「Objective-C」正規表現で画像圧縮をする方法
1.説明:
UIImage *yourImage= [self imageWithImageSimple:image scaledToSize:CGSizeMake(210.0, 210.0)];
2.サンプルコード
//画像圧縮
– ( UIImage *)imageWithImageSimple:( UIImage *)image scaledToSize:( CGSize )newSize
{
// Create a graphics image context
UIGraphicsBeginImageContext (newSize);
// Tell the old image to draw in this newcontext, with the desired
// new size
[image drawInRect : CGRectMake ( 0 , 0 ,newSize. width ,newSize. height )];
// Get the new image from the context
UIImage * newImage = UIGraphicsGetImageFromCurrentImageContext ();
// End the context
UIGraphicsEndImageContext ();
// Return the new image.
return newImage;
}