *)asset {
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if (_asset && self.imageRequestID) {
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[[PHImageManager defaultManager] cancelImageRequest:self.imageRequestID];
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}
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_asset = asset;
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self.imageRequestID = [[TZImageManager manager] getPhotoWithAsset:asset completion:^(UIImage *photo, NSDictionary *info, BOOL isDegraded) {
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BOOL iCloudSyncFailed = !photo && [TZCommonTools isICloudSyncError:info[PHImageErrorKey]];
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self.iCloudErrorLabel.hidden = !iCloudSyncFailed;
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self.iCloudErrorIcon.hidden = !iCloudSyncFailed;
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if (self.iCloudSyncFailedHandle) {
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self.iCloudSyncFailedHandle(asset, iCloudSyncFailed);
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}
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if (![asset isEqual:self->_asset]) return;
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if (photo) {
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self.imageView.image = photo;
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}
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[self resizeSubviews];
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if (self.imageView.tz_height && self.allowCrop) {
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CGFloat scale = MAX(self.cropRect.size.width / self.imageView.tz_width, self.cropRect.size.height / self.imageView.tz_height);
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if (self.scaleAspectFillCrop && scale > 1) { // 如果设置图片缩放裁剪并且图片需要缩放
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CGFloat multiple = self.scrollView.maximumZoomScale / self.scrollView.minimumZoomScale;
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self.scrollView.minimumZoomScale = scale;
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self.scrollView.maximumZoomScale = scale * MAX(multiple, 2);
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[self.scrollView setZoomScale:scale animated:YES];
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}
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}
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self->_progressView.hidden = YES;
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if (self.imageProgressUpdateBlock) {
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self.imageProgressUpdateBlock(1);
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}
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if (!isDegraded) {
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self.imageRequestID = 0;
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}
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} progressHandler:^(double progress, NSError *error, BOOL *stop, NSDictionary *info) {
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if (![asset isEqual:self->_asset]) return;
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self->_progressView.hidden = NO;
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[self bringSubviewToFront:self->_progressView];
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progress = progress > 0.02 ? progress : 0.02;
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self->_progressView.progress = progress;
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if (self.imageProgressUpdateBlock && progress < 1) {
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self.imageProgressUpdateBlock(progress);
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}
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if (progress >= 1) {
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self->_progressView.hidden = YES;
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self.imageRequestID = 0;
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}
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} networkAccessAllowed:YES];
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[self configMaximumZoomScale];
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}
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- (void)recoverSubviews {
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[_scrollView setZoomScale:_scrollView.minimumZoomScale animated:NO];
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[self resizeSubviews];
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}
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- (void)resizeSubviews {
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_imageContainerView.tz_origin = CGPointZero;
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_imageContainerView.tz_width = self.scrollView.tz_width;
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UIImage *image = _imageView.image;
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if (image.size.height / image.size.width > self.tz_height / self.scrollView.tz_width) {
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CGFloat width = image.size.width / image.size.height * self.scrollView.tz_height;
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if (width < 1 || isnan(width)) width = self.tz_width;
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width = floor(width);
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_imageContainerView.tz_width = width;
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_imageContainerView.tz_height = self.tz_height;
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_imageContainerView.tz_centerX = self.scrollView.tz_width / 2;
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} else {
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CGFloat height = image.size.height / image.size.width * self.scrollView.tz_width;
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if (height < 1 || isnan(height)) height = self.tz_height;
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height = floor(height);
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_imageContainerView.tz_height = height;
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_imageContainerView.tz_centerY = self.tz_height / 2;
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}
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if (_imageContainerView.tz_height > self.tz_height && _imageContainerView.tz_height - self.tz_height <= 1) {
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_imageContainerView.tz_height = self.tz_height;
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}
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CGFloat contentSizeH = MAX(_imageContainerView.tz_height, self.tz_height);
