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The Xcode IDE is at the center of the Apple development experience. Tightly integrated with the Cocoa and Cocoa Touch frameworks, Xcode is an incredibly productive environment for building apps for Mac, iPhone, iPad, Apple Watch, and Apple TV.
Developers use Xcode to create apps for iOS, watchOS, tvOS, and macOS. However, Xcode is a complex app and has only ever been available on Mac. While Apple offers the Swift Playgrounds app for. Xcode is Apple’s IDE (Integrated Development Environment) for both Mac and iOS apps. Xcode is the graphical interface you'll use to write iOS apps. Xcode includes the iOS SDK, tools, compilers, and frameworks you need specifically to design, develop, write code, and debug an app for iOS. For native mobile app development on iOS, Apple suggests using the modern Swift programming language. What does Xcode do? Xcode includes everything developers need to create great applications for Mac, iPhone, iPad, Apple TV, and Apple Watch. Xcode provides developers a unified workflow for user interface design, coding, testing, and debugging. The Xcode IDE combined with the Swift programming language make developing apps easy and fun. 4 steps to install your app on a device: When you’re ready to test on a real device, you can simply plug it in via USB. You’ll see a prompt on your phone asking if you want to trust this computer. Xcode will ask if you want to use this device for development. You’ll remotely access the Mac and Xcode through your PC. It’ll be like having the Mac desktop in a window on your Windows Desktop. The really nice thing about this option is that the cost is really low and it’s the fastest option to get up and running. If you decide that app development isn’t for you, you just cancel your plan.
Xcode smoothly takes you from concept, to code, to customers.
Because everything is so well integrated, workflows feel natural. As you compose a new interface, the Assistant editor intuitively presents the related source code in a split window pane. Simply drag the mouse to connect UI controls to the implementation code. Apple LLVM compiler technologies parse your code, keeping every symbol you see in the LLDB debugger consistent with the editor and compiler. As you type, that same engine is constantly at work, finding mistakes and offering Fix-its for your code.
Xcode even communicates with the Apple developer website, so you can enable services such as Game Center or Passbook in your app with a single click. When your app is ready, Xcode will bundle and submit your app to the App Store.
Assistant Editor
The Assistant button splits the Xcode editor in two, with your primary work document on the left and an intelligent Assistant editor pane to the right. The Assistant editor automatically displays files that Xcode determines are most helpful to you based on the work you are performing in the primary editor. For instance, if you are editing MyClass.m in the primary editor, the Assistant will automatically show the counterpart MyClass.h.
Jump Bar
Clicking the Jump Bar, located at the top of every editor pane, you can quickly select what information to view in the Assistant editor. For instance, while editing source code in the primary editor, the Assistant can show the counterpart header, sub-classes or superclasses, or related tests.
Interface Builder
Fully integrated within the Xcode IDE, the Interface Builder design canvas makes it simple to prototype a full user interface without writing any code. Prototype in minutes, then graphically connect your interface to the source within the Xcode editor, laying out windows, buttons, and sliders to create a functioning Mac, iPhone, or iPad user interface. With the Assistant editor, you can work on the graphical design side-by-side with the implementation source code. A simple mouse drag from a UI control to the source pane creates a connection between code and interface, and can even create the code stub for you.Learn more
The Version editor makes it easy to compare two versions of a file, see commit logs, check who made a code change, and even zoom back through the commit timeline. The Version editor splits the pane to show two different versions of the same file. Differences are highlighted as you travel through the timeline separating the editor views. Xcode can also create a local Git repository for new projects, or check out a hosted Subversion or Git repo. The top-level Source Control menu makes it easy to perform branch and merge operations, perfect for distributed teams.
Testing
Test-driven development is a first-class workflow within Xcode. The Test Navigator makes it incredibly easy to jump to any test in your project, execute an individual test, or execute a group of tests. The Assistant editor has new test-specific views that automatically track which tests exercise the code you are presently editing, keeping your tests and code in sync at all times.
Customize
The Xcode environment can be configured to match almost any workflow, including customization features like tabs, behaviors, and snippets.
Tabs.
Create a completely unique view of your project with tabs. Each tab has its own navigator, editor, assistant, and utility area arrangement. You can name tabs for specific tasks, re-arrange them, or tear out the tab to create a stand-alone window.
Behaviors.
Tell Xcode what to do with events such as starting a debug session or encountering an error during a build. Coupled with tabs, you can create a custom work environment for each of your edit, design, build, or debug tasks. Custom behaviors can also completely re-arrange your window with a single key combination.
Snippets.
Dozens of pre-configured code completions, such as defining a new class or method, are included in the snippets library. By customizing or adding snippets, you can insert frequently entered code by typing only a few characters.
Get quick access to any file your project uses with Open Quickly (Command-Shift-O). Xcode immediately offers completions for your search, allowing you to choose one and hit Return to open the file or hit Option-Return to open in the Assistant editor.
