目前我正在将滚动半径和阴影应用于滚动视图中的多个UIView。我注意到,每当我滚动时,添加一个角落半径和阴影会使滚动视图像疯了一样。如何在不使我的表现受损的情况下应用这些影响?
答案 0 :(得分:1)
尝试同时设置图层的shadowPath
:
view.layer.cornerRadius=6.0f;
view.layer.borderWidth=2.0f;
view.layer.borderColor=[UIColor grayColor].CGColor;
view.layer.shadowColor = [UIColor blackColor].CGColor;
view.layer.shadowOpacity = 0.3f;
view.layer.shadowOffset = CGSizeMake(0, 0.0f);
view.layer.masksToBounds = NO;
UIBezierPath *path = [UIBezierPath bezierPathWithRect:view.bounds];
view.layer.shadowPath = path.CGPath;
答案 1 :(得分:0)
+(UIImage *)makeRoundCornerImage : (UIImage*) img : (int) cornerWidth : (int) cornerHeight
{
UIImage * newImage = nil;
if( nil != img)
{
NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
int w = img.size.width;
int h = img.size.height;
CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
CGContextRef context = CGBitmapContextCreate(NULL, w, h, 8, 4 * w, colorSpace, kCGImageAlphaPremultipliedFirst);
CGContextBeginPath(context);
CGRect rect = CGRectMake(0, 0, img.size.width, img.size.height);
addRoundedRectToPath(context, rect, cornerWidth, cornerHeight);
CGContextClosePath(context);
CGContextClip(context);
CGContextDrawImage(context, CGRectMake(0, 0, w, h), img.CGImage);
CGImageRef imageMasked = CGBitmapContextCreateImage(context);
CGContextRelease(context);
CGColorSpaceRelease(colorSpace);
[img release];
newImage = [[UIImage imageWithCGImage:imageMasked] retain];
CGImageRelease(imageMasked);
[pool release];
}
return newImage;
}
//借助This方法,我们可以创建任何PNG文件的圆角
UIImage *imageFromFile = [UIImage imageNamed:@"FilterFields.png"];
imageFromFile = [ImageManipulator
makeRoundCornerImage:imageFromFile : 10 : 10];
[SmallTable setImage:imageFromFile];