1 + (UIImage *)imageWitCornerRadius:(float)cornerRadius image:(UIImage *)original 2 { 3 CGRect frame = CGRectMake(0, 0, original.size.width, original.size.height); 4 UIGraphicsBeginImageContextWithOptions(original.size, NO, 1.0); 5 6 [[UIBezierPath bezierPathWithRoundedRect:frame cornerRadius:cornerRadius] addClip]; 7 [original drawInRect:frame]; 8 9 UIImage *image = UIGraphicsGetImageFromCurrentImageContext(); 10 UIGraphicsEndImageContext(); 11 12 return image; 13 }
//图片压缩
1 + (UIImage *)scaleToSize:(UIImage *)img size:(CGSize)size{ 2 UIGraphicsBeginImageContext(size); 3 [img drawInRect:CGRectMake(0, 0, size.width, size.height)]; 4 UIImage* scaledImage = UIGraphicsGetImageFromCurrentImageContext(); 5 UIGraphicsEndImageContext(); 6 return scaledImage; 7 }