ios 如何获取 UIImage 的大小 (KB)
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时间：2020-08-30 22:21:52 来源:igfitidea点击:
How to get the Size (KB) of UIImage
提问by Amir iDev
I am getting Image from didFinishPickingMediaWithInfo.
我从didFinishPickingMediaWithInfo.
UIImage *originalImage = (UIImage*)[info valueForKey:UIImagePickerControllerOriginalImage];
I want to get the size of Image in Kb.
我想以 Kb 为单位获取图像的大小。
回答by Mutawe
UIImage *originalImage = (UIImage*)[info valueForKey:UIImagePickerControllerOriginalImage];
NSData *imgData = UIImageJPEGRepresentation(originalImage, 1); //1 it represents the quality of the image.
NSLog(@"Size of Image(bytes):%d",[imgData length]);
imgData = nil;
回答by Itachi
I think the op's size (kb)is the memory size of originalImage, right?
我认为 opsize (kb)是 的内存大小originalImage，对吗？
Check out the usage about malloc_sizeunder the ARC refer to this.
查看malloc_sizeARC下的用法，请参阅this。
#import <malloc/malloc.h>
NSLog(@"Size of %@: %zd", NSStringFromClass([originalImage class]), malloc_size((__bridge const void *)originalImage));
