- (CGFloat)folderSizeAtPath:(NSString *) folderPath
{
NSFileManager * manager = [NSFileManager defaultManager];

if (![manager fileExistsAtPath:folderPath])
{
return 0;
}

NSEnumerator * childFilesEnumerator = [[manager subpathsAtPath:folderPath] objectEnumerator];
NSString * fileName;

long long folderSize = 0;

while ((fileName = [childFilesEnumerator nextObject]) != nil)
{

NSString * fileAbsolutePath = [folderPath stringByAppendingPathComponent:fileName];

float singleFileSize = 0.0;
if ([manager fileExistsAtPath:fileAbsolutePath])
{
singleFileSize = [[manager attributesOfItemAtPath:fileAbsolutePath error:nil] fileSize];
NSLog(@"singleFileSize %f",singleFileSize);
}
folderSize += singleFileSize;

}
NSLog(@"count file size %f",folderSize/1000.0);
return folderSize/1000.0;

}

調用 ：

NSString * filePath = [[[NSBundle mainBundle] bundlePath] stringByAppendingPathComponent:[NSString stringWithFormat:@"/%@",@"TencentOpenApi_IOS_Bundle.bundle"]];

[self folderSizeAtPath:filePath];