Display image size in MB format IOS 7

Question

I tying to check my image size after picking form the photo library by using this code.

 NSData *imageData1 = [[NSData alloc] initWithData:UIImageJPEGRepresentation((imageview.image), 0.5)];

   int imageSize = imageData1.length;
   NSLog(@"SIZE OF IMAGE: %i ", imageSize);

But showing something like this .

SIZE OF IMAGE: 237125 

But i want to view the image size in the MB format like 25 MB how to do pls tell me how to do it.

thanks.

Answer 1

imageSize has data length in bytes. You need to convert it to Mb

NSLog(@"SIZE OF IMAGE: %i Mb", imageSize/1024/1024);

UPDATE:

You can also use following code

NSLog(@"SIZE OF IMAGE: %.2f Mb", (float)imageSize/1024/1024);

to receive output like

SIZE OF IMAGE: 0.23 Mb

for sizes less the 1 Mb.

Answer 2

[NSByteCountFormatter stringFromByteCount:imageSize 
                      countStyle:NSByteCountFormatterCountStyleFile];

Answer 3

Complementing @rounak 's answer, in Swift 3:

ByteCountFormatter.string(fromByteCount: Int64(imageSize), countStyle: .file)