iOS Judging file types2013-11-06 13:14 929 People read comments (0) favorite reports Recently doing something that has download zip, just the server sent over is binary, need to according to binary to determine what type of file, thereby saving operations. At first it was not understood, and it was later discovered that the first 2 bits of the ASCII code could
Network Programming for iOS development-3. NSURLSessionDataTask implements file download (offline resumable download) and nsurlsession resumable download
NSURLSessionDownloadTask is used to download large files without the need for offline resumable data transfer.
For more information about NSURLSessionDownloadTask, read the previous article: Network Programming for iOS
In the previous blog has been said to upload the project, but sometimes, we need to package into an IPA package to the other mobile phone run (but only if the phone's udid must be bound to the corresponding developer account, that is, the certificate should be from the same developer account to apply for it)Suppose you have now completed the configuration of the certificate, Bundle Identifier and profile (if not please refer to this blog for the first 4 steps of http://www.cnblogs.com/lidongxu/p
After creating a project, we will see a "project name-info. plist file, which is an important file for some runtime configuration of the project and cannot be deleted.
If the file name of the project you downloaded online is info. plist, congratulations, this project is too old. It was generated by xcode earlier than sdk2.0, but it does not matter and does not af
Reprint please indicate source: http://www.cnblogs.com/gexun/p/3705207.html, thank you.These days have been doing a knowledge question and answer project, because the preliminary project topic is relatively small, so the title is written in the local plist file, directly read it.The company PM worry about the problem leaked, so we have to give plist file encryption, this can put me disabled, because I have
iOS sandbox mechanismiOS applications can only read files in the file system created for the change, not anywhere else, this area is sandboxed, so all of the non code files are saved here, such as images, icons, sounds, images, attribute lists, text files, and so on.
Each application has its own storage space
Applications cannot go over their walls to access the contents of other storage space
Reprint please indicate source: http://www.cnblogs.com/gexun/p/3705207.html, thank you.These days have been doing a knowledge question and answer project, because the preliminary project topic is relatively small, so the title is written in the local plist file, directly read it.The company PM worry about the problem leaked, so we have to give plist file encryption, this can put me disabled, because I have
Network Programming for iOS development-using NSURLConnection for file upload and iosnsurlconnection
Using NSURLConnection to upload files is cumbersome.
This document does not introduce the use of third-party frameworks to upload files.
Body:
Here we first provide the interface for encoding testing: http: // 120.25.226.186: 32812 click in and you will find the following:
It is best to use the Google
The first is the source file that needs to be compiled into. Ahello.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 World%s\n", name);} 1. Create a library Project with Xcode 2, to configure Remove the original. h and. M:Add the above. C and. h to Project:Configuration item minimum configuration is iOS6.0
The first is the source file that needs to be compiled into. Ahello.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 World%s\n", name);} 1. Create a library Project with Xcode 2, to configure Remove the original. h and. M:Add the above. C and. H to the project:Configuration item minimum configuration is iOS
Get the iOS album picture file size,A lot of people, think of is to take the location of the file picture, and then through the NSData to get the image size, as everyone knows, so that the image size is not accurate.The correct method should be implemented in the agentAlassetslibrary* allibrary = [[alassetslibrary alloc] init]; [Allibrary assetforurl:[info ob
Reveal Analysis iOS interface, need to get app Softwareversionbundleid upload to iphone,and IOS8 itunesmetadata.plist to downloads inside find very laborious, so wrote a auxiliary script, all read out at onceThe main use of Python, the implementation of Traverse folder to get a list of files, and then read the field, output into a file Libreveal.plist formatPython reads the plist
Recently, a project in the request data is slow, the interface is very unfriendly, and then want to store the last request data, when the interface to display the last data, and then when the data request is completed and then the data refreshI am not familiar with the data operation, the new person can refer. On the Internet to see the iOS data localization method, I chose the Nsuserdefaults method and file
During iOS development, plist files are often used. What is a plist file? Its full name is Property List, which is an attribute List file used to store serialized objects. The property list file extension is. PlistIs usually called a plist file. The
iOS with the system-provided API can be implemented to achieve file upload and download, respectively, there are two ways. nsurlconnection and nsurlsession.Where Nsurlconnection is a long-used way, nsurlsession is a new way out.First, Post mode uploadThe post submission information is used by default:*Content-type:application/x-www-form-urlencoded.*when entering Chinese,PostAutomatic escape mode(Automatic i
Next, iOS sandbox mechanism and file operations (2 ),
Let's see how NSFileManager is used. Including creating files, directories, deleting, and traversing directories.
1. Create a directory in Documents
Create a directory named test, first find the directory of Documents,
NSArray * paths = NSSearchPathForDirectoriesInDomains (NSDocumentDirectory, NSUserDomainMask, YES); NSString * documentsDirectory = [p
During iOS development, plist files are often used. What is a plist file? Its full name is Property List, which is an attribute List file used to store serialized objects. The property list file extension is. plist, which is usually called a plist file. The
During IOS development, plist files are often used. What is a plist file? Its full name is Property List, which is an attribute List file used to store serialized objects. The property list file extension is. plist, which is usually called a plist file. The
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