使用 ScrollView 在 CollectionView 中显示 100 多个图像文件

Question

我从服务器获取的每个文件夹中都有 100 多个图像。 我调整了它们的大小并在我的 Iphone 12pro 上启动它工作正常，但是当我从其他设备（即 iphone 8）加载时，会出现 memory 泄漏。 那是因为当用户单击图像时，应用程序会一次性加载所有图像。 是否有任何想法准备在单击或后台下载之前打开图像以避免 memory 泄漏？

CGFloat width = self.scrollView.frame.size.width;
    CGFloat height = self.contentView.frame.size.height;
    CGRect innerFrame = CGRectMake(0, 0, width, height);

        __block UIImage *menuImage =[[UIImage alloc]init];
    for (int i = 0; i < self.fileList.count; i++) {
        // Output Image Correction////////////////////////////////////////////////////////////////////////////////////
        __block UIImage* Picture = nil; //  원래의 이미지가
        if ([self.ListType  isEqual: @"url"]) {
            NSData * imageData = [[NSData alloc] initWithContentsOfURL: [NSURL URLWithString: self.fileList[i]]];
            Picture = [UIImage imageWithData:imageData];
        } else {
            dispatch_queue_t queue = dispatch_get_main_queue();
            dispatch_async(queue, ^{
           NSString* filePath = (NSString *)self.fileList[i];
            NSString *imageFullPath = [self.filePath stringByAppendingPathComponent:filePath];
            BOOL isLoadAble = [[NSFileManager defaultManager] fileExistsAtPath:imageFullPath];
            if ( isLoadAble ) {
                NSData *data = [NSData dataWithContentsOfFile:[self.filePath stringByAppendingPathComponent:filePath]];
              
                Picture = [UIImage imageWithData:data];
                 
                UIGraphicsBeginImageContext(Picture.size);
                CGRect rect = CGRectMake(0, 0, Picture.size.width, Picture.size.height);
                [Picture drawInRect:rect];
                UIImage *renderedImage = UIGraphicsGetImageFromCurrentImageContext();
                UIGraphicsEndImageContext();
                Picture =nil;
                menuImage = renderedImage;
                renderedImage = nil;
           
CGRect frame = CGRectMake(i * width, 0, width, height);
       UIImageView *imgV = [[UIImageView alloc] initWithFrame:innerFrame] ;
// New ImageSet///////////////////////////////////////////////////////////////////////////
        [imgV setImage:menuImage];
            menuImage = nil;
        [imgV setContentMode:UIViewContentModeScaleAspectFit];
            [imgV setBackgroundColor:[UIColor blackColor]];
        imgV.tag = VIEW_FOR_ZOOM_TAG;
        UIScrollView *psv = [[UIScrollView alloc] initWithFrame:frame];
        [psv setBackgroundColor:[UIColor blackColor]];
        psv.minimumZoomScale = ZOOM_MIN;
        psv.maximumZoomScale = ZOOM_MAX;
        psv.zoomScale = ZOOM_SCALE;
        psv.contentSize = imgV.bounds.size;
        psv.delegate = self.scrollDelegate;
        psv.showsHorizontalScrollIndicator = NO;
        psv.showsVerticalScrollIndicator = NO;
        psv.contentMode = UIViewContentModeScaleAspectFit;
        [psv addSubview:imgV];
        [self.contentView addSubview:psv];
        self.scrollView.delegate = self;
        [self.pages addObject:psv];
            imgV.userInteractionEnabled = YES;
            });