#import <UIKit/UIKit.h> @interface CircleProgressView : UIView /**起始值（0-1）*/
@property(nonatomic,assign)CGFloat fstartValue; /**边框宽度*/
@property(nonatomic,assign)CGFloat flineWidth; /**线条颜色*/
@property(nonatomic,strong)UIColor *lineColor; /**变化的值*/
@property(nonatomic,assign)CGFloat fvalue;
@end
#import "CircleProgressView.h"
@interface CircleProgressView ()
{
CAShapeLayer *_shapeLayer;
}
@end
@implementation CircleProgressView
@synthesize fstartValue=_fstartValue;
@synthesize flineWidth=_flineWidth;
@synthesize lineColor=_lineColor;
@synthesize fvalue=_fvalue; - (instancetype)initWithFrame:(CGRect)frame
{
self = [super initWithFrame:frame];
if (self)
{
/**创建带形状的图层*/
_shapeLayer=[CAShapeLayer layer];
_shapeLayer.frame = self.bounds;
_shapeLayer.strokeEnd = .f; /*创建布赛尔曲线*/
UIBezierPath *path = [UIBezierPath bezierPathWithOvalInRect:self.bounds]; /**把图层和不塞尔曲线通过path进行关联*/
_shapeLayer.path = path.CGPath; /**设置图层的填充颜色、宽度、边框颜色*/
_shapeLayer.fillColor = [UIColor clearColor].CGColor;
_shapeLayer.lineWidth = 1.0f;
_shapeLayer.strokeColor = [UIColor redColor].CGColor; [self.layer addSublayer:_shapeLayer];
}
return self;
}
/**
* @brief 重写fstartValue的setter方法
* @param fstartValue 设置圆形strokeStart起始值
* @since
*/
- (void)setFstartValue:(CGFloat)fstartValue
{
_fstartValue = fstartValue;
_shapeLayer.strokeStart = fstartValue; }
- (CGFloat)fstartValue
{
return _fstartValue;
}
/**
* @brief 重写flineWidth的setter方法
* @param flineWidth 设置圆形边框宽度
* @since
*/ - (void)setFlineWidth:(CGFloat)flineWidth
{
_flineWidth = flineWidth;
_shapeLayer.lineWidth = flineWidth;
}
/**
* @brief 重写lineColor的setter方法
* @param lineColor 设置圆形边框颜色
* @since
*/ - (void)setLineColor:(UIColor *)lineColor
{
_lineColor = lineColor;
_shapeLayer.strokeColor = lineColor.CGColor;
}
- (UIColor *)lineColor
{
return _lineColor;
}
/**
* @brief 重写fvalue的setter方法
* @param lineColor 设置圆形的strokeEnd值
* @since
*/
- (void)setFvalue:(CGFloat)fvalue
{
_fvalue = fvalue;
_shapeLayer.strokeEnd = fvalue;
} - (CGFloat)fvalue
{
return _fvalue;
}
@end
#import "ViewController.h"
#import "CircleProgressView.h"
@interface ViewController ()
{
CircleProgressView *progress;
}
@end @implementation ViewController - (void)viewDidLoad
{
[super viewDidLoad]; progress = [[CircleProgressView alloc]initWithFrame:CGRectMake(, , , )];
progress.center = self.view.center;
progress.lineColor = [UIColor redColor];
progress.flineWidth = 1.0f;
progress.fstartValue = ;
[self.view addSubview:progress];
[NSTimer scheduledTimerWithTimeInterval:1.0f target:self selector:@selector(circleAnimation) userInfo:nil repeats:YES]; }
- (void)circleAnimation
{
progress.fvalue = arc4random()%/.f;
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning]; } @end