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_scrollView.contentSize = CGSizeMake(self.scrollView.tz_width, contentSizeH);
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[_scrollView scrollRectToVisible:self.bounds animated:NO];
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_scrollView.alwaysBounceVertical = _imageContainerView.tz_height <= self.tz_height ? NO : YES;
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_imageView.frame = _imageContainerView.bounds;
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[self refreshScrollViewContentSize];
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}
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- (void)configMaximumZoomScale {
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_scrollView.maximumZoomScale = _allowCrop ? 6.0 : 4.0;
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if ([self.asset isKindOfClass:[PHAsset class]]) {
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PHAsset *phAsset = (PHAsset *)self.asset;
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CGFloat aspectRatio = phAsset.pixelWidth / (CGFloat)phAsset.pixelHeight;
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// 优化超宽图片的显示
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if (aspectRatio > 1.5) {
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self.scrollView.maximumZoomScale *= aspectRatio / 1.5;
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}
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}
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}
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- (void)refreshScrollViewContentSize {
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if (_allowCrop) {
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// 1.7.2 如果允许裁剪,需要让图片的任意部分都能在裁剪框内，于是对_scrollView做了如下处理：
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// 1.让contentSize增大(裁剪框右下角的图片部分)
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CGFloat contentWidthAdd = (MIN(_imageContainerView.tz_width, self.scrollView.tz_width) - _cropRect.size.width) / 2;
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CGFloat contentHeightAdd = (MIN(_imageContainerView.tz_height, self.scrollView.tz_height) - _cropRect.size.height) / 2;
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CGFloat newSizeW = MAX(self.scrollView.contentSize.width, self.scrollView.tz_width) + contentWidthAdd;
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CGFloat newSizeH = MAX(self.scrollView.contentSize.height, self.scrollView.tz_height) + contentHeightAdd;
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_scrollView.contentSize = CGSizeMake(newSizeW, newSizeH);
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_scrollView.alwaysBounceVertical = YES;
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// 2.让scrollView新增滑动区域（裁剪框左上角的图片部分）
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if (contentHeightAdd > 0 || contentWidthAdd > 0) {
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_scrollView.contentInset = UIEdgeInsetsMake(MAX(contentHeightAdd, 0), MAX(contentWidthAdd, 0), 0, 0);
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} else {
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_scrollView.contentInset = UIEdgeInsetsZero;
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}
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}
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}
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- (void)layoutSubviews {
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[super layoutSubviews];
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_scrollView.frame = CGRectMake(10, 0, self.tz_width - 20, self.tz_height);
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static CGFloat progressWH = 40;
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CGFloat progressX = (self.tz_width - progressWH) / 2;
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CGFloat progressY = (self.tz_height - progressWH) / 2;
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_progressView.frame = CGRectMake(progressX, progressY, progressWH, progressWH);
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[self recoverSubviews];
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_iCloudErrorIcon.frame = CGRectMake(20, [TZCommonTools tz_statusBarHeight] + 44 + 10, 28, 28);
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_iCloudErrorLabel.frame = CGRectMake(53, [TZCommonTools tz_statusBarHeight] + 44 + 10, self.tz_width - 63, 28);
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}
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#pragma mark - UITapGestureRecognizer Event
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- (void)doubleTap:(UITapGestureRecognizer *)tap {
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if (_scrollView.zoomScale > _scrollView.minimumZoomScale) {
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_scrollView.contentInset = UIEdgeInsetsZero;
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[_scrollView setZoomScale:_scrollView.minimumZoomScale animated:YES];
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} else {
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CGPoint touchPoint = [tap locationInView:self.imageView];
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CGFloat newZoomScale = MIN(_scrollView.maximumZoomScale, 2.5);
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CGFloat xsize = self.frame.size.width / newZoomScale;
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CGFloat ysize = self.frame.size.height / newZoomScale;
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[_scrollView zoomToRect:CGRectMake(touchPoint.x - xsize/2, touchPoint.y - ysize/2, xsize, ysize) animated:YES];
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}
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}
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- (void)singleTap:(UITapGestureRecognizer *)tap {
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if (self.singleTapGestureBlock) {
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self.singleTapGestureBlock();
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}
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}
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#pragma mark - UIScrollViewDelegate
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- (UIView *)viewForZoomingInScrollView:(UIScrollView *)scrollView {
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return _imageContainerView;
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}
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- (void)scrollViewWillBeginZooming:(UIScrollView *)scrollView withView:(UIView *)view {
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scrollView.contentInset = UIEdgeInsetsZero;
