This document is intended to guide GeneXus developers in the process of publishing (for the first time or update) their iOS applications to the Apple Store.
- GeneXus 15 Upgrade 8 or higher must be used to deploy applications to Apple Store. Ref.: "Starting July 2018, all new iOS apps and updates submitted to the App Store must be built with the iOS 11 SDK. All new iOS apps and updates for iPhone, including universal apps, must support the Super Retina display of iPhone X." https://developer.apple.com/ios/submit/, iOS Requirements
- You need a Mac computer to be able to compile and publish an iOS application.
- Get (if not already have one) an Apple iOS Developer account. See Apple Developer site for details.
- Get (if not already have one) a Distribution certificate for the above Apple iOS Developer account in the Mac used for compilation.
During the publication process, you will need to interact both with Apple Developer and iTunes Connect sites and also with the XCode project (generated by GeneXus) in the Mac.
It's highly important to test the application before uploading to the store. The validation process of Apple takes a while, if you need a second emergency update, consider that the end users do not have the application fixed instantaneously.
Tip: Development Team ID property is required for uploading the application to the App Store. You may set it during the test process.
You will need (not counting optional).
- Format: JPEG, JPG, TIF, TIFF or PNG.
- Resolutions (at least one for iPhone and one for iPad):
+ iPhone: 960x640, 960x600, 640x960 or 640x920 pixels.
+ iPad : 1024x768, 1024x748, 768x1024, 768x1004, 2048x1536, 2048x1496, 1536x2048 or 1536x2008 pixels.
- Considerations: At least 72 DPI and in the RBG color space.
- Format: JPEG, JPG, TIF, TIFF or PNG.
- Resolutions: 512 x 512 or 1024 x 1024 pixels.
- Considerations: at least 72 DPI, in the RGB color space, and it cannot be scaled up.
For detailed information, refer to App Store icon, app preview, and screenshots overview
This step is required once for each user account on Mac computer used for publishing, not for every application you want to publish.
Download the Distribution certificate from Certificates, Identifiers & Profiles (Apple Developer site) by going to Provisioning Profiles > Distribution. Once downloaded, double-click the .cer file in order to add the certificate to the Mac Keychain -this must be done with the user configured in the iOS Generator, for the certificate to be added to the login of that user.
Note: To access the iOS Provisioning Portal menu you must be logged in (to do that go to iOS Dev Center > Login).
Go to Apple Developer site > Identifiers > App IDs and create an App ID for your application (New App ID button, the "+" symbol on the right-upper corner).
Provide the following information:
- Bundle Seed ID (or App ID Prefix)
Select your Team ID.
- Bundle Identifier (or App ID Suffix)
- (Optional) Select your App Services
e.g. Push Notifications if the app uses it.
Click on Continue button.
In the next screen, check if the information is correct and click on Register button, and then Done.
Go to Provisioning Profiles > Distribution > New Profile (the "+" symbol on the right-upper corner). You'll need to complete a four-step wizard with the following information.
- Type of distribution profile
In Distribution section, select 'App Store', and click on Continue.
- App ID
Select the App ID created in step 4, and click on Continue.
- Signing certificate
Select your iOS Distribution certificate, and click on Continue.
- Profile name
It can be any. Also offers a summarize of the previous steps. Finally, click on Continue.
In this step, you can download the provisioning file by clicking on Download button, and skip the step 6.
Go to Provisioning Profiles > Distribution.
Select the Profile Name created in 5 and click on Download button, and then double-click the .mobileprovision file.
Open the application knowledge base with GeneXus, and configure the following properties:
- Smart Devices generator properties > iOS Specific
- Main object properties > Apple
Build the main object. To do it, open the generated project in your Mac, located by default in Documents/Projects/<gx_main_object_name>/<gx_main_object_name> (double-click on the .xcodeproj file, or .xcworkspace if exists).
- Go to Product > Archive.
Build target must be set to Generic iOS Device in order to option Archive be enabled.
A build will be performed to generate the archive file. After that, a message Build Succeded should be displayed, and the created archive should be showed in Organizer.
- Go to View > Navigators > Show Report Navigators
Check that no signing and validation warnings appear at the end of the log.
Verify that the application was signed using the Distribution certificate.
Note: If you get a warning because UserControls folder doesn´t exist in the same location as the XCode project create it and go to Product and Archive again.
At this point, you are ready to upload the application to App Store. Go to iTunes Connect site, log in using your Developer account, and go to Manage Your Applications.
- If you are creating a new application
Click on Add button ("+" symbol on the left-upper corner) and then New App option. This action will access you a wizard to create a new application.
- If you are updating an existing application
Click on your application icon. The detail information will be displayed. Click Add Version or Platform button, and select iOS.
The information needed is:
- Version number
Must be the same as main object property iOS Version Name (see step 7 above).
- What's New in this Version
Details on what had changed in the new version.
Go back to the Xcode project on your Mac.
- Select Organizer on Xcode project (go to Window > Organizer).
- Select the archive file generated in step 7
- Click the Validate button. It takes several minutes and no feedback is given in the meantime (it may appear that the application is not responding)
To successfully perform the validation process, the application state must be 'Prepare for submission' in iTunes Connect site.
- Log in with your Developer account.
- Select the application version created in previous steps
In the Application's combo-box select the version. The Identity combo-box should display a Distribution profile.
- Click Next button.
A success message must be displayed. Otherwise, an error list shows up.
- Click the Submit button in Organizer.
Be sure the validation was successful. Select your application and upload the binaries.
At this time your new or updated application was submitted to the Apple Store for approval (in 'Waiting for Review' state).
There is little you can do but wait for news from Apple.
Prototyping and Executing