Connection to assetsd was interrupted or assetsd died (with memory warnings)

We are trying to let users import picture from their albums(UIImagePickerController) and also we are scaling/resizing down images that are greater than 8 megapixels(iPhone standard).

But every time the app crashes with Connection to assetsd was interrupted or assetsd died and Received memory warning warnings after or before importing picture.At times Received memory warning warning pops up when still looking for picture to import in UIImagePickerController.

Specially on iPhone 4S this is worse, please help us in optimising our code so that it runs without warnings and crashes on older devices like iPhone 4S or iPad 2.

Let us know if we are doing anything wrong in scaling/resizing down image using CoreGraphics.(Because this is where huge memory is used).

 - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
    {
        UIImage *selectedImage=[info objectForKey:UIImagePickerControllerOriginalImage];
        if(UI_USER_INTERFACE_IDIOM()==UIUserInterfaceIdiomPhone)
        {
            [picker dismissViewControllerAnimated:YES completion:nil];
        }
        else
        {
            [popoverController dismissPopoverAnimated:YES];
            [self popoverControllerDidDismissPopover:popoverController];
        }

        // COMPRESSING IMAGE
        NSData   *selectedImageData=UIImageJPEGRepresentation(selectedImage, 0.1);
        UIImage *selectedImageFromData=[UIImage imageWithData:selectedImageData];

        // IMAGE ASPECT RATIO
        CGFloat originalWidth=selectedImageFromData.size.width;
        CGFloat originalHeight=selectedImageFromData.size.height;
        CGFloat myWidth=2048;
        CGFloat myHeight=2048;
        CGFloat widthRatio=myWidth/originalWidth;
        CGFloat heightRatio=myHeight/originalHeight;
        CGFloat dynamicWidth=heightRatio*originalWidth;
        CGFloat dynamicHeight=widthRatio*originalHeight;


        //SCALING UIIMAGE MORE THAN 8 MEGAPIXELS
        if (((selectedImageFromData.size.width>3264) && (selectedImageFromData.size.height>2448)) || ((selectedImageFromData.size.height>3264) && (selectedImageFromData.size.width>2448)))
        {



             // DATA FROM UIIMAGE TO CORE GRAPHICS
             CGImageRef CoreGraphicsImage=selectedImageFromData.CGImage;
            CGColorSpaceRef colorSpace = CGImageGetColorSpace(CoreGraphicsImage);
            CGBitmapInfo bitmapInfo=CGImageGetBitmapInfo(CoreGraphicsImage);
            CGImageGetBitsPerComponent(CoreGraphicsImage);


            // RESIZING WIDTH OF THE IMAGE
            if (originalWidth>originalHeight)
            {


            CGContextRef context=CGBitmapContextCreate(NULL, myWidth, dynamicHeight, CGImageGetBitsPerComponent(CoreGraphicsImage), CGImageGetBytesPerRow(CoreGraphicsImage), colorSpace, bitmapInfo);


            CGContextSetInterpolationQuality(context, kCGInterpolationHigh);
            CGContextDrawImage(context, CGRectMake(0, 0, myWidth, dynamicHeight), CoreGraphicsImage);
            CGImageRef CGscaledImage=CGBitmapContextCreateImage(context);
                UIImage *CGLastimage = [UIImage imageWithCGImage: CGscaledImage];
                NSLog(@"%f",CGLastimage.size.width);
                NSLog(@"%f",CGLastimage.size.height);

                VisualEffectImageVIew.image=CGLastimage;
                BackgroundImageView.image=CGLastimage;
                ForegroundImageView.image=CGLastimage;
            }


            //RESIZING HEIGHT OF THE IMAGE
            if (originalHeight>originalWidth)
            {
                CGContextRef context=CGBitmapContextCreate(NULL, dynamicWidth, myHeight, CGImageGetBitsPerComponent(CoreGraphicsImage), CGImageGetBytesPerRow(CoreGraphicsImage), colorSpace, bitmapInfo);


                CGContextSetInterpolationQuality(context, kCGInterpolationHigh);
                CGContextDrawImage(context, CGRectMake(0, 0, dynamicWidth, myHeight), CoreGraphicsImage);
                CGImageRef CGscaledImage=CGBitmapContextCreateImage(context);
                UIImage *CGLastimage = [UIImage imageWithCGImage: CGscaledImage];

                NSLog(@"%f",CGLastimage.size.width);
                NSLog(@"%f",CGLastimage.size.height);

                VisualEffectImageVIew.image=CGLastimage;
                BackgroundImageView.image=CGLastimage;
                ForegroundImageView.image=CGLastimage;

            }


        }
        else
        {
            NSLog(@" HEIGHT %f",selectedImageFromData.size.height);
            NSLog(@" WIDTH %f",selectedImageFromData.size.width);

        VisualEffectImageVIew.image=selectedImageFromData;
        BackgroundImageView.image=selectedImageFromData;
        ForegroundImageView.image=selectedImageFromData;
        }


    }

Memory Report

when scrolling in UIImagePickerController

http://ift.tt/1PwuBMq

when scaling/resizing UIImage

http://ift.tt/1cysc83