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}
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- (void)scrollViewDidZoom:(UIScrollView *)scrollView {
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[self refreshImageContainerViewCenter];
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}
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- (void)scrollViewDidEndZooming:(UIScrollView *)scrollView withView:(UIView *)view atScale:(CGFloat)scale {
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[self refreshScrollViewContentSize];
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}
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#pragma mark - Private
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- (void)refreshImageContainerViewCenter {
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CGFloat offsetX = (_scrollView.tz_width > _scrollView.contentSize.width) ? ((_scrollView.tz_width - _scrollView.contentSize.width) * 0.5) : 0.0;
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CGFloat offsetY = (_scrollView.tz_height > _scrollView.contentSize.height) ? ((_scrollView.tz_height - _scrollView.contentSize.height) * 0.5) : 0.0;
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self.imageContainerView.center = CGPointMake(_scrollView.contentSize.width * 0.5 + offsetX, _scrollView.contentSize.height * 0.5 + offsetY);
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}
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@end
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@implementation TZVideoPreviewCell
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- (void)configSubviews {
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[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(appWillResignActiveNotification) name:UIApplicationWillResignActiveNotification object:nil];
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_iCloudErrorIcon = [[UIImageView alloc] init];
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_iCloudErrorIcon.image = [UIImage tz_imageNamedFromMyBundle:@"iCloudError"];
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_iCloudErrorIcon.hidden = YES;
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_iCloudErrorLabel = [[UILabel alloc] init];
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_iCloudErrorLabel.font = [UIFont systemFontOfSize:10];
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_iCloudErrorLabel.textColor = [UIColor whiteColor];
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_iCloudErrorLabel.text = [NSBundle tz_localizedStringForKey:@"iCloud sync failed"];
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_iCloudErrorLabel.hidden = YES;
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}
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- (void)configPlayButton {
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if (_playButton) {
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[_playButton removeFromSuperview];
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}
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_playButton = [UIButton buttonWithType:UIButtonTypeCustom];
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[_playButton setImage:[UIImage tz_imageNamedFromMyBundle:@"MMVideoPreviewPlay"] forState:UIControlStateNormal];
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[_playButton setImage:[UIImage tz_imageNamedFromMyBundle:@"MMVideoPreviewPlayHL"] forState:UIControlStateHighlighted];
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[_playButton addTarget:self action:@selector(playButtonClick) forControlEvents:UIControlEventTouchUpInside];
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_playButton.frame = CGRectMake(0, 64, self.tz_width, self.tz_height - 64 - 44);
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[self.contentView addSubview:_playButton];
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[self.contentView addSubview:_iCloudErrorIcon];
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[self.contentView addSubview:_iCloudErrorLabel];
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}
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- (void)setModel:(TZAssetModel *)model {
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[super setModel:model];
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[self configMoviePlayer];
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}
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- (void)setVideoURL:(NSURL *)videoURL {
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_videoURL = videoURL;
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[self configMoviePlayer];
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}
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- (void)configMoviePlayer {
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if (_player) {
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[_playerLayer removeFromSuperlayer];
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_playerLayer = nil;
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[_player pause];
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_player = nil;
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}
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if (self.model && self.model.asset) {
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[[TZImageManager manager] getPhotoWithAsset:self.model.asset completion:^(UIImage *photo, NSDictionary *info, BOOL isDegraded) {
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BOOL iCloudSyncFailed = !photo && [TZCommonTools isICloudSyncError:info[PHImageErrorKey]];
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self.iCloudErrorLabel.hidden = !iCloudSyncFailed;
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self.iCloudErrorIcon.hidden = !iCloudSyncFailed;
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if (self.iCloudSyncFailedHandle) {
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self.iCloudSyncFailedHandle(self.model.asset, iCloudSyncFailed);
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}
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if (photo) {
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self.cover = photo;
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}
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}];
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[[TZImageManager manager] getVideoWithAsset:self.model.asset completion:^(AVPlayerItem *playerItem, NSDictionary *info) {
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dispatch_async(dispatch_get_main_queue(), ^{
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BOOL iCloudSyncFailed = !playerItem && [TZCommonTools isICloudSyncError:info[PHImageErrorKey]];
