DrawAnimationLine

CABasicAnimation + CAShapeLayer 实现动画画线。

    //添加path的UIView
    ShapeView  *pathShapeView = [[ShapeView alloc] init];
    pathShapeView.backgroundColor = [UIColor clearColor];
    pathShapeView.opaque = NO;
    pathShapeView.translatesAutoresizingMaskIntoConstraints = NO;
    [self addSubview:pathShapeView];
    
    //设置线条的颜色
    UIColor *pathColor = nil;
    pathColor = [UIColor colorWithRed:96.0/255 green:142.0/255 blue:190.0/255 alpha:1.0f];
    pathShapeView.shapeLayer.fillColor = nil;
    pathShapeView.shapeLayer.strokeColor = pathColor.CGColor;
    pathShapeView.shapeLayer.lineWidth = LINEWIDE;
    
    //创建动画
    CABasicAnimation *animation = [CABasicAnimation animationWithKeyPath:NSStringFromSelector(@selector(strokeEnd))];
    animation.fromValue = @0.0;
    animation.toValue = @1.0;
    animation.duration = [[timeArray objectAtIndex:i] floatValue];//kDuration;
    [pathShapeView.shapeLayer addAnimation:animation forKey:NSStringFromSelector(@selector(strokeEnd))];
    [self updatePathsWithPathShapeView:pathShapeView];