Quartz 2D绘制
- (void)addBorderToLayer2:(UIView*)view
{
CAShapeLayer *shapeLayer = [CAShapeLayer layer];
[shapeLayersetBounds:view.bounds];
[shapeLayersetPosition:CGPointMake(CGRectGetWidth(view.frame) / 2, CGRectGetHeight(view.frame)/2)];
[shapeLayersetStrokeColor:[UIColor lightGrayColor].CGColor];
[shapeLayersetLineWidth:0.5];
// 设置线宽,线间距
[shapeLayersetLineDashPattern:@[@6,@10]];
// 设置路径
CGMutablePathRef path = CGPathCreateMutable();
CGPathMoveToPoint(path, NULL, 0, 0);
if (CGRectGetWidth(view.frame) > CGRectGetHeight(view.frame)) {
CGPathAddLineToPoint(path, NULL, CGRectGetWidth(view.frame),0);
}else{
CGPathAddLineToPoint(path, NULL, 0,CGRectGetHeight(view.frame));
}
[shapeLayersetPath:path];
CGPathRelease(path);
// 把绘制好的虚线添加上来
[view.layeraddSublayer:shapeLayer];
}