ios file manager

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

After the key has been matched. We typically make a backup of the certificate, which is a P12 file.This p12 file is very useful, it contains not only the information of the CER, but also the private key information, namely: P12 backup file = CER file + private key; So with this p12 there is no need to worry about certificates being lost.3,mobileprovition fileIf t

[IOS] File Upload note, ios note The APIS provided by the system can be used in iOS to upload and download files in two ways.NSURLConnectionAndNSURLSession. NSURLConnection is a method that has been in use for a long time, And NSURLSession is a new method. I. POST upload By default, the POST method uses: * Content-Typ

Compile the. a library file used by iOS, and compile the ios. a library First, the source file to be compiled into. Hello. h: #ifndef __INCLUDE_HELLO_H__#define __INCLUDE_HELLO_H__void hello(const char *name);#endif // end __INCLUDE_HELLO_H__ Hello. c #include "stdio.h"void hello(const char *name){ printf("Hello

that, enter the following address: 0x00352aee (line 4th in the crash file: 4 appName **0x00352aee** 0x4000 + 3468014) results can be obtained: -[uiscrollview (Uitouch) Touchesended:withevent:] (inappName) (uiscrollview+uitouch.h:26) This will find out which module of the application is causing the crash problem.SummaryThis article analyzes the 3 ways to conform to the crash file

[IOS] File Download Note, ios note File downloads are dividedNSURLConnectionAndNSURLSessionTwo types, the former has a long history of hate. It is relatively difficult to use. The latter is new and some additional features are added. 1. Download NSURLConnection TIPS: 1. When NSURLConnection is downloaded and NSData is

the foreground will execute the method- (void)applicationDidBecomeActive:(UIApplication *)application { NSLog(@"*****%s",__func__);}Applicationwillterminate: This method is executed when the exit is imminent- (void)applicationWillTerminate:(UIApplication *)application{ NSLog(@"*****%s",__func__);}iOS program file execution orderin the plist file1.bundle Display name in the screen of the app's

IOS data persistence file read/write preference settings, ios data read/write preferences Many iOS apps support preference settings, such as saving user names, passwords, and font sizes. iOS provides a standard solution to add preference settings to apps. Each application ha

Network Programming for IOS development-File compression and decompression, and ios Network ProgrammingPreface: The QQ emoticon package uses decompression. the formats of the many emoticon files downloaded from the Internet are not image files, but compressed emoticon packages from multiple images. The following describes how to use the compression and decompres

iOS learning iOS sandbox (sandbox) mechanism and file operationsiOS sandbox (sandbox) mechanism and file operation (one) let's see how to get the application sandbox directory. The directory that includes the sandbox for the real machine.1. Get the program's home directory [CPP] view plain copy nsstring *homedirectory

A group can contain multiple users, and one user can belong to more than one group.Each file in iOS has a master user and a master group. Each file has a list of permissions.3bit is used in iOS to represent the use of files, from high to Low, respectively, R (read), W (write), and X (execute) permissions.There are thre

[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

[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

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

Category: Apple IPhone2012-06-28 11:31 4664 people read reviews (0) favorite reports iOS Language Manager Test CC Language Implementation#include "Sys/stat.h"-(Long Long) Filesizeatpath: (nsstring*) filepath{struct STAT st;if (Lstat ([FilePath cstringusingencoding:nsutf8stringencoding], st) = = 0) {return st.st_size;}return 0;}Objective-c Language Implementation-(Long Long) Filesizeatpath: (nsstring*) f