指示器代码段（2D绘图用于日志记录）

来源：互联网发布：yaahp软件官方下载编辑：程序博客网时间：2024/06/05 15:56

// 红色指示器

    CAShapeLayer *shapeLayerLine = [CAShapeLayer layer];
    shapeLayerLine.strokeColor = [UIColor redColor].CGColor;
    shapeLayerLine.fillColor = INDICATORCOLOR;
    shapeLayerLine.lineWidth = 1.f;
    shapeLayerLine.lineCap = kCALineCapSquare;

    NSUInteger ruleHeight = 20; // 文字高度
    CGMutablePathRef pathLine = CGPathCreateMutable();
    //画笔终点
    CGPathMoveToPoint(pathLine, NULL, self.frame.size.width / 2, self.frame.size.height - DISTANCETOPANDBOTTOM - ruleHeight);
    //画中线
    CGPathAddLineToPoint(pathLine, NULL, self.frame.size.width / 2, DISTANCETOPANDBOTTOM + SHEIGHT);
    //画左侧斜线
    CGPathAddLineToPoint(pathLine, NULL, self.frame.size.width / 2 - SHEIGHT / 2, DISTANCETOPANDBOTTOM);
    //画右侧斜线
    CGPathAddLineToPoint(pathLine, NULL, self.frame.size.width / 2 + SHEIGHT / 2, DISTANCETOPANDBOTTOM);
    //再画一条中线用于覆盖
    CGPathAddLineToPoint(pathLine, NULL, self.frame.size.width / 2, DISTANCETOPANDBOTTOM + SHEIGHT);

    shapeLayerLine.path = pathLine;
    [self.layer addSublayer:shapeLayerLine];

0 0