有的人想到 可以在方法里面直接调用哪个控件用就在哪里调用 但是不推荐 因为用到的控件 可能是UILabel、UIBUtton、UIView等 而且为了 贴近系统属性设置的特点 最好是给UIView加分类
使用 （注意，由于基于Layer 控件的背景色用我提供的dj_backgroundColor）
UIView *view = [[UIView alloc]initWithFrame:CGRectMake(100, 100, 160, 100)];
view.dj_backgroundColor = [UIColor redColor];
view.dj_shadowColor = [UIColorblackColor];
view.dj_shadowOffset =CGSizeMake(0,6);
view.dj_shadowRadius =6;
view.dj_shadowOpacity =0.6;
view.dj_corners =UIRectCornerTopLeft | UIRectCornerBottomLeft;
view.dj_radius =25;
[self.viewaddSubview:view];
分类的.h
/**
圆角
*/
@property (nonatomic, assign) CGFloat dj_radius;
/**
圆角位置
*/
@property (nonatomic, assign) UIRectCorner dj_corners;
/**
阴影偏移量
*/
@property(nonatomic,assign)CGSize dj_shadowOffset;
/**
阴影透明度
*/
@property(nonatomic,assign)CGFloat dj_shadowOpacity;
/**
阴影圆角
*/
@property(nonatomic,assign)CGFloat dj_shadowRadius;
/**
阴影颜色
*/
@property(nonatomic,strong)UIColor *dj_shadowColor;
/**
背景颜色(必须使用该属性设定背景颜色)
*/
@property(nonatomic,strong)UIColor *dj_backgroundColor;
分类的.m
#import "UIView+DJRandomRadius.h"
#import
staticvoid*bezierPathKey = &bezierPathKey;
staticvoid*shapeLayerKey = &shapeLayerKey;
staticvoid*radiusKey = &radiusKey;
staticvoid*cornersKey = &cornersKey;
staticvoid*shadowColorKey = &shadowColorKey;
staticvoid*shadowOffsetKey = &shadowOffsetKey;
staticvoid*shadowRadiusKey = &shadowRadiusKey;
staticvoid*shadowOpacityKey = &shadowOpacityKey;
staticvoid*backgroundColorKey = &backgroundColorKey;
@interface UIView ()
@property (nonatomic, strong) UIBezierPath *bezierPath;
@property (nonatomic, strong) CAShapeLayer *shapeLayer;
@end
staticCGFloat _radius;
static UIRectCorner _corners;
@implementationUIView (DJRandomRadius)
- (void)shouldStructElement {
[self.bezierPath removeAllPoints];
[self.shapeLayer removeFromSuperlayer];
self.bezierPath = nil;
self.shapeLayer = nil;
self.backgroundColor = [[UIColor whiteColor] colorWithAlphaComponent:0.0];
self.bezierPath = [UIBezierPath bezierPathWithRoundedRect:self.bounds byRoundingCorners:_corners cornerRadii:CGSizeMake(_radius, _radius)];
self.shapeLayer= [[CAShapeLayeralloc]init];
self.shapeLayer.path = self.bezierPath.CGPath;
self.shapeLayer.frame = self.bounds;
[self.layer addSublayer:self.shapeLayer];
self.shapeLayer.fillColor = !self.dj_backgroundColor ? [UIColor whiteColor].CGColor : self.dj_backgroundColor.CGColor;
self.shapeLayer.shadowColor = self.dj_shadowColor.CGColor;
self.shapeLayer.shadowOffset = self.dj_shadowOffset;
self.shapeLayer.shadowOpacity = self.dj_shadowOpacity;
self.shapeLayer.shadowRadius = self.dj_shadowRadius;
}
- (void)setDj_corners:(UIRectCorner)dj_corners {
_corners= dj_corners;
[self shouldStructElement];
objc_setAssociatedObject(self, &cornersKey, @(dj_corners), OBJC_ASSOCIATION_RETAIN);
}
- (UIRectCorner)dj_corners {
return [objc_getAssociatedObject(self, &cornersKey) integerValue];
}
- (void)setDj_radius:(CGFloat)dj_radius {
_radius= dj_radius;
[self shouldStructElement];
objc_setAssociatedObject(self, &radiusKey, @(dj_radius), OBJC_ASSOCIATION_RETAIN);
}
- (CGFloat)dj_radius {
return [objc_getAssociatedObject(self, &radiusKey) floatValue];
}
- (void)setDj_shadowOffset:(CGSize)dj_shadowOffset {
self.shapeLayer.shadowOffset= dj_shadowOffset;
objc_setAssociatedObject(self, &shadowOffsetKey, @(dj_shadowOffset), OBJC_ASSOCIATION_RETAIN);
}
- (CGSize)dj_shadowOffset {
return [objc_getAssociatedObject(self, &shadowOffsetKey) CGSizeValue];
}
- (void)setDj_shadowOpacity:(CGFloat)dj_shadowOpacity {
self.shapeLayer.shadowOpacity= dj_shadowOpacity;
objc_setAssociatedObject(self, &shadowOpacityKey, @(dj_shadowOpacity), OBJC_ASSOCIATION_RETAIN);
}
- (CGFloat)dj_shadowOpacity {
return [objc_getAssociatedObject(self, &shadowOpacityKey) floatValue];
}
- (void)setDj_shadowRadius:(CGFloat)dj_shadowRadius {
self.shapeLayer.shadowRadius= dj_shadowRadius;
objc_setAssociatedObject(self, &shadowRadiusKey, @(dj_shadowRadius), OBJC_ASSOCIATION_RETAIN);
}
- (CGFloat)dj_shadowRadius {
return [objc_getAssociatedObject(self, &shadowRadiusKey) floatValue];
}
- (void)setDj_shadowColor:(UIColor*)dj_shadowColor {
self.shapeLayer.shadowColor= dj_shadowColor.CGColor;
objc_setAssociatedObject(self, &shadowColorKey, dj_shadowColor, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}
- (UIColor*)dj_shadowColor {
return objc_getAssociatedObject(self, &shadowColorKey);
}
- (void)setDj_backgroundColor:(UIColor*)dj_backgroundColor {
self.shapeLayer.fillColor= dj_backgroundColor.CGColor;
objc_setAssociatedObject(self, &backgroundColorKey, dj_backgroundColor, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}
- (UIColor*)dj_backgroundColor {
return objc_getAssociatedObject(self, &backgroundColorKey);
}
- (void)setBezierPath:(UIBezierPath*)bezierPath {
objc_setAssociatedObject(self, &bezierPathKey, bezierPath, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}
- (UIBezierPath*)bezierPath {
return objc_getAssociatedObject(self, &bezierPathKey);
}
- (void)setShapeLayer:(CAShapeLayer*)shapeLayer {
objc_setAssociatedObject(self, &shapeLayerKey, shapeLayer, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}
- (CAShapeLayer*)shapeLayer {
return objc_getAssociatedObject(self, &shapeLayerKey);
}