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self.iCloudErrorLabel.hidden = !iCloudSyncFailed;
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self.iCloudErrorIcon.hidden = !iCloudSyncFailed;
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if (self.iCloudSyncFailedHandle) {
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self.iCloudSyncFailedHandle(self.model.asset, iCloudSyncFailed);
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}
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[self configPlayerWithItem:playerItem];
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});
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}];
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} else {
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AVPlayerItem *playerItem = [AVPlayerItem playerItemWithURL:self.videoURL];
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[self configPlayerWithItem:playerItem];
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}
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}
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- (void)configPlayerWithItem:(AVPlayerItem *)playerItem {
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self.player = [AVPlayer playerWithPlayerItem:playerItem];
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self.playerLayer = [AVPlayerLayer playerLayerWithPlayer:self.player];
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self.playerLayer.backgroundColor = [UIColor blackColor].CGColor;
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self.playerLayer.frame = self.bounds;
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[self.contentView.layer addSublayer:self.playerLayer];
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[self configPlayButton];
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[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(pausePlayerAndShowNaviBar) name:AVPlayerItemDidPlayToEndTimeNotification object:self.player.currentItem];
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}
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- (void)layoutSubviews {
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[super layoutSubviews];
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_playerLayer.frame = self.bounds;
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_playButton.frame = CGRectMake(0, 64, self.tz_width, self.tz_height - 64 - 44);
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_iCloudErrorIcon.frame = CGRectMake(20, [TZCommonTools tz_statusBarHeight] + 44 + 10, 28, 28);
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_iCloudErrorLabel.frame = CGRectMake(53, [TZCommonTools tz_statusBarHeight] + 44 + 10, self.tz_width - 63, 28);
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}
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- (void)photoPreviewCollectionViewDidScroll {
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if (_player && _player.rate != 0.0) {
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[self pausePlayerAndShowNaviBar];
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}
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}
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#pragma mark - Notification
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- (void)appWillResignActiveNotification {
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if (_player && _player.rate != 0.0) {
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[self pausePlayerAndShowNaviBar];
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}
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}
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#pragma mark - Click Event
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- (void)playButtonClick {
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CMTime currentTime = _player.currentItem.currentTime;
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CMTime durationTime = _player.currentItem.duration;
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if (_player.rate == 0.0f) {
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[[NSNotificationCenter defaultCenter] postNotificationName:@"TZ_VIDEO_PLAY_NOTIFICATION" object:_player];
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if (currentTime.value == durationTime.value) [_player.currentItem seekToTime:CMTimeMake(0, 1)];
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[_player play];
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[_playButton setImage:nil forState:UIControlStateNormal];
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[UIApplication sharedApplication].statusBarHidden = YES;
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if (self.singleTapGestureBlock) {
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self.singleTapGestureBlock();
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}
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} else {
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[self pausePlayerAndShowNaviBar];
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}
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}
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- (void)pausePlayerAndShowNaviBar {
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[_player pause];
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[_playButton setImage:[UIImage tz_imageNamedFromMyBundle:@"MMVideoPreviewPlay"] forState:UIControlStateNormal];
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if (self.singleTapGestureBlock) {
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self.singleTapGestureBlock();
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}
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}
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@end
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@implementation TZGifPreviewCell
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- (void)configSubviews {
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[self configPreviewView];
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}
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- (void)configPreviewView {
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_previewView = [[TZPhotoPreviewView alloc] initWithFrame:CGRectZero];
|
__weak typeof(self) weakSelf = self;
|
[_previewView setSingleTapGestureBlock:^{
|
__strong typeof(weakSelf) strongSelf = weakSelf;
|
[strongSelf signleTapAction];
|
}];
|
[self.contentView addSubview:_previewView];
|
}
|
|
- (void)setModel:(TZAssetModel *)model {
|
[super setModel:model];
|
_previewView.model = self.model;
|
}
|
|
- (void)layoutSubviews {
|
[super layoutSubviews];
|
_previewView.frame = self.bounds;
|
}
|
|
#pragma mark - Click Event
|
|
- (void)signleTapAction {
|
if (self.singleTapGestureBlock) {
|
self.singleTapGestureBlock();
|
}
|
}
|
|
@end
|
