CAlayer的一些基本属性应用

#import <QuartzCore/QuartzCore.h> //导入框架

self.aView.layer setCornerRadius:8.0];//圆角
self.aView.layer setShadowColor:[[UIColor blackColor]CGColor]];//阴影颜色
self.aView.layer setShadowOffset:CGSizeMake(10, 10)];//阴影距离
self.aView.layer setShadowOpacity:0.2];
self.aView.layer setShadowRadius:0];//阴影模糊程度
self.aView.layer setBorderColor:[[UIColor redColor] CGColor]];//描边颜色
self.aView.layer setBorderWidth:2.0];//描边粗细

CALayer 按指定的点 运动

CGMutablePathRef thePath =CGPathCreateMutable();

 

        CGPathMoveToPoint(thePath,NULL,aLayer.position.x, aLayer.position.y - 10);

       CGPathAddCurveToPoint(thePath,NULL,

                              aLayer.position.x, aLayer.position.y -30,

                              aLayer.position.x, aLayer.position.y -50,

                              aPoint.x, aPoint.y);

 

       CAKeyframeAnimation *theAnimation = [CAKeyframeAnimationanimationWithKeyPath:@"position"];

        theAnimation.path = thePath;

        theAnimation.duration = duration;

 

        CFRelease(thePath);

 

        theAnimation.removedOnCompletion =YES;

 

        [aLayer addAnimation:theAnimation forKey:@"position"];

CALayer 缩放动画

//放大

       CAKeyframeAnimation* animation = [CAKeyframeAnimationanimationWithKeyPath:@"transform"];

       NSMutableArray *values = [NSMutableArrayarray];

        [valuesaddObject:[NSValuevalueWithCATransform3D:CATransform3DMakeScale(0.9f,0.9f,1.0f)]];

        [valuesaddObject:[NSValuevalueWithCATransform3D:CATransform3DMakeScale(1.0f,1.0f,1.0f)]];

        animation.values = values;

        animation.duration = duration;

        animation.timingFunction = [CAMediaTimingFunctionfunctionWithName:kCAMediaTimingFunctionEaseIn];

        [aLayer addAnimation:animation forKey:@"transform"];

该代码可实现CAlayer的缩放