Customize the way Xcode builds and runs your app depending on whether you are debugging, profiling, performing code analysis, or running a test suite. For example, the default scheme is configured to build your app in “Debug” mode when running, and the same scheme settings will build for “Release” when performing the Profile or Archive command. There is no need to change project settings as you move from task to task. Xcode configures the schemes for you automatically, or you can use the “Manage Schemes” menu to customize them yourself.
Xcode is the tool developers use to build apps for the Apple ecosystem – MacOS, iOS, and all things Apple.
This guide will walk you through how to successfully install Xcode onto your Mac, from start to finish.
Here are some handy tips to know before you get started:
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- Xcode only runs on a mac. If you are on a PC, sadly you won't be able to use Xcode.
- You'll need a good, stable internet connection. The latest version is around 8 gigabytes in size.
- Be sure to have at least 30 gigabytes of free space on your computer. The latest
.xip
file (v11.4.1 at the time of writing) is ~8 gigabytes zipped. When you unzip it, that's another 17 gigabytes. Then you'll need the command line tool, which is yet another 1.5 gigabytes.
Here's an overview of the steps to install Xcode
- Download Xcode
- Install the command line tool
- Open the new version
- Delete files
Note that I have listed some Terminal commands in the steps below. These commands can be typed into your present working directory. This means that you don't need to navigate to any particular folder.
If you really want to, you can first type
cd
before typing the commands in the below steps. This will return you back to the home folder.Step #1: Download Xcode
There are two ways to do this. For the latest version and a theoretically 'easy' installation, you can use the App Store. Best app to create photo books on mac. I don't recommend this option.
I prefer to use the developer site. This comes with the bonus option of being able to download any version you'd like.
Option #1: Download via the App Store for the latest version (not my preferred option)
In theory, this should be a seamless and pain-free process. But if the installation fails for any reason on the last step, it is very hard to troubleshoot.
There are a few reasons for failure, and no easy way to know which is the underlying cause. If you do encounter a failure, you will need to re-download the entire file again each time you try to fix the failure. As the latest version is 8 gigabytes, I didn't much enjoy this approach.
But if you're feeling brave, here are the steps:
- Open the App Store on your mac
- Sign in
- Search for Xcode
- Click install or update
Option 2: Download via the Developer site for a specific version (my preferred option)
- Head to the 'more' section of the Apple developer website
- Sign in with your iTunes account id
- Type in the version that you'd like, and download the
Xcode_x_x_x.xip
file. Keep in mind that Xcode 11.4.1 is 8 gigabytes, so this will take awhile depending on your internet connection. - Once the file is downloaded, click on
.xip
to extract it. Your laptop will extract it to the same folder you downloaded it to. This extraction process is automatic. You don't need to do anything more after you click on the.xip
file. This step will take a few minutes. - [Optional] Once extracted, rename the application to “Xcode11.x.x” if you are using multiple versions.
- Drag application to the Applications folder
- [Optional] Set the new Xcode version as the default. Open Terminal and type
sudo xcode-select -switch /Applications/Xcodex.x.x.app
. Replacex.x.x
with the version number. For example:Xcode11.4.1.app
. You will need to enter in your computer admin password. I'm pretty sure this will update the default Xcode version for all users on your computer, so best to check with other users first
Step #2: Install the command line tool (CLT)
If you have multiple users on your computer, you will need to update the CLT for each user.
Download
.dmg
To update the CLT, go to app developer website and download the command line tool
.dmg
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If you have never installed Xcode before, you may be able to update with your Terminal by typing in
xcode-select --install
instead of visiting the developer website.But if you have an existing version of Xcode installed on your machine, you'll probably see this error: https://newys259.weebly.com/blog/mac-calendar-app-crashing.
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This means you'll need to go to the developer website instead.
Installing the CLT
When the
.dmg
has finished downloaded, double click the file to open it. This will open a little window that looks like this:Double click the box and follow the prompts to install the CLT. It will take a few minutes to complete.
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It may ask you at the end of the installation whether you want to move this to the trash bin. When it does this, it's talking about moving the
.dmg
file to the trash bin. Since you should no longer need this file. I always say yes to this.Step #3: Open Xcode
Open the Applications folder and open the new version of Xcode. If you renamed Xcode, make sure you open the correct application
Xcode may prompt you to install additional components. Click install. This will take a few minutes.
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While it's installing, check that your default Xcode version is the one you just downloaded:
- Open Terminal
- Type
brew config
- You should see “CLT” and “Xcode” versions, as well as everything else. This should reflect the version that you have just downloaded. In my case, I downloaded Xcode 11.4.1.
Once the components are installed, Xcode will launch. You should be able to pick up your old projects and continue where you left off seamlessly*.
*Note that if you use any proxy tools, such as Charles, you will need to re-install those certificates in your simulator again.
If you encounter any errors while trying to build or run a project, check which device you are trying to launch. The new version may not remember the device you were using before. If so, click on the device and choose 'Add additional simulators' from the drop down menu to add the device you want.
Step #4. Delete the files
If you don't need the older versions of Xcode on your computer, you can uninstall them and get some hard drive space back.
You can also delete the
.xip
file of the version you just downloaded, as well as the CLT.dmg
file.That's everything. I hope this has helped you successfully install Xcode. Have fun with it!