ios - 具有多个水平图像的 UIScrollView

Question

我需要在 View 中水平滚动 2 个图像。我已经很好地实现了单个图像滚动，但无法在 ScrollView 中显示多个图像。我附上了单卷轴的代码。下面是我需要实现的附加图像。

galleryScrollView = [UIScrollView new];
galleryScrollView.pagingEnabled = YES;
galleryScrollView.backgroundColor = [UIColor clearColor];
galleryScrollView.translatesAutoresizingMaskIntoConstraints = NO;
galleryScrollView.showsHorizontalScrollIndicator = NO;
galleryScrollView.showsVerticalScrollIndicator = NO;
galleryScrollView.delegate = self;
galleryScrollView.scrollEnabled = YES;
[backView addSubview:galleryScrollView];

for(int i=0;i<resultDict.count;i++) {

    CGRect frame;
    frame.origin.x= galleryScrollView.frame.size.width *i;
    frame.origin.y=0;
    frame.size=galleryScrollView.frame.size;

    UIImageView *imageView = [[UIImageView alloc] initWithFrame:frame];
    imageView.contentMode = UIViewContentModeScaleAspectFill;
    imageView.translatesAutoresizingMaskIntoConstraints = YES;
    imageView.clipsToBounds = YES;

    NSString *imageString = [[resultDict valueForKey:@"ImageURL"] objectAtIndex:i];
    [imageView setImageWithURL:[NSURL URLWithString:imageString]];
    [galleryScrollView  addSubview:imageView];
}
galleryScrollView.contentSize=CGSizeMake(galleryScrollView.frame.size.width * resultDict.count, galleryScrollView.frame.size.height);

Answer 1

问题是你想要在一个屏幕上显示两个图像，但是你为每个图像制作的框架是屏幕的大小，并且原点是关闭的。要更改原点，请替换

frame.origin.x= galleryScrollView.frame.size.width *i;

与

frame.origin.x= galleryScrollView.frame.size.width *i/2;

同样，您还需要更改 frame.size。