IOS 简单的 加减分 动画

使用 shapeLayer 当动画层 其实以前有写过 类似的了

github: https://github.com/li6185377/AddScore

self.pregress = [[CAShapeLayer alloc]init];

_pregress.frame = CGRectMake(15,18, 64,64);

_pregress.lineWidth= 3;

_pregress.fillColor= [UIColor colorWithWhite:0 alpha:0].CGColor;

_pregress.strokeColor = RGBCOLOR(225,140,150).CGColor;

_pregress.lineCap = @"round";

_pregress.strokeStart = 0;

_pregress.strokeEnd = 0;

_pregress.path = CGPathCreateWithEllipseInRect(pregress_bg.bounds, NULL);

_pregress.transform = CATransform3DMakeRotation(M_PI, 0, 0, 1);

[self.layer addSublayer:_pregress];