Kulexiu/KulexiuForStudent/KulexiuForStudent/Common/Tools/DiskSizeManager/DiskFreeSpaceManager.m

//
//  DiskFreeSpaceManager.m
//  StudentDaya
//
//  Created by Kyle on 2021/10/9.
//  Copyright © 2021 DayaMusic. All rights reserved.
//

#import "DiskFreeSpaceManager.h"

@implementation DiskFreeSpaceManager

+ (CGFloat)QueryDiskSpaceFree {
    NSURL *fileUrl = [NSURL fileURLWithPath:NSHomeDirectory()];
    int64_t space = 0;
    if (@available(iOS 11.0, *)) {
        NSDictionary *spaceDict = [fileUrl resourceValuesForKeys:@[NSURLVolumeAvailableCapacityForImportantUsageKey] error:nil];
        space = [spaceDict[NSURLVolumeAvailableCapacityForImportantUsageKey] longLongValue];
        
    } else {
        NSError *error = nil;
        NSDictionary *attrs = [[NSFileManager defaultManager] attributesOfFileSystemForPath:NSHomeDirectory() error:&error];
        if (error) {
            return -1;
        }
        space = [[attrs objectForKey:NSFileSystemFreeSize] longLongValue];
        if (space < 0) {
            space = -1;
        }
    }
    CGFloat freeSize = space * 1.0 / 1024.0 / 1024.0 / 1024.0;
    NSLog(@"free size %f", freeSize);
    return freeSize;
}

@end