Add Files Into Xcode Project. You can add one or more files ( such as image files ) into the Xcode. Xcode is an Integrated Development Environment (IDE) developed by Apple and the vast majority of iOS developers rely on it for making iPhone or iPad applications. Using an IDE other than Xcode for iOS development until recently was a rather lonely path. This however tends to change with recent developments in the Apple ecosystem. Swift runs officially on.

There are some features of iOS apps that don’t work from the iOS simulator. Maybe you want to test how your application works with the device camera or send an SMS message from your application. For these examples and more you’ll need to test and debug your app using a real device.

This post will walk through how to run the Xcode simulator on your iPhone or other iOS device and show you how to fix some common errors you’ll see along the way.

How to select your iPhone as the “Simulator” Device

Simulator is in quotes here since this will create an actual app on your phone; it’s no longer a simulation. Open up a project in Xcode and click on the device near the Run ▶ button at the top left of your Xcode screen.

Plug your iPhone into your computer. You can select your device from the top of the list.

Unlock your device and (⌘R) run the application. You’ll see Xcode install the app and then attach the debugger. The application should pop up on your phone.

Troubleshooting Common Errors

The first time I tried to connect my iPhone to Xcode it didn’t work. According to my best friend, Stack Overflow, I’m not the only one who has had issues. Let’s share the fixes to some common errors you might encounter.

“Signing Requires a Development Team”


Xcode requires that you’ve connected a Team to your project in order to run the simulator on a device. You can do this from the “General” tab of your Project Settings. As of Xcode 7 this can be any Apple ID.

Open the Team menu that currently says “None” and select your team. If you don’t have a team, select “Add an Account…” and create one with your Apple ID.

Xcode Ios App Getting Started

Ios

Xcode claims your device is locked when it isn’t

This fun bug has been happening since at least Xcode 6. There are a lot of potential solutions in this Stack Overflow post. Here’s what worked for me:

  1. Unplug your iPhone
  2. Reset Location & Privacy on your iPhone. Found under Settings >> General >> Reset
  3. Plug in your iPhone
  4. Hit Trust when prompted to Trust This Computer

You can learn more about how trusting computers works from Apple’s support.

“iPhone is Busy”

The unsatisfying answer for this one is to just wait.

If you don’t have a sword fighting partner, you can try the following:

  1. Unplug your device
  2. Restart both Xcode and your iPhone
  3. Plug in your device

That worked for me, but a lot of folks had luck with “Solution #3” from this Stack Overflow post.

Activate your Debugging Superpowers

The Jasonette docs FAQ has some more tips if you have other related issues. Now that you’ve got your application running on a device you can make the most of your testing and debugging experience with these tips:

If you have any questions or run into any other issues, feel free to reach out to me on Twitter @kelleyrobinson.

Better apps. Less code.

SwiftUI is an innovative, exceptionally simple way to build user interfaces across all Apple platforms with the power of Swift. Build user interfaces for any Apple device using just one set of tools and APIs. With a declarative Swift syntax that’s easy to read and natural to write, SwiftUI works seamlessly with new Xcode design tools to keep your code and design perfectly in sync. Automatic support for Dynamic Type, Dark Mode, localization, and accessibility means your first line of SwiftUI code is already the most powerful UI code you’ve ever written.

Declarative Syntax

SwiftUI uses a declarative syntax so you can simply state what your user interface should do. For example, you can write that you want a list of items consisting of text fields, then describe alignment, font, and color for each field. Your code is simpler and easier to read than ever before, saving you time and maintenance.

This declarative style even applies to complex concepts like animation. Easily add animation to almost any control and choose a collection of ready-to-use effects with only a few lines of code. At runtime, the system handles all of the steps needed to create a smooth movement, and even deals with interruption to keep your app stable. With animation this easy, you’ll be looking for new ways to make your app come alive.

Design Tools

Xcode includes intuitive design tools that make building interfaces with SwiftUI as easy as dragging and dropping. As you work in the design canvas, everything you edit is completely in sync with the code in the adjoining editor. Code is instantly visible as a preview as you type, and any change you make to that preview immediately appears in your code. Xcode recompiles your changes instantly and inserts them into a running version of your app, visible, and editable at all times.

Xcode Ios Editor Fit Content

Drag and drop. Arrange components within your user interface by simply dragging controls on the canvas. Click to open an inspector to select font, color, alignment, and other design options, and easily re-arrange controls with your cursor. Many of these visual editors are also available within the code editor, so you can use inspectors to discover new modifiers for each control, even if you prefer hand-coding parts of your interface. You can also drag controls from your library and drop them on the design canvas or directly on the code.

Xcode Ios

Dynamic replacement. The Swift compiler and runtime are fully embedded throughout Xcode, so your app is constantly being built and run. The design canvas you see isn’t just an approximation of your user interface — it’s your live app. And Xcode can swap edited code directly in your live app with “dynamic replacement”, a new feature in Swift.

Previews. You can now create one or many previews of any SwiftUI views to get sample data, and configure almost anything your users might see, such as large fonts, localizations, or Dark Mode. Previews can also display your UI in any device and any orientation.

Xcode Ios

Apple Developer Download Xcode

Native on All Apple Platforms

WindowsIos

SwiftUI was built on decades of experience in creating the most innovative and intuitive user interfaces in the world. Everything users love about Apple ecosystems, such as controls and platform-specific experiences, is beautifully presented in your code. SwiftUI is truly native, so your apps directly access the proven technologies of each platform with a small amount of code and an interactive design canvas.

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