xcode examples

is this:Expression The corresponding examples are as follows:(LLDB) Expression-o-SelfExpression Expression is the most important command in LLDB. He can achieve 2 very important functions.A. Execute an expression.When the program is paused, the page properties can be modified directly through the LLDB debugger without having to rerun the programChange color(lldb) expression--Self.view.backgroundColor = [Uicolor Redcolor]Refresh Interface(lldb) expres

In iOS development, most of the time you need to debug in debug mode, and here is the knowledge of debug What is the difference between 1,debug and release versions? As we all know, we have iOS development, in the Xcode debugger, divided into two ways, debug and release, in Target's setting believe you should see a lot of options are divided into debug and release, to facilitate our separate set, Meet the different requirements for debugging and pub

Xcode3.2.5 NoCertificateDevelopmentDebuggingThe tutorial is the content to be introduced in this article. Here is a weak reminder,XCode4.0 it has not been tested yet and is for reference only. Let's take a look at the details. XcodeProceedCrackingThen, the jailbreak iPhone or iPad can be connected without officialCertificateDevelopmentDebuggingNow! Currently, the latest iOS 4.2 SDK/iOS 4.2.1 SDKXcode3.2.5 applies the same way! Of course, for iOS 3.2.2/iOS 4.1 SDKXcode3.1.2 compatibility is also

Xcode plugin greatly enriched the function of Xcode, and with Alcatraz, plug-in management is very easy, such as I this Vim party completely inseparable from Xvim. But there is a very annoying problem: once you upgrade Xcode, the plugin fails!Before Xcode upgrade to 6.2 encountered the problem of plug-in failure, Googl

Transferred from: Http://www.cnblogs.com/daiweilai/p/4421340.html#biyoujiDirectoryObjectiveForced chickenThe enemy BaizhanbudaiKnife Cut BugNormal operationGlobal Breakpoint (Globals breakpoint)Conditional breakpoint (condational breakpoints)The Art of printingNSLogTurn on Zombie object (enable Nszombie Objects)Attack on the Yards farmConsole (LLDB command)Profile (instruments)Xcode View DebuggingConclusionObjectiveRecently, Bo Master near the graduat

Xcode plugin greatly enriched the function of Xcode, and with Alcatraz, plug-in management is very easy, such as I this Vim party completely inseparable from Xvim. But there is a very annoying problem: once you upgrade Xcode, the plugin fails!Before Xcode upgrade to 6.2 encountered the problem of plug-in failure, Googl

Reprint: Http://joeshang.github.io/2015/04/10/fix-xcode-upgrade-plugin-invalid/Xcode plugin greatly enriched the function of Xcode, and with Alcatraz, plug-in management is very easy, such as I this Vim party completely inseparable from Xvim. But there is a very annoying problem: once you upgrade Xcode, the plugin fail

* One, the Xcode plugin download: *Vvdocumenter Download: Https://github.com/onevcat/VVDocumenter-XcodeXcode Common plugin Download: http://pan.baidu.com/s/1sjLnUFj* Second, Vvdocumenter installation method: *The best-of-the-installing is by Alcatraz. Install Alcatraz followed by the instruction, restart your Xcode and press?? 9. You can find Vvdocumenter-xcode i

1. What is extended attributes? Many ORM frameworks support such operations. Take the table in section 1 as an example, The Subject objects such as TeacherID are usually used in this way. Subject subject = Subject.FindByID(1); string TeacherName = subject.Teacher.Name; In this case, it is directly associated with the Teacher object, instead of operating TeacherID. How is this done? Will XCode be automatically completed? F

