ios file explorer

Ios obtains the cache file size and clears the cache. ios obtains the cache size. Mobile applications generally perform offline cache processing when processing network resources. The image cache is the most typical one. The popular offline cache framework is SDWebImage. However, the offline cache occupies the storage space of the mobile phone. Therefore, the cac

[Reading Notes] iOS-header file import-@ class notes, ios -- @ class I. There are two different ways to import a header file: use quotation marks or angle brackets, for example, # import 2. Objective-C provides a method to reduce the impact of re-compilation caused by dependency. The dependency problem exists because

Several methods for obtaining file paths in iOS and ios The iphone Sandbox Model has four folders: What are they, where permanent data storage is generally stored, and how to get the simulator path. Documents, tmp, app, Library. (NSHomeDirectory ()), Manually saved files are in the documents file. Nsuserdefaults stores

IOS-read txt file Chinese garbled characters, ios-read txt garbled characters I. Scenario Description: A txt file is encoded in UTF-8 in the background. It is read from the txt file in the MACOs Xcode development environment. Chinese characters may be garbled and English cha

[IOS development-101] solution: The file * couldn't be opened because you don't have permission to view it, ios-101 (1) The error message "The file * couldn't be opened because you don't have permission to view it" appears for no reason. Solution: Window> Organizer> select your project name on the left of the box b

IOS development-AFNetworking encapsulates Get and Post requests and file downloads, and ios-afnetworking AFNetworking is a powerful network third-party library. First, you need to introduce the AFNetworking third-party library. If the package is incorrect, please point it out. Thank you!1. Get request /** Get request Url server request address The success server

[Code Note] iOS-json File Parsing Methods: ios-json 1. Engineering Drawing. Ii. Code. # Import "ViewController. h "# import" SBJson. h "@ interface ViewController () @ end @ implementation ViewController-(void) viewDidLoad {[super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. // The first JSON parsing method. The built-in

IOS-json File Analysis Methods: ios-json1. Engineering Drawing. Ii. Code. # Import "ViewController. h" # Import "SBJson. h" @ Interface ViewController () @ End @ Implementation ViewController -(Void) viewDidLoad { [Super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. // The first JSON parsing method is the built-in JSON

1. iOS sandbox mechanismiOS applications can only read files in the file system created for the program, not access to other places, this area is a sandbox, so all non-code files to be stored in this, such as icons, sounds, images, attributes list, text files and so on.1.1. Each application has its own storage space1.2, the application can not turn over their walls to access the contents of other storage sp

NextIOS sandbox mechanism and file operations for iOS Learning (1) Let's see how to get the sandbox directory of the application. Including the sandbox directory of the real machine. 1. Get the Home Directory of the program NSString *homeDirectory = NSHomeDirectory(); NSLog(@"path:%@", homeDirectory); Print result: 2012-06-17 14:00:06.098 IosSandbox[3536:f803] /Users/rongfzh/Library/Application

1. iOS sandbox mechanismiOS apps can only read files in the file system created for the program, and not be able to go anywhere else, this area is a sandbox, so all non-code files are saved in this, image, icon, sound, images, attribute list, text file, etc.1.1. Each application has its own storage space1.2, the application can not turn over their walls to access

1. iOS sandbox mechanismiOS applications can only read files in the file system created for the program, not access to other places, this area is a sandbox, so all non-code files to be stored in this, such as icons, sounds, images, attributes list, text files and so on.1.1. Each application has its own storage space1.2, the application can not turn over their walls to access the contents of other storage sp

1.Create A. pch file.2.Write your macro, headfiles or something. Here is my prefixheader.pch3.Choose the Project and select "Build Settings">>> Find with keywords "prefix">>>make the "precompile Prefix Header" is "Yes".4.Tell Xcode where has you put your. pch file. Select "Prefix Header", Double click the contentand write "$ (srcroot)/magicnote/prefixheader.pch"or "$ (project_dir)/your PROJECT name/your

The project has a download file function, download needs to be able to view, can not be for each type of file to write a view function bar. The good news is that iOS has a uidocumentinteractioncontroller that can help you tune up the installed apps on your phone to see the files. First, configure the Info.plist file t

IOS-Plist file storage (1), iosplist File 1. What is a file system? In IOS, each app has its own file system and corresponding access permissions, which are generally divided ~ /Documents/ ~ /Tmp/ ~ /Library/Caches/ ~ /Library/Pr

http://blog.csdn.net/jinnchang/article/details/448281891. Introduction of sandbox mechanismThe sandbox mechanism (sandbox) in IOS is a security system.Each IOS application has a separate file system (storage space) and can only operate on the corresponding file system, which is called a sandbox. All non-code files are

In this article, in the previous iOS development of the network programming-using Nsurlconnection to achieve large file breakpoint continuation download, the use of output stream instead of file handle to achieve large file breakpoint continuation.In the actual development, the input and output flow with less, but it i

path+ (Nullable Instancetype) Filehandleforreadingatpath: (NSString *) path; Get data available in a file (all data) @property (readonly, copy) NSData *availabledata; Set the offset of a file // parameter is a numeric value associated with the length of the file -(voidlonglong) offset; Read from the offset position of the

contains a comma character, which must be enclosed in double quotation marks. (The 6 ) field contains a newline character, which must be enclosed in double quotation marks. (7 ) contains spaces before and after the field, which must be enclosed in double quotation marks. (a b C ==> "a b C" ) (8 ) The double quotation marks in the field, expressed in two double quotation marks. (I said: "abc" .) ==> I said: abc. ) (9 ) if there are double quotes in the field, the field must be enclosed in

When mobile devices such as mobile phones and tablets become the necessities in people's life, how to connect computers with mobile devices easily and realize file sharing becomes an urgent problem. The file transfer feature software is numerous, but the quick completion of this operation on Apple devices is about the new WiFi file transfer feature in the