话不多说，直接撸代码
//
// gzhCache.h
// cache
//
// Created by 郭志贺 on /5/27.
// Copyright © 郭志贺. All rights reserved.
//
#import
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 /5/27.
// Copyright © 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。
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