Crop a circle head in iOS

-(void) clipimage

{

0. Loading pictures

UIImage *image = [UIImage imagenamed:@ "Ali Avatar"];

1. Turn on the bitmap context, as large as the picture size

Uigraphicsbeginimagecontextwithoptions (image.size, NO, 0);

2. Set the circle clipping area, tangent and picture

2.1 Creating a circular path

Uibezierpath *path = [Uibezierpath bezierpathwithovalinrect:cgrectmake (0, 0, Image.size.width, image.size.height)];

2.2 Set the path to the cropping area

[Path Addclip];

3. Drawing pictures

[Image Drawatpoint:cgpointzero];

4. Get the picture from the context

UIImage *clipimage = Uigraphicsgetimagefromcurrentimagecontext ();

5. Close the context

Uigraphicsendimagecontext ();

_imageview.image = Clipimage;

}

Crop a circle head in iOS