- (void)setCornerRadiusWithTopLeft:(CGFloat)topLefttopRight:(CGFloat)topRightbottomLeft:(CGFloat)bottomLeftbottomRight:(CGFloat)bottomRightimageView:(UIImageView*)imageView{

? ? CGFloatminX =CGRectGetMinX(imageView.bounds);

? ? CGFloatminY =CGRectGetMinY(imageView.bounds);

? ? CGFloatmaxX =CGRectGetMaxX(imageView.bounds);

? ? CGFloatmaxY =CGRectGetMaxY(imageView.bounds);

? ? CGFloattopLeftCenterX = minX + topLeft;

? ? CGFloattopLeftCenterY = minY + topLeft;

? ? CGFloattopRightCenterX = maxX - topRight;

? ? CGFloattopRightCenterY = minY + topRight;

? ? CGFloatbottomLeftCenterX = minX + bottomLeft;

? ? CGFloatbottomLeftCenterY = maxY - bottomLeft;

? ? CGFloatbottomRightCenterX = maxX - bottomRight;

? ? CGFloatbottomRightCenterY = maxY - bottomRight;

? ? UIBezierPath *path = [UIBezierPath bezierPath];

? ? [pathaddArcWithCenter:CGPointMake(topLeftCenterX, topLeftCenterY)radius:topLeftstartAngle:M_PIendAngle:3*M_PI/2.0clockwise:YES];

? ? [pathaddArcWithCenter:CGPointMake(topRightCenterX, topRightCenterY)radius:topRightstartAngle:3*M_PI/2.0endAngle:0clockwise:YES];

? ? [pathaddArcWithCenter:CGPointMake(bottomRightCenterX, bottomRightCenterY)radius:bottomRightstartAngle:0endAngle:M_PI_2clockwise:YES];

? ? [pathaddArcWithCenter:CGPointMake(bottomLeftCenterX, bottomLeftCenterY)radius:bottomLeftstartAngle:M_PI_2endAngle:M_PIclockwise:YES];

? ? CAShapeLayer*masklayer = [[CAShapeLayeralloc]init];

? ? masklayer.frame= imageView.bounds;

? ? masklayer.path= path.CGPath;

? ? imageView.layer.mask= masklayer;

}