Xcode is a lightweight ORM Component (Object-to-relational database ing) that provides object-oriented database operations to address more than 90% of database operation scenarios. As the most important component of X Series, xcode adheres to the simple and practical features and strives to solve the most common problems with the simplest practices. The biggest disadvantage of

control, and the level of the current view with a three-dimensional effect. Let's take a look at how to debug the view.Detailed IntroductionFor the sake of simplicity, here I use SB to quickly build a simple UI such as:Note: The Debugviewhierarchy feature is used here because only in the case of the emulatorThen, click the Debugviewhierarchy button in the Debug window,You can see the 3D of the entire interface, such asYou can switch between different 3D angles by dragging the mouse.In the debug

The hands of the base did not endure the update to the Mac Os Yosemite, so the problem came ....Before the good project operation error, the project storyboard file cannot be opened.The error message is as follows:The document "Main.storyboard" could not being opened. The operation couldn ' t be completed. (Com.apple.InterfaceBuilder error-1.)Reason:After this update do not know why,storyboard inside can not refer to the picture below the folder. For example: Assets/xxx.png.Workaround:Temporaril

This is a security policy update brought by iOS, MacOS Sierra, WatchOS 3, and TvOS 10. Code signing no longer allows any file in the application package to have extended properties that contain resource forks or lookup information.You can view those files that cause these problems by following the command line:$ XATTR-LR There are roughly three solutions to this problem:1. Remove all extended attributes from the app's resource fileXATTR-CR 2. Find files with finder information, directed deletels

HelpHere are some useful shortcut keys (Transferred from Http://www.cppblog.com/brucejini/archive/2010/12/24/137367.html)Command + Shift + E: Extended EditorCommand + [: Move code block leftCommand +]: Move code block rightTab: Accept Code hintsESC: Show Code hints menuCtrl +. (period): Loop through code hintsShift + Ctrl +. (period): Reverse looping through code hintsCtrl +/: Move to the next placeholder in the code hintCommand + Ctrl + S: Create snapshotCtrl + F: Move forward cursorCtrl + B:

# define can be used to define constants, which can result in a change to all of them.In fact, it is more recommended to use Const or enum to define constantsThe initial purpose of the const rollout is to replace the precompiled directive, eliminate its drawbacks, and inherit its advantagesConst can save space and avoid unnecessary memory allocations. Example:#define PI1 3.14159//Macro ConstantsConst double PI2 = 3.14159; Pi is not placed in RAM at this timeDouble A = PI2; Allocate memory for P

Simply say the last time I met a problem in the mixed, it is their own summary, but also hope to help to play home.When OC and C + + are mixed in the project, especially when calling each other in a file of two languages, be sure not to forget to change the compiler's compile Sources as option to objective C + +, because the default selection is According to file type. Otherwise it will error, and the report of the wrong, when the head is big. Summary of issues in OC and C + + mixed compilation

This error usually occurs because the bundle identifier is not set correctly. 1. If the project is directly downloaded from the Internet, first check the project targets under the bundle identifier has been set. If the SDK is a demo project, Bundle identifier is usually blank and needs to be filled in manually. Then select the developer account in the signing team below. At the same time, in the targets under the corresponding test project must do the same setting. 2.

Screenshot tip: Mac with screenshots shortcut key SHIFT + Command + 3, press this key combination, the picture automatically saved to the desktop. Select the Xcode Preferences menu Select the "Locations" option after opening The Finder after opening Enter the "Deriveddata" directory to find your project, executable file in "build/products" directory, such as my path The sandbox directory of the iphone emulator, you can get the path to the

Website Installation page http://phonegap.com/install/one-line installation The code is as follows Copy Code $ sudo npm install-g phonegap It's a little bit of a trick, and by the experience of the previous configuration environment, I'm not too sure, install it, run The code is as follows Copy Code $ phonegap Every programmer starts with "Hello World" and continues. The code is as follows Copy Code

Split screen, click on a file, and then click Option, you can split the screen Hold down the CTRL key and select the appropriate view to drag and drop into the interface of the corresponding file. A list of files on the left, showing Command+0, Command+n is a new file Command+shift+n is a new project Option+command-> creates a new group, which is actually similar to the Android package Xcode does not have a direct copy line in Android Studio, bu