JZAlbumViewController.m
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//
// JZAlbumViewController.m
// aoyouHH
//
// Created by jinzelu on 15/4/27.
// Copyright (c) 2015年 jinzelu. All rights reserved.
//
#import "JZAlbumViewController.h"
//#import "LocalFileViewController.h"
//#import "UIImageView+WebCache.h"
#import "MBProgressHUD.h"
#import "PhotoView.h"
#define IS_PAD (UI_USER_INTERFACE_IDIOM()== UIUserInterfaceIdiomPad)
@interface JZAlbumViewController ()<UIScrollViewDelegate,PhotoViewDelegate,UINavigationControllerDelegate>
{
CGFloat lastScale;
MBProgressHUD *HUD;
NSMutableArray *_subViewList;
}
@end
@implementation JZAlbumViewController
-(id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
//
_subViewList = [[NSMutableArray alloc] init];
}
return self;
}
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
lastScale = 1.0;
self.view.backgroundColor = [UIColor blackColor];
[self initScrollView];
[self setPicCurrentIndex:self.currentIndex];
}
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
self.navigationController.delegate = self;
[[UIApplication sharedApplication] setStatusBarHidden:YES];
self.automaticallyAdjustsScrollViewInsets = NO;
if (@available(iOS 11.0, *)) {
self.scrollView.contentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentNever;
} else {
self.automaticallyAdjustsScrollViewInsets = NO;
}
}
- (void)viewWillDisappear:(BOOL)animated
{
[super viewWillDisappear:animated];
[[UIApplication sharedApplication] setStatusBarHidden:NO];
self.navigationController.navigationBarHidden = NO;
if (@available(iOS 11.0, *)) {
self.scrollView.contentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentAutomatic;
} else {
self.automaticallyAdjustsScrollViewInsets = YES;
}
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
-(void)initScrollView{
self.scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, ScreenWidth, ScreenHeight)];
self.scrollView.pagingEnabled = YES;
self.scrollView.userInteractionEnabled = YES;
self.scrollView.showsHorizontalScrollIndicator = NO;
self.scrollView.contentSize = CGSizeMake(self.imgArr.count*ScreenWidth, 0);
self.scrollView.delegate = self;
self.scrollView.contentOffset = CGPointMake(0, 0);
//设置放大缩小的最大，最小倍数
[self.view addSubview:self.scrollView];
for (int i = 0; i < self.imgArr.count; i++) {
[_subViewList addObject:[NSNull class]];
}
}
-(void)addLabels{
self.sliderLabel = [[UILabel alloc] initWithFrame:CGRectMake(40, ScreenHeight-64-49, 60, 30)];
self.sliderLabel.backgroundColor = [UIColor clearColor];
self.sliderLabel.textColor = [UIColor whiteColor];
self.sliderLabel.text = [NSString stringWithFormat:@"%ld/%lu",self.currentIndex+1,(unsigned long)self.imgArr.count];
[self.view addSubview:self.sliderLabel];
}
-(void)setPicCurrentIndex:(NSInteger)currentIndex{
_currentIndex = currentIndex;
self.scrollView.contentOffset = CGPointMake(ScreenWidth*currentIndex, 0);
[self loadPhote:_currentIndex];
if (_currentIndex == self.imgArr.count-1) {
[self loadPhote:_currentIndex-1];
}else if (_currentIndex == 0){
[self loadPhote:_currentIndex+1];
}else{
[self loadPhote:_currentIndex-1];
[self loadPhote:_currentIndex+1];
}
}
-(void)loadPhote:(NSInteger)index{
if (index<0 || index >=self.imgArr.count) {
return;
}
id currentPhotoView = [_subViewList objectAtIndex:index];
if (![currentPhotoView isKindOfClass:[PhotoView class]]) {
if ([self.imgArr[index] isKindOfClass:[NSString class]]) {
CGRect frame = CGRectMake(index*_scrollView.frame.size.width, 0, self.view.frame.size.width, self.view.frame.size.height);
