我有2张图片..我怎么能重叠它们才能获得1张UIImage?将图像2的位置设置在图像1的X,Y
谢谢!
答案 0 :(得分:4)
Zapacila,你找到了问题的答案吗?你可以这样做:
#define imageWidth 40
#define imageHeight 60
UIImage *image1 = [UIImage imageNamed:@"firstimage.png"];
UIImage *image2 = [UIImage imageNamed: @"secondimage.png"];
CGSize itemSize = CGSizeMake(imageWidth, imageHeight);
UIGraphicsBeginImageContext(itemSize);
CGRect imageRect = CGRectMake(0.0, 0.0, itemSize.width, itemSize.height);
[image1 drawInRect:imageRect];
[image2 drawInRect:imageRect];
UIImage *overlappedImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
UIImage overlappedImage是一个新图像,包含重叠的初始图像。老实说,我不知道这是否是实现这一结果的最佳方法,但我知道这绝对有效。
如果在此期间您找到了更有效的解决方案,请告诉我们!
答案 1 :(得分:0)
为什么你不只是有一个UIView并将这两个图像作为子视图放入?
UIImageView *image = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"myimage.png"]];
UIView *imagesView = [[UIView alloc] initWithFrame:image.frame];
[imagesView addSubview:image];
UIImageView *imageToOverlay = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"myimagetooverlay.png"]];
[imageToOverlay setCenter:CGPointMake(10,10)];
[imagesView addSubview:imageToOverlay];
[self.view addSubview:imagesView];