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Development Ideas. Start by opening XCode, and creating a new Xcode project. Use a Single View App as a template. Click Next and save the project in the location of your choice. Part 1: Configurations The first part that needs to be taken care of is the creation of different configurations in XCode for each of the environments we want to support.
Open the project settings by selecting the project blueprint from the Project Navigator, and then click the blueprint under the Project section. Using the environments we defined in the intro, we will create these configurations: Debug — 1 Debug configuration Dev — 1 Debug configuration, 1 Release configuration QA — 1 Debug configuration, 1 Release configuration Stable — 1 Debug configuration, 1 Release configuration The reason for creating 1 Debug and 1 Release configuration is: Debug — Used for running the environment locally for testing by the development team if needed.
Release — This is the configuration that will archive the application to be built locally or by CI. Part 2: Schemes The configurations that we just created now need to be associated with an XCode scheme. Open the scheme manager. Part 3: Build Settings The project can easily change environments but we need to actually set up which aspects of the application will change for each. Open the project settings by selecting the project blueprint from the Project Navigator Select the Target to configure under the Targets section.
Select the Build Settings Tab. Some other settings to look at are: Info. Code signing Change to provisioning profile associated with a build environment. This can be more easily done in the General Tab of the Target settings. The possibilities here are endless. Part 4: Active Compilation Conditions Sometimes the application will need to tailor the source code based on the current environment that is being built. Open the Build Setting for the application target See Part 3, Steps 1 — 3 Scroll down or search for Active Compilation Conditions Expand the property to see the values for each environment configuration.
You can make things easier on yourself with xcconfig files that assign each configuration a distinct name and app icon. On iOS, perhaps the most common approach to managing these environments is to use conditional compilation statements with build settings like DEBUG.
An alternative approach takes these environment-specific values and puts them where they belong — into xcconfig files. Build settings defined by the Xcode project file, xcconfig files, and environment variables, are only available at build time.
When you run the compiled app, none of that surrounding context is available. And thank goodness for that! Xcode will use their values automatically in build settings. You can use your configuration variables in project settings, info.
If you assign config variables to preprocessor macros, you can also shape your code blocks that can change accordingly states of your application. A sample TST xcconfig file is as follows. While your project is getting bigger and bigger, using config files is more manageable and more clear to see your configuration parameters.
You are commenting using your WordPress. You are commenting using your Google account. You are commenting using your Twitter account. You are commenting using your Facebook account. All of these builds are not exactly the same, each of which usually has some specialties and a slightly different configuration.
For example, if the app needs to connect to a backend, it is very likely the app is connected to the test environment during QA tests. The build is probably configured with a test URL. On top of that, you may not be showing the same level of information when an error occurs in the application for all the builds.
How can you efficiently manage all these build variants with the same code base in Xcode? This is what I want to discuss in this tutorial and show you how to create multiple configurations with the help of Xcode. There are different approaches that can achieve it. One is to create different targets, each one of which employs different Info. Each time a target is selected, a different Info. It could also be achieved by using Bundle Identifiers.
Defining different preprocessor macros will control the conditional compilation of various chunks of code. Eugene Trapeznikov has already covered this approach in this excellent tutorial. The alternative approach is to put your build configuration settings into. Then you can build a different version of an app by simply changing the scheme.
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