Eventually, you will have to update to Xcode 11 in order to build apps that use the latest versions of iOS. The easiest way to download Xcode for free is through the Mac App Store. Click the link to go to the listing. Just visit the Apple Developer page for Xcode. If you download it from the Mac App Store, then updating Xcode becomes really easy since you can just download and install the update through the store.
You can download previous versions of Xcode as well as betas versions. Check out my guide for options! I highly recommend you use Xcode if at all possible. The reason is that when Apple announces new changes like they did this year with SwiftUI , they build support for those new technologies directly into Xcode.
Having said that, if you still want to check out some alternatives to building iOS apps with Xcode, check out the following:. I have an awesome cheatsheet that I created for referencing all the keyboard shortcuts I use! You can download the cheatsheet here.
Before we dive in, keep this Apple Documentation for Xcode handy. If your interface looks different, make sure you have Xcode 11 and not an earlier version.
Keep in mind that you can adjust the size of each of those panes by hovering your cursor over the boundaries of each area and dragging. Then you can use the View buttons to hide those 2 panes to give your editor more visible space. In this pane, there are a bunch of different navigators that you can switch between using the Navigator Selector Tab Bar see screenshot below.
Since there are so many eight! Within the Project Navigator, you can also create Groups to organize your files in. Think of them like folders. You can create a new Group and then drag your files into them to organize your project a little bit. You can also right click on the Project Navigator and create new files or add existing files to your project.
Or you can drag folders or files from your computer directly onto the Project Navigator and will popup a dialog asking how you want to add the files.
If you click on a file in the Project Navigator, it will display the contents of that file in the Editor Area so that you can edit that file.
Hitting these keys is going to switch to the Search Navigator to perform a project-wide search. This really helps when you need to make a change in multiple places in a project. It will also show yellow Warnings in the issue navigator. This is where all the coding, configuration and user interface building happens.
If you want to show line numbers in the gutter to the left of the editor, you can enable line numbers in the Xcode preferences. The Dark theme can also be enabled in the preferences. There are these little back and forward arrows in the upper left corner of the editor area. These guys are actually pretty useful. They act like the back and forward buttons on your browser and they let you navigate to previously viewed files. Another way to quickly get to the file you need is to use the Jump Bar.
Just hit Command-F to bring up a search popup in the upper right corner that will look for whatever you type in within the current file. This is also a great way to jump to various areas of your file.
You can also use this popup to do replacements within your file. A breakpoint is an Xcode debugging feature that lets you pause the execution of code at a specific line of code. The breakpoint gutter where the line numbers are is where you can click to set breakpoints at certain lines of code. To turn off a breakpoint, just click the blue indicator again and it will dim out. If you want to completely remove the breakpoint, you can click and drag the blue indicator off of the breakpoint gutter.
The root node of the project navigator is your Xcode project file indicated by the blue icon. If you click that, the project properties will open in the editor area.
In this screen, you can configure things like:. Storyboards are interfaces built with visual drag and drop in the Editor Area using Interface Builder. SwiftUI was released in late September as a new way to build user interfaces by writing code.
Xcode 11 has a special Preview Canvas pane that shows your user interface change in real time as you write the code to modify your user interface. Most of my tutorials are based on Storyboards because it was the easiest way for beginners to grasp. If you chose Storyboards as your UI building option when you created the Xcode project, then your project will have a file called Main.
These elements are things like buttons, sliders, labels and textfields. You can drag and drop them onto the view but in order to size and position them, you need to use the Auto Layout system. For example, you might add a constraint saying that an element should be 20pt below the element above it. I have an introduction video to the Xcode Auto Layout system here:. With enough constraints in place, the Auto Layout system has enough information to lay out the user interface.
However, having too many constraints may result in conflicts where two or more constraints have opposing demands. The visibility of the Document Outline can also be to toggled with this small button in the lower left corner of Interface Builder:. It looks like a two pane view. Each pane also has independent jump bars, so you can also use that to change what file each pane is displaying. For more practice using Storyboards, check out my beginner series on YouTube.
Note that it needs at least macOS The File Inspector is the first tab in the Utility Area and it shows details about the current highlighted file in the File Navigator.
Information such as the physical location of where the file is on your hard drive and other file properties:. The Quick Help Inspector shows you documentation about the method, class or keyword that your typing cursor is currently on. Suffice to say, this inspector will draw a blank unless your typing cursor is in the code editor over a valid method, class or keyword. The left-most button is the run button.
This will build and run your application and launch your app in the iOS Simulator. The button beside it will stop the execution of your application and return you to Xcode. Profile to measure various aspects of your application such as performance, memory usage and more. The dropdown beside the Stop button indicates which build target you want to run your can run an Apple Watch target too and you can also choose if you want to run it under the iPhone or iPad simulators or different version if you have them installed.
The status bar will show you what Xcode is currently doing. The debug area will show you console output and the state of various variables when you run your application. I have a detailed guide on how to deploy your app on an iOS device. An Xcode Playground is a light weight editor for you to try out some code. This brings up a separate window where you can do various activities related to your app in the App Store.
An archive is what Xcode calls a build of your app. Selecting one of your archives will give you an option to do various things with it, including sending it to the App Store.
These three sections in the Organizer will show you various metrics collected from your app being used by real users. This information is really valuable to use for improving your app in regards to making it more robust less crashing and more efficient using less resources. If this guide helped you, please let me know by leaving a quick comment below. Talk soon! Oh man did you hear the announcement from Apple? New Airpod Pro!
Great explanation, thanks for sharing such informative and valuable blog post so keep posting. Thanks for your all your efforts with keeping us up to date with the latest!
I really appreciate it! I have recently updated my Xcode to 11, and I am also learning Xcode so please bear with me. Trying to follow along on your youtube channel. Just created the project and cannot located main. I see AppDelegate. Hello, i think that i saw you visited my weblog so i got here to go back the choose?. React Native. More Languages. Free Trial Support. Step 1 - Import the module.
Step 2 - Implement the viewer. Stay updated Get monthly product releases directly to your inbox. Related articles. Learn More. Documentation Support Community Webinars. LoneWolf LoneWolf 1 1 gold badge 3 3 silver badges 10 10 bronze badges. Add a comment. Active Oldest Votes.
Improve this answer. How do you do things like open a PDF document from the Open menu or via a button? At the moment, I just have it hard-coded to open a specific PDF document. I want to be able to choose from my files which PDf document to open. Cool, thanks for that. How do I implement the multi-document functionality?
I'm not sure how to go about doing this? Sample app supports this functionality by default. No extra efforts required for this. Sign up or log in Sign up using Google.
0コメント