[image_picker_ios] Add photo to simulator Photos library during test

[jmagman]

The iOS 26 simulator Photos library does not pre-populate example images.
When the example app launches, add a test photo to the library. Only add a photo on first launch of the example app, enforced for a NSUserDefault.

Fixes flutter/flutter#173327

Pre-Review Checklist

• I read the Contributor Guide and followed the process outlined there for submitting PRs.
• I read the Tree Hygiene page, which explains my responsibilities.
• I read and followed the relevant style guides and ran the auto-formatter.
• I signed the CLA.
• The title of the PR starts with the name of the package surrounded by square brackets, e.g. [shared_preferences]
• I linked to at least one issue that this PR fixes in the description above.
• I updated pubspec.yaml with an appropriate new version according to the pub versioning philosophy, or I have commented below to indicate which version change exemption this PR falls under¹.
• I updated CHANGELOG.md to add a description of the change, following repository CHANGELOG style, or I have commented below to indicate which CHANGELOG exemption this PR falls under¹.
• I updated/added any relevant documentation (doc comments with ///).
• I added new tests to check the change I am making, or I have commented below to indicate which test exemption this PR falls under¹.
• All existing and new tests are passing.

If you need help, consider asking for advice on the #hackers-new channel on Discord.

Note: The Flutter team is currently trialing the use of Gemini Code Assist for GitHub. Comments from the gemini-code-assist bot should not be taken as authoritative feedback from the Flutter team. If you find its comments useful you can update your code accordingly, but if you are unsure or disagree with the feedback, please feel free to wait for a Flutter team member's review for guidance on which automated comments should be addressed.

Footnotes

1. Regular contributors who have demonstrated familiarity with the repository guidelines only need to comment if the PR is not auto-exempted by repo tooling. ↩ ↩² ↩³

[gemini-code-assist]

Code Review

This pull request adds a test photo to the iOS simulator's Photos library on app launch to ensure UI tests can run on newer iOS versions where the library is empty. I've provided feedback on AppDelegate.m to improve robustness by checking authorization status and to fix code formatting. Additionally, I've pointed out a small typo in the CHANGELOG.md.

[gemini-code-assist]

Consider checking the PHAuthorizationStatus returned in the handler before attempting to save the photo. This would make the logic clearer and avoid an unexpected failure if permissions are denied. Also, the indentation in this method is inconsistent with the project's style.¹

- (BOOL)application:(UIApplication *)application
    didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    [GeneratedPluginRegistrant registerWithRegistry:self];

    if (@available(iOS 14, *)) {
        NSBundle *bundle = [NSBundle bundleForClass:[self class]];
        __block NSError *saveError = nil;
        [PHPhotoLibrary requestAuthorizationForAccessLevel:PHAccessLevelAddOnly handler:^(PHAuthorizationStatus status) {
            if (status == PHAuthorizationStatusAuthorized) { // Check authorization status
                if (![PHPhotoLibrary.sharedPhotoLibrary performChangesAndWait:^{
                    NSURL *jpgImageTall = [bundle URLForResource:@"jpgImageTall" withExtension:@"jpg"];
                    [PHAssetChangeRequest creationRequestForAssetFromImageAtFileURL:jpgImageTall];
                } error:&saveError]) {
                    os_log_error(OS_LOG_DEFAULT, "%@", saveError);
                }
            } else {
                os_log(OS_LOG_DEFAULT, "Photos authorization not granted");
            }
        }];
    }
    return [super application:application didFinishLaunchingWithOptions:launchOptions];
}

Style Guide References

Footnotes

1. Code should follow relevant style guides and use auto-formatters to ensure consistency. (link) ↩

[jmagman]

Consider checking the PHAuthorizationStatus returned in the handler before attempting to save the photo.

This is fine for a test app where we know our permission handler will do the right thing.

the indentation in this method is inconsistent with the project's style

Very true, waiting on the clang formatter to run.

[jmagman]

The test images were being included in the RunnerUITest target, and were unused. Remove it.

[jmagman]

Include all test images to the example app resources (not just the RunnerTest unit test app) so they can be added when the app finishes launching. Right now only one is added, but I can see someone in the future trying to add a new one and being confused why the URL is nil.
These images are very small.

[jmagman]

There's still one failure on Xcode 26:
https://logs.chromium.org/logs/flutter/buildbucket/cr-buildbucket/8707266248916852641/+/u/Run_package_tests/native_test/stdout

error: -[ImagePickerFromLimitedGalleryUITests testSelectingFromGallery] : Failed to not hittable: Image, {{0.0, 297.0}, {128.9, 129.0}}, label: 'Photo, August 06, 10:41 AM'

https://storage.googleapis.com/flutter_logs/flutter/269ff996-7acf-45ab-b134-a2779612650f/native%20test/269ff996-7acf-45ab-b134-a2779612650f/xcodebuild-2025-08-06T10:43:40.234490.zip

[vashworth]

LGTM