PhotoView *photoV = [[PhotoView alloc] initWithFrame:frame withPhotoUrl:[self.imgArr objectAtIndex:index]];
photoV.delegate = self;
// [self.scrollView insertSubview:photoV atIndex:0];
[self.scrollView addSubview:photoV];
[_subViewList replaceObjectAtIndex:index withObject:photoV];
}
// else if ([self.imgArr[index] isKindOfClass:[NIMMessage class]]) {
// NIMMessage *message = self.imgArr[index];
//
// if ([message.messageObject isKindOfClass:[NIMImageObject class]]) {
// NIMImageObject *image = message.messageObject;
//
// CGRect frame = CGRectMake(index*_scrollView.frame.size.width, 0, self.view.frame.size.width, self.view.frame.size.height);
// PhotoView *photoV = [[PhotoView alloc] initWithFrame:frame withPhotoUrl:image.url];
// photoV.delegate = self;
// [self.scrollView addSubview:photoV];
// [_subViewList replaceObjectAtIndex:index withObject:photoV];
//
// }else if ([message.messageObject isKindOfClass:[NIMVideoObject class]]) {
// NIMVideoObject *video = message.messageObject;
//
// CGRect frame = CGRectMake(index*_scrollView.frame.size.width, 0, self.view.frame.size.width, self.view.frame.size.height);
// PhotoView *photoV = [[PhotoView alloc] initWithFrame:frame withVideo:video];
// photoV.delegate = self;
// [self.scrollView addSubview:photoV];
// [_subViewList replaceObjectAtIndex:index withObject:photoV];
//
// NSLog(@"%@", currentPhotoView);
// }
//
// }
}else{
}
}
#pragma mark - PhotoViewDelegate
-(void)TapHiddenPhotoView{
// [self dismissViewControllerAnimated:YES completion:nil];
[self.navigationController popViewControllerAnimated:YES];
}
-(void)longPressGesturePhotoView:(UIAlertController *)alertVC
{
if (IS_PAD) {
UIPopoverPresentationController *popPresenter = [alertVC
popoverPresentationController];
popPresenter.sourceView = [CommonFun sharedInstance].topViewController.view; // 这就是挂靠的对象
popPresenter.sourceRect = CGRectMake(0, ScreenHeight, ScreenWidth, ScreenHeight);
[self presentViewController:alertVC animated:YES completion:nil];
}else{
[self presentViewController:alertVC animated:YES completion:nil];
};
}
-(void)OnTapView{
[self dismissViewControllerAnimated:YES completion:nil];
}
//手势
-(void)pinGes:(UIPinchGestureRecognizer *)sender{
if ([sender state] == UIGestureRecognizerStateBegan) {
lastScale = 1.0;
}
CGFloat scale = 1.0 - (lastScale -[sender scale]);
lastScale = [sender scale];
self.scrollView.contentSize = CGSizeMake(self.imgArr.count*ScreenWidth, ScreenHeight*lastScale);
NSLog(@"scale:%f lastScale:%f",scale,lastScale);
CATransform3D newTransform = CATransform3DScale(sender.view.layer.transform, scale, scale, 1);
sender.view.layer.transform = newTransform;
if ([sender state] == UIGestureRecognizerStateEnded) {
//
}
}
#pragma mark - UIScrollViewDelegate
-(void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView{
NSLog(@"scrollViewDidEndDecelerating");
int i = scrollView.contentOffset.x/ScreenWidth+1;
_currentIndex = i;
[self loadPhote:i-1];
self.sliderLabel.text = [NSString stringWithFormat:@"%d/%lu",i,(unsigned long)self.imgArr.count];
}
- (void)scrollViewDidScroll:(UIScrollView *)scrollView{
CGFloat offsetX = scrollView.contentOffset.x;
NSLog(@"%f",offsetX);
}
// 将要显示控制器
#pragma mark - UINavigationControllerDelegate
- (void)navigationController:(UINavigationController *)navigationController willShowViewController:(UIViewController *)viewController animated:(BOOL)animated {
// 判断要显示的控制器是否是自己
BOOL isSelf = [viewController isKindOfClass:[self class]];
if(isSelf){
[self.navigationController setNavigationBarHidden:YES animated:animated];
}else{
NSLog(@"将要展示的viewController不是自己");
}
}
@end