//    寻找地址

       

NSString

* path = [

NSHomeDirectory

()

stringByAppendingString

:

@"/Library/Caches"

];

       

//    文件管理者

       

NSFileManager

*fileManager = [

NSFileManager

defaultManager

] ;

        

               

NSDictionary

* dict = [fileManager

attributesOfItemAtPath

:path

error

:

nil

];

       

//    提示框

       

UIAlertController

*alertC = [

UIAlertController

alertControllerWithTitle

:[

NSString

stringWithFormat

:

@"缓存共有%.2f M"

, ([[dict

objectForKey

:

NSFileSize

]

/**  <-文件大小 ||  转换成数字 -> **/

doubleValue

] /

1024.0

)]

message

:

@"要清除么?"

preferredStyle

:

UIAlertControllerStyleAlert

];

       

        [alertC

addAction

:[

UIAlertAction

actionWithTitle

:

@"确认"

style

:

UIAlertActionStyleDefault

handler

:^(

UIAlertAction

*

_Nonnull

action) {

           

           

if

([fileManager

fileExistsAtPath

:path]) {

               

NSArray

*childerFiles=[fileManager

subpathsAtPath

:path];

               

for

(

NSString

*fileName

in

childerFiles) {

                   

//如有需要，加入条件，过滤掉不想删除的文件

                   

NSString

*absolutePath=[path

stringByAppendingPathComponent

:fileName];

                   

//    删除文件

                    [fileManager

removeItemAtPath

:absolutePath

error

:

nil

];

                }

            }

           

//   清除SDWebImage缓存图片

            [[

SDImageCache

sharedImageCache

]

cleanDisk

];

           

        }]];

        [alertC

addAction

:[

UIAlertAction

actionWithTitle

:

@"取消"

style

:

UIAlertActionStyleDefault

handler

:^(

UIAlertAction

*

_Nonnull

action) {

         

//   不作任何动作

  

        }]];

        [

self

presentViewController

:alertC

animated

:

YES

completion

:^{

           

//   添加到VC的View上

 

        }];