Ios 如何在两点之间画一条线目标C

尝试在两个点ImageView之间绘制直线时，会在另一个位置生成该直线

这是我的代码：

- (void)drawLine:(UIView*)currentPoint endPoint:(UIImageView*)lastPoint{

    UIBezierPath* path = [UIBezierPath bezierPath];
    [path moveToPoint:currentPoint.center];
    [path addLineToPoint:lastPoint.center];


    CAShapeLayer *shapeLayer = [CAShapeLayer layer];
    shapeLayer.path = [path CGPath];
    shapeLayer.strokeColor = [[UIColor whiteColor] CGColor];
    shapeLayer.lineWidth = 1.0;
    [self.DrawView.layer addSublayer:shapeLayer];

}

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看起来你需要给你的收银机一个框架

shapeLayer.frame=CGRectMake0,01000

类似这样的内容请确保您的currentPoint和lastPoint位于self.DrawView中

您可以在currentPoint.superview.layer中添加线，如下所示

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一切看起来都很好。您能分享/检查您传递给绘图线功能的CGPoints值吗

- (void)drawLine: (UIView*)currentPoint endPoint:(UIImageView*)lastPoint{
    UIBezierPath* path = [UIBezierPath bezierPath];
    [path moveToPoint:currentPoint.center];
    [path addLineToPoint:lastPoint.center];

    CAShapeLayer *shapeLayer = [CAShapeLayer layer];
    shapeLayer.path = [path CGPath];
    shapeLayer.strokeColor = [[UIColor whiteColor] CGColor];
    shapeLayer.lineWidth = 1.0;
    [currentPoint.superview.layer addSublayer:shapeLayer];
}