话不多说，直接撸代码
// // gzhCache.h // cache // // Created by 郭志贺 on 2020/5/27. // Copyright © 2020 郭志贺. All rights reserved. // #import <Foundation/Foundation.h> NS_ASSUME_NONNULL_BEGIN @interface gzhCache : NSObject /// 计算缓存大小 +(float)filePath; /// 清理缓存 +(void)clearCache; @end NS_ASSUME_NONNULL_END
//
// gzhCache.m
// cache
//
// Created by 郭志贺 on 2020/5/27.
// Copyright © 2020 郭志贺. All rights reserved.
//
#import "gzhCache.h"
@implementation gzhCache
// 显示缓存大小
+ (float)filePath {
NSString * cachPath = [ NSSearchPathForDirectoriesInDomAIns ( NSCachesDirectory , NSUserDomainMask , YES ) firstObject ];
return [ self folderSizeAtPath :cachPath];
}
//计算单个文件的大小
+ (long long) fileSizeAtPath:( NSString *) filePath{
NSFileManager * manager = [ NSFileManager defaultManager ];
if ([manager fileExistsAtPath :filePath]){
return [[manager attributesOfItemAtPath :filePath error : nil ] fileSize ];
}
return 0 ;
}
//遍历文件夹获得文件夹大小，返回多少M
+ (float)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];
folderSize += [ self fileSizeAtPath :fileAbsolutePath];
}
return folderSize/( 1024.0 * 1024.0 );
}
//清理缓存
+ (void)clearCache {
NSString * cachPath = [ NSSearchPathForDirectoriesInDomains ( NSCachesDirectory , NSUserDomainMask , YES ) firstObject ];
NSArray * files = [[ NSFileManager defaultManager ] subpathsAtPath :cachPath];
NSLog ( @"cachpath = %@" , cachPath);
for ( NSString * p in files) {
NSError * error = nil ;
NSString * path = [cachPath stringByAppendingPathComponent :p];
if ([[ NSFileManager defaultManager ] fileExistsAtPath :path]) {
[[ NSFileManager defaultManager ] removeItemAtPath :path error :&error];
}
}
[ self performSelectorOnMainThread : @selector (clearCachSuccess) withObject : nil waitUntilDone : YES ];
}
+ (void)clearCachSuccess {
NSLog(@"清理成功");
}
@end
需要查询大小的地方使用：
NSString *str = [NSString stringWithFormat:@"%.2fM",[gzhCache filePath]];
清理的方法调用
[gzhCache clearCache];
以上内容仅代表本菜鸟看法，复制可直接使用。如有不妥之处敬请告知。
