UIImage size in UIImageView

Question

I have some UIImage and display it in UIImageView.

I need to use UIViewContentModeScaleAspectFit content mode.

Here i

Answer 1

you can also get it by using below method:

-(CGSize)imageSizeAfterAspectFit:(UIImageView*)imgview{


float newwidth;
float newheight;

UIImage *image=imgview.image;

if (image.size.height>=image.size.width){
    newheight=imgview.frame.size.height;
    newwidth=(image.size.width/image.size.height)*newheight;

    if(newwidth>imgview.frame.size.width){
        float diff=imgview.frame.size.width-newwidth;
        newheight=newheight+diff/newheight*newheight;
        newwidth=imgview.frame.size.width;
    }

}
else{
    newwidth=imgview.frame.size.width;
    newheight=(image.size.height/image.size.width)*newwidth;

    if(newheight>imgview.frame.size.height){
        float diff=imgview.frame.size.height-newheight;
        newwidth=newwidth+diff/newwidth*newwidth;
        newheight=imgview.frame.size.height;
    }
}

NSLog(@"image after aspect fit: width=%f height=%f",newwidth,newheight);

return CGSizeMake(newwidth, newheight);

}