来自 NSMutableArray 的 UIImageView

Question

我需要根据 NSMutableArray 中的对象数量创建一定数量的 UIImageView。例如，如果此 NSMutableArray 中有 5 个 UIImage，我如何使用这些图像创建 5 个 UIImageView？

谢谢

Answer 1

使用 count 属性共 NSArray:

UIImage *image1 = [UIImage imageNamed:@"img1.png"];
UIImage *image2 = [UIImage imageNamed:@"img2.png"];
UIImage *image3 = [UIImage imageNamed:@"img3.png"];
UIImage *image4 = [UIImage imageNamed:@"img4.png"];
UIImage *image5 = [UIImage imageNamed:@"img5.png"];
NSArray *imageArray = @[image1, image2, image3, image4, image5];

NSInteger imageCount = 0;
NSInteger imageViewYM = 20; // Ensure this is bigger than image height

for (UIImage *image in imageArray) {
    UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(0.0, imageViewYM * imageCount, image.size.width, image.size.height)];
    imageView.image = image;

    [self.view addSubview:imageView];
    imageCount++;
}

Answer 2

运行对所有图像进行 while 循环并为每个图像创建一个新的 UIImageView：

NSArray *imageArray = @[image1, image2, image3];  
int i = 0;
while(i < imageArray.count) {
    UIImageView * imageView = [[UIImageView alloc] init];
    imageView.image = [imageArray objectAtIndex:i];
    imageView.frame = CGRectMake(0, 0, 50, 50);
    imageView.tag = i;
    [self.view addSubview:imageView];
    i++;
}

来自 NSMutableArray 的 UIImageView

UIImageView From NSMutableArray

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