uiview的阴影设置主要通过uiview的layer的相关属性来设置
阴影的颜色
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imgview.layer.shadowcolor = [uicolor blackcolor].cgcolor; |
阴影的透明度
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imgview.layer.shadowopacity = 0.8f; |
阴影的圆角
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imgview.layer.shadowradius = 4.f; |
阴影偏移量
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imgview.layer.shadowoffset = cgsizemake(4,4); |
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imgview.layer.shadowoffset = cgsizemake(0,0); |
其实从偏移量上可以看出来，即使偏移量为(0,0)时，围绕view的四周依然能看到一定阴影。
阴影的路径
除了通过上面的操作，我们还可以设定阴影的路径
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//路径阴影uibezierpath *path = [uibezierpath bezierpath];[path movetopoint:cgpointmake(-5, -5)];//添加直线[path addlinetopoint:cgpointmake(paintingwidth /2, -15)];[path addlinetopoint:cgpointmake(paintingwidth +5, -5)];[path addlinetopoint:cgpointmake(paintingwidth +15, paintingheight /2)];[path addlinetopoint:cgpointmake(paintingwidth +5, paintingheight +5)];[path addlinetopoint:cgpointmake(paintingwidth /2, paintingheight +15)];[path addlinetopoint:cgpointmake(-5, paintingheight +5)];[path addlinetopoint:cgpointmake(-15, paintingheight /2)];[path addlinetopoint:cgpointmake(-5, -5)];//设置阴影路径 imgview.layer.shadowpath = path.cgpath; |
总结
以上就是这篇文章的全部内容，希望能对各位ios开发者们能有所帮助，如果有疑问大家可以留言交流。
原文链接：http://www.jianshu.com/p/575ce7d7b68f
