Example
- Support Portrait and Landscape both type of image
- Drawing and other subviews can be merged in my case I'm adding label to draw
{
CGSize fullSize = getImageForEdit.size;
CGSize sizeInView = AVMakeRectWithAspectRatioInsideRect(imgViewFake.image.size, imgViewFake.bounds).size;
CGFloat orgScale = orgScale = fullSize.width/sizeInView.width;
CGSize newSize = CGSizeMake(orgScale * img.image.size.width, orgScale * img.image.size.height);
if(newSize.width <= fullSize.width && newSize.height <= fullSize.height){
newSize = fullSize;
}
CGRect offsetRect;
if (getImageForEdit.size.height > getImageForEdit.size.width){
CGFloat scale = newSize.height/fullSize.height;
CGFloat offset = (newSize.width - fullSize.width*scale)/2;
offsetRect = CGRectMake(offset, 0, newSize.width-offset*2, newSize.height);
}
else{
CGFloat scale = newSize.width/fullSize.width;
CGFloat offset = (newSize.height - fullSize.height*scale)/2;
offsetRect = CGRectMake(0, offset, newSize.width, newSize.height-offset*2);
}
UIGraphicsBeginImageContextWithOptions(newSize, NO, getImageForEdit.scale);
[getImageForEdit drawAtPoint:offsetRect.origin];
// [img.image drawInRect:CGRectMake(0,0,newSize.width,newSize.height)];
CGFloat oldScale = img.contentScaleFactor;
img.contentScaleFactor = getImageForEdit.scale;
[img drawViewHierarchyInRect:CGRectMake(0, 0, newSize.width, newSize.height) afterScreenUpdates:YES];
img.contentScaleFactor = oldScale;
UIImage *combImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
imageData = UIImageJPEGRepresentation(combImage, 1);
}