UIImageを指定サイズにリサイズするSnippet

- (UIImage *)resizeImage:(UIImage *)image width:(CGFloat)width height:(CGFloat)height{

UIImage *returnImage = nil; //リサイズ後のUIImage

UIGraphicsBeginImageContext(CGSizeMake(width, height));

[image drawInRect:CGRectMake(0, 0, width, height)];

returnImage = UIGraphicsGetImageFromCurrentImageContext();

UIGraphicsEndImageContext();

return returnImage;

}