iOS File Manager and file docking device

File Manager:

1 #import "ViewController.h"2 3 @interfaceViewcontroller ()4 5 @end6 7 @implementationViewcontroller8 9- (void) Viewdidload {Ten [Super Viewdidload]; One     //additional setup after loading the view, typically from a nib. A      - #pragmaMark-File Manager creation -     //Creating Objects theNsfilemanager *manager =[Nsfilemanager Defaultmanager]; -      -     //Create Path -NSString *path =nshomedirectory (); +    -Path = [path stringbyappendingpathcomponent:@"Test/myapp"]; +NSLog (@"Path =%@", path); ABOOL success =[manager Createdirectoryatpath:path Withintermediatedirectories:yes Attributes:nil Error:nil]; at     if(Success) { -NSLog (@"file creation succeeded"); -}Else { -NSLog (@"File creation failed"); -     } -      inNSString *path2 = [path stringbyappendingpathcomponent:@"Test2/myapp"]; -NSLog (@"======%@", path2); to [manager createdirectoryatpath:path2 Withintermediatedirectories:yes Attributes:nil Error:nil]; +      - #pragmaMark-File Manager add the     //to add a string to a folder *Path = [path stringbyappendingpathcomponent:@"Zifuchuan.txt"]; $    Panax Notoginseng     //Initializes a string -NSString *string=@"today is a number-one entry ."; theBOOL Success1 = [stringwritetofile:path atomically:yes encoding:nsutf8stringencoding Error:nil]; +     if(SUCCESS1) { ANSLog (@"Success"); theNSLog (@"path=========%@", path); +}Else { -NSLog (@"failed"); $     } $      -Path = [path2 stringbyappendingpathcomponent:@"New.text"]; -NSString *newstr =@"Just write some."; the [newstr writetofile:path atomically:yes encoding:nsutf8stringencoding Error:nil]; -NSLog (@"-------%@", path);Wuyi      the #pragmaMark-File Manager Delete -[Manager Removeitematpath:path Error:nil];//Delete the document under this folder, the folder cannot be deleted Wu #pragmaMark-File Manager Mobile, copy -      About     //Documents Path $NSString *documentpath = [Nssearchpathfordirectoriesindomains (nsdocumentdirectory, NSUserDomainMask, YES) Objectatindex:0]; -      -     //Create a folder stringbydeletinglastpathcomponent delete the last part of the content -NSString *copypath = [Documentpath stringbyappendingpathcomponent:@"Backup/text.txt"]; A [manager Createdirectoryatpath:[copypath Stringbydeletinglastpathcomponent] Withintermediatedirectories:yes Attributes:nil Error:nil]; +NSString *str =@"txt text when writing content inside"; theNSData *data = [str datausingencoding:nsutf8stringencoding];//convert string to data type - [manager Createfileatpath:copypath Contents:data Attributes:nil]; $NSLog (@"-=-=-=-=-=%@", Copypath); the      the    //Create a Topath to move/copy the contents of the Copypath to Topath theNSString *topath = [Documentpath stringbyappendingpathcomponent:@"Hello/wode.txt"]; the      - [manager Createdirectoryatpath:[topath Stringbydeletinglastpathcomponent] Withintermediatedirectories:yes Attributes:nil Error:nil]; in     //Moving the     //[manager Moveitematpath:copypath Topath:topath Error:nil]; theNSLog (@"Topath =%@", Topath); About     //Copy the [manager Copyitematpath:copypath Topath:topath Error:nil]; the      the } +  - @end

File Docking Device:

1 @interfaceViewcontroller ()2 3 @end4 5 @implementationViewcontroller6 7- (void) Viewdidload {8 [Super Viewdidload];9     //additional setup after loading the view, typically from a nib.Ten #pragmaMark-Create a file using Nsfilemessage OneNsfilemanager *filemanager =[Nsfilemanager Defaultmanager]; ANSString *documentpath =[Nssearchpathfordirectoriesindomains (NSDocumentDirectory, Nsuserdomainmask, YES) firstobject]; -NSString *strpath = [Documentpath stringbyappendingpathcomponent:@"file.txt"]; -      the[FileManager Createfileatpath:strpath contents:[@"Hello"datausingencoding:nsutf8stringencoding] Attributes:nil]; -      -NSLog (@"%@", strpath); -      + #pragmaMark-Append content to file using Nsfilehandle -     //Create a Handle object +Nsfilehandle *filehandle =[Nsfilehandle Filehandleforupdatingatpath:strpath]; A     //Search to end of text content at [FileHandle seektoendoffile]; -      -NSString *appendstr =@"I'm handle's content."; - [FileHandle writedata:[appendstr datausingencoding:nsutf8stringencoding]; -      - [FileHandle CloseFile]; in      - #pragmaMark-Positioning data to      +     //write "123456" to the File2.txt folder -NSString * content =@"123456"; theNSString * filePath2 = [Documentpath stringbyappendingpathcomponent:@"File2.txt"]; * [FileManager createfileatpath:filepath2 contents:[content datausingencoding:nsutf8stringencoding] Attributes: NIL]; $     Panax Notoginseng     //Read through FileHandle -FileHandle =[Nsfilehandle filehandleforreadingatpath:filepath2]; the     //Get Data length +Nsuinteger length =[[FileHandle availabledata] length]; A     //half of the offset file the[FileHandle seektofileoffset:length/2.0]; +     //read from half position to last -NSData * data =[FileHandle readdatatoendoffile]; $ [FileHandle CloseFile]; $     //print a read string -NSString *string=[[NSString alloc] Initwithdata:data encoding:nsutf8stringencoding]; -NSLog (@"%@",string); the      - }Wuyi  the- (void) didreceivememorywarning { - [Super didreceivememorywarning]; Wu     //Dispose of any resources the can be recreated. - } About  $ @end

iOS File Manager and file docking device