ios file explorer

Introduction:• This article mainly about how to use ios: rdbuf () function redirect the standard output stream to a file, that is, redirect the cout output stream.• Two questions will be answered in this article: 1.how to redirect a stream. 2. what is the real face of cout, cin and cerr.Many times, for some special purposes, we will involve the issue of outputting redirection to the console. For example, wh

iOS Development extension-Package audio file Playback Tool classA simple explanation1. A brief description of music playback(1) music plays with a class called Avaudioplayer(2) Common methods of AvaudioplayerLoading music files-(ID) Initwithcontentsofurl: (nsurl *) URL error: (nserror * *) Outerror;-(ID) Initwithdata: (NSData *) Data error: (NSERROR * *) Outerror;Ready to play (buffer, improve the smoothnes

One, the iOS project import JS fileIn general, the JS file added to the project will usually be copied directly to the project (drag), where the JS file may have only one level (a folder contains all the JS files), there may be a lot of folders, the JS file can be directly dragged into the project folder, The project w

phases-Compile Sources-A resource file within the project (such as plist, audio, etc.) cannot be used-Check: Build phases Copy Bundle ResourcesModel what is a model? -objects that are designed to hold data -Generally are pure objects that inherit directly from NSObject -some properties are provided internally to hold the data What is the possibility that a control cannot be seen? -the width or height is actually 0.

1. pch File overview PCH file is a precompiled header file (a generic extension of. PCH) is a project in which the more stable code is pre-compiled and placed in a file (. PCH). These pre-compiled code can be any C/s code--or even an inline function--that is more stable throughout the project, i.e. code that i

In an IOS environment, when you link to a static library (. A file), Xcode appears with a link error:XXX file was built for archive which are not the architecture being linked (i386)This is because the static library is compiled for the IOS environment and cannot be used in an emulator environment, as long as the build

Then IOS uses the nib file (a) to come.There's a way in testnibview.m.-(ID) Initwithcoder: (nscoder *) Adecoder;This method comes from the Nscoding protocol. Nscoding protocol as below, there are two methods.@protocol nscoding-(void) Encodewithcoder: (Nscoder *) acoder;-(ID) Initwithcoder: (Nscoder *) Adecoder; Ns_designated_initializer@endThese two methods are required for nib files to be able to save and

= AdSupport.framework;path = System/Library/Frameworks/AdSupport.framework; sourceTree = SDKROOT; };There is no problem with the file pointer Isa. A rough analysis of the meaning of this string: The 2B82218A1B759BF400BDEFB7 first (I thought it should be the MD5 value of the file, but later found that the value will change.) So it should not be, specifically what is interested in studying again. ISA is a re

) // return the path of the current user's home directory Nsstring * nshomedirectoryforuser (nsstring * User) // return the Home Directory of the user Nsstring * nstemporarydirectory (void) // return the path directory that can be used to create a temporary file 5. Common IOS Directories Documents (nsdocumentdirectory) // directory used to write application-related data files. Files written here in

(Conversion) iOS learning-plist file read/write, iosplist 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

Add PCH FileAfter Xcode6 does not automatically create-prefix.pch files to your project, so we want to use the PCH file, we have to manually import, the following describes how to manually add the PCH file to the project directory.(1) Open the Xcode project that you already exist. Select File > New > File >

last component of the path-(NSString *) stringbydeletinglastpathcomponent//Delete the last component of the path-(NSString *) stringbydeletingpathextension//Remove the extension from the last part of the file-(NSString *) Stringbyexpandingtileinpath//Expand the path to the user home directory (~) or the home directory of the specified user (~user)-(NSString *) Stringbyresolvingsymlinksinpath//try to parse the symbolic link in the path-(NSString *) St

IOS NSFileManager file operations, iosnsfilemanager Reference: http://blog.csdn.net/xyz_lmn/article/details/8968213 thanks to these pioneers Common file operations: // Obtain the sandbox root path NSString * dirHome = NSHomeDirectory (); NSLog (@ "% @", dirHome ); // obtain the Documents directory path NSArray * path = NSSearchPathForDirectoriesInDomains (NSDocum

The PCH file and NSLog real machine are not printed during iOS development.Add a PCH File Now, when creating a new project in Xcode6 and 7, the PCH file is no longer included by default. You need to manually add the PCH file.Under the Supporting Files directory, select File>

]/(1024x768*1024.0)); return[Attributes[nsfilesize] floatvalue]/(1024x768*1024.0); }}7. Delete all files under the path+(void) Cleanfilewithfilepath: (NSString *) path{//NSLog (@ "Erase before file size is%.2fmb", [Fzyfilemanager Sizewithfilepath:path]);Nsfilemanager *filemanager =[Nsfilemanager Defaultmanager]; dispatch_queue_t Globalqueue= Dispatch_get_global_queue (Dispatch_queue_priority_default,0); Dispatch_async (Globalqueue,^{Nsarray*subpaths =

1, Scenekit IntroductionSceneKit (SK) is the Cocos 3D rendering engine Framework for the OS X platform launched by WWDC12. Support for particle effects, physical simulations, scripting events, multi-pass rendering, support for iOS platforms. Scenekit integrates a graphics framework such as the Core Image,core animation and is now integrated into the Spritekit. The Scenekit is built on OpenGL.2. Related class description3, ModellO.hA bridge based on th

1. iOS sandbox mechanism (Sandbox (sandbox) mechanism)iOS 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 applicati

iOS Development Network Chapter-File download (four • Pause and resume)One, Range simple descriptionYou can specify the size of each packet to be downloaded from the network by setting the request header rangeRange Examplebytes=0-499 from 0 to 499 of the first 500 bytesbytes=500-999 from 500 to 999 of the second 500 bytesbytes=500- All bytes since 500 bytesbytes=-500 last 500 bytesbytes=500-599,800-899 Spec

For those engineers who do back-end development, it should be a matter of course to look at the LOG to solve the bug , but in my contact with the mobile application development engineer, many people do not have this consciousness, check the Bug is always again and again try to reproduce, Attempts to debug, especially for bugs that are not easily reproduced, often burn. And the exception mechanism of IOS is more complex,objective-c Language control als