最佳答案
将阴影创建为特定尺寸的透明层,同时创建可拉伸(stretch)的图像,如下所示:
UIImage *shadowImage = [UIImage imageNamed:@"shadow.png"];
shadowImage = [shadowImage stretchableImageWithLeftCapWidth:floorf(shadowImage.size.width/2) topCapHeight:floorf(shadowImage.size.height/2)];
将图像放入 UIImageView 中,以 contentMode 作为缩放比例以适应。
将您的 View 命名为“sView”。您可以像这样添加阴影:
UIImageView *shadowImgView = [[UIImageView alloc] initWithImage:shadowImage];
shadowImgView.contentMode = UIViewContentModeScaleToFill;
shadowImgView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
shadowImgView.frame = sView.bounds;
[sView shadowImgView];
[shadowImgView release]; // only needed if you aren't using ARC
关于iphone - UIView创建内阴影,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/9783523/